Method for producing carboxylic acid esters and the use thereof as plasticizers

Method for producing carboxylic acid esters and the use thereof as plasticizers

  • CN 105,683,147 A
  • Filed: 10/30/2014
  • Published: 06/15/2016
  • Est. Priority Date: 10/31/2013
  • Status: Active Application
First Claim
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1. prepare a method for carboxylicesters, wherein comprise at least one carboxylic acid and/or at least one carboxylic acid anhydride and comprise at least one alcohol R1-OH and/or at least one alcohol R2-[O-X]nThe reaction mixture of-OH reacts in the reactive system comprising one or more reactor, whereinR1It is selected from non-branching and branching C5-C13-Alliyl moieties and C5-C6-cycloalkyl structure part, wherein cycloalkyl structure part be not replaced or can by least one C1-C10-Alliyl moieties replaces,R2It is selected from non-branching C1-C13-Alliyl moieties and branching C3-C13-Alliyl moieties,X is non-branching C2-C5-alkylidene group or branching C3-C5-alkylidene group, andN has the value of 1,2 or 3,Prerequisite is that this reaction carries out in a case where:

  • -at least one be selected from organic sulfonic acid catalyzer exist under,-gas being inertia at reaction conditions is imported reactive system,-under the reaction mixture temperature of 125 DEG C to 240 DEG C, and-with alcohol R used1-OH and/or R2-[O-X]nThe azeotropic mixture form distillation of-OH removes the water formed between the reaction period at least partially,The alcohol R that wherein will remove by distilling1-OH and/or R2-[O-X]n-OH is Returning reacting system at least to a certain extent.

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