Mesoporous molecular sieve supported composite metal oxide alcoholysis catalyst, and preparation method of alcoholysis catalyst

A mesoporous molecular sieve, composite metal technology, applied in molecular sieve catalysts, physical/chemical process catalysts, chemical instruments and methods, etc., can solve the problems of polluted air, inability to meet high purity, high yield, low product purity, etc., to reduce Occurrence of by-products, prevention of changes, easy separation effect

Inactive Publication Date: 2013-09-11
安徽生力农化有限公司
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  • Abstract
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  • Claims
  • Application Information

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Problems solved by technology

But by comparison, the highest yield in these methods is 75.9%, a large amount of by-product monochloroethane is produced, polluted the air, and the product purity is low, and the purity of the product after vacuum distillation is only 96.8%, which cannot meet the requirements of high purity, The need for high yield is currently reported in the literature as a homogeneous catalyst-free reaction, and there is no report on the preparation of triethyl phosphate by heterogeneous catalysis

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  • Mesoporous molecular sieve supported composite metal oxide alcoholysis catalyst, and preparation method of alcoholysis catalyst
  • Mesoporous molecular sieve supported composite metal oxide alcoholysis catalyst, and preparation method of alcoholysis catalyst

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Embodiment 1

[0017] 1. In a water bath at 35°C, take a 500ml three-neck bottle and add 10ml of deionized water, and dissolve 0.0125ml of surfactant EO in it 20 PO 70 EO 20 , vigorously stirred and added 0.075ml tetraethyl orthosilicate and 0.45ml hydrochloric acid, continued to stir vigorously for more than 24h, put it into an ethylene bottle for crystallization for 48hr, filtered, washed and dried, extracted with acetone for 5hr, and calcined at 550℃ for 6 The template agent orthosilicate ethyl was removed within hours to obtain white powder SBA-15. Take 0.1mol / L alkali metal acetate, 0.5mol / L aluminum acetate, 0.3mol / L magnesium acetate, 0.17mol / L titanium acetate and 0.03mol / L rare earth metal acetate to dissolve according to the corresponding mole fraction, add the prepared SBA-15 mesoporous molecular sieve is subjected to surface adsorption, calcined at 900°C for 2 hours, and cooled in nitrogen or inert gas to obtain SBA-15 mesoporous molecular sieve-loaded composite metal oxi...

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Abstract

The invention discloses a mesoporous molecular sieve supported composite metal oxide alcoholysis catalyst, and a preparation method of the alcoholysis catalyst. A mixed solution of alkali metal acetates, aluminium acetate, magnesium acetate, titanium acetate and rare earth metal acetates is physically adsorbed on a mesoporous molecular sieve SBA-15, and composite metal oxides are supported on the mesoporous molecular sieve SBA-15 after a calcining process. By adding the catalyst, the synthetic yield and purity of triethyl phosphate are extremely raised, and the catalyst is easy to separate and repeatedly usable.

Description

technical field [0001] The invention relates to the field of organic reaction catalysts, in particular to an alcoholysis catalyst loaded with mesoporous molecular sieves and a composite metal oxide and a preparation method thereof. Background technique [0002] Triethyl phosphate is an important class of high boiling point solvents, plasticizers for rubber and plastics, chemical reaction catalysts and pesticide raw materials, such as triethyl phosphate is a solvent for cellulose nitrate and cellulose acetate, and keeps organic peroxidation solvents for catalyst activity, polyester resins, peroxide diluents for curing catalysts for epoxy resins, vinyl fluoride dispersants, chlorine-based insecticides and stabilizers, stabilizers for phenolic resins, and xylenol formaldehyde resins Curing agent, and plasticizer of phenolic resin, vinyl chloride, vinyl acetate polymer, flame retardant of polyester resin. The most economical synthesis method of triethyl phosphate is to prepar...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01J29/035C07F9/11
CPCY02P20/54
Inventor 丁省胡林汪炳所王魁江王娟张雅琴杨献从鲍功敏史小恩
Owner 安徽生力农化有限公司
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