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1.发明授权
公开(公告)号：US06048506A
公开(公告)日：2000-04-11
申请号：US754175
申请日：1996-11-25
申请人： John E. Fittock , Malcolm J. Price , John G. Reid
发明人： John E. Fittock , Malcolm J. Price , John G. Reid
CPC分类号： C22B23/043 , C22B23/0453 , C22B23/0476 , C22B3/0005 , Y02P10/234
摘要： A process for the separation of unwanted ferric, iron and zinc impurities from a cobalt sulphate solution containing these impurities, the process including the steps of (i) reacting the cobalt sulphate solution with an organic reagent specific for the removal of iron and zinc at an initial pH of less 2.8 to remove the majority of the unwanted ferric iron impurities; and (ii) slowly raising the pH of the solution to about 3.5 in order to remove zinc impurities and any remaining ferric iron impurities.
摘要翻译： 一种从含有这些杂质的硫酸钴溶液中分离不需要的铁，铁和锌杂质的方法，该方法包括以下步骤：（i）使硫酸钴溶液与特定于硫酸铁溶液中去除铁和锌的有机试剂反应 初始pH值小于2.8去除大部分不需要的三价铁杂质; 和（ii）将溶液的pH缓慢升高至约3.5以除去锌杂质和任何剩余的三价铁杂质。
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公开(公告)号：US5605668A
公开(公告)日：1997-02-25
申请号：US329848
申请日：1994-10-27
CPC分类号： C22B3/0005 , C22B23/043 , C22B23/0453 , C22B23/0476 , Y02P10/234
摘要： A process for the preparation and purification of a cobalt oxide hydroxide intermediate from a cobalt sulphate solution containing cationic and anionic impurities, including the successive steps of (i) contacting the cobalt sulphate solution with an organic reagent to extract iron and zinc cationic impurities from the sulphate solution; (ii) extracting the cobalt from the sulphate solution with an organic reagent to produce a cobalt loaded organic phase substantially free of all anionic impurities; (iii) stripping the cobalt loaded organic phase with a concentrated ammoniacal ammonium carbonate solution to produce an ammoniacal ammonium carbonate strip liquor rich in cobalt II ammines; (iv) oxidizing the cobalt II ammines in the ammoniacal ammonium carbonate strip liquor to cobalt III tetraammines; (v) extracting the majority of nickel impurity from the cobalt III tetraammine rich ammoniacal liquor with an organic reagent; and (vi) recovering the cobalt from the cobalt III tetraammine rich ammoniacal liquor.
摘要翻译： 一种从含有阳离子和阴离子杂质的硫酸钴溶液中制备和纯化钴氧化物氢氧化物中间体的方法，包括以下连续步骤：（i）使硫酸钴溶液与有机试剂接触以从阳离子和阴离子杂质中提取铁和锌阳离子杂质 硫酸盐溶液; （ii）用有机试剂从硫酸溶液中提取钴，以产生基本上不含所有阴离子杂质的负载钴的有机相; （iii）用浓氨基碳酸铵溶液汽提负载钴的有机相，生成富含钴II氨的氨碳酸铵带状液; （iv）将氨酸铵条带液中的钴II氨氧化成钴III四胺; （v）用有机试剂从钴III四铵富氨液中提取大部分镍杂质; 和（vi）从钴III四铵富氨液中回收钴。
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公开(公告)号：US5174812A
公开(公告)日：1992-12-29
申请号：US439377
申请日：1990-05-14
申请人： Malcolm J. Price , John G. Reid
发明人： Malcolm J. Price , John G. Reid
CPC分类号： C01G53/003 , C01G51/12 , C22B3/0017 , C22B3/0021 , Y02P10/234
摘要： A process for the separation and recovery of nickel from an ammoniacal ammonium carbonate liquor containing nickel II ions and cobalt III ions by liquid-liquid extraction where ammoniacal ammonium carbonate solutions are the only aqueous phases involved in the process. The process includes the successive steps of: (a) oxidizing the majority of any cobalt II ammines in the ammoniacal liquid to cobalt III; (b) extracting nickel from the ammoniacal liquor with an organic reagent, which reagent may also contain a suitable modifying reagent, to form a nickel loaded organic phase and an ammoniacal ammonium carbonate phase containing cobalt; (c) stripping the nickel loaded organic phase characterized by contacting the organic phase with an ammoniacal ammonium carbonate solution to form a nickel loaded aqueous strip liquor.
摘要翻译： PCT No.PCT / AU88 / 00144 Sec。 371日期1990年5月14日 102（e）日期1990年5月14日PCT提交1988年5月19日PCT公布。 出版物WO88 / 09389 日本1990年12月1日。一种通过液 - 液萃取从包含镍II离子和钴III离子的氨基碳酸铵液体中分离和回收镍的方法，其中氨基碳酸铵溶液是涉及该方法的唯一水相。 该方法包括以下连续步骤：（a）将氨水中的大部分任何钴II氨氧化成钴III; （b）用有机试剂从氨液中提取镍，该试剂还可含有合适的改性剂，以形成负载镍的有机相和含有钴的氨基碳酸铵相; （c）剥离负载镍的有机相，其特征在于使有机相与氨基碳酸铵溶液接触以形成负载镍的水性带状液。
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