Patents for C01G 5 - Compounds of silver (991) |
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03/02/1983 | EP0073108A1 A process for the recovery of metals |
02/23/1983 | EP0072714A2 Silver halide precipitation process with withdrawal of a portion of the dispersing medium, through the reaction vessel |
02/15/1983 | US4374098 Method of concentrating silver from anode slime |
02/01/1983 | US4371393 Reduction |
12/22/1982 | EP0067626A1 Distillation process for separating silver and copper chlorides |
12/22/1982 | EP0067537A1 Process for the lowering of the oxidation state of metal salts |
10/12/1982 | CA1133227A1 Precipitation of chloride from zinc sulphate solution |
09/08/1982 | EP0059227A1 Flotation process for the continuous recovery of silver or silver compounds from solutions or dispersions |
08/18/1982 | EP0057684A1 Recovery of metal values |
08/03/1982 | US4342591 Process for the recovery of gold and/or silver and possibly bismuth contained in sulfuretted ores and/or sulfoarsenides |
06/22/1982 | US4336328 Silver halide precipitation process with deletion of materials through the reaction vessel |
06/01/1982 | US4332687 Mixture of peroxide and ozone to oxidize and decompose complexes |
05/26/1982 | EP0052253A2 Process for winning metals from aqueous solutions |
02/18/1982 | WO1982000478A1 Recovery of metal values |
02/17/1982 | EP0045850A1 Method of separating metals from aqueous solutions |
01/05/1982 | US4309501 Crystallization process |
12/30/1981 | EP0042702A1 Process for the recovery of lead and silver from minerals and process residues |
12/15/1981 | CA1114176A1 Process for recovering heavy metal ions from dilute aqueous solution |
11/17/1981 | US4301241 Process for forming light-sensitive silver halide crystals |
09/15/1981 | US4289733 Apparatus for making silver halide grains |
08/25/1981 | US4286055 Process for the preparation of monodisperse photographic silver halide emulsions of improved sensitivity |
08/25/1981 | US4286029 High energy betteries |
06/09/1981 | CA1102557A1 Desorption of gold from activated carbon |
06/09/1981 | CA1102525A1 Chlorides of lead, zinc, copper, silver and gold |
04/21/1981 | US4263011 Crystallization process |
03/17/1981 | US4256705 Leaching agglomerated gold - silver ores |
03/17/1981 | US4256704 Hydrometallurgical process for the recovery of silver as silver halide or silver pseudohalide from waste photographic paper and film and other sensitized materials |
12/23/1980 | US4241173 Precipitation in an excess of sodium, potassium, or ammonium chloride |
12/10/1980 | EP0019847A2 Process for the preparation of metal salts, photographic materials and their use in the production of photographic images |
11/25/1980 | CA1090141A1 Method for recovering silver and gold in solid silver or gold bearing matter |
11/11/1980 | CA1089277A1 Photographic emulsions and elements containing agcl crystals forming epitaxial junctions with agi crystals |
11/04/1980 | US4231889 Divalent silver oxide for use in primary cell and manufacturing method thereof |
10/21/1980 | US4229270 Process for the recovery of metal values from anode slimes |
09/16/1980 | US4223173 Nonionic crosslinked resin containing amine or phosphine groups adducted to borane; hydrogenating olefins, ketones or aldehydes |
08/26/1980 | CA1084505A1 Certain sulfonamidoquinolines, metal complexes thereof, and solutions containing such sulfonamidoquinolines and metal complexes |
08/19/1980 | CA1083826A1 Process for extracting silver from residues containing silver and lead |
06/24/1980 | US4209501 Chlorination of sulfides in a fused salt bath |
06/24/1980 | US4209419 Certain sulfonamidoquinolines, metal complexes thereof, and solutions containing such sulfonamidoquinolines and metal complexes |
05/06/1980 | CA1076776A1 Method of making silver halide emulsions |
04/08/1980 | US4197275 Silver recovery |
03/25/1980 | CA1074127A1 Process for precipitating precious metals from solutions which contain them |
03/25/1980 | CA1074126A1 Process for separating and recovering rhodium and iridium from their mixtures with other precious metals |
03/11/1980 | CA1073203A2 Apparatus for refining metal concentrates |
02/19/1980 | CA1071970A1 Process for the preparation of silver halide emulsions |
01/15/1980 | CA1069704A1 Extraction and purification of silver |
10/23/1979 | CA1064711A1 Extraction method for non-ferrous metals |
09/04/1979 | CA1061569A1 Process for extraction of copper chlorides from aqueous solutions |
08/28/1979 | US4166013 Electrolysis of an alkali metal b-alumina |
08/07/1979 | US4163664 Process for precipitating precious metals from solutions which contain them |
07/03/1979 | US4159930 Process for recovering heavy metal ions from dilute aqueous solution |
06/12/1979 | CA1056160A1 Recovery of silver from silver-containing solutions |
06/05/1979 | US4157289 Process for preparing slightly soluble silver salt grains |
05/08/1979 | US4153462 Method of making silver halide emulsions |
04/24/1979 | US4150994 Process for the manufacture of photographic silver halide emulsions containing silver halide crystals of the twinned type |
04/17/1979 | CA1052586A1 Process for oxidizing metal sulfides to elemental sulfur using activated carbon |
03/20/1979 | US4145212 Process for recovering silver and optionally gold from a solid starting material containing said metals |
03/06/1979 | CA1049796A1 Process for the extraction of metal ions from an aqueous solution |
03/06/1979 | CA1049794A1 Separation and/or purification of precious metals |
01/23/1979 | US4136157 Adding aluminum metal or compound, adjusting ph with silver oxide, precipitating impurities |
01/09/1979 | CA1045825A1 Process for the destruction of developed and undeveloped photosensitive film and the recovery of products therefrom |
12/26/1978 | US4131454 Process for recovering silver and gold from chloride solutions |
11/28/1978 | US4127639 Precipitation as silver sulfide |
11/21/1978 | US4126584 Process for treating silver oxide |
10/31/1978 | US4123500 Recovery of precious metals by oxidation in the aqueous phase of associated carbonaceous support material |
10/24/1978 | CA1040837A1 Process for the recovery of group 1-b metal halides from bimetallic salt complexes |
09/05/1978 | CA1038030A1 Silver-ii-oxide for galvanic elements |
07/18/1978 | US4101315 Recovery of silver from cuprous chloride solutions by co-crystallization with sodium chloride |
07/11/1978 | US4100250 Selective precipitation of copper chlorides from aqueous solutions with unsaturated aliphatic hydrocarbons |
07/11/1978 | US4100163 Substituted 8-sulfonamidoquinolines |
06/13/1978 | US4094684 Photographic emulsions and elements containing agel crystals forming epitaxial junctions with AgI crystals |
06/13/1978 | US4094668 Leaching, roasting, slurrying |
03/28/1978 | US4081271 Process for separating and recovering rhodium and iridium from their mixtures with other precious metals |
03/21/1978 | US4080210 Method and apparatus for preparing uniformly-sized fine particles |
03/14/1978 | US4078918 Method for precious metal recovery |
03/07/1978 | US4078002 9-borabicyclo(3.3.1)nonane |
02/07/1978 | US4072587 Lime, sodium sulfide, electrowinning |
09/27/1977 | US4051026 Recovery of silver from silver-containing solutions |
07/26/1977 | US4038080 Fix and bleach-fix bath desilvering |
01/18/1977 | US4003757 Silver-II-oxide for galvanic elements |
12/14/1976 | US3997337 Separation and/or purification of precious metals |
12/07/1976 | US3996046 Extraction and purification of silver from sulfates |
11/16/1976 | US3992506 Hydrochloric acid |
11/16/1976 | US3992197 Silver crystals and production thereof |
10/05/1976 | US3984479 9-borabicyclo(3.3.1) nonane |
08/10/1976 | US3974253 Leaching of copper ores to recover sulfur and silver catalyst |
07/20/1976 | US3970737 Metal, particularly gold, recovery from adsorbed cyanide complexes |
05/25/1976 | US3958985 Inorganic acids, heat treatment |
05/11/1976 | US3956088 Process for the destruction of developed and undeveloped photosensitive film and the recovery of products therefrom |
02/24/1976 | US3940261 Process for preparing crystalline silver particles having electrically conductive surfaces and product |
01/27/1976 | US3935006 Process for eluting adsorbed gold and/or silver values from activated carbon |
01/06/1976 | US3930969 Leaching |