发明名称 |
METHOD FOR PREPARING METALLIC DIXHYDROXYBENZENEDISULFONATES |
摘要 |
The subject matter of this invention is a method for preparing metallic dihydroxybenzenedisulfonates, preferably from alkaline metals, from corresponding dihydroxybenzenedisulfonic acids. The method for preparing a metallic dihydroxybenzenedisulfonate according to the invention, from a corresponding dihydroxybenzenedisulfonic acid, is characterized by the fact that it includes the reaction of the dihydroxybenzenedisulfonic acid present in a sulfuric medium with an adequate quantity of a salt including a sulfate or hydrogenosulfate anion. |
申请公布号 |
WO2007144344(A1) |
申请公布日期 |
2007.12.21 |
申请号 |
WO2007EP55758 |
申请日期 |
2007.06.12 |
申请人 |
RHODIA RECHERCHES ET TECHNOLOGIES;DURY, MICHEL;BRES, HERVE |
发明人 |
DURY, MICHEL;BRES, HERVE |
分类号 |
C07C303/32;C07C303/22;C07C309/42 |
主分类号 |
C07C303/32 |
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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