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    • 10. 发明申请
    • STABLE AQUEOUS SOLUTIONS COMPRISING TITANIUM AND ZINC AND PROCESS THEREWITH
    • 包含钛和锌的稳定的水溶液及其过程
    • US20030204043A1
    • 2003-10-30
    • US10132347
    • 2002-04-25
    • Donald Edward PutzigEdward Francis McBrideClive Alexander HamiltonAndrea Clare Smith
    • C08G063/02
    • C08G63/82B01J31/04B01J31/1805B01J31/223B01J31/26B01J2231/14B01J2231/40B01J2531/46B01J2531/96C08G63/826C08G63/83C08G63/85
    • A process that can be used as catalyst in esterification, transesterification or polycondensation is disclosed, which comprises a stable solution comprising (a) titanium in the form of a titanium null-hydroxycarboxylic acid or its salt, (b) a C1-C6 carboxylic acid, and (c) zinc in the form of a water-soluble zinc salt, and (d) water. Also disclosed is an esterification, transesterification or polycondensation process, which comprises contacting, in the presence of the solution process, an organic acid or its ester or its salt with an alcohol, optionally in the presence of a phosphorus compound, an organic or inorganic toning agent such as cobalt acetate, or combinations thereof. The process can also comprise combining aqueous solutions of a titanium null-hydroxycarboxylic acid or its salt and a zinc salt in an alcohol to produce an alcohol solution contacting the alcohol solution with a mixture comprising organic acid or its ester or its salt and a second alcohol, or comprise combining an aqueous solutions of a titanium null-hydroxycarboxylic acid or its salt and aqueous solution of a zinc salt with the mixture.
    • 公开了可用作酯化,酯交换或缩聚催化剂的方法,其包括稳定的溶液,其包含(a)钛α-羟基羧酸或其盐形式的钛,(b)C1-C6羧酸 ,(c)水溶性锌盐形式的锌,(d)水。 还公开了酯化,酯交换或缩聚方法,其包括在溶液方法存在下,有机酸或其酯或其盐与醇,任选在磷化合物,有机或无机调色剂 例如乙酸钴或其组合。 该方法还可以包括将钛α-羟基羧酸或其盐的水溶液与锌盐的醇溶液混合,以产生与醇溶液接触的醇溶液与包含有机酸或其酯或其盐的混合物和第二醇 或者包括将钛α-羟基羧酸或其盐的水溶液与锌盐的水溶液与混合物组合。