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公开(公告)号：US5759512A
公开(公告)日：1998-06-02
申请号：US658196
申请日：1996-06-04
申请人： William Andrew Rickelton , Indje Ognianov Mihaylov , Bruce John Love , Pak Kuen Louie , Eberhard Krause
发明人： William Andrew Rickelton , Indje Ognianov Mihaylov , Bruce John Love , Pak Kuen Louie , Eberhard Krause
CPC分类号： C22B3/007 , C22C21/00 , F28F21/084 , Y02P10/234
摘要： The invention provides a method of regenerating dithiophosphorus extractants such as dithiophosphoric acids, dithiophosphonic acids and dithiophosphinic acids from their sulfur-sulfur bonded oxidation products contained in an organic solution. The process generates active hydrogen for regenerating the spent dithiophosphorus extractants. Advantageously, this active hydrogen originates either from introducing a reactive metal into a liquid mixture containing the organic solution and an acidic aqueous solution to form nascent hydrogen or from using hydrogen gas in the presence of a catalyst in the organic solution. The active hydrogen generated in the process breaks the sulfur-sulfur bonds of the dithiophosphorus molecules to form the corresponding dithiophosphorus acids.
摘要翻译： 本发明提供一种从有机溶液中含硫硫键合的氧化产物中再生二硫代磷酸提取剂如二硫代磷酸，二硫代磷酸和二硫代次膦酸的方法。 该方法产生活性氢以再生废二硫代磷提取物。 有利地，该活性氢源自于将有机金属引入含有机溶液和酸性水溶液的液体混合物中以形成新生氢气，或者在催化剂存在下在有机溶液中使用氢气。 在该过程中产生的活性氢破坏二硫代磷分子的硫 - 硫键形成相应的二硫代磷酸。
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2.发明授权公开(公告)号：US08147782B2
公开(公告)日：2012-04-03
申请号：US12235882
申请日：2008-09-23
CPC分类号： C01G53/04 , C01G53/003 , C01P2006/80 , C22B1/2406 , C22B3/0024 , C22B23/043 , C22B23/0461 , Y02P10/234
摘要： A process for producing a purified nickel hydroxide precipitate from a nickel-containing leach solution with impurities including one or more of the following: manganese, copper, zinc, iron and/or cobalt, so that the purified nickel hydroxide is suitable for pelletization with iron-containing ores and/or stainless steel production, includes treating the leach solution with a base to form a slurry of mixed hydroxide precipitate and low-nickel barren solution, thickening the slurry to form filter cake, washing the filter cake and contacting it with acid to dissolve nickel and other metals to produce a concentrated nickel-containing solution, subjecting the concentrated nickel-containing solution to solvent extraction with an organic acid extractant to remove metals other than nickel from the nickel-containing solution and form a solvent extraction raffinate of purified nickel solution and treating the solvent extraction raffinate with a base to precipitate the purified nickel hydroxide precipitate.
摘要翻译： 从包含以下一种或多种杂质的含镍浸出溶液中生产纯化的氢氧化镍沉淀物的方法：锰，铜，锌，铁和/或钴，使得纯化的氢氧化镍适于用铁造粒 包括矿石和/或不锈钢生产，包括用碱处理浸出溶液以形成混合氢氧化物沉淀物和低镍贫水溶液的浆料，使浆料增稠以形成滤饼，洗涤滤饼并与酸接触 溶解镍和其他金属以生产浓缩的含镍溶液，用有机酸萃取剂对浓缩的含镍溶液进行溶剂萃取，从含镍溶液中除去镍以外的金属，形成纯化的溶剂萃取残液 镍溶液并用碱处理溶剂萃取残液以沉淀纯化的氢氧化镍p 准备
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公开(公告)号：US07998441B2
公开(公告)日：2011-08-16
申请号：US11858380
申请日：2007-09-20
IPC分类号： B01J45/00
CPC分类号： C02F1/42 , B01J39/04 , B01J49/06 , B01J49/53 , C02F2101/20 , C02F2303/16
摘要： A method for selective removal of cadmium from a feed solution also containing other metals such as nickel (Ni) and/or cobalt (Co), utilizing a thiourea based ion exchange resin, and a method for eluting cadmium adsorbed on the thiourea based resin.
摘要翻译： 还可以使用硫脲类离子交换树脂，从含有镍（Ni）和/或钴（Co）等其他金属的原料溶液中选择性除去镉的方法以及硫脲类树脂上吸附的镉的洗脱方法。
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4.发明申请公开(公告)号：US20090087361A1
公开(公告)日：2009-04-02
申请号：US12235882
申请日：2008-09-23
IPC分类号： C01G53/04
CPC分类号： C01G53/04 , C01G53/003 , C01P2006/80 , C22B1/2406 , C22B3/0024 , C22B23/043 , C22B23/0461 , Y02P10/234
摘要： A process for producing a purified nickel hydroxide precipitate from a nickel-containing leach solution with impurities including one or more of the following: manganese, copper, zinc, iron and/or cobalt, so that the purified nickel hydroxide is suitable for pelletization with iron-containing ores and/or stainless steel production, includes treating the leach solution with a base to form a slurry of mixed hydroxide precipitate and low-nickel barren solution, thickening the slurry to form filter cake, washing the filter cake and contacting it with acid to dissolve nickel and other metals to produce a concentrated nickel-containing solution, subjecting the concentrated nickel-containing solution to solvent extraction with an organic acid extractant to remove metals other than nickel from the nickel-containing solution and form a solvent extraction raffinate of purified nickel solution and treating the solvent extraction raffinate with a base to precipitate the purified nickel hydroxide precipitate.
摘要翻译： 从包含以下一种或多种杂质的含镍浸出溶液中生产纯化的氢氧化镍沉淀物的方法：锰，铜，锌，铁和/或钴，使得纯化的氢氧化镍适于用铁造粒 包括矿石和/或不锈钢生产，包括用碱处理浸出溶液以形成混合氢氧化物沉淀物和低镍贫水溶液的浆料，使浆料增稠以形成滤饼，洗涤滤饼并与酸接触 溶解镍和其他金属以生产浓缩的含镍溶液，用有机酸萃取剂对浓缩的含镍溶液进行溶剂萃取，从含镍溶液中除去镍以外的金属，形成纯化的溶剂萃取残液 镍溶液并用碱处理溶剂萃取残液以沉淀纯化的氢氧化镍p 准备
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