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21. 发明授权

US3615364A Reduction of cuprous cyanide with hydrogen in a liquid medium 失效
标题翻译：在液体介质中还原氢氧化碳
公开(公告)号：US3615364A
公开(公告)日：1971-10-26
申请号：US3615364D
申请日：1969-10-01
申请人： TREADWELL CORP
发明人： RUBAK IRVING
IPC分类号： C22B15/00 , C22B3/00 , C22B3/44 , C22B5/00 , C22B15/08 , C22B15/12
CPC分类号： C22B5/00
摘要： Cuprous cyanide is dispersed in a high boiling hydrocarbon oil nonreactive with hydrogen, copper or HCN, such as a paraffin mineral oil, and hydrogen is passed through at temperatures from 190* C. to temperatures at or a little below the boiling point of the oil. With an oil boiling above 325* C., suitable temperatures are from a little below 300* C. to approximately 325* C. Hydrogen is passed through at a rate and for a time to produce a substantial excess, for example at least 50 percent excess, and the cuprous cyanide is reduced almost quantitatively to a very pure copper powder. After reduction is complete, the copper powder is separated from the oil, the last traces of oil being removed by known means, such as solvent washing, or removed when the copper is melted. The excess hydrogen carries with it HCN formed in the reduction, and the two are separated and reused.

22. 发明授权

US3574541A Nonferrous metal concentration and separation process 失效
标题翻译：非金属金属浓度和分离过程
公开(公告)号：US3574541A
公开(公告)日：1971-04-13
申请号：US3574541D
申请日：1969-01-27
申请人： DAVID O HINES
发明人： HINES DAVID O
IPC分类号： C01G3/02 , C22B15/00 , C22B3/00 , C22B15/08
CPC分类号： C01G3/02 , C22B15/0063 , Y02P10/236
摘要： THIS INVENTION IS A NON-FERROUS METAL ORE BENEFICIATION PROCESS WHEREIN NON-FERROUS METAL BEARING COMPOUNDS ARE CONVERTED CHEMICALLY TO NEW COMPOUNDS HAVING A GREATER DENSITY THAN THE ORIGINAL ONES. THE PROCESS FREES OTHER METALS IN COMBINATION WITH THE NON-FERROUS METAL COMPOUNDS DURING THE CONCENTRATION PROCESS. THE CHANGE IN DENSITY OF THE NON-FERROUS METAL COMPOUNDS AND SEPARATION OF THE METALLIC ELEMENTS IN THE ORE FACILITATES THE SEPARATION OF THE COMPOUNDS AND METALLIC ELEMENTS BY MEANS OF SPIRAL SEPARATORS OR OTHER SIMILAR DEVICES. THE BENEFICIATION PROCESS COMPRISES THREE STAGES: THE AMMONIATION STAGE, THE DIGESTION STAGE AND THE CONVERSION STAGE. THE STEPS ARE CARRIED OUT AT ATMOSPHERIC PRESSURE, TEMPERATURES ABOVE 214* FAHRENHEIT ARE NOT REQUIRED, AND ELEMENTAL COPPER IS NOT PRECIPITATED WHEN THE PROCESS IS USED ON COPPER BEARING ORES.

23. 发明授权

US3459535A Treatment of copper bearing complex sulphides 失效
标题翻译：铜复合硫化物的处理
公开(公告)号：US3459535A
公开(公告)日：1969-08-05
申请号：US3459535D
申请日：1966-03-07
申请人： SHERRITT GORDON MINES LTD
发明人： VIZSOLYI ANDREW I , ARMSTRONG ANNA M , FORWARD FRANK A
IPC分类号： C22B15/00 , C22B1/02 , C22B15/08
CPC分类号： C22B15/0063 , Y02P10/236

24. 发明授权

US3428449A Extraction of copper from acidic liquors with a phenolic oxime 失效
标题翻译：从酸性液体中提取铜与苯酚氧化物
公开(公告)号：US3428449A
公开(公告)日：1969-02-18
申请号：US3428449D
申请日：1968-03-06
申请人： GEN MILLS INC
发明人： SWANSON RONALD R
IPC分类号： C01G3/00 , C22B3/30 , C22B15/08 , C22B3/00
CPC分类号： C01G3/003 , C22B3/0017 , Y02P10/234

25. 发明授权

US4244735A Chloride leach process for recovering metal values in the presence of arsenic 失效
标题翻译：用于在砷存在下回收金属值的氯化物浸出工艺
公开(公告)号：US4244735A
公开(公告)日：1981-01-13
申请号：US61411
申请日：1979-07-27
申请人： James E. Reynolds , Enzo L. Coltrinari
发明人： James E. Reynolds , Enzo L. Coltrinari
IPC分类号： C22B3/06 , C22B3/10 , C22B3/14 , C22B7/02 , C22B30/04 , C22B13/04 , C22B11/04 , C22B15/08 , C22B19/22
CPC分类号： C22B30/04 , C22B3/06 , C22B3/10 , C22B3/12 , C22B7/02 , Y02P10/234 , Y10S75/961
摘要： An improvement in the hydrometallurgical recovery of metals, such as, lead, silver, gold, antimony, and bismuth from materials such as flue dust in the presence of arsenic, comprising precipitating arsenic as an insoluble ferric-arsenic compound in the first processing step, carrying the insoluble arsenic compound through a chloride leach step, in which it is insoluble, to recover the metals, and disposing of the residue in which the arsenic has been fixed with ferric ions to render it non-polluting, or alternatively, recovering the arsenic by caustic leach and crystallization.
摘要翻译：在砷的存在下，诸如铅，银，金，锑和铋等材料的诸如铅，银，金，锑和铋的湿法冶金回收的改进，包括在第一加工步骤中沉淀砷作为不溶性三价砷化合物，通过其不溶性的氯化物浸出步骤携带不溶性砷化合物，以回收金属，并且用铁离子处理固定有砷的残留物以使其无污染，或者替代地回收砷通过苛性浸出和结晶。

26. 发明授权

US4219354A Hydrometallurgical process for the treatment of oxides and ferrites which contain iron and other metals 失效
标题翻译：用于处理含铁和其他金属的氧化物和铁氧体的湿法冶金工艺
公开(公告)号：US4219354A
公开(公告)日：1980-08-26
申请号：US955500
申请日：1978-10-27
申请人： Jussi K. Rastas , Sigmund P. Fugleberg , Seppo O. Heimala , Sitg-Erik Hultholm , Jaakko T. I. Poijarvi
发明人： Jussi K. Rastas , Sigmund P. Fugleberg , Seppo O. Heimala , Sitg-Erik Hultholm , Jaakko T. I. Poijarvi
IPC分类号： C22B19/00 , C21B15/00 , C22B3/00 , C22B3/04 , C22B3/08 , C22B3/22 , C22B3/44 , C22B15/00 , C22B17/00 , C22B19/20 , C22B23/00 , C22B26/22 , C22B47/00 , C22B19/22 , C22B15/08 , C22B23/04
CPC分类号： C22B3/08 , C22B3/22 , Y02P10/234
摘要： A hydrometallurgical process for the treatment of a raw material which contains iron and other metals, with a sulfuric acid solution, in order to dissolve the metals and to precipitate and separate the iron, the separated metal sulfate solution being exposed to evaporation in order to crystallize and separate the metal sulfates from the mother liquor, which is recycled to the treatment stage performed with sulfuric acid solution, and the separated metal sulfate being recovered.
摘要翻译：一种用于处理含有铁和其它金属的原料与硫酸溶液的湿法冶金方法，以便溶解金属并沉淀和分离铁，将分离的金属硫酸盐溶液暴露于蒸发以结晶并将金属硫酸盐与母液分离，将其循环至用硫酸溶液进行的处理阶段，并回收分离的金属硫酸盐。

27. 发明授权

US4166737A Method for dissolving the non-ferrous metals contained in oxygenated compounds 失效
标题翻译：用于溶解含氧化合物中含有的有色金属的方法
公开(公告)号：US4166737A
公开(公告)日：1979-09-04
申请号：US858196
申请日：1977-12-07
申请人： Jean-Michel Demarthe , Andre Georgeaux
发明人： Jean-Michel Demarthe , Andre Georgeaux
IPC分类号： C22B3/10 , C22B13/04 , C22B15/08 , C22B19/00 , C22B23/04
CPC分类号： C22B3/10 , Y02P10/234
摘要： A method for the dissolution of non-ferrous metals contained in oxygenated compounds in which the oxygenated compounds are subjected to the action of a ferrous chloride solution and a gas containing oxygen is mixed with the solution.
摘要翻译：将含氧化合物的含氧化合物中含有的有色金属溶解在其中经过氯化亚铁溶液和含氧气体的方法与该溶液混合。

28. 发明授权

US4123260A Selective recovery of nickel and cobalt or copper and zinc from solution 失效
标题翻译：从溶液中选择性地回收镍和钴或铜和锌
公开(公告)号：US4123260A
公开(公告)日：1978-10-31
申请号：US796495
申请日：1977-05-12
申请人： Verner B. Sefton , Russell P. Kofluk
发明人： Verner B. Sefton , Russell P. Kofluk
IPC分类号： C01G3/00 , C01G9/00 , C01G51/00 , C01G53/00 , C01G53/10 , C22B15/00 , C22B23/00 , C22B15/08 , C22B19/22
CPC分类号： C01G53/003 , C01G3/003 , C01G9/003 , C22B23/04 , C22B3/42 , Y02P10/234
摘要： A process for separately recovering nickel and cobalt from solution includes adjusting the pH of the solution to a value between about 3 and about 6, and then contacting the solution with a chelating ion exchange resin having aminocarboxylic acid functional groups to selectively load nickel onto the resin to produce a nickel loaded resin and a nickel depleted cobalt containing solution. The process is also applicable to the separate recovery of copper and zinc from solution.
摘要翻译：从溶液中单独回收镍和钴的方法包括将溶液的pH调节至约3至约6之间的值，然后使溶液与具有氨基羧酸官能团的螯合离子交换树脂接触以选择性地将镍加载到树脂上以生产负载镍的树脂和含镍的含钴溶液。该方法也适用于从溶液中分离回收铜和锌。

29. 发明授权

US3998628A Method for selectively dissolving non-ferrous metals contained in pyritic ores 失效
标题翻译：选择性地溶解黄铁矿中含有有色金属的方法
公开(公告)号：US3998628A
公开(公告)日：1976-12-21
申请号：US553323
申请日：1975-02-26
申请人： Louis Gandon , Jean-Michel Demarthe , Alain Alexandre Sonntag
发明人： Louis Gandon , Jean-Michel Demarthe , Alain Alexandre Sonntag
IPC分类号： C22B19/00 , C22B3/00 , C22B3/04 , C22B3/10 , C22B11/00 , C22B13/00 , C22B15/00 , C22B19/20 , C22B15/08 , C22B11/06 , C22B13/04 , C22B19/22
CPC分类号： C22B3/10 , Y02P10/234
摘要： A method for selectively dissolving non-ferrous metals contained in pyritic ores by the steps of crushing the ores, introducing the crushed ore at a temperature above the ambient temperature into a reaction vessel containing a solution of chlorides of a metal having two valance states, and injecting gaseous chlorine into the reaction vessel at a rate such that the oxido-reduction potential of the solution of chlorides remains between 400 and 700 mv during the operation.
摘要翻译：通过以下步骤选择性地溶解含有金属的方法：粉碎矿石，将破碎的矿石在高于环境温度的温度下引入包含具有两个价态的金属的氯化物溶液的反应容器中;以及以使得氯化物溶液的氧化还原电位在操作期间保持在400和700mv之间的速率将气态氯注入反应容器中。

30. 发明授权

US3933478A Recovery of zinc and copper from brass scrap 失效
标题翻译：从黄铜废料中回收锌和铜
公开(公告)号：US3933478A
公开(公告)日：1976-01-20
申请号：US470624
申请日：1974-05-16
申请人： Robert N. Moore
发明人： Robert N. Moore
IPC分类号： C22B19/34 , C01G9/02 , C22B7/00 , C22B15/00 , C22B15/08 , C22B15/12 , C22B19/22
CPC分类号： C22B7/00 , C22B15/0063 , Y02P10/236
摘要： Process for receovering copper values (and zinc, if present) from copper bearing materials, optionally in admixture with iron. The feed material is leached with a mixture of nitric and sulphuric acids, after which the dissolved copper is cemented from solution by contact with iron. The solution, containing dissolved iron (and zinc, if present in the feed material) salts is reacted with ZnO to precipitate iron as ferric oxide, which is separated, leaving zinc sulfate in solution. Solid zinc sulfate is recovered from the solution by evaporation, and then calcined to produce SO.sub.2, which is recovered and recycled as H.sub.2 SO.sub.4, and ZnO, which is reused in the process, any excess being recovered as a product.
摘要翻译：从铜轴承材料中接收铜值（和锌，如果存在）的方法，任选与铁混合。用硝酸和硫酸的混合物浸提进料，然后通过与铁接触将溶解的铜从溶液中胶合。含有溶解的铁（和锌，如果存在于原料中）的溶液与ZnO反应，以氧化铁的形式析出铁，将其分离，在溶液中留下硫酸锌。通过蒸发从溶液中回收固体硫酸锌，然后煅烧以产生SO 2，其被回收并再循环为H 2 SO 4，并且在该过程中再利用的ZnO作为产物回收。

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