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1. 发明授权

US4944935A Process for producing copper hydroxide 失效
标题翻译：生产氢氧化铜的方法
公开(公告)号：US4944935A
公开(公告)日：1990-07-31
申请号：US196839
申请日：1988-05-18
申请人： Bernd Langner , Rene-Holger Wilde
发明人： Bernd Langner , Rene-Holger Wilde
IPC分类号： A01N59/16 , C01G3/02
CPC分类号： C01G3/02 , C01P2006/60
摘要： A process of producing blue copper hydroxide, wherein copper metal is treated with an ammonium ion-containing aqueous solution with stirring and with a simultaneous introduction of an oxygen-containing gas and the reaction product is separated from the copper metal. A particulate, floatable copper (II) hydroxide is produced in that a material which contains copper metal is treated at a temperature of 0.degree. to 40.degree. with a solution which contains 0.1 to 10 g/l ammonium salt (calculated as NH.sub.4), 0 to 10 g/l ammonium hydroxide (calculated NH.sub.3) and, if desired, 0 to 5 g/l copper (II) salt and the resulting copper (II) hydroxide is separated.
摘要翻译：在搅拌下用含铵离子的水溶液处理铜金属并同时引入含氧气体并且将反应产物与铜金属分离的生产蓝铜氢氧化物的方法。制备颗粒状可漂浮的氢氧化铜（II），其中含有铜金属的材料在0至40℃的温度下用含有0.1至10g / l铵盐（以NH 4计算），0 至10g / l氢氧化铵（计算的NH 3），如果需要，分离为0至5g / l的铜（II）盐，并将所得的氢氧化铜（II）分离。

2. 发明授权

US4818280A Process for producing nonferrous metal powder 失效
标题翻译：生产有色金属粉末的方法
公开(公告)号：US4818280A
公开(公告)日：1989-04-04
申请号：US178717
申请日：1988-04-07
申请人： Bernd Langner , Artur May , Rene-Holger Wilde
发明人： Bernd Langner , Artur May , Rene-Holger Wilde
IPC分类号： B22F9/20 , B22F9/24
CPC分类号： B22F9/24 , B22F9/20
摘要： Nonferrous metal powder or nonferrous metal powder mixtures are made by reacting a metal compound in an aqueous medium with an aqueous sugar or starch solution with stirring and optionally at an elevated temperature and the precipitated metal powder is separated. The nonferrous metal oxide or hydroxide in a concentration between 20 and 400 g/l (calculated as metal) is treated in the aqueous medium at a pH-value above 3.2 and at a temperature between 20.degree. and 160.degree. C. and the virtually oxide free nonferrous metal powder which is precipitated is separated. Oxides or hydroxides of the metals Cu, Ag, Ni, Co, Sn, Pb, Sb, As, or Bi are used.
摘要翻译：有色金属粉末或有色金属粉末混合物通过使水性介质中的金属化合物与糖水溶液或淀粉溶液在搅拌下任选在高温下反应并分离析出的金属粉末来制备。浓度为20-400g / l（以金属计算）的有色金属氧化物或氢氧化物在水性介质中处于pH值高于3.2，温度在20至160℃之间，实际上是氧化物析出的游离有色金属粉末被分离。使用金属Cu，Ag，Ni，Co，Sn，Pb，Sb，As或Bi的氧化物或氢氧化物。

3. 发明授权

US5707420A Process for the production of a copper powder containing dispersoids 失效
标题翻译：用于生产含有分散质的铜粉的方法
公开(公告)号：US5707420A
公开(公告)日：1998-01-13
申请号：US534038
申请日：1995-09-26
申请人： Bernd E. Langner , Peter Stantke , Rene-Holger Wilde
发明人： Bernd E. Langner , Peter Stantke , Rene-Holger Wilde
IPC分类号： B22F9/22 , C22C1/10 , C22C32/00 , B22F9/26
CPC分类号： C22C32/0021 , C22C1/1026
摘要： The copper powder contains at least one substance, which is not soluble in copper, e.g. Al.sub.2 O.sub.3, TiO.sub.2, SiO.sub.2 or B.sub.2 O.sub.3. For the production of this copper powder, a surplus of copper metal granulate is mixed with an ammonium salt and/or ammonium hydroxide, together with a saline solution in an aqueous solution, while a gas containing oxygen is added, and at a pH-value of at least 4. A copper-containing precipitate is produced, which is separated and treated at a temperature in the range from 150.degree. to 500.degree. C. in a reducing atmosphere. During this process, Cu(OH).sub.2 and Cu-oxide are transformed into metallic copper powder, which contains the dispersoid. The dispersoid content of the copper powder is preferably in the range from 0.1 to 5% by weight.
摘要翻译：铜粉含有至少一种不溶于铜的物质，例如， Al2O3，TiO2，SiO2或B2O3。为了制造该铜粉，将多余的铜金属颗粒与铵盐和/或氢氧化铵一起与盐水溶液在水溶液中混合，同时加入含氧的气体，并且在pH值产生含铜沉淀物，其在还原气氛中在150℃至500℃的温度下分离和处理。在此过程中，Cu（OH）2和Cu氧化物转变成含有分散质的金属铜粉。铜粉末的分散质含量优选为0.1〜5重量％。

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