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Sulphur patents

      

This page is updated frequently with new Sulphur-related patent applications.




 Hydrogen-assisted adsorption of sulphur compounds from olefin mixtures patent thumbnailnew patent Hydrogen-assisted adsorption of sulphur compounds from olefin mixtures
The invention relates to a process for purifying hydrocarbon mixtures, in which a contaminated hydrocarbon mixture comprising olefins having three to eight carbon atoms is at least partly freed of sulphur-containing contaminants by contacting it with a solid sorbent, the hydrocarbon mixture being exclusively in the liquid state during the contact with the sorbent. The problem that it addressed was that of virtually completely removing sulphur compounds present in the mixture without forming new sulphur compounds again at the same time.
Evonik Degussa Gmbh


 Method of controlling a wet scrubber useful for removing sulphur dioxide from a process gas patent thumbnailnew patent Method of controlling a wet scrubber useful for removing sulphur dioxide from a process gas
A wet scrubber for cleaning a process gas containing sulphur dioxide comprises an absorption vessel for contacting the process gas with an absorption liquid to absorb sulphur dioxide from the process gas, a sensor for measuring a concentration in the absorption liquid, and a control unit. The control unit is adapted to receive a measurement signal from the sensor and to control, based on the measured concentration, at least one wet scrubber operating parameter influencing the concentration in the absorption liquid..
Alstom Technology Ltd


 Method for patterning of laminated magnetic layer patent thumbnailMethod for patterning of laminated magnetic layer
A microelectronic device is formed by forming a stack of alternating layers of a magnetic material and a dielectric material. An etch mask is formed over the magnetic laminate layer.
Texas Instruments Incorporated


 A  treating sulphate-containing waters patent thumbnailA treating sulphate-containing waters
The invention relates to a method for processing sulphate-containing water. The method contains stages in which sulphate-containing water is directed to an anaerobic bioreactor, and an anaerobic bacterial strain that converts sulphate to hydrogen sulphide converts the sulphate contained in the water to hydrogen sulphide gas.

 Process for preparing a urea-sulphur fertilizer patent thumbnailProcess for preparing a urea-sulphur fertilizer
A process for preparing a urea-sulphur fertiliser is disclosed. Urea and sulphur are supplied to a dispersion mill wherein a rotor turns within a slotted stator, thereby providing a dispersion of molten urea and molten sulphur; and the dispersion of molten urea and molten sulphur is supplied to a forming unit to provide the urea-sulphur fertiliser..
Shell Oil Company


 Non noble metal based diesel oxidation catalyst patent thumbnailNon noble metal based diesel oxidation catalyst
Disclosed is a cheap and efficient non noble metal based catalyst for the oxidation of diesel or hydrocarbons, its synthesis and its application for diesel oxidation at low temperature. The catalyst comprises a mixed oxide of manganese and cerium, or manganese, cerium and zirconium.
Council Of Scientific & Industrial Research


 A new low mfr polymer composition, power cable insulation and power cable patent thumbnailA new low mfr polymer composition, power cable insulation and power cable
The present invention relates to a polymer composition comprising a polyolefin, peroxide and a sulphur containing antioxidant, wherein said peroxide is present in an amount which corresponds to x mmol —o—o—/kg polymer composition and said sulphur containing antioxidant is present in an amount which corresponds to y mmol —oh/kg polymer composition, wherein y1≦y≦y2, x≦45 and 0.9*y+m≦x≦n−k*y, wherein y1 is 0.50 and y2 is 10, and m is 0.8, n is 70 and k is 4.7; and wherein said polymer composition has a melt flow rate (mfr) of less than 1.7, and said polymer composition comprises less than 0.05% by weight (wt %) 2,4-diphenyl-4-methyl-1-pentene; a crosslinked polymer composition, and use thereof, a power cable insulation, a power cable, useful in high voltage (hv dc) and extra high voltage (ehv dc) direct current applications, and a method for reducing electrical conductivity of a crosslinked polymer composition.. .
Borealis Ag


 Hyrdogenated nitrile rubber containing phosphine oxide or diphosphine oxide patent thumbnailHyrdogenated nitrile rubber containing phosphine oxide or diphosphine oxide
Novel hydrogenated nitrile rubbers are provided, which include phosphine oxides and/or diphosphine oxides and a specific content of halogens, and which enable access to vulcanizable mixtures and corresponding vulcanizates that possess improved moduli and compression set values. These novel hydrogen nitrile rubbers are obtained by a production process, in which the hydrogenated nitrile rubbers are reacted with at least one specific sulphur compound..
Arlanxeo Deutschland Gmbh


 Improvements in or relating to organic compounds patent thumbnailImprovements in or relating to organic compounds
A process for the hydrogenation of a substrate comprising a carbon heteroatom double bond in the presence of a transition metal complex comprising a tridentate or bisdentate-ligand containing a nitrogen, sulphur and phosphorus atom, of which at least the n- and p- and optionally also the s-atom coordinates with the transition metal.. .
Givaudan Sa


 Catalyst for the synthesis of methyl mercaptan and process for producing methyl mercaptan from synthesis gas and hydrogen sulphide patent thumbnailCatalyst for the synthesis of methyl mercaptan and process for producing methyl mercaptan from synthesis gas and hydrogen sulphide
The invention relates to a catalyst comprising an active component based on molybdenum and on potassium and a support based on hydroxyapatite, and also to a process for preparing said catalyst and a process for producing methyl mercaptan in a catalytic process by reaction of carbon monoxide, sulphur and/or hydrogen sulphide and hydrogen, comprising the use of said catalyst.. .
Arkema France


Urea fertilizer having improved hardness

The present invention discloses a urea fertiliser having a lignin compound and elemental sulphur dispersed through-out the fertiliser and having improved hardness.. .
Shell Oil Company

A new polymer composition, power cable insulation and power cable

The present invention relates to a polymer composition comprising a polyolefin, peroxide and a sulphur containing antioxidant, wherein said peroxide is present in an amount which corresponds to x mmol -0-0-/kg polymer composition and said sulphur containing antioxidant is present in an amount which corresponds to y mmol —oh/kg polymer composition, wherein y1≦y≦y2, x≦45 and 0.9*y+m≦x≦n−k*y, wherein y1 is 0.50 and y2 is 10, and m is 0.8, n is 70 and k is 4.7; and wherein said polymer composition has a melt flow rate (mfr) which is at least 1.7, and said polymer composition comprises less than 0.05% by weight (wt %) 2,4-diphenyl-4-methyl-1-pentene; a crosslinked polymer composition, and use thereof, a power cable insulation, a power cable, useful in high voltage (hv dc) and extra high voltage (ehv dc) direct current applications, and a method for reducing electrical conductivity of a crosslinked polymer composition.. .
Borealis Ag

Silane vulcanized thermoplastic elastomers

The present invention relates to novel polymer compositions, particularly in the form of thermoplastic vulcanisates, said compositions comprising the reaction product of a first polymer (rubber phase); a second polymer (thermoplastic phase); a carboxylic acid anhydride; either a vinylsilane in combination with a peroxide or a sulphursilane; and whereby said silane is allowed to react with the polymers first. The invention further provides for processes of manufacturing such compositions and for articles comprising such compositions..
Falcone Specialties Ag

New crosslinked polymer composition, power cable insulation and power cable

The present invention relates to a crosslinked polymer composition, which is obtained by crosslinking a polymer composition, which polymer composition has a melt flow rate (mfr) of at least 1.7 and comprises a polyolefin, peroxide and sulphur containing antioxidant, characterised by that the crosslinked polymer composition has an oxidation induction time, determined according to astm-d3895, iso/cd 11357 and en 728 using a differential scanning calorimeter (dsc), which oxidation induction time corresponds to z minutes, and comprises an amount of peroxide by-products which corresponds to w ppm determined according to btm2222 using hplc, wherein z1≦z≦z2, w1≦w≦w2, and w≦p−270*z, wherein z1 is 0 , z2 is 60, w1 is 0 and w2 is 9500, and p is 18500; and use thereof, a power cable insulation and a power cable, useful in high voltage (hv) and extra high voltage (ehv) cable applications direct current (dc) applications.. .
Borealis Ag

Lithium-sulphur cell

A lithium-sulphur cell comprising an anode comprising lithium metal or lithium metal alloy, a cathode comprising a mixture of electroactive sulphur material and solid electroconductive material, an electrolyte comprising a tetrafluoroborate salt and an organic solvent, wherein the tetrafluoroborate salt is present in the electrolyte at a concentration of 0.05 to 0.5m, and wherein the tetrafluoroborate salt is present in an amount, wherein the molar ratio of tetrafluoroborate anion, bf4, to sulphur, s, in the electroactive material is 0.009-0.09:1.. .
Oxis Energy Limited

A new crosslinked low mfr polymer composition, power cable insulation and power cable

The present invention relates to a crosslinked polymer composition, which is obtained by crosslinking a polymer composition, which polymer composition has a melt flow rate (mfr) of less than 1.7 and comprises a polyolefm, peroxide and sulphur containing antioxidant, characterised by that the crosslinked polymer composition has an oxidation induction time, determined according to astm-d3895, iso/cd 11357 and en 728 using a differential scanning calorimeter (dsc), which oxidation induction time corresponds to z minutes, and comprises an amount of peroxide by-products which corresponds to w ppm determined according to btm2222 using hplc, wherein z1≦z≦z2, w1≦w≦w2, and w≦p−270*z, wherein z1 is 0, z2 is 60, w1 is 0 and w2 is 9500, and p is 18500; and use thereof, a power cable insulation and a power cable, useful in high voltage (hv) and extra high voltage (ehv) cable applications direct current (dc) applications.. .
Borealis Ag

Morpholine bath and chemically depositing a layer

A chemical bath for depositing a layer made from at least metal and sulphur is described. Furthermore, a method for depositing such a layer is described.
Centre National De La Recherche Scientifique - Cnrs -

Persulfate bath and chemically depositing a layer

A chemical bath for depositing a layer made from at least metal and sulphur is described. A method for depositing such a layer is also presented.
Centre National De La Recherche Scientifique- Cnrs

Novel integrated process for the treatment of oil feeds for the production of fuel oils with a low sulphur and sediment

Treating a hydrocarbon feed having a sulphur content of at least 0.5% by weight, an asphaltenes content of at least 1% by weight, an initial boiling point of at least 340° c. And a final boiling point of at least 480° c., in order to obtain at least one deasphalted oil fraction with a sulphur content of 0.5% by weight or less and a sediment content of 0.1% by weight or less..
Ifp Energies Nouvelles

Electrolyte for a lithium-sulphur cell

An electrolyte for a lithium sulphur cell comprising at least one lithium salt and at least one organic solvent; and a surfactant, wherein the concentration of surfactant in the electrolyte is 0.5 3 weight %.. .
Oxis Energy Limited

Catalyst and its preparation

A catalyst including gold, or a compound thereof, and sulphur, a compound of sulphur, trichloroisocyanuric acid or a metal dichloroisocyanurate on a support, together with a process for manufacturing the catalyst and its use in a chemical process are described.. .
Johnson Matthey Plc

Method for producing a fluorine- and sulphur-bearing compound and salts thereof in an aqueous medium

The invention relates to a method for producing a fluorine- and sulphur-bearing compound of formula f—so—r (i) or f—so2—r (ii), comprising the reaction, in the presence of water, of at least one salt providing a fluoride anion and at least one halgoenosulfoxide compound of formula x—so—r′ (i0) from a halogenosulfonyl compound of formula x—so2—r′ (ii0), in which x is a halogen atom other than fluorine and r and r′ are each a group linked by a covalent bond to the sulphur atom, said bond linking the sulphur atom with a nitrogen atom. The invention also relates to a method for producing salts of a fluorine- and sulphur-bearing compound of formula f—so—r (i) or f—so2—r (ii) which are advantageously used as electrolyte salts, as precursors of antistatic agents or as surfactant precursors..
Rhodia Operations

Process for the preparation of lithium or sodium bis(fluorosulphonyl)imide

A process for the preparation of a bis(sulphonato)imide salt of formula: (iii) (so3−)—n−—(so3−) 3c+where c+ represents a monovalent cation, comprising the reaction of amidosulphuric acid of formula: (i) (oh)—so2—nh2 with a halosulphonic acid of formula: (ii) (oh)—so2—x where x represents a halogen atom, and comprising a reaction with a base which is a salt formed with the cation c. Also, a process for the preparation of bis(fluorosulphonyl)imide acid of formula: (v) f—(so2)—nh—(so2)—f and to a process for the preparation of lithium bis(fluorosulphonyl)imide salt of formula: (vii) f—(so2)—n−—(so2)—f li+..
Arkema France

Spirocyclic compounds containing spiro[indolyl-3,1'-pyrrolo[3,4-c]pyrrole] core and sulphur-containing amino acid residues

The present invention relates to spirocyclic compounds on the basis of 2-oxindole derivatives containing a spiro[indolyl-3,1′-pyrrolo[3,4-c]-pyrrole] core and biogenic sulphur-containing amino acid residues, which display a glucocorticoid-mimicking action by influencing 11β-hsd1 enzyme cortisone->cortisol conversion, or by inhibiting grs- or gitr- or mineralocorticoid receptors, or other targets, but do not interfere with steroidal haemostasis in hpa; and compositions containing same and their use for therapy as part of undifferentiated stroke therapy (in the absence of final verification of the stroke subtype) at various stages of acute ischemic stroke (ais), during the period of recovery from stroke and craniocerebral trauma, in patients with chronic cerebrovascular pathology (against a background of diabetes), in combinational therapy for alzheimer's disease and encephalopathy of various origin (discirculatory, alcoholic, infectious-toxic), and diabetes, combinational therapy for retinal degenerative eye diseases, as part of combinational therapy for metabolic syndrome (obesity, in patients suffering from cushing's syndrome, reaven metabolic syndrome (also known as syndrome x or insulin resistance syndrome) and other diseases where gcs hormones play a key role.. .

Electrolized water - amine compositions and methods of use

The invention is directed to a treatment fluid comprising electrolyzed water and an amine, and methods for producing and using same in the treatment of a gas or liquid containing a contaminant such as an acid gas or a sulphur compound.. .

Functionalized ketone-aldehyde condensation resins

A functionalized ketone-aldehyde condensation resin is produced by condensing a ketone and an aldehyde in the presence of at least one alcohol or alkoxylate thereof, wherein the alcohol comprises amino alcohols and derivatives thereof, hydroxybutyl vinyl ether, oh-functional acrylates, oh-functional terpenes, oh-functional halogen compounds, hydroxycarboxylic acids, sulphur-containing alcohols, hydroxyl-containing urea derivatives, carbohydrates, siloxanes, oh-functional phosphorus compounds or unsaturated alcohols.. .
Evonik Degussa Gmbh

Fragrance compounds

Wherein x and y are independently selected from the group consisting of —cr1r2r3, —nr4r5 and —or6, wherein r1 to r5 are selected from h and essentially hydrocarbon moieties that optionally comprise at least one oxygen, nitrogen or silicon atom, and r6 is selected from essentially hydrocarbon moieties that optionally comprise at least one oxygen, nitrogen or silicon atom; and, a is an essentially hydrocarbon moiety that optionally comprises at least one oxygen, sulphur, nitrogen or silicon atom, with the proviso that the compound a-cho is a fragrant aldehyde. The use of these compounds in laundry, household and personal care products confers a long-lasting freshness..

Composition

There is provided a stabilising composition for hot melt adhesives, the composition comprising: a first stabilising component comprising at least one phenolic antioxidant; a second stabilising component comprising at least one phosphite antioxidant; and a third stabilising component comprising at least one antioxidant containing a sulphur group having the formula —ch2-(s)x-ch2-, wherein x=1 or 2, and wherein neither of the —ch2- groups is directly bonded to an aromatic group.. .
Addivant Switzerland Gmbh

Novel compounds for regeneration of terminally-differentiated cells and tissues

The present invention discloses novel compounds and their use in medicine. Preferably the compounds are applicable in the therapy of disorders associated with damaged post-mitotic tissues in mammals.
Acousia Therapeutics Gmbh

Hydrated lime composition for flue gases treatment

The present invention relates to a hydrated-lime-based composition, to a method for producing such a composition and to the use thereof for treating fumes or flue gases (by means of a dry or substantially dry treatment process), in particular to reduce the chlorine, sulphur and halogen compounds in exhaust gases or flue gases, especially acid flue gases. Said composition comprise a high surface area hydrated lime, a first additive selected from nacl, na2so4 and cacl2, a sodium compound selected from naoh, na2co3 and nai— and less than 5% by weight water..
New Lime Development Sprl

Use of magnetic nanoparticles for depletion of aromatic compounds in oil

A method of treating crude oil comprising depleting the content of aromatic hydrocarbons comprising contacting the crude oil with super-paramagnetic or paramagnetic nanoparticles comprising chemical functional groups. The method increases the api gravity of crude oil and reduces the viscosity of said oil.
MÆrsk Olie Og Gas A/s

Pesticidally active bicyclic heterocycles with sulphur containing substituents

Compounds of the formula (i), and the agrochemically acceptable salts and n-oxides of those compounds, including all stereoisomers and tautomeric forms, and wherein the substituents are as defined in claim 1, are useful for controlling animal pests and can be prepared in a manner known per se.. .
Syngenta Participations Ag

Positive electrodes for lithium-sulphur batteries

The present invention pertains to an electrode-forming composition [composition (c)] comprising: (a) an aqueous latex comprising at least one fluoropolymer [polymer (f)] comprising recurring units derived from vinylidene fluoride (vdf), at least one hydrogenated monomer [monomer (h)] and, optionally, at least one other fluorinated monomer [monomer (f)] different from vdf, and, homogeneously dispersed therein, (b) at least one powdery electrode-forming material consisting of sulphur [material (e)], (c) at least one powdery electrically conducting material [material (c)], (d) optionally, at least one surfactant [surfactant (s)], (e) optionally, at least one binding agent [agent (b)], and (f) optionally, less than 10% by weight, based on the total weight of the composition (c), of at least one organic solvent [solvent (s)], wherein the polymer (f) in the aqueous latex is under the form of primary particles having an average primary particle size of less than 1 μm, as measured according to iso 13321. The present invention also pertains to a process for the manufacture of said composition (c) and to use of said composition (c) in a process for the manufacture of a positive electrode for a lithium-sulphur battery..
Solvay Sa

Flexible spacer for double-glazing

A description is made of a flexible spacer for double glazing made of polyisobutylene elastomer or butyl rubber iir (simple or halogenated), suitably loaded with both reinforcing and inert fillers. The spacer can be cross-linked with sulphur or peroxides.

Method of lubricating an internal combustion engine

The invention provides a method of lubricating an end-pivot finger follower valve train lash adjuster of a passenger car compression ignition internal combustion engine having a reference mass not exceeding 2610 kg comprising supplying to the internal combustion engine a lubricating composition comprising an oil of lubricating viscosity 0.01 wt % to 3 wt % of a dispersant viscosity modifier, and 0.01 wt % to 3 wt % of a zinc free sulphur-containing antiwear agent, wherein the lubricating composition has a sulphur-content of less than 5000 ppm, a phosphorus content of 1000 ppm or less, and a sulphated ash content of (typically 3000 to 12,000 ppm).. .
The Lubrizol Corporation

Composition for fertilizing agricultural land, a producing the composition and the use of said composition

The present invention relates to a composition for fertilizing desert land and making it agricultural, characterized in that it comprises animal excrement, plant waste, bentonite in an amount greater than 10%, essential macronutrients, essential micronutrients, agricultural sulphur, algae and effective microorganisms. The invention will be of use in agriculture, in particular for increasing the yields of soils that are not very fertile, such as deserts which form most of the countries of north africa and the middle east.

Multi-step system for treating selenium-containing wastewater

This specification describes a process and apparatus for treating water comprising selenium. A process is described having the steps of treating the wastewater influent using a biological reduction process to produce an intermediary stream and reducing the concentration of unconsumed constituents in the intermediary stream by means of filtration optionally with upstream coagulation or flocculation.
General Electric Company

Pesticidally active bi- or tricyclic heterocycles with sulfur containing substituents

Pesticidally active bi- or tricyclic heterocycles with sulphur-containing substituents, stereoisomers and tautomeric forms thereof that can be used as insecticides and can be prepared in a manner known per se.. .
Syngenta Participations Ag

Device and optical measurement of a target

A device and a method for optical measurement of a target, wherein the target is irradiated with radiation beam (15) and a measurement beam (27) is received from the target and detected. Commonly used absorbance, reflectance and fluorescence measurements do not provide adequate information in e.g.
Teknologian Tutkimuskeskus Vtt

Process for the conversion of a paraffinic feedstock

The invention relates to a process for the conversion of a paraffinic feedstock that comprises at least 50 wt % of compounds boiling above 370° c. And which has a paraffin content of at least 60 wt %, an aromatics content of below 1 wt %, a naphthenic content below 2 wt %, a nitrogen content of below 0.1 wt %, and a sulphur content of below 0.1 wt %, the process comprising: a) subjecting the paraffinic feedstock to a hydroprocessing step to obtain an at least partially isomerised feedstock; b) separating the at least partially isomerised feedstock into one or more middle distillate fractions and a first residual fraction, wherein step a) is carried out by contacting the paraffinic feedstock with a first catalyst having hydrocracking and hydroisomerising activity and then with a second catalyst having hydrocracking and hydroisomerising activity, wherein the second catalyst is more active in hydroisomerisation and less active in hydrocracking than the first catalyst..
Shell Oil Company

Sulphur cycle-associated denitrifying enhanced biological phosphorus removal (sd-ebpr) utilizing sulphur compounds as electron carriers for biological nutrient removal of wastewater treatment

Sewage treatment is performed by using sulphur to facilitate electron flow. A first cycle uses a sulphur composition having sulphur and/or sulphur compounds to transfer electrons from organic carbon to oxygen, nitrate and nitrite, and to convert phosphorus-containing compounds to solid material, which is retained in sewage sludge.
The Hong Kong University Of Science And Technology

Adjuvant compound

Wherein r1 and r2 are branched or straight groups having up to 17 atoms selected from carbon, nitrogen, oxygen and sulphur, n is 0 to and including 18, y is sulphur or selene, x is s or o and r is —oh or an organic group comprising one or more peptides, one or more nucleic acids, one or more antibodies or combinations thereof. The invention is also directed to process for preparing said compound and the use of said compound as an adjuvant.

Process for removal of sulphur from raw methanol

A method for purifying raw methanol containing sulfur compounds, wherein the method comprises the step of washing raw methanol with a non-polar organic solvent.. .
Invico Metanol Ab

Sulfur degasser apparatus and method

A novel system and method for degassing h2s and h2sx from liquid sulfur (sulphur) is disclosed. The system includes a degassing vessel with a plurality of cells.
Sandvik Process Systems Llc

Sulphur-based fertilizer composition with humic acid content

Disclosed herein are fertilizer compositions with enhanced sulphate release, methods of making the fertilizer compositions and methods of using the fertilizer compositions. The disclosed fertilizer compositions combine elemental sulphur with small amounts (relative to the sulphur) of humic acid to enhance delivery of sulphates to soil.
Tiger-sul Products (canada) Co.

Processes for preparing medicaments for the treatment of cardiovascular diseases and intermediates for use therein

The present invention provides a compound of formula n wherein: x is ch2, oxygen or sulphur; r1, r2 and r3 are the same or different and signify hydrogens, halogens, alkyl, alkyloxy, hydroxy, nitro, alkylcarbonylamino, alkylamino or dialkylamino group, wherein n is in the form of the individual r- and s-enantiomer or a mixture of the (r)- and (s)-enantiomer. The present invention also provides a compound of formula ma.
Bial - Portela & Ca., S.a.

Method for preparing oxysulphide and fluorinated derivatives by sulphination

The invention concerns a method for preparing an oxysulphide and fluorinated derivative, said method comprising the reacting, in the presence of an organic solvent, of: i) at least one compound of formula ea-coor (i), in which ea represents the fluorine atom or a group having 1 to 10 carbon atoms chosen from fluoroalkyls, perfluoroalkyls and fluoroalkenyls and r represents hydrogen, a monovalent cation or an alkyl group, and ii) a sulphur oxide, said method being such that the initial molar ratio (sulphur oxide/compound of formula (i)) is less than 0.4 and the concentration of sulphur oxide dissolved in the reaction medium is kept constant for the entire duration of the reaction to a value of between 0.2% and 3% by weight by means of continually adding said sulphur oxide to the reaction medium.. .
Rhodia Operations

Low temperature urea-scr operation in the presence of high sulphur flue gas

Systems and methods of continuous operation of a urea-scr system at low temperatures (200-350° c.) in the presence of high sox containing flue gas are described. The methods comprise introducing a solution of urea and an no2 forming compound, preferably an alkaline earth metal nitrate, into an exhaust stream before the exhaust stream contacts an scr catalyst..
Johnson Matthey Public Limited Company

A process for removing sulphide from an aqueous solution

A process for removing sulphide from an aqueous solution comprising sulphide is disclosed, in which the aqueous solution is subjected to sulphide-oxidising bacteria in the presence of oxygen in a reactor to oxidise sulphide to elemental sulphur. According to the process, a molecular-oxygen containing gas is supplied to a reactor containing the sulphide-oxidising bacteria in an aqueous medium, such that one or more aerated zones and one or more non-aerated zones are created in the aqueous medium with upward liquid flow in the aerated zones and downward liquid flow in the non-aerated zones; and a feed stream of the aqueous solution comprising sulphide is injected into the reactor in the one or more non-aerated zones, wherein the one or more aerated zone(s) are not separated from the one or more non-aerated zone(s) by means of vertically extending reactor internal..
Paques I.p. B.v.

Sulphur-free gas odorant

The present invention relates to a sulphur-free odorizing composition to be added into liquefied petroleum gas (lpg) in order to allow the user to sense any leakage in case of lpg leakages which might occur in the area of utilization.. .
Aygaz Anonim Sirketi

Laminated lithium-sulphur cell

A lithium-sulphur electrochemical cell comprising a laminate comprising: a lithium anode comprising a layer of lithium metal foil or lithium metal alloy foil; a cathode comprising an active sulphur material; a porous separator disposed between the lithium anode and the cathode; and an electrolyte; wherein: the laminate is folded in a zigzag configuration; and the cathode is offset relative to the lithium anode in the laminate, such that the cathode is accessible from one side of the laminate and the lithium anode is accessible from an opposite side of the laminate.. .
Oxis Energy Limited



Sulphur topics:
  • Desulphurization
  • Hydrochloric Acid
  • Oxalic Acid
  • Carbon Dioxide
  • Hydrocarbon
  • Chloric Acid
  • Magnesium Chloride
  • Boiling Point
  • Carboxylic Acid
  • Fatty Acid
  • Fatty Acids
  • Molybdenum
  • Long Chain
  • Hydrolysis
  • Exothermic Reaction


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    This listing is a sample listing of patent applications related to Sulphur for is only meant as a recent sample of applications filed, not a comprehensive history. There may be associated servicemarks and trademarks related to these patents. Please check with patent attorney if you need further assistance or plan to use for business purposes. This patent data is also published to the public by the USPTO and available for free on their website. Note that there may be alternative spellings for Sulphur with additional patents listed. Browse our RSS directory or Search for other possible listings.


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