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51. 发明授权

US3950487A Solvent-in-pulp extraction of copper and nickel from ammoniacal leach slurries 失效
标题翻译：从氨质浸出浆中提取铜和镍的纸浆溶剂
公开(公告)号：US3950487A
公开(公告)日：1976-04-13
申请号：US479150
申请日：1974-06-13
申请人： J. Paul Pemsler , John K. Litchfield
发明人： J. Paul Pemsler , John K. Litchfield
IPC分类号： C01G3/00 , C01G53/00 , C22B3/14 , C22B3/30 , C22B15/00 , C22B23/00 , C22B34/34 , C22B47/00 , C01G51/00 , C22B3/00
CPC分类号： C22B47/0081 , C01G3/003 , C01G53/003 , C22B15/0078 , C22B3/0017 , C22B3/14 , C22B34/34 , C22B47/0072 , Y02P10/234 , Y02P10/236 , Y10S423/04
摘要： A process in which copper, nickel, cobalt and molybdenum are recovered by leaching comminuted raw manganese nodules with an aqueous ammoniacal leach solution containing cuprous ions. An improvement is disclosed in which the metal values are extracted directly from the leach slurry with an organic extractant. To accomplish such extraction the amount by weight of solids in the slurry is maintained at less than 20 percent, the pH of the slurry is lowered to 9.5, the volumes of slurry and organic are maintained at a ratio so that the organic is the continuous phase and the organic and slurry are mixed with gentle agitation.
摘要翻译：通过用含有亚硝酸根的含水硝酸溶液浸出粉碎的原锰结核来回收铜，镍，钴和钼的方法。公开了一种改进，其中用有机萃取剂直接从浸出浆中提取金属值。为了实现这种提取，将浆料中固体的重量保持在小于20％，浆料的pH降低至9.5，浆料和有机物的体积保持在一定比例下，使得有机物为连续相并将有机物和浆料与轻柔的搅拌混合。

52. 发明授权

US3911077A Tungsten recovery from tungsten ore concentrates by caustic baking 失效
标题翻译：通过苛性烘烤从钨矿精矿中回收钨
公开(公告)号：US3911077A
公开(公告)日：1975-10-07
申请号：US50285874
申请日：1974-09-03
申请人： GTE SYLVANIA INC
发明人： MARTIN BRICE E , RITSKO JOSEPH E , LONG JR ROBERT E
IPC分类号： C01G41/00 , C22B3/14 , C22B34/36
CPC分类号： C22B34/36 , C01G41/00 , C22B3/12 , Y02P10/234
摘要： Tungsten is recovered from scheelite ore concentrates, or other tungsten concentrates which may, or may not contain scheelite in the form of sodium tungstate and in yields up to 99.5 percent or more by a process in which ground ore substantially below 200 mesh in particle size is first added to a 50 percent sodium hydroxide solution while being agitated to such an extent that the resulting mixture becomes a semi-solid as the temperature is raised above 80*C. The semi-solid is then baked at 135 to 145*C for about 1 to 2 hours, followed by adding sufficient water to the semi-solid to form a slurry having a sodium hydroxide concentration below 6 molar, separating the causticinsoluble sludge from the slurry and washing the sludge with a dilute sodium hydroxide solution to remove residual sodium tungstate.
摘要翻译：从白钨矿矿石浓缩物或其他钨精矿中回收钨，其中钨精矿可以是钨酸钠，也可以不含钨酸钠的白钨矿，其产率高达99.5％或更高。首先加入到50％氢氧化钠溶液中，同时搅拌至当温度升至80℃以上时所得混合物变成半固体的程度。然后将半固体在135至145℃烘烤约 1至2小时，然后向半固体中加入足够的水以形成氢氧化钠浓度低于6摩尔的浆料，将不溶性污泥与浆料分离，并用稀氢氧化钠溶液洗涤污泥以除去残留的钨酸钠。

53. 发明授权

US3734715A Extraction of metal values from complex ores 失效
标题翻译：从复杂ORES提取金属值
公开(公告)号：US3734715A
公开(公告)日：1973-05-22
申请号：US3734715D
申请日：1970-07-16
申请人： KENNOCOTT COPPER CORP
发明人： REDMAN MICHAEL J
IPC分类号： C22B3/00 , C22B3/14 , C22B5/00 , C22B23/00 , C22B34/34 , C22B47/00 , C21B1/02
CPC分类号： C22B34/34 , C22B3/14 , C22B5/00 , C22B23/005 , C22B23/0446 , C22B47/0027 , C22B47/0072 , Y02P10/212 , Y02P10/234 , Y10S423/04
摘要： COPPER, NICKEL, COBALT ANDMOLYBDENUM MAY BE EXTRACTED FROM COMPLEX ORES CONTAINING MANGANESE, IRON, COPPER, NICKEL, COBALT AND MOLYBDENUM BY SUBJECTING THE COMPLEX ORE TO GASEOUS REDUCTANTS AT TEMPERATURES IN THE RANGE OF 300 TO 800*C. AND LEACHING THE REDUCED COMPLEX ORE WITH A SOLUTION OF AN AMMONIUM SALT IN AQUEOUS AMMONIA.

54. 发明授权

US2847300A Process for recovering metal values from ore 失效
标题翻译：从矿石中回收金属价值的工艺
公开(公告)号：US2847300A
公开(公告)日：1958-08-12
申请号：US62237456
申请日：1956-11-15
申请人： TEXACO DEVELOPMENT CORP
发明人： PAULL PETER L
IPC分类号： C22B3/00 , C22B3/14 , C22B15/00
CPC分类号： C22B23/0446 , C22B3/14 , C22B15/0063 , Y02P10/234 , Y02P10/236

55. 发明授权

US2837406A Hydrometallurgical process 失效
标题翻译：湿法冶金工艺
公开(公告)号：US2837406A
公开(公告)日：1958-06-03
申请号：US50625855
申请日：1955-05-05
申请人： CHEMICAL CONSTRUCTION CORP
发明人： SCHAUFELBERGER FELIX A
IPC分类号： C01G1/00 , C22B3/14
CPC分类号： C01G1/00 , C22B3/14 , Y02P10/234

56. 发明授权

US2726934A Hydrometallurgical method of extracting metal values 失效
标题翻译：提取金属值的湿法冶金方法
公开(公告)号：US2726934A
公开(公告)日：1955-12-13
申请号：US24775251
申请日：1951-09-21
申请人： SHERRITT GORDON MINES LTD
发明人： ARTHUR FORWARD FRANK , NICHOLAS MACKIW VLADIMIR
IPC分类号： C01G1/00 , C01G3/14 , C22B3/00 , C22B3/04 , C22B3/14
CPC分类号： C22B3/04 , C01G1/00 , C01G3/14 , C22B3/14 , C22B23/0446 , Y02P10/234

57. 发明授权

US1969769A Process of extracting metals from ores 失效
标题翻译：从矿石中提取金属的工艺
公开(公告)号：US1969769A
公开(公告)日：1934-08-14
申请号：US39468029
申请日：1929-09-23
申请人： GEN MANGANESE CORP
发明人： SWEET ANDREW T , MACCARTHY JOHN D
IPC分类号： C22B3/14
CPC分类号： C22B3/14 , Y02P10/234

58. 发明申请

US20230124749A1 AMMONIUM COMPLEX SYSTEM-BASED METHOD FOR SEPARATING AND PURIFYING LEAD, ZINC, CADMIUM, AND COPPER 有权
公开(公告)号：US20230124749A1
公开(公告)日：2023-04-20
申请号：US17914278
申请日：2020-12-28
申请人： GREENNOVO ENVIRONMENTAL TECHNOLOGY CO., LTD.
发明人： Yan LUO , Liyang MA , Guojun FENG , Wu ZHANG , Rui CHEN , Qinglong MA
IPC分类号： C22B3/14 , C22B3/00 , C22B3/22 , C25C1/16
摘要： An ammonium complex system-based method for separating and purifying lead, zinc, cadmium, and copper, comprising the following steps: a zinc-containing raw material is leached using a leach solution to produce a leached solution; a filtrate and a filter residue are produced by filtration; the filtrate is mixed with metal lead to displace copper, undergoes a solid-liquid separation to produce a first separated liquid, is mixed with metal cadmium to displace lead, undergoes a solid-liquid separation to produce a second separated liquid, is mixed with metal zinc to displace cadmium, and undergoes a solid-liquid separation to produce a third separated liquid; and, the third separated liquid is electrolyzed to produce metal zinc, and an electrolytic solution is returned to the leaching step.

59. 发明授权

US11466191B2 Treated geothermal brine compositions with reduced concentration of silica, iron and lithium 有权
公开(公告)号：US11466191B2
公开(公告)日：2022-10-11
申请号：US17061106
申请日：2020-10-01
申请人： TERRALITHIUM LLC
发明人： Stephen Harrison , John Burba, III
IPC分类号： C09K5/10 , C09K5/04 , E21B43/25 , C01D3/04 , C22B26/00 , C22B13/00 , C22B19/00 , C02F9/00 , B01J20/08 , C01D15/00 , C01B33/26 , C01F7/46 , C02F1/26 , C02F1/42 , C02F1/52 , C02F1/56 , C02F1/66 , C02F1/74 , C02F5/00 , C22B3/14 , C02F1/28 , C02F101/10 , C02F101/20 , C02F103/06 , C02F103/08 , C02F103/10
摘要： This invention relates to treated geothermal brine compositions containing reduced concentrations of lithium, iron and silica compared to the untreated brines. Exemplary compositions contain concentration of lithium ranges from 0 to 200 mg/kg, concentration of silica ranges from 0 to 30 mg/kg, concentration of iron ranges from 0 to 300 mg/kg. Exemplary compositions also contain reduced concentrations of elements like arsenic, barium, and lead.

60. 发明授权

US10364156B2 Process for producing high grade hydromagnesite and magnesium oxide 有权
公开(公告)号：US10364156B2
公开(公告)日：2019-07-30
申请号：US15126180
申请日：2015-04-10
申请人： Karnalyte Resources Inc.
发明人： Robin Phinney , Jonathon Phinney , Siu Ma
IPC分类号： C01F5/06 , C01F5/20 , C01F5/24 , C04B2/10 , C01F11/46 , C22B3/14 , C22B3/22 , C01B32/50
摘要： The present invention provides a process for producing high purity hydromagnesite from a source of magnesium chloride. The process involves preparation of a magnesium chloride brine of a specific concentration, which is ammoniated at a specific temperature range, followed by carbonation, while maintaining the reaction at a specific temperature range to form a hydromagnesite precipitate. The product can be calcined to generate high purity magnesium oxide compounds.

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