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US08410306B2 Method of producing a carboxylic alkyl ester 有权
羧酸烷基酯的制备方法

Method of producing a carboxylic alkyl ester
Abstract:
The present invention relates to a novel process for preparing alkyl polycarboxylates from an aqueous solution of an ammonium salt of the polycarboxylic acid by reactive distillation, and to a process for hydrogenating the alkyl carboxylates prepared in this way.
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