C01G 3/14

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Patent/Pub #TitleFiling DateIssue/Publication DatePatent Owner
9889403 Solid ammonia storage and delivery materialFeb 26, 13Feb 13, 18AMMINEX EMISSIONS TECHNOLOGY A/S
7655211 Process for producing ammonium thiosulfateAug 22, 07Feb 02, 10THIOSOLV, LLC
5332560 Process for the removal of zinc and nickel from copper ammine sulfate solutionsMar 05, 93Jul 26, 94Cato Research Corporation
5328669 Extraction of precious metals from ores and other precious metal containing materials using halogen saltsJan 26, 93Jul 12, 94South Dakota School of Mines and Technology
5308381 Ammonia extraction of gold and silver from ores and other materialsApr 15, 93May 03, 94South Dakota School of Mines and Technology
5114687 Ammonia extraction of gold and silver from ores and other materialsDec 14, 90May 19, 92South Dakota School of Mines and Technology, SOUTH DAKOTA SCHOOL OF MINES AND TECHNOLOGY, SOUTH DAKOTA INSTITUTION OF HIGHER EDUCATION,
4371506 Ammoniacal elution of copper from ion exchange resinsJun 18, 81Feb 01, 83ALCOA SEPARATIONS TECHNOLOGY, INC. A CORPORATION OF DE, Himsley Engineering Limited,
4369164 Recovery of copper from arsenical drosses by ammonium arsenate leachDec 04, 81Jan 18, 83I.S.C. Smelting Limited, Metallurgical Processes Limited,
4335010 Preparation of muconic acid mononitriles and copper(II)-ammonia reagent thereforFeb 02, 81Jun 15, 82Allied Corporation