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