Did You Know...
...that Charles Goodyear performed some of his experiments on rubber while in debtor's prison? He was there so often he referred to it as his "hotel". Chronically in debt because of poor business sense and ill health, Goodyear depended on the generosity of friends and family. Even after he unlocked the secret to vulcanizing rubber, he was unable to improve his financial situation. When he died, his estate was $200,000 in debt.
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| Number | Title | Issue Date |
| 8128899 | Process and apparatus for utilizing oxygen-containing polymers A process is described for converting and utilizing oxygen-containing polymers to form hydrogen and alkali metal carbonates, in which the polymers are brought into intimate contact with a melt mixture of alkali metal hydroxide and alkali metal carbonate to form hydr... | 03/06/2012 |
| 8119091 | Carbon dioxide capture A method of carbon dioxide capture is disclosed. In a step (a) anhydrous sodium carbonate is separated from a first aqueous solution formed by reacting carbon dioxide and an aqueous solution of sodium hydroxide. In step (b) the anhydrous sodium carbonate is treated ... | 02/21/2012 |
| 7708972 | Method for obtaining sodium carbonate crystals Method for producing sodium carbonate, according to which an aqueous sodium chloride solution (5) is electrolyzed in a membrane-type cell (1) from which an aqueous sodium hydroxide solution (9) is collected, and carbonated by direct contact with... | 05/04/2010 |
| 7638109 | Production of sodium sesquicarbonate and sodium carbonate monohydrate A process for the production and recovery of crystalline sodium sesquicarbonate and of crystalline sodium carbonate monohydrate from aqueous liquors containing sodium carbonate and sodium bicarbonate. The crystalline products may optionally be heated or calcined to ... | 12/29/2009 |
| 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 object to be calcined of from 100 to 500° C., while introducing a d... | 04/07/2009 |
| 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 solution of bicarb and sodium carbonate) at a temperature of at least 25... | 08/12/2008 |
| 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 alkali metal is reacted with liquid water or water vapor, so as to obtai... | 03/18/2008 |
| 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 the ore or other material to form a reaction product that includes t... | 01/29/2008 |
| 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 disclosed. The process entails utilizing the waste-water effluent stream fr... | 08/14/2007 |
| 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 temperature TG in the range from 45 to 75° C., and the coating is... | 07/10/2007 |
| 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 the metal carbonate: introducing carbon dioxide gas to form a correspon... | 05/08/2007 |
| 7189479 | Phototool coating A phototool having a fluorinated phosph(on)ate coating and methods of using the phototool. ... | 03/13/2007 |
| 7171814 | Method and apparatus for carbon dioxide accelerated unit cooldown A system and a method of its use for the accelerated cooldown of at least one unit by injecting liquid carbon dioxide via a sparger into a pipeline connected to the unit via an access valve upstream of the unit being cooled. By providing an evenly distributed flow i... | 02/06/2007 |
| 7157065 | Production of lithium compounds directly from lithium containing brines A continuous process for directly preparing high purity lithium carbonate from lithium containing brines by preparing a brine containing about 6.0 wt % lithium and further containing other ions naturally occurring in brines; adding mother liquor containing carbonate... | 01/02/2007 |
| 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 has a specific surface area of at least 0.3 m2/g, and to t... | 12/12/2006 |
| 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 solution of bicarb and sodium carbonate) at a temperature of at least 25... | 10/31/2006 |
| 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 wherein the sodium zirconium carbonate has a moisture content of fro... | 09/05/2006 |
| 7051537 | Method and apparatus for carbon dioxide accelerated reactor cooldown A system and a method of its use for the accelerated cooldown of at least one reactor by injecting liquid carbon dioxide via a sparger into a pipeline connected to the reactor via a access valve upstream of the reactor. By providing an evenly distributed flow into t... | 05/30/2006 |
| 7045104 | Volume reduction of aqueous waste by evaporative crystallization of burkeite and sodium salts A method of treating aqueous salt solutions to provide a solution suitable for vitrification to a stable glass matrix for long term storage is described. In particular, salt solutions composed of aqueous nuclear waste materials are suitable for treatment by the desc... | 05/16/2006 |
| 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, reaction of an organic substance and a base produces hydrogen gas and... | 02/07/2006 |
| 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 to convert residual sodium into solid sodium bicarbonate. ... | 07/19/2005 |
| 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 activity and bottom oil-treating ability, and can yield a gasoline and LC... | 07/12/2005 |
| 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 carbonate decahydrate, sodium carbonate anhydrous, etc.) and one or ... | 07/05/2005 |
| 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 process includes subjecting the ash to a first dissolution etching treatmen... | 12/28/2004 |
| 6787120 | Volume reduction of aqueous waste by evaporative crystallization of burkeite and sodium salts A method of treating aqueous salt solutions to provide a solution suitable for vitrification to a stable glass matrix for long term storage is described. In particular, salt solutions composed of aqueous nuclear waste materials are suitable for treatment by the desc... | 09/07/2004 |
| 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 be formed by the addition of carbon dioxide, and adding carbon dioxid... | 06/15/2004 |
| 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 a baffle-free container with a tapering lower section, pr... | 02/10/2004 |
| 6667021 | Method for producing enhanced sodium carbonate crystals for making sodium bicarbonate n the manufacture of sodium carbonate having increased CO2 uptakes the carbonation reaction to form sodium bicarbonate is enhanced by the addition of particular amounts of a cationic quaternary amine, selected from the family of dialkylethoxyla... | 12/23/2003 |
| 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 comprising calcium sulfate. The method further involves removing... | 11/25/2003 |
| 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 chlorate, as well as ammonia and carbon dioxide by-products... | 09/09/2003 |
| 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 described. The mine brine is treated to decompose and ther... | 07/08/2003 |
| 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 invariant point for the crystallizer for reducing or elim... | 06/10/2003 |
| 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 solution, precipitating, separating and recovering from t... | 06/10/2003 |
| 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 liquors, of fiber-reactive dyes for producing dyeings on cel... | 03/11/2003 |
| 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/m3, said process comprising: providing a suspension of solid sodium carbonate and/or solid sodium bicarbonate and/o... | 02/04/2003 |
| 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.... | 08/20/2002 |
| 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 dilute brine is neutralized and the brine then fortified ... | 08/06/2002 |
| 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 and water and producing purified ammonium salts, comprisin... | 07/16/2002 |
| 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 carbonate. The product of the process has at least about 90 percen... | 06/25/2002 |
| 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 carbonate and the resulting aqueous suspension is subjected ... | 06/04/2002 |
