| Patents for C01D 3 - Halides of sodium, potassium, or alkali metals in general (3,310) |
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| 12/15/1992 | US5171555 Doped with monovalent ioside of rubium, cesium or silver; polycrystalline, improved fracture strength and transparency |
| 12/09/1992 | CN1066830A Purifying method for high pure sodium iodide |
| 12/08/1992 | US5169406 Method and a device for preparing brine |
| 12/02/1992 | CN1019290B Process for preparation of aqueous solution of sodium chloride |
| 12/01/1992 | US5167939 Process for removing calcium and magnesium ions from an aqueous alkali chloride solution for use in membrane electrolysis |
| 11/24/1992 | CA1310610C Installation for conditioning and triboelectrically charging fine-grained mixtures of salts |
| 11/18/1992 | CN1019095B Method for removing ions of calcium and sulfuric acid radical from common salt brine and bittern |
| 10/15/1992 | DE4112108A1 Recycling harmful residue from barium sulphide, lithopone and blanc fixe mfr. - by lixiviation with soda under pressure then hydrochloric acid at atmos. pressure |
| 10/14/1992 | CN1018626B Improvements in industrial salt production |
| 10/13/1992 | US5154909 Broken spheres of nonuniform size |
| 10/13/1992 | CA1308822C Selective removal of nitrate ions from salt solutions |
| 10/07/1992 | CN1065053A Low energy-consumption production method of refined potassium chloride |
| 09/29/1992 | CA1308034C Dechlorination of aqueous alkali metal chloride solution |
| 09/08/1992 | US5145656 Brine treatment |
| 09/08/1992 | US5145515 Passing acidified constituents through conduit packed with metal higher in electromotive series than copper |
| 09/02/1992 | EP0500648A1 Evaporation and condensation apparatus. |
| 08/19/1992 | EP0498919A1 Purification of chlor-alkali membrane cell brine |
| 08/19/1992 | CN1063737A Recovery method for salt crytallizing pool cover film |
| 08/19/1992 | CN1063663A Potassium chloride preparing by chloride type patassium brine |
| 08/18/1992 | CA1306340C Stabilization of solid sodium chloride against mushing in an aqueous medium |
| 08/12/1992 | EP0497880A1 Plate evaporator. |
| 08/04/1992 | US5136046 Preparation of amine alanes |
| 08/04/1992 | US5135734 Process for removing a residue containing sodium sulphate |
| 07/22/1992 | CN2110512U Charging machine for thickening salt pulp |
| 07/15/1992 | CN1062670A Fluoride produced method by powder containing ferric oxide, iron hydroxide purifying waste gas containing fluorine |
| 07/15/1992 | CN1017416B Purification method of sodium sulphate type bittern |
| 07/09/1992 | WO1992011336A1 Salt additive composition for inhibiting formation of yellow brine |
| 07/02/1992 | DE4142919A1 Drying of salts for fire extinguisher powder production |
| 07/01/1992 | EP0492727A1 Process for the preparation of sodium chloride |
| 06/30/1992 | US5126019 Refrigeration, crystallization to remove sodium sulfate from depleted brine before regeneration |
| 06/24/1992 | CN1062123A Bittern high production technology from sea water in the sun |
| 06/20/1992 | CA2035186A1 Salt additive composition for inhibiting formation of yellow brine |
| 06/16/1992 | US5122233 Apparatus for the treatment of mixture of brines and contaminated mineral salts |
| 06/03/1992 | EP0488251A1 Process for removing chlorate salt from aqueous alkali chloride solution |
| 06/03/1992 | EP0488199A1 Process for granulating potassium salts |
| 05/29/1992 | CA2056243A1 Process for removing chlorate salt from aqueous alkali chloride solution |
| 05/28/1992 | CA2056240A1 Process for granulating potassium salts |
| 05/27/1992 | CN2105486U Sodium hypochlorite generator |
| 05/27/1992 | CN1061390A Method for separating salt from naturally occurring salt |
| 05/20/1992 | CN1061200A Seawater extract |
| 05/19/1992 | US5114475 Method for the preparation of a fine-grained mixture having hydrophobic properties |
| 05/13/1992 | EP0484729A1 Method for separating salt from naturally occuring salt |
| 05/08/1992 | CA2053932A1 Method for separating salt from naturally occurring salt |
| 05/06/1992 | EP0484112A2 Use of lithium in the treatment or prophylaxis of Molluscum contagiosum |
| 05/05/1992 | US5110531 Process and apparatus for casting multiple silicon wafer articles |
| 05/01/1992 | CA2052246A1 Lithium treatment |
| 04/30/1992 | WO1992006922A1 Plant for preparing a saline solution |
| 04/29/1992 | CN1060637A Sodium bromide extracting method |
| 04/28/1992 | US5108726 Compacts of spray dried water soluble compounds |
| 04/28/1992 | CA1299520C Magnetic separation of clay and other water insoluble materials from potash ores |
| 04/21/1992 | US5106605 Color restored radiation discolored salt compositons and methods for color restoration |
| 04/14/1992 | US5104500 Controlling amount of calcium removed from mother liquor before recycling using chelating ion exchange |
| 03/18/1992 | CN2099121U Equipment for production of sea salt |
| 03/18/1992 | CA2051475A1 Production of potassium chloride crystals |
| 03/03/1992 | US5093089 From chromium species, acidification, crystallization |
| 02/19/1992 | CN2096603U Plastic tarpaulin synchronous retracting machine |
| 02/19/1992 | CN2096558U Plastic vierendeel floating plate of perennial crystal plastic covering pool for producing salt |
| 02/19/1992 | CN2096557U Grey screen for dry salt of saltern |
| 02/12/1992 | EP0470940A2 A method and a device for preparing brine |
| 02/12/1992 | EP0470662A1 Process for the fine purification of an aqueous sodium chloride solution for membrane electrolysis |
| 02/04/1992 | US5085670 Enhancing crystal size with monoalkylated diphenyl ether sulfonic acid or salt |
| 01/29/1992 | CN1058240A Process for separation of sulphate |
| 01/21/1992 | US5082492 Brines |
| 12/25/1991 | CN1015164B Process for prodn. of magnesium sulphate, sodium chloride and potassium chloride |
| 12/10/1991 | US5071563 Adsorption onto slurry of zirconium hydrous oxide powder |
| 12/03/1991 | US5069884 Stepwise oxidation with active chlorine to nitrogen and iodine |
| 11/27/1991 | EP0458403A2 Process for producing sodium chloride crystals |
| 11/26/1991 | US5068092 Salting out; regeneration of exhausted brines by solar evaporation |
| 11/19/1991 | US5066404 Purification using titania hydrate |
| 11/13/1991 | CN1014695B Process for producing safety powder by zinc method and method for recovering sodium sulfite and common salt from waste liguor |
| 11/05/1991 | US5063041 Evaporation |
| 10/17/1991 | WO1991015430A1 Extraction of total, natural, biological sea salt by complete evaporation of seawater, with simultaneous production of salt-free water |
| 10/15/1991 | US5057208 Froth flotation, conditioning with n-alkyl amine |
| 10/02/1991 | CN1054970A Halogen exchange fluorination |
| 09/21/1991 | WO1991014666A1 Halogen exchange fluorination |
| 09/21/1991 | CA2077911A1 Halogen exchange fluorination |
| 09/03/1991 | CA1288212C Process for the recovery of ammonia and fluoride values from ammonium fluoride solutions |
| 08/14/1991 | EP0441456A2 Removal of potassium chloride from solvents |
| 07/31/1991 | CN1053413A Process and apparatus for treadment of brines and contaminated mineral salts or mixtures thereof |
| 07/17/1991 | CN1053045A Method for removing magnesium from sodium chloride solution |
| 07/16/1991 | US5032371 Dehydration |
| 07/09/1991 | US5030364 Chlorine ion and sodium or iron ion, capable of forming sodium chloride having oblate tetrahedral crystal form |
| 07/02/1991 | US5028302 Purification of chlor-alkali membrane cell brine |
| 06/26/1991 | EP0434222A1 Ultra high purity metal fluorides and their preparation |
| 06/11/1991 | US5023803 Process to control the addition of carbonate to electrolytic cell brine systems |
| 06/11/1991 | CA1284844C Brine treatment using ethylene/carboxylic acid polymers |
| 06/05/1991 | CN1051898A Manufacturing method for refined natural salt |
| 06/04/1991 | US5021079 Flat tetrahedronal with iron chloride, preservative for cut flowers |
| 05/23/1991 | DE4102004A1 Reacting gas with molten material in narrow space - round lower end of axial gas feeder with enlarged internal buffer space |
| 05/22/1991 | EP0427972A1 Purification of chlor-alkali membrane cell brine |
| 05/16/1991 | WO1991006818A1 Plate evaporator |
| 05/16/1991 | WO1991006817A1 Evaporation and condensation apparatus |
| 05/15/1991 | EP0427256A1 Method for removing sulfate ions from aqueous solution of alkali metal chloride |
| 05/08/1991 | CN1012567B Process for recovery of ammonia and potassium fluoride from ammonium fluoride solution |
| 05/07/1991 | CA1283984C Removal of metals from solutions |
| 05/02/1991 | EP0424667A2 A salt restored from discoloration and a method for this restoration |
| 04/17/1991 | EP0422753A1 Process for preparing a particular mixture having hydrophobic properties |
| 04/14/1991 | CA2027654A1 Method for the preparation of a fine-grained mixture having hydrophobic properties |
| 03/05/1991 | US4997637 Digestive crystallizing process and apparatus for purification of KC1 |
| 02/19/1991 | US4994252 Removal of potassium chloride from solvents |