| Patents for C01D 3 - Halides of sodium, potassium, or alkali metals in general (3,310) |
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| 10/12/2000 | WO2000059828A1 Non-caking sodium chloride crystals, a process to make them, and their use in an electrolysis process |
| 10/11/2000 | CN1269767A Treatment of molten salt reprocessing wastes |
| 10/05/2000 | WO2000058532A1 Stabilized bromine solutions, method of manufacture and uses thereof for biofouling control |
| 10/05/2000 | WO2000058215A1 Method for activating mineral fluoride in an organic medium |
| 10/05/2000 | CA2366448A1 Method for activating mineral fluoride in an organic medium |
| 09/27/2000 | CN1056779C Method of continuously self-cooling crystallization |
| 09/20/2000 | EP1036765A1 Salt making apparatus |
| 08/22/2000 | US6106794 Salt formation from sodium hydroxide solution and anhydrous hydrogen fluoride |
| 08/17/2000 | DE19904680A1 Process and unit for recovering salt useful for strewing on roads from waste salt, e.g. from food or fish industry, has a vessel in which waste salt is mixed and treated with an oxidant |
| 08/15/2000 | US6103092 Method for reducing metal ion concentration in brine solution |
| 08/10/2000 | DE19902395A1 Verfahren zur Verengung des Kornspektrums von Kalium- und Natriumchloridkristallisaten zur Verbesserung der Rieseleigenschaften Method for narrowing the particle spectrum of potassium and Natriumchloridkristallisaten to improve the flow properties |
| 08/02/2000 | CN1261601A Process for producing potassium chloride from alkaline slag and potassium feldspar |
| 07/26/2000 | EP1022252A2 Process for reducing the particle size distribution of potassium and sodium chloride crystals for improving their flow properties |
| 07/19/2000 | EP1019322A1 Treatment of molten salt reprocessing wastes |
| 07/19/2000 | CN1260323A Method and apparatus for producing potassium chloride from carnallite |
| 07/19/2000 | CN1260234A Manufacture of stainless steel for equipment of potassium chloride (food grade) and its series products |
| 07/18/2000 | CA2203510C Co-production of potassium sulfate, sodium sulfate and sodium chloride |
| 07/12/2000 | CN1259486A Method of extracting potassium chloride from mixed ore of sylvine and carnallite |
| 07/05/2000 | CN1259106A Method for enriching raw salt |
| 06/27/2000 | CA2174713C Removal of trace metal and metalloid species from brine |
| 06/14/2000 | EP1008554A1 Cylindrical pastille of agglomerated salt |
| 06/06/2000 | CA2188723C Thermally-driven ion-exchange process for lithium recovery |
| 05/24/2000 | CN1052705C Process for producing potassium chloride from carnallite |
| 05/11/2000 | WO2000026140A1 Method for making an aqueous sodium chloride solution |
| 05/10/2000 | CN1252383A Sea water extract |
| 05/04/2000 | WO2000024674A1 Method for reducing metal ion concentration in brine solution |
| 05/04/2000 | WO1999014160A8 Treatment of molten salt reprocessing wastes |
| 04/27/2000 | DE19848731A1 Verfahren zur Reinigung von Solen, wobei Magnesium und Calcium als Mg(OH)2 und CaCO3 gefällt und von der Sole abgetrennt werden Methods for cleaning soles, with magnesium and calcium as Mg (OH) 2 and CaCO3 precipitated and separated from the brine |
| 04/26/2000 | EP0995719A1 Process for the purification of brines under separation of magnesium and calcium as magnesium hydroxide and calcium carbonate |
| 04/26/2000 | EP0951372A4 Strengthened metal halide particles and improved lamp fill material and method therefor |
| 04/13/2000 | WO2000020074A1 A method of treatment of halogenous, organic waste material |
| 04/12/2000 | CN2373435Y Sesqui-alkali evaporimeter |
| 04/12/2000 | CN1250026A Wet sieving process to separate mixed salt to prepare monohydrated magnesium sulfate and sodium chloride |
| 04/05/2000 | EP0827487B1 Method for preparing a salt, particularly potassium chloride, by leaching and cooling a solution thereof |
| 03/29/2000 | CN1248963A Method for minimizing hydrogen halide corrosion in a partial oxidation process |
| 03/29/2000 | CN1248549A Process for preparing high-quality potassium-containing products by salt-field method |
| 03/29/2000 | CN1050866C Process for separating sulphate in mother solution of electrolytic producing chlorate and process for producing sodium chlorate |
| 03/22/2000 | EP0987221A1 Method of purification of salt solutions for electrolysis |
| 03/22/2000 | EP0907613B1 Method for producing an industrial aqueous sodium chloride solution |
| 03/22/2000 | EP0866768B1 Process for preparing siliceous alkali salt solutions |
| 03/22/2000 | CN2369993Y Folding and spreading machine for plastic manta in salt field |
| 03/22/2000 | CN1248227A Method and apparatus for desalinating sea water, natural salt and fresh water |
| 03/15/2000 | EP0985637A1 Method and apparatus for desalinating sea water, natural salt and fresh water |
| 03/15/2000 | CN1050341C Improved method for nacl in prodn. of protein hydrochloric acid hydrolyzate |
| 03/09/2000 | WO2000012433A1 Method for producing sodium chloride crystals |
| 03/09/2000 | CA2341569A1 Method for producing sodium chloride crystals |
| 02/22/2000 | US6027607 Portion of brine is heated outside the evaporation basin and is returned to the basin; a control unit measures and evaluates climatic values and sprays a portion of the heated brin on the evaporation basin based on the values |
| 02/17/2000 | WO2000007939A1 Salt making apparatus |
| 02/08/2000 | US6022080 Process and system for the solution mining of evaporites and preparation of saline solutions |
| 02/03/2000 | DE19834833A1 Economical production of sodium fluoride from sodium lye and hydrogen fluoride or hydrofluoric acid, especially using relatively dilute reagents |
| 02/03/2000 | DE19834832A1 Economical production of sodium fluoride from sodium lye and hydrogen fluoride at relatively low temperatures |
| 02/02/2000 | CN1048958C Preparation of large crystal high-purity potassium chloride by halogen method to remove Na and isolate K |
| 01/26/2000 | EP0973692A1 Method for enriching raw salt |
| 01/20/2000 | WO2000002815A2 Method for reducing the bromide content in an aqueous bromide-containing solution using hydrogen peroxide |
| 01/20/2000 | CA2336698A1 Method for reducing the bromide content in an aqueous bromide-containing solution using hydrogen peroxide |
| 01/13/2000 | DE19830310A1 Verfahren zur Abreicherung des Bromidgehaltes aus einer wäßrigen Bromid enthaltenden Lösung unter Verwendung von Wasserstoffperoxid A method of reducing the bromide from a bromide-containing aqueous solution using hydrogen peroxide |
| 01/12/2000 | EP0854840B1 Salt extraction process and device |
| 01/05/2000 | CN1048002C Method for synthesizing high-purity sodium iodide by using iodine and sodium carbonate |
| 12/22/1999 | CN2354924Y Small size salt collecting apparatus |
| 12/14/1999 | CA2133702C Process for controlling sulfate ions in saline solutions |
| 12/04/1999 | CA2273187A1 Method of dehydration of chlorides |
| 11/30/1999 | US5993772 Method for coproducing calcium carbonate and sodium hydroxide |
| 11/24/1999 | EP0959043A1 Process for treating a sodium chloride solution contaminated with sulphate, especially an anolyte brine |
| 11/16/1999 | US5984981 Salt making method and apparatus |
| 11/16/1999 | CA2163480C Nanofiltration of concentrated aqueous salt solutions |
| 11/16/1999 | CA2070856C Process for the purification of an aqueous solution of an alcaline metal chloride by the removal of ammonium nd iodide |
| 11/03/1999 | CN2346773Y Seawater desalting appts. |
| 10/27/1999 | EP0951372A1 Strengthened metal halide particles and improved lamp fill material and method therefor |
| 10/27/1999 | CN1232786A Technological process of preparing potassium sulfate with chromium containing sodium sulfate |
| 10/26/1999 | US5972442 Used as vaporizable metal halide fill in discharge lamps |
| 10/20/1999 | EP0950041A1 Method for minimizing hydrogen halide corrosion in a partial oxidation process |
| 10/14/1999 | WO1999051523A1 Process for removal of quaternary ammonium salt |
| 10/12/1999 | CA2099184C Process for the purification of an aqueous solution of an alkaline metal chloride to remove iodine contained herewith |
| 09/29/1999 | CN1045319C Method for preparing sodium hydroxide by brine electrolysis |
| 08/19/1999 | DE19805859A1 Aqueous alkali formulation used in dyeing cellulose textiles by impregnation and fixing |
| 08/10/1999 | US5935546 Method for removing traces of heavy metals from concentrated alkali metal chloride solutions down into the range of 0.01 ppm |
| 08/10/1999 | US5935496 Compacting fine crystals in a roll type briquetting press or block press mold box |
| 07/28/1999 | CN1223964A Process for producing potassium sulfate |
| 07/14/1999 | CN1044108C Method for preparing potassium sulfate with sulfate-type bittern |
| 06/30/1999 | EP0925833A1 Process and device for brine production for a water softening installation |
| 06/08/1999 | US5910294 Ozone depleting nitrogen difluoride removed from gas in form of metal halides, carbon dioxide and nitrogen gas |
| 06/01/1999 | US5908879 Coated metal fluoride particles and a dental composition containing coated metal fluoride particles |
| 05/18/1999 | CA2144219C Method and device for continuous determination of the sylvite saturation of hot solutions for monitoring and control of the hot dissolving of a crude potassium salt |
| 05/05/1999 | CN1043214C Production of alkali metal carbonates |
| 04/27/1999 | CA2172275C Process for production of acidified process streams |
| 04/21/1999 | EP0909600A1 Plant for producing pressure die-cast or injection moulded articles using salt cores |
| 04/21/1999 | EP0909574A1 Method and plant for producing salt grains having a given particle size |
| 04/14/1999 | EP0907613A1 Method for producing an industrial aqueous sodium chloride solution |
| 04/14/1999 | EP0802883B1 Method for coproducing calcium carbonate and sodium hydroxide |
| 03/25/1999 | WO1999014160A1 Treatment of molten salt reprocessing wastes |
| 03/10/1999 | EP0687323B1 Zero discharge mill distillation, salt recovery, and water management |
| 03/03/1999 | EP0899000A1 Process for cleaning smoke and fabricating an aqueous solution of sodium chloride |
| 01/26/1999 | CA2148771C Process and device for non-agitated flotation of substances with a low degree of hydrophoby and/or low stability in the foam structure, in particular of salt mixtures |
| 01/26/1999 | CA2029689C Purification of chlor-alkali membrane cell brine |
| 01/19/1999 | CA2006611C Process for the reduction of perchlorate in electrolytes used for the production of chlorate |
| 01/13/1999 | CN1204621A Technology and device for producing granular lithium chloride |
| 01/12/1999 | US5858240 Nanofiltration of concentrated aqueous salt solutions |
| 01/06/1999 | CN1041510C Process and unit for separating sulfate from sodium chloride in high temp. salt |
| 12/23/1998 | CN1202872A Salt extraction process and device |
| 12/09/1998 | EP0719359B1 Minimum adverse environmental impact pulp mill |