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公开(公告)号：US3953570A
公开(公告)日：1976-04-27
申请号：US537448
申请日：1974-12-30
申请人： Wolfgang Muller , Lothar Witzke
发明人： Wolfgang Muller , Lothar Witzke
IPC分类号： B09B3/00 , A62D3/33 , A62D101/40 , A62D101/45 , C01D3/06 , C01F11/18 , C02F1/04 , C02F1/62 , C02F1/66 , C02F9/00 , C02F11/00 , C23C8/40 , C01F1/00
CPC分类号： A62D3/33 , C01D3/06 , C01F11/188 , C02F1/048 , C02F1/66 , C23C8/40 , A62D2101/40 , A62D2101/45 , C01P2006/34 , C02F2101/18
摘要： This invention relates to a process for the treatment of the reaction mass produced during the joint elimination of barium-containing nitrite-/nitrate-bearing carburizing salt wastes and cyanide-/cyanate-bearing wastes by ignition of the dry mixture at elevated temperatures, comprising suspending the reaction mass in water and eitherA. neutralizing the alkaline suspension obtained with concentrated nitric acid to a pH value of 6, the feed velocity of the acid and conditions of agitation being so selected that the pH value of the suspension will at no time fall below pH 6, and separating the barium carbonate,OrB. freeing the alkaline suspension obtained from barium carbonate, and neutralizing the filtrate with concentrated nitric acid to a pH value of 7.2, the feed velocity of the acid and conditions of agitation being so selected that the pH value of the suspension will at no time fall below pH 7.2, and separating the precipitated sodium bicarbonate,Concentrating the clear solutions obtained according to (a) or (b) to a water content of 10 - 20% by weight, separating precipitated sodium chloride, and evaporating the residual solution to dryness.
摘要翻译： 本发明涉及一种处理在含钡亚硝酸盐/硝酸盐的渗碳盐废物和含氰化物/含氰酸盐的废物中通过在高温下点燃该混合物而产生的反应物质的方法，该方法包括 将反应物料悬浮在水中，然后将A.将用浓硝酸获得的碱性悬浮液中和至PH值为6，酸的进料速度和搅拌条件如此选择，以使悬浮液的pH值在任何时间 低于pH6，并分离碳酸钡或B.B。从碳酸钡中获得的碱性悬浮液，并将浓缩的硝酸将过滤器中和至PH值为7.2，酸的进料速度和搅拌条件为 选择悬浮液的pH值在任何时候都不会低于pH 7.2，并分离沉淀的碳酸氢钠，浓缩清除溶液 根据（A）或（B），以重量计10 - 20％的水分含量，分离氯化钠，并将剩余溶液蒸发干燥。
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公开(公告)号：US4162294A
公开(公告)日：1979-07-24
申请号：US945846
申请日：1978-09-26
申请人： Lothar Witzke , Wolfgang Muller
发明人： Lothar Witzke , Wolfgang Muller
CPC分类号： C22B7/001 , C22B3/0017 , C22B3/0068 , C22B3/0095 , C22B7/006 , C22B7/007 , Y02P10/214 , Y02P10/234 , Y02P10/236
摘要： A method for treating nonferrous metal hydroxide sludge waste to separate and recover the nonferrous metals therein wherein the waste is first mixed with an alkali hydroxide or carbonate, dried, and then roasted and the water-insoluble residue in the roasted material is treated with sulfuric acid to produce an acid-insoluble residue and a sulfuric acid solution containing copper, aluminum and chromium and thereafter, separating the copper from this solution by liquid-liquid extraction and thereafter, separating the aluminium, chromium, zinc and nickel from the remaining solution by separate liquid-liquid extraction steps.
摘要翻译： 一种用于处理有色金属氢氧化物污泥废物以分离和回收其中的有色金属的方法，其中废物首先与碱金属氢氧化物或碳酸盐混合，干燥，然后焙烧，并且用硫酸处理焙烧物中的水不溶性残留物 产生不溶于酸的不溶性残渣和含有铜，铝和铬的硫酸溶液，然后通过液 - 液萃取将铜从该溶液中分离出来，然后分离出剩余溶液中的铝，铬，锌和镍 液 - 液萃取步骤。
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公开(公告)号：US4151257A
公开(公告)日：1979-04-24
申请号：US869446
申请日：1978-01-16
申请人： Wolfgang Muller , Lothar Witzke
发明人： Wolfgang Muller , Lothar Witzke
CPC分类号： C22B7/007 , C22B3/0017 , C22B3/0068 , C22B3/42 , C22B3/44 , Y02P10/234
摘要： A method for recovering nonferrous metal values from hydroxide sludge wastes containing same by first chlorinating the aqueous waste to oxidize the chromium therein, separating the insoluble components therefrom and treating the resulting Cr(VI) solution in a fixed bed anion exchanger to separate the Cr(VI) from the solution, separating the copper from the aqueous solution by liquid-liquid extraction, separating the zinc from the copper-free solution by liquid-liquid extraction, precipitating and separating the aluminum in the form of hydroxide from the zinc-free solution and then separating the nickel from the aluminum-free solution by liquid-liquid extraction, and recovering the nonferrous metals from the respective solutions and precipitates by conventional procedures.
摘要翻译： 通过首先将含水废物氯化以氧化其中的铬，从其中分离不溶组分并在固定床阴离子交换器中处理所得到的Cr（VI）溶液以分离Cr（VI），从而从含有它们的氢氧化物污泥废物中回收有色金属值的方法， VI），通过液 - 液萃取将铜与水溶液分离，通过液 - 液萃取将锌从无铜溶液中分离出来，从无锌溶液中沉淀和分离氢氧化物形式的铝 然后通过液 - 液萃取将镍与无铝溶液分离，并通过常规方法从相应的溶液中回收有色金属和沉淀物。
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4.发明授权
公开(公告)号：US4282190A
公开(公告)日：1981-08-04
申请号：US92535
申请日：1979-11-08
申请人： Wolfgang Muller , Lothar Witzke
发明人： Wolfgang Muller , Lothar Witzke
摘要： A process for the removal of iron and aluminum values from acidic solutions thereof with zinc chloride wherein the solution is subjected to pressure hydrolysis to precipitate the iron and aluminum as the hydroxides or oxide hydrates, and then the precipitate is removed and washed. Zinc chlorides which are particularly free from iron and aluminum can be rapidly and easily obtained with this process.
摘要翻译： 用氯化锌从其酸性溶液中除去铁和铝的方法，其中溶液经受压力水解以使氢氧化物或氧化物水合物中的铁和铝沉淀，然后除去沉淀并洗涤。 通过该方法可以快速且容易地获得特别不含铁和铝的氯化锌。
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5.发明授权
公开(公告)号：US4242127A
公开(公告)日：1980-12-30
申请号：US77138
申请日：1979-09-19
申请人： Wolfgang Muller , Lothar Witzke
发明人： Wolfgang Muller , Lothar Witzke
IPC分类号： C22B3/08 , C22B3/20 , C22B3/26 , C22B3/38 , C22B3/40 , C22B7/00 , C22B15/08 , C22B19/22 , C22B23/04
CPC分类号： C22B3/0095 , C22B3/0021 , C22B3/0068 , C22B3/08 , C22B3/20 , C22B7/007 , Y02P10/234 , Y02P10/236
摘要： A method for processing a hydroxide sludge residue to separate and recover the nonferrous metal values therefrom including the steps of(1) concentrating the residue and acidifying and heating the concentrated residue to produce a solution containing the nonferrous metal values;(2) removing the copper from the solution by liquid-liquid extraction;(3) separating the chromium, aluminum, residual portions of iron, as well as the remaining calcium from the copper-free solution by high temperature pressure hydrolysis to obtain the metals as the hydrated oxides or basic sulfates;(4) removing zinc and nickel from the remaining solution by liquid-liquid extraction;(5) processing the individual nonferrous metal fractions to isolate and recover the metal values in a conventional manner.By using this process, the nonferrous metal values can be easily separated in a relatively high state of purity from the hydroxide sludge wastes.
摘要翻译： 一种处理氢氧化泥渣残渣以分离和回收有色金属值的方法，包括以下步骤：（1）浓缩残余物并酸化和加热浓缩残余物以产生含有有色金属值的溶液; （2）通过液 - 液萃取从溶液中除去铜; （3）通过高温压力水解将铬，铝，铁的剩余部分以及剩余的钙从无铜溶液中分离出来，得到作为水合氧化物或碱式硫酸盐的金属; （4）通过液 - 液萃取从剩余溶液中除去锌和镍; （5）处理各种有色金属部分以常规方式分离和回收金属值。 通过使用该方法，有机金属值可以容易地从氢氧化物污泥废物中以相对高的纯度分离。
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公开(公告)号：US3950490A
公开(公告)日：1976-04-13
申请号：US537449
申请日：1974-12-30
申请人： Wolfgang Muller , Lothar Witzke
发明人： Wolfgang Muller , Lothar Witzke
IPC分类号： B09B3/00 , C01D3/06 , C01F11/18 , C02F1/02 , C02F1/04 , C02F1/52 , C02F9/00 , C02F11/00 , C23C8/40 , C01F1/00
CPC分类号： C23C8/40 , C01D3/06 , C01F11/18 , C01F11/188 , C02F1/048 , C02F1/5236 , C01P2006/34 , C02F2101/18
摘要： This invention relates to a process for the treatment of the reaction mass produced during the joint elimination of barium-containing nitrite-/nitrate-bearing carburizing salt wastes and cyanide-/cyanate-bearing wastes by ignition of the dry mixture at elevated temperatures, comprising suspending the reaction mass in water and either (a) adding a water-soluble barium salt to the aqueous suspension in equimolar quantities, based upon carbonate ions, and separating precipitated barium carbonate, or (b) freeing the alkaline suspension from barium carbonate by filtration, reacting the filtrate with a water-soluble calcium salt, and separating precipitated calcium carbonate, concentrating the clear solutions obtained according to (a) or (b) to a water content of 10-20% by weight, separating precipitated sodium chloride, and evaporating the residual solution to dryness.
摘要翻译： 本发明涉及一种处理在含钡亚硝酸盐/硝酸盐的渗碳盐废物和含氰化物/含氰酸盐的废物中通过在高温下点燃该混合物而产生的反应物质的方法，该方法包括 将反应物料悬浮在水中，并且（a）以等摩尔量将水溶性钡盐以碳酸根离子的形式加入到水悬浮液中，并分离析出的碳酸钡，或（b）通过过滤将碱性悬浮液从碳酸钡中释出 使滤液与水溶性钙盐反应，分离析出的碳酸钙，将根据（a）或（b）得到的透明溶液浓缩至10-20重量％的水分离，分离沉淀的氯化钠，和 将残留的溶液蒸发至干燥。
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公开(公告)号：US4162296A
公开(公告)日：1979-07-24
申请号：US872101
申请日：1978-01-25
申请人： Wolfgang Muller , Lothar Witzke , Werner Gottfried
发明人： Wolfgang Muller , Lothar Witzke , Werner Gottfried
CPC分类号： C22B3/0095 , Y02P10/234
摘要： A method for extracting nickel from aqueous solutions thereof which contain large amounts of alkali metal ions by contacting the aqueous solution with an extraction agent comprising an organic solution of di-2-ethylhexyl phosphoric acid and naphthenic acid.
摘要翻译： 通过使水溶液与含有二-2-乙基己基磷酸和环烷酸的有机溶液的萃取剂接触，从含有大量碱金属离子的水溶液中提取镍的方法。
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公开(公告)号：US3953571A
公开(公告)日：1976-04-27
申请号：US563275
申请日：1975-03-28
申请人： Wolfgang Muller , Lothar Witzke
发明人： Wolfgang Muller , Lothar Witzke
CPC分类号： C23C8/40 , C01D3/06 , C01F11/18 , C01F11/188 , C02F1/048 , C02F1/5236 , C01P2006/34 , C02F2101/18
摘要： This invention relates to a process for the treatment of the reaction mass produced during the joint elimination of barium-containing nitrite-/nitrate-bearing carburizing salt wastes and cyanide-/cyanate-bearing wastes by ignition of the dry mixture at elevated temperatures, comprising suspending the reaction mass in water and either (a) adding a water-soluble barium salt to the aqueous suspension in equimolar quantities, based upon carbonate ions, and separating precipitated barium carbonate, or (b) freeing the alkaline suspension from barium carbonate by filtration, reacting the filtrate with a water-soluble calcium salt, and separating precipitated calcium carbonate, concentrating the clear solutions obtained according to (a) or (b) to a water content of 10 - 20% by weight, separating precipitated sodium chloride, and evaporating the residual solution to dryness.
摘要翻译： 本发明涉及一种处理在含钡亚硝酸盐/硝酸盐的渗碳盐废物和含氰化物/含氰酸盐的废物中通过在高温下点燃该混合物而产生的反应物质的方法，该方法包括 将反应物料悬浮在水中，并且（a）以等摩尔量将水溶性钡盐以碳酸根离子的形式加入到水悬浮液中，并分离析出的碳酸钡，或（b）通过过滤将碱性悬浮液从碳酸钡中释出 使滤液与水溶性钙盐反应，分离析出的碳酸钙，将根据（a）或（b）获得的澄清溶液浓缩至10-20重量％的水含量，分离沉淀的氯化钠，和 将残留的溶液蒸发至干燥。
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公开(公告)号：US3949052A
公开(公告)日：1976-04-06
申请号：US563255
申请日：1975-03-28
申请人： Wolfgang Muller , Lothar Witzke
发明人： Wolfgang Muller , Lothar Witzke
CPC分类号： C23C8/40 , C01D3/06 , C01D7/10 , C01F11/188 , C02F1/048 , C01P2006/34 , C02F2101/18
摘要： This invention relates to a process for the treatment of the reaction mass produced during the joint elimination of barium-containing nitrite-/nitrate-bearing carburizing salt wastes and cyanide-/cyanate-bearing wastes by ignition of the dry mixture at elevated temperatures, comprising suspending the reaction mass in water and eitherA. neutralizing the alkaline suspension obtained with concentrated nitric acid to a pH value of 6, the feed velocity of the acid and conditions of agitation being so selected that the pH value of the suspension will at no time fall below pH 6, and separating the barium carbonate, orB. freeing the alkaline suspension obtained from barium carbonate, and neutralizing the filtrate with concentrated nitric acid to a pH value of 7.2, the feed velocity of the acid and conditions of agitation being so selected that the pH value of the suspension will at no time fall below pH 7.2, and separating the precipitated sodium bicarbonate,Concentrating the clear solutions obtained according to (a) or (b) to a water content of 10-20% by weight, separating precipitated sodium chloride, and evaporating the residual solution to dryness.
摘要翻译： 本发明涉及一种处理在含钡亚硝酸盐/硝酸盐的渗碳盐废物和含氰化物/含氰酸盐的废物中通过在高温下点燃该混合物而产生的反应物质的方法，该方法包括 将反应物料悬浮在水中，然后将A.将用浓硝酸获得的碱性悬浮液中和至PH值为6，酸的进料速度和搅拌条件如此选择，以使悬浮液的pH值在任何时间 低于pH6，分离碳酸钡或B.从碳酸钡中脱除碱性悬浮液，并将浓度为硝酸的过滤器中和至PH值为7.2，酸的进料速度和搅拌条件为 选择悬浮液的pH值在任何时候都不会低于pH 7.2，并分离沉淀的碳酸氢钠，浓缩清除溶液 根据（A）或（B）按照重量计10-20％的水分含量，分离氯化钠，并将残留溶液蒸发干燥。
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公开(公告)号：US4659555A
公开(公告)日：1987-04-21
申请号：US727861
申请日：1985-04-26
申请人： Werner Gottfried , Ernst Mack , Lothar Witzke
发明人： Werner Gottfried , Ernst Mack , Lothar Witzke
IPC分类号： C01G3/00
CPC分类号： C01G3/00 , Y10S423/01 , Y10S423/02
摘要： The invention relates to a process for the preparation of basic copper carbonate by reacting copper salts with alkali carbonate in aqueous solution at elevated temperatures and with stirring and subsequently isolating the copper carbonate. In this process, a waste solution from copper etching processes which contains hydrochloric acid and sodium chloride, is stirred into a 5 to 15 weight percent solution of alkali carbonate heated to 40.degree. to 70.degree. C., the pH of the solution not being allowed to fall below 6.5, and the precipitated basic copper carbonate is separated from the aqueous solution in a known manner. A light green, basic copper carbonate is obtained, which is free of copper chloride and copper oxide.
摘要翻译： 本发明涉及一种通过使铜盐与碱金属碳酸盐在水溶液中在升高的温度和搅拌下反应制备碱式碳酸铜的方法，随后分离出碳酸铜。 在该方法中，将含有盐酸和氯化钠的铜蚀刻工艺的废溶液搅拌成加热至40℃至70℃的碱金属碳酸盐的5至15重量％溶液，不允许溶液的pH 降至6.5以下，沉淀的碱式碳酸铜以已知的方式与水溶液分离。 得到浅绿色的碱式碳酸铜，其不含氯化铜和氧化铜。
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