发明名称 |
Process for preparation of stable aqueous solutions of zirconium chelates |
摘要 |
Aqueous solutions of zirconium chelates are prepared by combining an alpha-hydroxycarboxylic acid salt with a solution of a zirconium compound. That preparation first involves formulating an alpha-hydroxycarboxylic acid salt through a stoichiometric reaction between an alpha-hydroxycarboxylic acids and a base. The stoichiometric reaction product consists of an approximately neutral solution of a corresponding alpha-hydroxycarboxylic acid salt. The alpha-hydroxycarboxylic acid salt is then added to a solution of a zirconium compound to produce a mildly acidic or basic solution of the corresponding zirconium alpha-hydroxycarboxylic chelate. Alternatively, the alpha-hydroxycarboxylic acid salt may be pre-prepared and added in solid or liquid form to the zirconium compound before the zirconium compound is placed in solution so that the corresponding zirconium alpha-hydroxycarboxylic chelate is produced.
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申请公布号 |
US5466846(A) |
申请公布日期 |
1995.11.14 |
申请号 |
US19940340661 |
申请日期 |
1994.11.16 |
申请人 |
BENCHMARK RESEARCH AND TECHNOLOGY, INC. |
发明人 |
SHARIF, SHARIF |
分类号 |
C07F7/00;(IPC1-7):C07F7/00 |
主分类号 |
C07F7/00 |
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