发明名称 |
Process for the preparation of salts of iron amino and hydroxy carboxylic acid complexes. |
摘要 |
<p>A process of preparing iron chelates of amino and hydroxy carboxylic acids, comprising reacting an oxide of iron with an amino or hydroxy carboxylic acid and a base in the presence of ferrous ion or metallic iron as a catalyst. Additional base is added to the resulting chelant and oxidation may be carried out to convert any ferrous ion to ferric.</p> |
申请公布号 |
EP0471583(A1) |
申请公布日期 |
1992.02.19 |
申请号 |
EP19910307566 |
申请日期 |
1991.08.15 |
申请人 |
W.R. GRACE & CO.-CONN. |
发明人 |
THUNBERG, JON C.;VANKOUWENBERG, STEVEN P. |
分类号 |
C07C51/41;C07C227/16;C07C229/76 |
主分类号 |
C07C51/41 |
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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