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Calcium Hydroxide patents
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|| List of recent Calcium Hydroxide-related patents
|Tagatose production using simulated moving bed separation|
Disclosed is a process for the production of d-tagatose from lactose after acid hydrolysis to provide a hydrolysate having 1 equiv of d-glucose and 1 equiv of d-galactose for each unit of lactose converted. More particularly, the invention relates to a process for the isomerization of d-galactose to d-tagatose and the use of a simplified separation scheme based on simulated moving bed (smb) separation.
|Phosphate recovery from acid phase anaerobic digesters|
A method for recovering phosphate from sewage treatment plants using multi-stage anaerobic digestion includes the treatment of organic acid digest with calcium hydroxide, calcium oxide, and similar compounds to raise ph to near neutral values and precipitate calcium phosphate compounds such as brushite and similar amorphous compounds. The method includes the formation of calcium phosphates on weak-acid ion exchange columns and membranes in contact with organic acid digest.
|Additive for water-added bio fuel, water-added bio fuel, and method of producing the same|
An additive for water-added bio fuel of the present invention includes: sodium hypochlorite; sodium hydroxide; hydrochloric acid; magnesium chloride; and calcium hydroxide, and makes the water soluble in the fuel oil. Further, a method of producing an additive for water-added bio fuel of the present invention includes: a step of agitating and mixing by putting sodium hydroxide into a solution of sodium hypochlorite; a step of agitating and mixing by putting magnesium chloride and calcium hydroxide into a solution of sodium hypochlorite; and a step of agitating and mixing the two types of solutions..
|Process for inkjet paper and paper produced thereby|
A method for improving the print quality of paper, a process for preparing such paper and the paper produced thereby are disclosed. The method involves applying to the paper an aqueous solution comprising 0.15 to 6 weight percent calcium in the form of its hydroxide.
|Method and composition for removing latex paint|
Disclosed is a paint removing composition including an aluminum containing salt, calcium hydroxide, and calcium sulfate. When applied to wet latex paint, the composition neutralizes the paint molecules and causes the colloid to come out of suspension by the process of flocculation.
|Using the solid waste-quicklime membrane swqm process for the production of sodium hydroxide|
The proposed invention uses ion exchange technology to produce dilute caustic soda liquor from calcium hydroxide liquor ca(oh)2 followed by the reaction of carbon dioxide co2 with caustic soda to produce dilute sodium carbonate solution. Multiple reverse osmosis and acidic co2 sparging can concentrate the na2co3 liquor to 6-7%.
|Fluorine-containing elastomer composition and molded article made of same|
There is provided a polyol-crosslinkable fluorine-containing elastomer composition which is excellent in chemical resistance, solvent resistance (especially resistance to an acidic solvent) and fuel resistance (especially biofuel resistance) and is crosslinkable at the same crosslinking speed as in the case of using calcium hydroxide in a usual amount even without blending calcium hydroxide (or decreasing a blending amount of calcium hydroxide). The fluorine-containing elastomer composition comprises a polyol-crosslinkable fluorine-containing elastomer, a polyol crosslinking agent and a silicate of an alkali metal..
|Positive electrode material and positive electrode for nickel-zinc secondary battery and method for manufacturing positive electrode|
The present invention provides a positive electrode material for a nickel-zinc secondary battery, a positive electrode for a nickel-zinc secondary battery and a method for preparing the positive electrode. The positive electrode material for a nickel-zinc secondary battery provided by the present invention includes: 68 wt %˜69 wt % positive electrode active material, 0.6 wt %˜1 wt % yttrium oxide, 0.2 wt %˜0.6 wt % calcium hydroxide, 3.5 wt %˜4 wt % nickel powder, and a binder in balance; the positive electrode active material being a spherical nickel hydroxide coated with co (iii).
|Method of manufacturing carbon fiber|
A method of manufacturing carbon fibers, the method comprising the steps of: obtaining a supported catalyst by allowing a main catalyst element such as fe, co and ni and a co-catalyst element such as ti, v, cr, w and mo to be supported by a particulate carrier such as calcium carbonate, calcium hydroxide and calcium oxide; synthesizing fibrous carbons by contacting the supported catalyst with a carbon atom-containing material at synthesis reaction temperature; and then heat treating the resulting fibrous carbons at a temperature of 2000° c. Or higher, wherein the particulate carrier comprising a substance which undergoes pyrolysis near the synthetic reaction temperature..
|Method and apparatus for in-line production of milk of lime into an in-line production process of pcc arranged in connection with a fibrous web machine|
A method and apparatus for in-line production of milk of lime into an in-line production process of pcc arranged in connection with a fibrous web machine. In the solution, lime is slaked in a slaking apparatus at a temperature of at least 80 degrees.
|Narrow psd hydraulic cement, cement-scm blends, and methods for making same|
Hydraulic cements, such as portland cements and other cements that include substantial quantities of tricalcium silicate (c3s), dicalcium silicate (c2s), tricalcium aluminate (c3a), and/or tetracalcalcium alumino-ferrite (c4af), are particle size optimized to have increased reactivity compared to cements of similar chemistry and/or decreased water demand compared to cements of similar fineness. Increasing hydraulic cement reactivity increases early strength development and release of reactive calcium hydroxide, both of which enhance scm replacement and 1-28 day strengths compared to blends of conventional portland cement and one or more scms, such as coal ash, slag or natural pozzolan.
|Adhesive grout for plaster rehabilitation|
An adhesive grout for plaster rehabilitation. The grout formulation includes fluid petroleum coke, an acrylic resin, a pseudo-plastic thickener formed from an anionic thickener with ammonium hydroxide in a water solution to form a salt thereof, inert filler microspheres of an intermediate particle size, and inert filler particles of a small particle size, wherein the inert filler particles comprise diatomaceous earth, pyrogenic silica, or methylated silica.
|Calcium carbonate having a surface charge, the preparing process thereof and filler for producing a paper using the same|
The present invention relates to a calcium carbonate having a surface charge, the preparing process thereof and filler for producing a paper using the same. The present invention provides the process of preparing a calcium carbonate having a surface charge, characterized in that it comprises the following steps of: preparing a solution mixture of one or more monomer selected from the group consisting of calcium hydroxide, acrylic acid, acrylamide, or [2-(acryloyloxy)ethyl]-trimethylammonium chloride; removing dissolved gases such as oxygen and carbon dioxide in the said solution by injecting nitrogen (n2) gas; adjusting ph of the said solution; and inducing a reaction by adding polymerization initiator of a high molecule while injecting carbon dioxide to the said mixture..
|Automotive anit-contamination system|
An anti-contamination system having a container, a pump, a tube, an exhaust pipe, and a dispenser system. The pump is used to direct a water and calcium oxide solution through the tube to the dispenser system.
|Dry sorbent injection during non-steady state conditions in dry scrubber|
Methods of reducing emissions levels during upset periods such as startup are disclosed for use with a dry scrubber desulfurization system. A dry calcium hydroxide powder is injected into the gas flowpath and hydrated in the spray dryer absorber.
|Dry sorbent injection during steady-state conditions in dry scrubber|
Methods of reducing emissions levels during steady-state conditions are disclosed for use with a dry scrubber desulfurization system. A dry calcium hydroxide powder is injected into the gas flowpath and watered in the spray dryer absorber.
|Method to recover sugars of pre-treated lignocellulosic biomass liquids|
This specification discloses a process for the removal of solids and non-sugar components from a pre-treated lignocellulosic biomass stream by the precipitation of the non-sugar components with preferably barium hydroxide or calcium hydroxide. The precipitation removes the non-sugar components and some salts, leaving the glucose and xylose and other sugars in the liquid stream for further processing..
|Method and a system for precipitation of calcium carbonate and a product comprising calcium carbonate|
The invention relates to a method for precipitating calcium carbonate, in which method calcium hydroxide is introduced to a fibre suspension containing cellulose-containing fibres, the calcium hydroxide is allowed to attach onto the surfaces of fibres for a pre-determined time, and the aqueous suspension of calcium hydroxide and fibres is brought into contact with carbon dioxide for precipitating the calcium carbonate. The invention also relates to a corresponding system for precipitating calcium carbonate in connection with cellulose-containing fibres.
|Hydraulically set cement body for preservation of organic liquids|
An hydraulically set oil-permeable cement body is provided in the form of a stand-alone block or briquette for preserving cooking oil during deep fat frying, said body. It has substantially no free water or having a low free water content for resisting damage on immersion in cooking oil and initial heating and is enclosed in packaging that resists ingress of water or water vapour the block or briquette consists of >50 wt % of a mixture of milled white opc clinker and white opc, optionally silica 1-2 wt % and/or titania (tio2) 1-2 wt % and optionally further ingredients selected from calcium silicate, magnesium silicate, aluminium silicate, natural feldspars, natural sodium zeolites, natural calcium zeolites, synthetic sodium zeolites, synthetic calcium zeolites, wollastonite, calcium hydroxide, clays, pillared clays, activated clays/earths, talcs/kaolinite, amphiboles, granite porphyry, rhyolite, agalmatolite, porphyry, attapulgite and diatomaceous earth.
|Co2-capturing binder, production method thereof based on the selection, purification and optimisation of carbide lime, and agglomerates having an environmental activity|
The invention relates to co2 capturing binder with an amortized environmental cost, the method of manufacture thereof by means of selecting, purifying and optimizing the carbide lime paste for use as a cementing material, and aggregates for the manufacture of lime paints and slurries, stuccos, mortars and concretes having multiple applications in the construction industry, in architectural restoration, in public works and land conditioning, object of the present invention. It is basically characterized in that the raw material is the residue in the form of sludge generated in the industrial manufacture of acetylene (c2h2) from calcium carbide (cac2) the fundamental component of which is calcium hydroxide (ca(oh)2) in highly reactive nanometric formations treated in a specific manner according to the invention..
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Calcium Hydroxide topics: Calcium Hydroxide, Calcium Carbonate, Carbon Dioxide, Calcium Oxide, Calcium Sulfate, Sodium Carbonate, Sodium Hydroxide, Ammonium Hydroxide, Ammonium Chloride, Caustic Soda, Reverse Osmosis, Caustic Sod, Combustion, Aqueous Solution, Flocculation
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