发明名称 |
VERFAHREN ZUM AUSFÄLLEN VON EISEN AUS EINER ZINKSULFATLÖSUNG ALS HÄMATIT |
摘要 |
<p>This invention relates to a method for the removal of iron as hematite from a zinc sulphate solution in atmospheric conditions during the electrolytic preparation of zinc. According to the method, the pH of the iron-containing solution is adjusted to a value of at least 2.7, oxygen-containing gas is fed into the solution and part of the hematite thus formed is recirculated to the precipitation stage.</p> |
申请公布号 |
DE60208919(D1) |
申请公布日期 |
2006.04.13 |
申请号 |
DE2002608919 |
申请日期 |
2002.12.03 |
申请人 |
OUTOKUMPU TECHNOLOGY OY, ESPOO |
发明人 |
LAHTINEN, MARKO;LEHTINEN, LEENA;TAKALA, HEIKKI |
分类号 |
C01G49/06;C22B3/44;C01G9/06;C22B19/00;C22B23/00 |
主分类号 |
C01G49/06 |
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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