专利汇可以提供Preparation of copper dicarboxylate专利检索,专利查询,专利分析的服务。并且PURPOSE: To obtain the titled compound in high yield in separating the precipitate of the titled compound prepared by the double decomposition reaction of a dicarboxylic acid, an alkali metallic hydroxide and an inorganic copper salt from the aqueous layer, by using a polyacrylamide flocculant and precipitant as a separating assistant.
CONSTITUTION: A dicarboxylic acid is subjected to the double decomposition reaction with an alkali metallic hydroxide and an inorganic copper salt to prepare a copper dicarboxylate. The resultant prepcipitate is then separated from the aqueous layer of the reaction solution by a means, e.g. filtration. In the process, a polyacrylamide or a partial hydrolyzate thereof as a separating assistant is added to the reaction solution fater the formation of the precipitate to make the precipitate of the copper dicarboxylate in the form of a floc. The filtration velocity and the settling velocity of the precipitate are increased to separate the precipitate very easily in a short time, and the copper dicarboxylate, e.g. copper terephthalate, useful as an agricultural germicide, etc. is obtained with a high preparation efficiency.
COPYRIGHT: (C)1982,JPO&Japio,下面是Preparation of copper dicarboxylate专利的具体信息内容。
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