申请人:Zirconium Technology Corporation
公开号:US05182408A1
公开(公告)日:1993-01-26
The present invention comprises reacting ammonium, sodium or potassium hydroxide or water soluble amines or amine derivatives with alpha-hydroxy carboxylic acid to prepare a neutral solution of the corresponding alpha-hydroxy carboxylic salt in a stoichiometric reaction. The alkali metal, ammonium, amine or amine derivative, alpha-hydroxy carboxylic acid salt is then added to solutions of zirconium which may be zirconium oxychloride, zirconium hydroxy chloride, zirconium acetate and the like, ammonia, water soluble amines or amine derivatives, diisopropylamine or a mixture of two or more of these bases, as well as soluble carbonates and/or bicarbonates of ammonium and alkali metals such as sodium and potassium, while mixing the solutions. The procedure produces a mildly acidic or basic solution of the zirconium alpha-hydroxy carboxylic chelate.
本发明包括将氨、钠或钾氢氧化物或水溶性胺或胺衍生物与α-羟基羧酸反应,以制备相应的α-羟基羧酸盐的化学计量中性溶液。然后将碱金属、铵、胺或胺衍生物、α-羟基羧酸盐加入锆的溶液中,该溶液可以是氧氯化锆、氢氧氯化锆、醋酸锆等,也可以是氨、水溶性胺或胺衍生物、二异丙基胺或两种或两种以上的这些碱的可溶性碳酸盐和/或氢碳酸盐,同时混合这些溶液。该过程产生锆α-羟基羧酸螯合物的微酸性或微碱性溶液。