Patents for C01D 3 - Halides of sodium, potassium, or alkali metals in general (3,310) |
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11/18/1980 | CA1089797A1 Fibrous electrolytic bed for the recovery of mercury and other heavy metal ions |
11/18/1980 | CA1089626A1 Non-pollutant process for the manufacture of neutral calcium hypochlorite |
10/16/1980 | WO1980002116A1 Disposal of pcb |
09/23/1980 | US4224290 Process for recycling chemical plant waste streams containing recoverable chlorine |
08/19/1980 | CA1083780A1 Brine purification process |
08/05/1980 | US4216191 Method of preparing inorganic-alkali metal salts |
07/29/1980 | US4215009 Purification method |
07/23/1980 | EP0013309A1 Electrolysis of aqueous solution of potassium chloride |
07/01/1980 | US4210626 Manufacture of magnesium carbonate and calcium sulphate from brine mud |
07/01/1980 | US4210421 Method for reducing kcl tailings loss from evaporation |
06/17/1980 | US4208258 Method for the recovery of mercury and other heavy metal ions from a liquid stream |
06/10/1980 | US4207152 Adhesion |
05/27/1980 | CA1078138A1 Production of chlorine dioxide |
05/13/1980 | US4202743 Electrolysis of aqueous solution of sodium chloride |
05/13/1980 | CA1077435A1 Chlorine-based bleachery effluent treatment |
04/29/1980 | CA1076517A1 Process for the purification of electrolysis brine |
04/16/1980 | EP0009506A1 Process for producing table salt |
04/15/1980 | US4198288 Froth flotation using polygalactomannan and a polyamide |
04/01/1980 | CA1074528A1 Manufacture of magnesium carbonate and calcium sulphate |
03/11/1980 | US4192756 Lignosulfonates |
02/19/1980 | CA1071842A1 Process for producing salt having a reduced calcium sulfate content |
02/19/1980 | CA1071841A2 Process for modifying the appearance of crystalline sodium chloride |
01/29/1980 | CA1070457A1 Removal of sodium chloride from pulp mill operations |
01/01/1980 | CA1069083A Gaseous preconditioner for electrostatic separation of potassium salts |
12/25/1979 | US4180547 Process for recovery of chemicals from saline water |
12/12/1979 | EP0005859A1 Process for reducing metal ion content of aqueous solutions |
11/27/1979 | US4176168 Process for producing chlorine dioxide |
11/27/1979 | US4176056 Cyclic operation of a bed of mixed ion exchange resins |
11/27/1979 | US4176022 Removal of part per billion level hardness impurities from alkali metal chloride brines |
10/31/1979 | EP0004883A2 Process for the preparation of free-flowing inorganic ammonium and alkali salts |
10/23/1979 | CA1064676A1 Process for modifying the appearance of crystalline sodium chloride |
10/16/1979 | CA1064222A1 Process for preventing the caking of alkali chlorides and alkali-chloride-containing salt mixtures and for maintaining their fluidity |
10/04/1979 | WO1979000713A1 Process for producing common salt |
09/11/1979 | CA1061962A1 Sodium chloride removal in pulp mill systems |
09/04/1979 | CA1061512A1 Sodium chloride removal in pulp mill systems |
08/14/1979 | US4164507 Process for separation of salt from heavy ends wastes of glycerine manufacture |
08/14/1979 | CA1060181A1 Treating remains containing sodium choride and sodium sulphate |
08/08/1979 | EP0003429A1 Production of alkali metal chlorides |
07/25/1979 | EP0003065A1 Process for the production of potassium chloride |
07/24/1979 | CA1059063A1 Process for the production of sodium hydroxyde from a sulfate containing sodium chloride and hyroxyde solution from electrolytic cells_________ |
07/17/1979 | CA1058358A1 Removal of dissolved salts from sulphide liquors |
07/10/1979 | CA1057945A1 Process for preparing a composition useful for reducing the caking tendency of a particulate sodium chloride |
06/26/1979 | US4159311 Anion exchange resin having microcrystals of lithium halide-aluminum hydroxide suspended therein |
05/22/1979 | US4155820 Coprecipitation of silica |
05/22/1979 | US4155819 Removal of heavy metals from brine |
03/27/1979 | US4146578 Alkali metal hydroxide reacted with chlorine, hypochlorous acid vaporized to separate it from alkali metal chloride |
03/13/1979 | US4144315 Reacting fluosilicic acid with ammonia |
01/02/1979 | US4132759 By precipitation of double salt of sodium sulfate and calcium sulfate |
12/26/1978 | US4131645 Iodine recovery process |
12/05/1978 | US4127989 Method for separating metal values from brine |
11/21/1978 | US4126526 Integration with production of chlorine |
10/24/1978 | CA1040866A1 Refining of chloride salts |
10/10/1978 | US4119508 Method of purifying the raw brine used in alkali salt electrolysis |
09/26/1978 | US4117078 Debromination, reaction with calcium chloride |
09/26/1978 | US4116858 Aluminum hydroxide suspended in ion exchange resin |
09/19/1978 | US4115219 Brine purification process |
09/12/1978 | US4113832 Process for the utilization of waste materials from electrolytic aluminum reduction systems |
09/12/1978 | US4113831 Recovery of sodium fluoride and other chemicals from spent carbon liners |
09/05/1978 | US4111991 Amine halides from a halogen, a hydrazine and an amine |
08/15/1978 | US4107274 Process for preventing caking and obtaining flowability of alkali chlorides and salt mixtures thereof |
06/13/1978 | US4094956 Method of reducing the sodium sulfate content of halite |
06/06/1978 | US4093508 Process for recovering chemicals from the waste liquors of sulfate cellulose digestion and the waste waters of bleaching |
05/09/1978 | US4088451 Concentration of underground brines in situ by solar evaporation |
05/02/1978 | US4087374 Photodichroic crystals and preparation thereof |
05/02/1978 | US4087253 Method of obtaining caustic soda from a sodium chloride liquor containing sulphate ions recovered from an electrolytic cell |
04/04/1978 | US4082606 Evaporation apparatus |
03/14/1978 | US4078978 Purification of electrolysis brine for diaphragm cells |
02/21/1978 | US4075309 Process for the production of highly concentrated magnesium chloride solutions |
02/14/1978 | US4073873 Cobalt oxide spinel catalyst |
02/14/1978 | US4073706 Brine treatment for trace metal removal |
02/07/1978 | US4072472 Solar evaporation |
11/29/1977 | US4060465 Method of purifying the raw brine used in alkali salt electrolysis |
11/08/1977 | US4057614 Process for producing sodium fluoride from sodium silicofluoride |
11/01/1977 | US4056599 Process for the recovery of magnesium chloride hydrate and potassium chloride from carnallite and bischofite |
09/27/1977 | US4051228 Complex iron cyanide, hydrophobic polymer |
09/13/1977 | US4048288 Method for preventing evaporation-condensation caking of sodium chloride at high temperatures |
09/06/1977 | US4046865 Process for producing sodium chloride brines suitable for electrolysis |
07/26/1977 | US4038365 Filtration |
07/26/1977 | US4038188 Method for preventing eutectic caking of sodium chloride at high temperatures |
06/21/1977 | US4031184 Process for reclaiming cement kiln dust and recovering chemical values therefrom |
05/31/1977 | US4026676 Process for producing salt having a reduced calcium sulfate content |
05/10/1977 | US4023059 High pressure light emitting electric discharge device |
04/05/1977 | US4016075 Adding ammonium hydroxide |
03/15/1977 | US4012297 From amalgam electrolytic cells |
03/01/1977 | US4010000 Controlled particle size |
02/01/1977 | US4006214 Process for the recovery of fluorine from an aqueous solution |
12/21/1976 | US3998709 Treating remains containing sodium chloride and sodium sulphate |
11/30/1976 | US3994531 Method of solution mining potassium chloride from subterranean deposits |
10/19/1976 | US3987077 Composition useful for reducing the caking tendency of particulate sodium chloride |
10/19/1976 | US3986951 Aluminum compounds, precipitation, chlorine, sodium chloride, hydroxide, and hypochlorite |
10/19/1976 | US3986923 Removal of dissolved salts from sulphide liquors |
08/24/1976 | US3976758 Production of chlorine dioxide |
08/17/1976 | US3975505 Production of chlorine dioxide |
07/20/1976 | US3970528 Calcium chloride, calcium sulfate |
07/13/1976 | US3969491 Purification of alkali metal chlorides and bromides |
07/06/1976 | US3968197 Process for treating sodium silico fluoride |
06/29/1976 | US3966541 Concentration of underground brines in situ by solar evaporation |
06/29/1976 | US3966539 Evaporation |
05/04/1976 | US3954552 Removal of sodium chloride from pulp mill systems |
04/27/1976 | US3953571 Process for the treatment of carburizing salt wastes |