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Sulfur patents

      

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




 Protective coating for printed conductive pattern on patterned nanowire transparent conductors patent thumbnailnew patent Protective coating for printed conductive pattern on patterned nanowire transparent conductors
A method for making an electronic assembly includes applying a protective layer including an organosulfur compound to at least a portion of a patterned conductive interconnect circuit, wherein the conductive interconnect circuit overlies at least a portion of a conductive layer on a substrate, and wherein the conductive layer includes nanowires; and engaging an electrical contact of an electronic component with the protective layer to electrically connect the electronic component and the patterned conductive layer.. .
3m Innovative Properties Company


 Advanced graphite additive for enhanced cycle-life of deep discharge lead-acid batteries patent thumbnailnew patent Advanced graphite additive for enhanced cycle-life of deep discharge lead-acid batteries
An advanced graphite deep discharge lead acid battery is described including: a deep storage lead acid cell energy storage device comprises: an electrode comprising lead; an electrode comprising lead dioxide; a separator between the electrode comprising lead and the electrode comprising lead dioxide; an aqueous solution electrolyte containing sulfuric acid; and a carbon-based additive having a specific surface area of approximately 250 to 550 m2/g.. .
Exide Technologies


 Positive-electrode mixture and all-solid-state sodium-sulfur battery patent thumbnailnew patent Positive-electrode mixture and all-solid-state sodium-sulfur battery
The present invention aims to maximize the advantageous physical properties of sulfur and provide a cathode mixture that can be suitably used in a cathode mixture layer of an all-solid-state sodium-sulfur battery in which charge/discharge capacity can be ensured even during operation at normal temperature. The present invention also aims to provide an all-solid-state sodium-sulfur battery including a cathode mixture layer containing the cathode mixture.
Nagase Chemtex Corporation


 Carbon nanotube-sulfur composite comprising carbon nanotube aggregates, and  preparing same patent thumbnailnew patent Carbon nanotube-sulfur composite comprising carbon nanotube aggregates, and preparing same
The present application relates to a carbon nanotube-sulfur composite including a carbon nanotube aggregate, and a method for preparing the same.. .
Lg Chem, Ltd.


 Durable carbon-coated li2s core-shell materials for high performance lithium/sulfur cells patent thumbnailnew patent Durable carbon-coated li2s core-shell materials for high performance lithium/sulfur cells
The disclosure provides methods for producing uniformly sized lithium sulfide materials which are coated with one or more durable and conductive carbon shells that impede the polysulfide shuttle. The disclosure further provides for the carbon coated lithium sulfide materials made therefrom, and the use of these materials in lithium sulfide batteries..
The Regents Of The University Of California


 All-solid-state cathode materials, cathodes, batteries and methods patent thumbnailnew patent All-solid-state cathode materials, cathodes, batteries and methods
Described herein are various embodiments of methods of making an all-solid-state electrode material for a rechargeable battery comprising in a first mixing step, mixing one of a transition metal phosphide, a transition metal oxide, and a transition metal sulfide with sulfur to produce a first mixture, in a first heat-treating step, heating the first mixture to a temperature ranging between about 250 degrees c. And about 450 degrees c.
The Regents Of The University Of Colorado, A Body Corporate


 Two compartment lithium sulfur cell and assembly method patent thumbnailnew patent Two compartment lithium sulfur cell and assembly method
Electrochemical cells for lithium-sulfur batteries include a cathode comprising a sulfur containing material, an anode comprising lithium, a separator between the anode and cathode and an interlayer extending from a perimeter of the separator in a direction perpendicular to a stacking direction. The interlayer is configured to prevent polysulfide migration from the cathode to the anode..
Nissan North America, Inc.


 Chip resistor and  manufacturing the same patent thumbnailnew patent Chip resistor and manufacturing the same
A chip resistor includes an upper electrode provided on a substrate, a resistor element connected to the upper electrode, and a side electrode connected to the upper electrode. The side electrode, arranged on a side surface of the substrate, has two portions overlapping with the obverse surface and reverse surface of the substrate, respectively.
Rohm Co., Ltd.


 Gas chromatograph intermediate processing apparatus and gas chromatograph patent thumbnailnew patent Gas chromatograph intermediate processing apparatus and gas chromatograph
To provide a gas chromatograph allowing a substance led out from a measurement target component to reach a reduction reaction part and capable of preventing occurrence of a quantification error while preventing corrosion and sensitivity deterioration of a metal pipeline due to measurement non-related components such as halogen, sulfur and the like. The gas chromatograph includes: an oxidation reaction part into which a sample gas passed through a column is introduced and which oxidizes the measurement target component and converts the resultant measurement target component to a prescribed intermediate component to be led out therefrom; and an intermediate gas flow path for deriving the intermediate component from the oxidation reaction part, and in this configuration, a reagent to be reacted with measurement non-related components is provided in the intermediate gas flow path, and the reagent contains a metal element to be reacted with only oxygen..
Horiba Stec, Co., Ltd.


 Boiler system and power plant including the same patent thumbnailnew patent Boiler system and power plant including the same
A boiler system is provided including: a boiler that burns fuel containing sulfur content, chlorine content, and water content to generate a combustion gas; a bagfilter that removes sulfur oxide; a denitration section that removes nitrogen oxide; a desulfurizing absorbent supply section that mixes a desulfurizing absorbent into the combustion gas on an upstream side of the bagfilter; and a reformer that mixes a denitrating reagent into the combustion gas on an upstream side of the denitration section, wherein the bagfilter performs dry desulfurization, and a temperature of the combustion gas passing through the bagfilter and flowing into the denitration section is higher than 200° c. And 350° c.
Mitsubishi Hitachi Power Systems, Ltd.


new patent

Engine control system and method based on fuel quality


An engine control system and method includes sensing the quality of fuel in the engine relative to emissions, by for example sensing the level of an emission related constituent, such as sulfur. A fuel quality sensor detects a fuel, quality of a fuel such as the sulfur level the fuel, and provides a signal in response to the fuel quality.
Cummins Intellectual Property, Inc.


new patent

Iron-based alloys and methods of making and use thereof


An iron-based alloy includes (in weight percent) carbon from about 1 to about 2 percent; manganese up to about 1 percent; silicon up to about 1 percent; nickel up to about 4 percent; chromium from about 10 to about 25 percent; molybdenum from about 5 to about 20 percent; tungsten up to about 4 percent; cobalt from about 17 to about 23 percent; vanadium up to about 1.5 percent; boron up to about 0.2 percent; sulfur up to about 0.03 percent; nitrogen up to about 0.4 percent; phosphorus up to about 0.06 percent; niobium up to about 4 percent; iron from about 35 to about 55 percent; and incidental impurities. The chromium/molybdenum ratio of the iron-based alloy is from about 1 to about 2.5.
L.e. Jones Company


new patent

Aliphatic-aromatic heterocyclic compounds and uses thereof in metal extractant compositions


The invention relates to an aliphatic-aromatic heterocyclic compound a which comprises at least two heterocyclic rings b and c, to a metal extractant composition e comprising this aliphatic-aromatic heterocyclic compound a and an organic acid d having at least one carboxylic, sulfonic, sulfuric, phosphinic, phosphonic, or phosphoric acid group, and to a process to extract one or more metals m selected from the group consisting of ni and co from an aqueous acidic leach solution pl comprising ions of at least one of the metals m, and further, at least one kind of further ions selected from the group consisting of fe ions, al ions, cu ions, mg ions, mn ions, and also silicate anions, by mixing the solution pl with an extractant composition e, separating the organic and aqueous phases, and recovering the metal m from the separated organic phase.. .
The University Court Of The University Of Edinburgh


new patent

Tanning process for obtaining leather


The invention concerns a process for tanning hide to obtain leather. The general process for obtaining the intermediary wet blue stage comprises the following steps: a) a picking step with acid and salt, followed by b) a tanning step with chromium salt, followed by c) a basification step.
Rhodia Poliamida E Especialidades Ltda


new patent

Method for optimizing catalyst loading for hydrocracking process


The invention relates to a method for optimizing layered catalytic processes. This is accomplished by testing various catalysts with a compound found in a feedstock to be tested, to determine the facility of the catalyst in hydrogenating, hydrosulfurizing, or hydrodenitrogenating the molecule, and hence the feedstock.
Japan Cooperation Center, Petroleum


new patent

Selective liquid-liquid extraction of oxidative desulfurization reaction products


The present invention provides selective extraction of sulfoxides, or sulfoxides in combination with sulfones, from hydrocarbon mixtures containing these compounds. A significant advantage of the invention is that oxidation products resulting from oxidative desulfurization of hydrocarbon feedstocks are selectively extracted with minimum co-extraction of non-oxidized products such as valuable hydrocarbon fuel components..
Saudi Arabian Oil Company


new patent

Process for producing stabilized polyacrylamides


The present application relates to a process for producing a composition comprising at least one acrylamide polymer p and at least one stabilizer st, wherein the acrylamide polymer p is obtained in the form of a polymer gel, and the acrylamide polymer gel having a water content in the range from 50% to 80% by weight, based on the overall polymer gel, is treated with an aqueous solution ss comprising at least one stabilizer st selected from the group consisting of sulfur compounds, n-oxides, organic nitroso compounds, aromatic hydroxyl compounds and ketones.. .
Basf Se


new patent

Method for forming a high molecular weight polyarylene sulfide


A method for forming a polyarylene sulfide is provided. The method comprises supplying a waste composition to a vessel, the waste composition containing arylene sulfide byproducts, such as an arylene sulfide oligomer, cyclic polyarylene sulfide, and/or fine polyarylene sulfide particles.
Ticona Llc


new patent

Derivative of butylphthalide and preparation method and use thereof


(−)-(s)-3-(3′-hydroxy)-butylphthalide (a compound shown by formula i) and an ester formed of the same and an acid are proved by experiments to be applicable to treatment and prevention of cerebral ischemic diseases and have a sleep-improving function. The acid refers to a pharmaceutically acceptable inorganic or organic acid.
Shijiazhuang Yiling Pharmaceutical Co., Ltd.


new patent

Ammonium bisulfate catalyzed dehydration of beta-hydroxy acids


Hydroxycarboxylic acids, e.g., 3-hydroxypropionic acid, and/or their ammonium salts are dehydrated to their corresponding unsaturated carboxylic acids, e.g., acrylic acid, by a process that uses a catalyst comprising ammonium bisulfate. The use of ammonium bisulfate reduces or eliminates the problems associated with processes that use sulfuric acid as a dehydrating catalyst, e.g, excess sulfuric acid consumption and/or recovery..
Dow Global Technologies Llc


new patent

In-situ catalyst sulfiding, passivating and coking systems and methods


A system and method for efficiently treating metal catalyst resident in a reactor vessel comprises a sulfiding module, a sulfur source, an ammonia source, and/or a coking source, a hydrogen sulfide detection module, a hydrogen gas detection module, a ph detection module, an ammonia gas detection module and a remote computer all arranged and configured to communicate wirelessly and to allow remote control and monitoring of the modules and process so that catalyst may be sulfided, passivated and/or soft-coked in situ.. .
Reactor Resources, Llc


new patent

Heterocyclic coupling catalysts and methods related thereto


This disclosure relates to synthetic coupling methods using a catalytic molecule comprising two bonded atoms wherein one atom is an amide nitrogen and the second atom is not nitrogen or carbon, such as sulfur, such as a sufur amide nitrogen bond, typically in a heterocycle, such as substituted benzoisothiazolones and derivatives thereof, as a catalyst in the transformation of hydroxy group containing compounds to amides, esters, ketones, and other carbon to heteroatom or carbon to carbon transformations.. .
Emory University


new patent

Resid hydrotreating catalyst containing titania


Improved catalyst supports, supported catalyst, and method of preparing and using the catalysts for the hydrodesulfurization of a residuum hydrocarbon feedstock are disclosed. The catalyst supports comprise titania alumina having 5 wt % or less titania and have greater than 70% of their pore volume in pores having a diameter between 70 Å and 130 Å and less than 2% in pores having a diameter above 1000 Å.
Advanced Refining Technologies Llc


new patent

Flue gas treatment device


Provided are: an nox removal unit to remove nitrogen oxide; an air preheater on a downstream side of the nox removal unit to recover heat; a precipitator on a downstream side of the air preheater to remove ash dust; a gas-liquid contact type desulfurization unit on a downstream side of the precipitator to remove sulfur oxide; an so3 removing agent supply unit to supply an so3 removing agent at a supply unit on an upstream side of the precipitator; and a wet state processing unit between the air preheater and the supply unit to supply water to a flue gas to be made into a wet state; the wet state processing unit having a stand-up portion, a partition unit and a droplet supply unit.. .
Mitsubishi Hitachi Power Systems, Ltd.


new patent

Method for removing sox from gas with compound alcohol-amine solution


A method for removing sox from a gas by using a compound alcohol-amine solution is provided. The compound alcohol-amine solution is made by mixing ethylene glycol and/or polyethylene glycol with hydroxyl and/or carboxyl organic compound having basic group containing nitrogen.
Peking University


new patent

Processes for preparing morphinan-6-one products with low levels of alpha, beta-unsaturated ketone compounds


The present invention generally relates to processes for preparing highly pure morphinan-6-one products. The processes involve reducing the concentration of alpha, beta unsaturated ketone compounds present as impurities in morphinan 6 one products or reaction mixtures including morphinan 6 one compounds by treatment with a sulfur-containing compound..
Mallinckrodt Llc


new patent

Agent for reducing visceral fat weight


Wherein each of r1 and r2, which may be identical to or different from each other, represents, for example, a hydrogen atom; each of r3a, r3b, r4a, and r4b, which may be identical to or different from one another, represents, for example, a hydrogen atom or a halogen atom, or r3a and r3b or r4a and r4b may bond together to form an alkylenedioxy group; x represents an oxygen atom, a sulfur atom, or n—r5 (r5 represents, for example, a hydrogen atom or a c1-4 alkyl group); y represents, for example, an oxygen atom, an s(o)l group (l is a number of from 0 to 2), or a carbonyl group; z represents ch or n; n is a number of from 1 to 6; and m is a number from 2 to 6, a salt of the compound, or a solvate of the compound or the salt.. .

new patent

Herbicide composition


A herbicidal composition comprising tiafenacil or its salt and flazasulfuron or its salt.. .

System for combined hydrogen and electricity production using petroleum fuels


A sofc system for producing a refined carbon dioxide product, electrical power, and a compressed hydrogen product is presented. The system can include a hydrodesulfurization system, a steam reformer, a water-gas shift reactor system, a hydrogen purification system, a hydrogen compression and storage system, a pre-reformer, and a co2 purification and liquidification system..
Saudi Arabian Oil Company


High-performance cathode materials for lithium sulfur batteries from lignosulfonate


Methods of making cathodes for lithium-sulfur batteries are disclosed, in addition to cathodes and batteries containing the cathodes. A method of making a cathode is disclosed which includes extracting lignosulfonate from brown liquor, pyrolyzing the lignosulfonate, carbonizing the pyrolyzed lignosulfonate to form a carbon-sulfur compound, and forming the carbon-sulfur compound into a cathode.
Rensselaer Polytechnic Institute


Pre-sulfurized cathode for alkali metal-sulfur secondary battery and production process


A method of producing a pre-sulfurized active cathode layer for a rechargeable alkali metal-sulfur cell; the method comprising: (a) preparing an integral layer of porous graphene structure having a specific surface area greater than 100 m2/g; (b) preparing an electrolyte comprising a solvent and a sulfur source; (c) preparing an anode; and (d) bringing the integral layer and the anode in ionic contact with the electrolyte and imposing an electric current between the anode and the integral layer (serving as a cathode) to electrochemically deposit nano-scaled sulfur particles or coating on the graphene surfaces. The sulfur particles or coating have a thickness or diameter smaller than 20 nm (preferably <10 nm, more preferably <5 nm or even <3 nm) and occupy a weight fraction of at least 70% (preferably >90% or even >95%)..

Alkali metal-sulfur secondary battery containing a pre-sulfurized cathode and production process


A method of producing a pre-sulfurized active cathode layer for a rechargeable alkali metal-sulfur cell; the method comprising: (a) preparing an integral layer of meso-porous structure of a carbon, graphite, metal, or conductive polymer having a specific surface area greater than 100 m2/g; (b) preparing an electrolyte comprising a solvent and a sulfur source; (c) preparing an anode; and (d) bringing the integral layer and the anode in ionic contact with the electrolyte and imposing an electric current between the anode and the integral layer (serving as a cathode) to electrochemically deposit nano-scaled sulfur particles or coating on the graphene surfaces. The sulfur particles or coating have a thickness or diameter smaller than 20 nm (preferably <10 nm, more preferably <5 nm or even <3 nm) and occupy a weight fraction of at least 70% (preferably >90% or even >95%)..

Coating material for forming semiconductors, semiconductor thin film, thin film solar cell and manufacturing thin film solar cell


The present invention aims to provide a coating liquid for forming a semiconductor which facilitates large-area production of a semiconductor that is useful as a semiconductor material of a solar cell with high conversion efficiency and small variation in the conversion efficiency, and enables control of the film thickness. The present invention also aims to provide a semiconductor thin film produced from the coating liquid for forming a semiconductor, a thin film solar cell, and a method for producing the thin film solar cell.
Sekisui Chemical Co., Ltd.


Anneal techniques for chalcogenide semiconductors


Techniques for precisely controlling the composition of volatile components (such as sulfur (s), selenium (se), and tin (sn)) of chalcogenide semiconductors in real-time—during production of the material are provided. In one aspect, a method for forming a chalcogenide semiconductor material includes providing a s source(s) and a se source(s); heating the s source(s) to form a s-containing vapor; heating the se source(s) to form a se-containing vapor; passing a carrier gas first through the s-containing vapor and then through the se-containing vapor, wherein the s-containing vapor and the se-containing vapor are transported via the carrier gas to a sample; and contacting the s-containing vapor and the se-containing vapor with the sample under conditions sufficient to form the chalcogenide semiconductor material.
International Business Machines Corporation


Luminescent solar concentrator comprising tetra-substituted benzoheterodiazole compounds


A luminescent solar concentrator (lsc) comprising at least one tetra-substituted benzoheterodiazole compound having general formula (i): wherein: r1 and r2, equal to or different from each other, are selected from: c6-c40, preferably c6-c20 aryl groups, optionally substituted; c4-c40, preferably c5-c20, heteroaryl groups, optionally substituted; r3 and r4, equal to or different from each other, are selected from: halogen atoms such as, for example, fluorine, chlorine, bromine, iodine, preferably fluorine; linear or branched c1-c30, preferably c1-c20, trihalogenated alkyl groups; c6-c40, preferably c6-c20, aryloxyl groups optionally substituted; linear or branched c1-c30, preferably c1-c20, alkoxyl groups optionally substituted; c4-c40, preferably c5-c20, heteroaryloxyl groups optionally substituted; z represents a sulfur atom, an oxygen atom or a selenium atom; a nr5 group wherein r5 represents a hydrogen atom, or it is selected from linear or branched c1-c24, preferably c6-c24, alkyl groups, optionally containing heteroatoms; a cr6r7 group wherein r6 and r7, equal to or different from each other, represent a hydrogen atom, or they are selected from linear or branched c1-c30, preferably c6-c24, alkyl groups, optionally containing heteroatoms, linear or branched c1-c30, preferably c6-c24, alkoxyl groups, optionally substituted, c3-c30, preferably c4-c24, cycloalkyl groups, optionally substituted, or, r6 and r7 can be optionally bound to each other to form, together with the other atoms to which they are bound, a cycle containing from 3 to 6 carbon atoms, saturated, unsaturated, or aromatic, optionally substituted with linear or branched c1-c30, preferably c1-c15, alkyl groups, said cycle optionally containing heteroatoms such as, for example, oxygen, sulfur, nitrogen, silicon, phosphorous, selenium.. .
Eni S.p.a


Solar battery


A solar battery according to an embodiment comprises: a support substrate; a rear electrode layer arranged on the support substrate; a light absorbing layer arranged on the rear electrode layer; a buffer layer arranged on the light absorbing layer; and a front electrode layer arranged on the buffer layer, wherein the buffer layer comprises zn(o,s), and the content of sulfur (s) in the buffer layer increases towards the front electrode layer starting from the light absorbing layer. .
Lg Innotek Co., Ltd.


Substrate processing apparatus


A supply flow passage branches into a plurality of upstream flow passages. A plurality of discharge ports are respectively disposed at a plurality of positions differing in distance from a rotational axis of a substrate.
Screen Holdings Co., Ltd.


Toner for developing electrostatic charge image and preparing the same


A toner for developing an electrostatic charge image, the toner including: elemental iron, wherein a content of the elemental iron is in a range of 1.0×103 to 1.0×104 ppm, based on a total weight of the toner; elemental silicon, wherein a content of the elemental silicon is in a range of 1.0×103 to 5.0×103 ppm, based on a total weight of the toner; elemental sulfur, wherein a content of the elemental sulfur is in a range of 500 to 3,000 ppm, based on a total weight of the toner; optionally elemental fluorine, wherein a content of the elemental fluorine, if present, is in a range of 1.0×103 to 1.0×104 ppm; and a binder resin. .
Samsung Electronics Co., Ltd.


Filter and system for removing emulsified water from a liquid


A system for increasing the efficiency of separating two liquids through filtration is disclosed. In a detailed example, water (both free and emulsified) is separated from diesel fuel, along with contaminants.

Anneal techniques for chalcogenide semiconductors


Techniques for precisely controlling the composition of volatile components (such as sulfur (s), selenium (se), and tin (sn)) of chalcogenide semiconductors in real-time—during production of the material are provided. In one aspect, a method for forming a chalcogenide semiconductor material includes providing a s source(s) and a se source(s); heating the s source(s) to form a s-containing vapor; heating the se source(s) to form a se-containing vapor; passing a carrier gas first through the s-containing vapor and then through the se-containing vapor, wherein the s-containing vapor and the se-containing vapor are transported via the carrier gas to a sample; and contacting the s-containing vapor and the se-containing vapor with the sample under conditions sufficient to form the chalcogenide semiconductor material.
International Business Machines Corporation


High strength, corrosion resistant austenitic alloys


An austenitic alloy may generally comprise, in weight percentages based on total alloy weight: up to 0.2 carbon; greater than 2.0 up to 20.0 manganese; 0.1 to 1.0 silicon; 14.0 to 28.0 chromium; 15.0 to 38.0 nickel; 2.0 to 9.0 molybdenum; 0.1 to 3.0 copper; 0.08 to 0.9 nitrogen; 0.1 to 5.0 tungsten; 0.5 to 5.0 cobalt; up to 1.0 titanium; up to 0.05 boron; up to 0.05 phosphorus; up to 0.05 sulfur; iron; and incidental impurities.. .
Ati Properties, Inc.


High tensile strength steel wire


A high tensile strength steel wire having as steel composition: a carbon content ranging from 0.20 weight percent to 1.00 weight percent, e.g. From 0.3 weight percent to 0.85 weight percent, e.g.
Nv Bekaert Sa


Lubricating oil compositions with enhanced piston cleanliness


Disclosed herein is lubricating oil composition for providing enhanced piston cleanliness in an internal combustion engine. The lubricating oil composition include (a) from about 50 to about 65 wt.
Chevron Oronite Technology B.v.


Lubricating oil compositions with enhanced piston cleanliness


Disclosed herein is lubricating oil composition for providing enhanced piston cleanliness in an internal combustion engine. The lubricating oil composition includes (a) greater than 65 wt.
Chevron Oronite Technology B.v.


Low sulfur marine distillate fuel trunk piston engine oil composition


The present invention generally relates to a trunk piston engine oil composition designed for use with low sulfur distillate fuel where the lubricating oil has a low base number but is capable of providing oxidative stability, viscosity increase control, and improved detergency performance. The present invention also generally relates to a method for lubricating a trunk piston engine and a method for operating a trunk piston engine using said trunk piston engine oil composition..
Chevron Oronite Technology B.v.


Low sulfur marine distillate fuel trunk piston engine oil composition


The present invention generally relates to a trunk piston engine oil composition designed for use with low sulfur distillate fuel where the lubricating oil has a low base number but is capable of providing oxidative stability, viscosity increase control, and improved detergency performance. The present invention also generally relates to a method for lubricating a trunk piston engine and a method for operating a trunk piston engine using said trunk piston engine oil composition..
Chevron Oronite Technology B.v.


Use of sulfur and selenium compounds as precursors to nanostructured materials


The presently disclosed subject matter provides processes for preparing nanocrystals, including processes for preparing core-shell nanocrystals. The presently disclosed subject matter also provides sulfur and selenium compounds as precursors to nanostructured materials.
The Trustees Of Columbia University In The City Of New York


Methods of making rosin esters


Provided herein are methods of making rosin esters. The methods can involve contacting a rosin ester with a microporous adsorbent.
Arizona Chemical Company, Llc


Processes and lignin separation in biorefineries


The present invention generally provides methods of improving lignin separation during biomass fractionation with an acid to release sugars and a solvent for lignin (such as ethanol). In some embodiments, a digestor is employed to fractionating a feedstock in the presence of a solvent for lignin, sulfur dioxide, and water, to produce a liquor containing hemicellulose, cellulose-rich solids, and lignin.
Api Intellectual Property Holdings, Llc


Method and system for preparing caprolactam


The present disclosure provides a method for preparing a caprolactam and the method includes steps of subjecting cyclohexanone oxime and sulfuric acid to a beckmann rearrangement reaction to obtain a rearrangement mixture; neutralizing the rearrangement mixture and extracting the neutralized rearrangement mixture using an organic solvent sequentially; and subjecting the extracted organic solution to a hydrogenation reaction so as to simplify the process to produce a high quality caprolactam.. .
China Petrochemical Development Corporation


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 topics:
  • Sulfuric Acid
  • Circulation
  • Combustion
  • Recirculating
  • Hydrogen Peroxide


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