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7588676 |
Base-facilitated production of hydrogen from carbonaceous matter
A base-facilitated process for producing hydrogen. Hydrogen is produced from a reaction of carbonaceous matter with a base and water, preferably through the formation of a bicarbonate or carbonate...
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7514060 |
Porous potassium carbonate having special pore structure and method for its production
A method for producing a porous potassium carbonate, which comprises calcining potassium hydrogen carbonate crystals having a mean particle diameter of from 100 to 1,000 μm at a temperature of the...
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7507388 |
Process for production of dense soda, light soda, sodium bicarbonate and sodium silicate from solutions containing bicarbonate
A process related to sodium chemicals production, including the processing of bicarbonate containing solutions obtained by solution mining of trona, nahcolite or wegscheiderite reserves and the...
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7494581 |
Production of hydrogen from non-cyclic organic substances having multiple alcohol functionality
A method of producing hydrogen gas from a reaction of an organic substance having multiple alcohol functionality with a base. Hydrogen can be produced in a reaction of a base with an organic...
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7481992 |
Base-facilitated reformation reactions of organic substances
A base-facilitated reformation reaction. Hydrogen is produced from a reaction of an organic substance with a base to form bicarbonate ion or carbonate ion as a by-product. The base-facilitated...
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7410627 |
Sodium carbonate and sodium bicarbonate production
A method for solution mining nahcolite, capable of extracting nahcolite from geological formations lean in nahcolite comprising injecting high pressure water (which may include recycled aqueous...
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7344688 |
Process for treating alkali metals charged with tritium or components contaminated with alkali metals charged with tritium
The invention relates to a process for treating alkali metals such as sodium charged with tritium or components contaminated with alkali metals such as sodium charged with tritium, in which the...
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7323150 |
Methods for recovering at least one metallic element from ore
A method for recovering at least one metallic element from ore or other material is described and includes reacting ore or other material with a salt capable of recovering the metallic element from...
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7255841 |
Sodium bicarbonate production method
A method of producing sodium bicarbonate having a high degree of purity and obtaining a net reduction in effluent waste water, as compared to prior processes, when starting from trona ore is...
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7241433 |
Process for the preparation of coated granular sodium percarbonate, and product obtainable by the process
The invention relates to a process for the preparation of coated granular sodium percarbonate having a low TAM value. The preparation is carried out by fluidized-bed spray granulation at a...
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7214355 |
Production of lithium compounds directly from lithium containing brines
Metal carbonates that are insoluble in water but that have a corresponding metal biocarbonate salt that is more than 75% by weight soluble in water are purified by preparing an aqueous slurry of...
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7148177 |
Method for producing alkali metal catalyst and use thereof for the side-chain alklation of alkyl aromatics
The invention relates to a process for the preparation of an alkali metal catalyst by mixing an alkali metal with pulverulent, solid potassium carbonate as support, wherein the potassium carbonate...
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7128886 |
Sodium carbonate and sodium bicarbonate production from nahcolitic oil shale
A method for solution mining nahcolite, capable of extracting nahcolite from geological formations lean in nahcolite comprising injecting high pressure water (which may include recycled aqueous...
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7101519 |
Zirconium basic carbonate and methods of making the same
Methods of making zirconium basic carbonate are further described which involve titrating an aqueous slurry of sodium zirconium carbonate to a pH of from about 3.5 to about 4.0 with an acidic agent...
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6994839 |
Carbonate recycling in a hydrogen producing reaction
A process for producing hydrogen gas from a reaction of an organic substance and a base with a recycling of a carbonate or bicarbonate by-product and a regeneration of the base. In one embodiment,...
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6919061 |
In-situ method for treating residual sodium
A unique process for deactivating residual sodium in Liquid Metal Fast Breeder Reactor (LMFBR) systems which uses humidified (but not saturated) carbon dioxide at ambient temperature and pressure...
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6916762 |
Catalyst for fluidized catalytic cracking of heavy hydrocarbon oil and method of fluidized catalytic cracking
An FCC catalyst which not only deactivates catalyst poison metals, such as nickel, vanadium and the like, in feedstock oils, inhibits the generation of hydrogen or coke, has excellent cracking...
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6913645 |
Cementitious material
A combination of compositions, products and methods of producing a new type of cement. The cementitious material is created by adding sodium carbonate (also known as soda ash, trona, natron, sodium...
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6835228 |
Process of recovering valuable metals from waste secondary batteries
A process of recovering metals from waste lithium ion/Ni—H/Ni—Cd batteries, wherein the waste batteries are calcined and sieved to generate an ash containing metals and metal oxides. The...
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6749825 |
Mesoporous carbonates and method of making
Mesoporous metal carbonate structures are formed by providing a solution containing a non-ionic surfactant and a calcium acetate salt, adding sufficient base to react with the acidic byproducts to...
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6689334 |
Process for reducing or avoiding foam production during chemical and physical materials conversion processes
The production of foam which occurs in many chemical and physical materials conversion processes can be avoided by performing the materials conversion process in an ascending jet reactor, including...
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6667021 |
Method for producing enhanced sodium carbonate crystals for making sodium bicarbonate
n the manufacture of sodium carbonate having increased CO 2 uptakes the carbonation reaction to form sodium bicarbonate is enhanced by the addition of particular amounts of a cationic quaternary...
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6652820 |
Methods of making cesium salts and other alkali metal salts
A method of making a cesium salt is described and involves reacting a cesium sulfate containing solution with lime to form 1) a solution containing at least cesium hydroxide and 2) a residue...
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6616907 |
Chemical preparation of chlorate salts
A novel method of producing metal chlorates is described which involves the reaction of ammonium chlorate with metal carbonates and/or metal bicarbonates. The reaction yields extremely pure metal...
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6589497 |
Process for preparing soda ash from solution mined bicarbonate brines
A method for producing high grade soda ash from a solution mined brine containing sodium bicarbonate by processing the mine brine through a monohydrate crystallization step to the final product is...
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6576206 |
Bicarbonate conversion in a carbonate monohydrate process
A method for converting sodium bicarbonate in a sodium carbonate monohydrate crystallization process to maintain a mother liquor composition in a sodium carbonate monohydrate crystallizer below the...
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6576209 |
Process for producing sodium salts
A process for producing sodium salts, which comprises adding solid sodium carbonate to a first aqueous solution containing sodium carbonate and sodium hydrogencarbonate, to prepare a second aqueous...
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6530961 |
Alkaline aqueous solutions and use thereof in processes for dyeing cellulosic textile materials
Described are aqueous solutions comprising sodium hydroxide and potassium carbonate in a molar ratio of 1:1.7 to 1:0.5, which are useful for preparing alkaline dyeing liquors, especially padding...
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6514475 |
Process for the production of sodium carbonate anhydrate
The invention is directed to a process for the production of sodium carbonate-anhydrate having a bulk density of at least 800 kg/m 3 , said process comprising: providing a suspension of solid...
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6436154 |
Use of dodecylbenzene sulfonic acid or salt as a scale inhibitor
The formation of scale on equipment surface in contact with sodium alkali containing brines is inhibited by the addition of an alkylbenzene sulfonic acid or salt thereof to the brines.
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6428759 |
Production of feed liquors for sodium carbonate crystallization processes
A process is disclosed for converting dilute brines of sodium carbonate and sodium bicarbonate to form feed solutions from which sodium based chemicals may be recovered. The sodium bicarbonate in a...
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6419887 |
Process for the treatment of residual liquors from the ammoniation and carbonation of alkali metal salts
A process for the treatment of residual liquors from the ammoniation and carbonation of alkali metal salts containing ammonium salts, sodium salts, soluble sodium bicarbonate, ammonium bicarbonate...
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6409982 |
Process for production of potassium carbonate sesquihydrate
This invention provides a process for the production of dry free-flowing potassium carbonate sesquihydrate. The process involves the controlled hydration of high purity anhydrous potassium...
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6399038 |
Process for making sodium carbonate
Process for producing sodium carbonate, according to which a sodium sesquicarbonate ore is successively calcined and dispersed in an aqueous solution substantially saturated with hydrated sodium...
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6352653 |
Acid component-removing agent, method for producing it and method for removing acid components
An acid component-removing agent which comprises sodium hydrogencarbonate having a volume-based mean particle diameter of from 1 to 9 μm as measured by a laser diffraction and scattering method.
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6334990 |
Formulation of potassium sulfate, sodium carbonate and sodium bicarbonate from potash brine
A process for the preparation of potassium sulfate, sodium bicarbonate and sodium carbonate. The process involves the treatment of potash brines by the reaction of sodium chloride and potassium...
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6322767 |
Process for making sodium carbonate decahydrate from sodium carbonate/bicarbonate liquors
A process for forming useful sodium salts by uniquely processing dilute brine solutions having sodium bicarbonate concentrations is disclosed. The dilute brine is reduced in sodium bicarbonate...
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6284005 |
Sodium carbonate recrystallization
The present invention provides a process for producing sodium carbonate monohydrate crystals by introduction of anhydrous sodium carbonate into a saturated sodium carbonate brine solution under...
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6270740 |
Method of producing modified sodium carbonate crystals for the production of sodium bicarbonate
An improved method of purifying sodium carbonate from a natural source whereby a dissolved sodium carbonate product is treated with a cationic compound, such as a quaternary amine, to react with...
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6251346 |
Solution mining of carbonate/bicarbonate deposits to produce soda ash
A solution mining process for recovering sodium values from an underground deposit of a sodium bicarbonate containing ore is disclosed. The process involves contacting the ore with an aqueous...
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6248817 |
Infrared absorber and agricultural film
An infrared absorber which comprises containing as an effective ingredient a hydroxide complex salt represented by the formula [Al 2 (Li (1-x).+M 2 + (x+y)(OH) (6+2y) ] n (A n -) (1+x).mH 2 O...
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6228335 |
Process for the production of sodium carbonate crystals
A process for the production of soda ash by withdrawing an aqueous mining solution containing dissolved sodium carbonate and at least about 1 wt % sodium bicarbonate from an underground alkali...
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6214059 |
Liquid alkali for reactive dyeing of textiles
A liquid alkali composition for use in fiber reactive dyeing of cotton and cotton blended fabrics or the like. The liquid alkali is a solution of sodium hydroxide, potassium hydroxide, and...
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6120745 |
Method for the oxidation of at least one alkali metal
Method for the oxidation of at least one alkali metal, according to which this alkali metal is subjected in molten condition to an oxidation by a reaction with oxygen, characterized in that the...
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6110621 |
Carbons for lithium batteries prepared using sepiolite as an inorganic template
A method of preparing an anode material using sepiolite clay having channel-like interstices in its lattice structure. Carbonaceous material is deposited in the channel-like interstices of the...
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6099817 |
Process for preparing sodium carbonate
A process for preparing sodium carbonate is provided in which sodium bicarbonate is heated to a temperature of between 80 and 250 ° C. and at a pressure between grater than 1 bar and 20 bars. The...
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6048507 |
Process for the purification of lithium carbonate
Disclosed are methods for preparing high purity lithium carbonate which can be used for pharmaceutical applications, electronic grade crystals of lithium or to prepare battery-grade lithium metal....
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6022516 |
Method of reducing the formation of scale in the production of soda ash from trona and nahcolite ores
The methods for decreasing scale formation in processes for the production of soda ash from trona or nahcolite ores are provided. Diphosphonic acid materials such as 1-hydroxy-ethylidene...
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6022385 |
Process for the manufacture of sodium carbonate crystals from minerals or solutions
A method of producing sodium carbonate crystals from a sodium carbonate-containing solution including the steps of passing the sodium carbonate-containing solution to a precipitator, adding...
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6010672 |
Process for producing sodium carbonate from trona ore
Disclosed is a process for the production of sodium carbonate monohydrate crystals from uncalcined trona ore. The process include contacting trona ore with a saturated sodium carbonate solution at...
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