120-55-8Relevant articles and documents
Greenberg,Perlin
, p. 195,196-202 (1974)
A solid acid catalysis of the preparation process of benzoic acid ester plasticizer (by machine translation)
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Paragraph 0036; 0037, (2017/07/05)
The present invention discloses a solid acidify catalytic benzoic acid ester plasticizer of the preparation process, the preparation method is: to benzoic acid and alcohol as the raw material, with agent and catalyst in direct reaction to produce benzoic acid ester compound; catalytic system of the invention compared with the sulfuric acid, toluene sulfonic acid and sulfuric acid to sodium has a better catalytic activity, so the catalyst less consumption, in addition, because of the use of the is supported on a solid acid catalyst, after the reaction directly filtering can realize the separation of the catalyst, and the catalyst can be reused, makes the production process more simple, and can be basically prevent the generation of waste water, makes the production process more green environmental protection. (by machine translation)
High-efficiency production method of diethylene glycol dibenzoate
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Paragraph 0032; 0040-0041, (2017/03/17)
The invention discloses a method for efficiently producing diethylene glycol dibenzoate. Process flow of the method is as follows: weighing benzoic acid and diglycol, as well as a catalyst sodium hydrogen sulfate in proportion, and adding into a reaction kettle to carry out alcoholization; pumping into a neutralizing kettle, adding NaOH aqueous liquor for neutralizing, washing with water after layering, discoloring after layering, and then washing with water, drying, filtering and inspecting to obtain finished products. The invention discloses a method for producing a 4.5-tonnage high-quality plasticizer or DEDB (Diethylene Glycol Dibenzoate) in a reaction kettle with capacity of 5.5 cubic meters by taking sodium hydrogen sulfate as the catalyst.
