发明名称 |
PROCESS FOR ELECTROLYTIC PRODUCTION OF HIGHLY PURE ZINC OR ZINC COMPOUNDS FROM PRIMARY AND SECONDARY ZINC RAW MATERIALS |
摘要 |
<p>The invention relates to a process involving the following steps: a) performing leaching of the raw material with an acid aqueous solution to dissolve the zinc if said raw material is a solid; b) optionally performing solid-liquid separation; c) neutralizing the aqueous solution once the zinc-containing raw material is in liquid form; d) performing solid-liquid separation of the solution rich in zinc from the solids precipitated during the neutralization step; e) extracting the zinc using an acid organic solvent; f) purifying the organic solvent from the extraction step; g) re-extracting zinc from the organic solvent using an acid aqueous solution; h) recovering the zinc by electrolysis and/or crystallization and/or precipitation. <IMAGE></p> |
申请公布号 |
EP1258535(B1) |
申请公布日期 |
2003.08.06 |
申请号 |
EP20000979685 |
申请日期 |
2000.12.01 |
申请人 |
TECNICAS REUNIDAS, S.A. |
发明人 |
MARTIN SAN LORENZO, DANIEL;DIAZ NOGUEIRA, GUSTAVO;GARCIA LEON, MIGUEL ANGEL |
分类号 |
C22B3/26;C22B19/00;C25C1/16;(IPC1-7):C22B3/26 |
主分类号 |
C22B3/26 |
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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