发明名称 |
Förfarande för framställning av metallisk koppar från en kopparnitratl ösning i vatten |
摘要 |
<p>A method for producing copper from a solution of copper nitrate comprises converting at least some of this copper nitrate to Cu (NH3)4 (NO3)2 by the addition of ammonia, treating this solution with SO2 to give a crystalline precipitate which is then treated with H2SO4 to form metallic copper. Alternatively air or oxygen may be used instead of H2SO4 to give a mixture of copper and its oxide from which the latter may be removed by treatment with H2SO4. A further alternative comprises heating the crystalline precipitate in the absence of oxygen to form a mixture of Cu and its oxide and sulphide. This mixture is then heated in a reducing atmosphere to produce copper metal.</p> |
申请公布号 |
FI44717(C) |
申请公布日期 |
1971.12.10 |
申请号 |
FI19650001507 |
申请日期 |
1965.06.23 |
申请人 |
ANSOR CORPORATION, |
发明人 |
CHUPUNGOO,JR., ESTANISLAO JAVIER;QUINTOS III,JOAQUIN ASPILLERA;GODINEZ,WILLIAM SAIZ |
分类号 |
C22B15/00;(IPC1-7):C22B15/10 |
主分类号 |
C22B15/00 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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