| 发明名称 |
IRON SEPARATION PROCESS FROM ELECTROLYTES ACID AQUEOUS SOLUTIONS |
| 摘要 |
<p>Citric acid partial esters corresponding to the following general formula <IMAGE> (I) in which R1, R2 and R3 represent hydrogen or a straight-chain or branched C4-C20 alkyl radical or a metal atom, with the proviso that at least one but at most two of the substituents R1, R2 and R3 represent such an alkyl radical, or mixtures of the citric acid partial esters corresponding to general formula (I), are used for the extraction of iron from aqueous solutions.</p> |
| 申请公布号 |
RO100633(A2) |
申请公布日期 |
1991.09.04 |
| 申请号 |
RO19880132302 |
申请日期 |
1988.02.22 |
| 申请人 |
HENKEL KOMANDITGESELLSCHAFT AUF AKTIEN,DUSSELDORF,DE |
发明人 |
WILI BUCHMEIER,DE;RALF KEHL,DE;WERNER SCHWAB,DE |
| 分类号 |
B01D11/04;C01G49/00;C22B3/20;C22B3/26;C22B3/32;C22B19/20;(IPC1-7):C22B3/00 |
主分类号 |
B01D11/04 |
| 代理机构 |
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