发明名称 |
METHOD OF ZINC EXTRACTION FROM ACID SULFATE SOLUTIONS |
摘要 |
<p>FIELD: zinc hydrometallurgy. SUBSTANCE: method involves refining acid sulfate solution from solid suspensions and impurities by addition of ferric (3+) sulfate at pH = 5.5-6.6 and the following zinc precipitation at pH = 8.5-9.0. Then zinc precipitate is condensed, filtered and heated in autoclave up to 130-170 C followed by filtration and drying. Method can be used at underground leaching and for sewage treatment. EFFECT: improved method of extraction. 1 dwg, 3 tbl</p> |
申请公布号 |
RU2088679(C1) |
申请公布日期 |
1997.08.27 |
申请号 |
RU19950104769 |
申请日期 |
1995.04.03 |
申请人 |
SEVERO-KAVKAZSKIJ GOSUDARSTVENNYJ TEKHNOLOGICHESKIJ UNIVERSITET |
发明人 |
BARATOV LEV G;KHULELIDZE KAZBEK K;ROSTOVANOV SERGEJ E;KONDRATEV YURIJ I;KADRZHANOV ZHANAS B |
分类号 |
C22B3/44;C22B19/00;(IPC1-7):C22B3/44 |
主分类号 |
C22B3/44 |
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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