| Patents for C01D 7 - Carbonates of sodium, potassium, or alkali metals in general (1,753) |
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| 08/05/1997 | US5654351 Contacting sodium sulfate in solution with carbon dioxide and a compound containing ammonia |
| 07/29/1997 | US5651465 Beneficiation of saline minerals |
| 07/22/1997 | US5650141 Translucent or transparent sticks |
| 07/08/1997 | US5645840 Ultrafine sodium bicarbonate powder |
| 06/25/1997 | EP0780130A1 Vapor sterilization using inorganic hydrogen peroxide complexes |
| 05/13/1997 | US5628990 Anhydrous cosmetic product containing deodorant and desiccant ingredients |
| 05/09/1997 | WO1997016377A1 Composition containing at least sodium bicarbonate, preparation method therefor and uses thereof |
| 05/07/1997 | EP0675854B1 Process and apparatus for drying and calcining sodium bicarbonate |
| 05/01/1997 | WO1997015334A1 Gas/vapor delivery from solid materials |
| 05/01/1997 | WO1997015333A1 Vapor sterilization using inorganic hydrogen peroxide complexes |
| 05/01/1997 | WO1997015270A1 Anhydrous cosmetic product containing deodorant and desiccant ingredients |
| 05/01/1997 | CA2465150A1 Method of hydrogen peroxide plasma sterilization |
| 05/01/1997 | CA2465067A1 Non-aqueous hydrogen peroxide complex |
| 04/29/1997 | US5624647 Method for recovery of alkali values from trona using two-stage leaching |
| 04/28/1997 | CA2188742A1 Vapor sterilization using inorganic hydrogen peroxide complexes |
| 04/08/1997 | US5618504 Method for recovery of alkali values from trona using sequential crystallization |
| 04/03/1997 | WO1997011907A1 Inorganic impurities removal in soda ash solutions with activated carbon |
| 03/20/1997 | WO1997009959A1 Bicarbonate salt-containing deodorant cosmetic stick product |
| 03/11/1997 | US5609838 Equilibrium production of sodium carbonate from sodium bicarbonate |
| 03/05/1997 | EP0638132A4 Process for recovering solid sodium bicarbonate from diaphragm cell. |
| 03/04/1997 | US5607548 Crystallizing out sodium carbonate |
| 02/19/1997 | CN1143046A united producing method for sodium carbonate and sodium hydroxide |
| 02/18/1997 | CA2081920C Liquid carbon dioxide injection in exothermic chemical reactions |
| 01/14/1997 | CA2032627C Process for producing sodium carbonate and ammonium sulphate from sodium sulphate |
| 01/09/1997 | WO1997000829A1 Method for production of sodium bicarbonate, sodium carbonate and ammonium sulfate from sodium sulfate |
| 12/31/1996 | US5588713 Process for making sodium bicarbonate from Nahcolite-rich solutions |
| 12/31/1996 | US5588556 Method for generating gas to deliver liquid from a container |
| 12/18/1996 | EP0748252A1 Gas delivery apparatus and compositions for infusion |
| 11/13/1996 | EP0742175A2 Process for production of dense soda ash from soda ash fines |
| 10/24/1996 | WO1996033009A1 Process and device for producing granulates by fluidised bed spray granulation |
| 10/24/1996 | CA2217193A1 Process and device for producing granulates by fluidised bed spray granulation |
| 10/23/1996 | EP0738776A1 Colloidal alkali or alkaline-earth metal carbonates containing a calcium phosphorous and sulphur compound in micellar form |
| 10/22/1996 | US5567474 Process for producing alkali metal dispersions |
| 10/08/1996 | US5562890 Production of alkali metal carbonates |
| 09/03/1996 | US5552084 Magnesium carbonate coating |
| 08/28/1996 | EP0728864A2 Zero discharge pulp mill cascading water management |
| 08/27/1996 | US5549788 Minimal effluents discharge pulp mill with chemical recovery |
| 08/22/1996 | WO1996025360A1 Method for preparing a salt, particularly potassium chloride, by leaching and cooling a solution thereof |
| 08/14/1996 | EP0726229A1 Production of alkali metal bicarbonates and carbonates |
| 08/14/1996 | DE19504554A1 Prodn. of pharmaceutical quality potassium carbonate in continuous crystallisation process |
| 07/25/1996 | WO1996022398A1 Method for purification of saline minerals |
| 07/10/1996 | CN1032267C Disposal of insal tailings from soda ash manufacturing by slurrying and pumping into underground |
| 07/03/1996 | EP0719359A1 Minimum adverse environmental impact pulp mill |
| 06/26/1996 | CN1032129C Liquid carbon dioxide injection in exothermic chemical reactions |
| 06/12/1996 | CN1124503A Process for producing sodium salts from brines of sodium ores |
| 05/22/1996 | CN1122771A Improvement of steam calcining furnace and auxiliary equipment thereof |
| 05/21/1996 | US5518727 Ultrafine sodium bicarbonate powder |
| 05/21/1996 | US5518583 Minimizing effluents from a cellulose pulp mill |
| 05/15/1996 | DE19514187C1 Verfahren und Vorrichtung zur Herstellung von Granulaten durch Wirbelschicht-Sprühgranulation Method and apparatus for the production of granules by fluidized bed spray granulation |
| 05/15/1996 | CN1122591A Large potassium bicarbonate crystals and process for the preparation thereof |
| 04/30/1996 | US5512071 Sodium bicarbonate abrasive particles used to strip contaminants from solid surfaces; pollution control |
| 03/13/1996 | CN1118333A Process for extracting soluble non-sulfur potassium salt from feldspar |
| 03/06/1996 | CN1031183C Method for preparation of sodium bicarbonate |
| 02/28/1996 | CN1031152C Soda ash production |
| 02/21/1996 | EP0697011A1 Large potassium bicarbonate crystals and process for the preparation thereof |
| 02/07/1996 | CN1116184A Solid phase hydration method for producing low salt heavy quality pure alkali |
| 02/07/1996 | CN1116183A Hydrotropic making halogen technology by separating salt and alkali in lake |
| 01/10/1996 | CN1114636A Process for preparation of soda ash by using bittern method |
| 12/27/1995 | CN1113885A Producing method for caustic soda |
| 12/21/1995 | WO1995034507A1 A process for producing soda ash by an ammonia method |
| 12/20/1995 | EP0687323A1 Zero discharge mill distillation, salt recovery, and water management |
| 12/06/1995 | CN1030445C Process for decomposition of aqueous ammonium chloride solution and process for production of sodium carbonate |
| 11/30/1995 | WO1995032040A1 Process for the manufacture of sodium carbonate, sodium bicarbonate and/or sesquicarbonate |
| 11/28/1995 | US5470554 Benefication of saline minerals |
| 11/23/1995 | WO1995031400A1 Process for producing alkaline carbonate |
| 11/22/1995 | EP0522068B1 Liquid carbon dioxide injection in exothermic chemical reactions |
| 11/22/1995 | CN1112088A Process for producing sodium carbonate by circulating method |
| 11/08/1995 | CN1111214A Catalytic one-stage produced heavy soda ash and fixed steam decomposition reaction furnace device |
| 10/11/1995 | EP0675854A1 Process and apparatus for drying and calcining sodium bicarbonate. |
| 09/20/1995 | CN1108615A Method for production of refined white alkali |
| 09/20/1995 | CN1108614A Combination method for production of potassium sulfate |
| 09/12/1995 | US5449506 From potassium chloride and ammonium carbonate, countercurrent ion exchange |
| 09/08/1995 | WO1995023641A1 Gas delivery apparatus and compositions for infusion |
| 09/08/1995 | CA2184168A1 Gas delivery apparatus and compositions for infusion |
| 08/30/1995 | EP0652809A4 Process for manufacturing and coating sodium carbonate perhydrate to be stable in detergent formulations. |
| 08/29/1995 | US5445805 Large potassium bicarbonate crystals and process for the preparation thereof |
| 08/15/1995 | US5441669 Preventing potassium bicarbonate from caking |
| 08/09/1995 | CN1106358A Method for extracting li salt from bittern |
| 07/26/1995 | EP0663971A1 Process for dividing the sulphide content of the green liquor for the production of white liquors having high and low sulphidity respectively |
| 07/12/1995 | CN1029306C Method for removing ferrous in mother liquid of ammonia-soda process production by iron rust adsorption |
| 06/28/1995 | CN1029112C Method for extracting alkali metal chemical compound from lepidolite concentrate |
| 06/06/1995 | US5422087 Reducing residual hygroscopic alkali metal carbonate with acidic anhdyrous boron oxide or phosphorus pentaoxide forming corresponding bicarbonates; |
| 05/17/1995 | EP0652809A1 Process for manufacturing and coating sodium carbonate perhydrate to be stable in detergent formulations |
| 05/02/1995 | US5411750 Having specified particle size, surface area and bulk density |
| 03/21/1995 | US5398850 Gas delivery apparatus for infusion |
| 03/21/1995 | CA1334821C Method of reforming soluble salts to effect purification and increase crystal size thereof |
| 03/14/1995 | US5396863 Installation and process for the crystallization of an inorganic substance and process and installation for the crystallization of sodium carbonate monohydrate |
| 03/09/1995 | WO1995006775A1 Minimum adverse environmental impact pulp mill |
| 03/09/1995 | CA2170594A1 Minimum adverse environmental impact pulp mill |
| 03/08/1995 | CN1099724A Pure natural plant alkaloid and preparing method |
| 03/01/1995 | CN1027750C Method and apparatus for preparation of sodium bicarbonate |
| 02/15/1995 | EP0638132A1 Process for recovering solid sodium bicarbonate from diaphragm cell |
| 01/18/1995 | EP0634754A1 Molten salt destruction of alkali and alkaline earth metals |
| 01/14/1995 | CA2124915A1 Molten salt destruction of alkali and alkaline earth metals |
| 12/08/1994 | WO1994027725A1 Beneficiation of saline minerals |
| 11/24/1994 | WO1994026664A1 Large potassium bicarbonate crystals and process for the preparation thereof |
| 11/01/1994 | US5360600 Treatment of mineral and alkali metal carbonate slurries |
| 10/13/1994 | WO1994023074A1 Process for producing sodium salts from brines of sodium ores |
| 09/22/1994 | DE4308250A1 Sorption of CO2 by CaCl2 from the Solvay soda process |
| 09/21/1994 | CN1092379A Process and apparatus for the preparation of potash |