A kind of method for preparing dibutoxymethane with dimethoxymethane and n-butanol as raw material

A technology for dimethoxymethane and dibutoxymethane, which is applied in the field of preparing dibutoxymethane, can solve the problems of difficult product separation, short reaction time and high energy consumption, and achieves good application prospects, high selectivity, The effect of simple process operation
CN105801386BInactive Publication Date: 2018-06-22SHENYANG INSTITUTE OF CHEMICAL TECHNOLOGY
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
SHENYANG INSTITUTE OF CHEMICAL TECHNOLOGY
Publication Date
2018-06-22
Estimated Expiration
Not applicable · inactive patent

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Abstract

A method for preparing dibutoxymethane using dimethoxymethane and n-butanol as raw materials, relates to a method for preparing dibutoxymethane, the method includes the following process: using dimethoxymethane and n-butanol as raw materials , using liquid acid and supported liquid acid as catalysts, reacting at a reaction temperature of 0-160°C and a reaction pressure of 0.1-10.0 MPa to generate dibutoxymethane with high selectivity; the resin catalyst is KAD302 containing sulfonic acid functional groups, One or more resin catalysts such as KC107, NKC‑9, DA‑330, D009B, Amberlyst‑15, D072H; the reaction temperature is 0-160°C, and the reaction pressure is 0.1-10.0 MPa. The product of the method of the invention is relatively single, the selectivity is high, the required raw materials are cheap and easy to obtain, the whole process is simple to operate, no chemical substances polluting the environment are produced, and it belongs to an environmentally friendly process path.
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Description

technical field

[0001] The invention relates to a method for preparing dibutoxymethane, in particular to a method for preparing dibutoxymethane by using dimethoxymethane and n-butanol as raw materials. Background technique

[0002] Dibutoxymethane (also known as butyral) is an important chemical raw material, English name: dibutoxymethane, structural formula: CH 3 (CH 2 ) 3 OCH 2 O(CH 2 ) 3 CH 3 . Dibutoxymethane is a colorless transparent liquid with a mild, fruity smell. Boiling point 180 ℃, density 0.84 g / cm 3 , flash point 60 ℃. Slightly soluble in water, stable in nature, need to avoid contact with oxidants, thermal decomposition temperature is 300 ℃. Its application is mainly divided into two categories: one is used as a solvent, and the other is used as a reaction raw material. As a solvent, dibutoxymethane is an excellent solvent for core aggregates and binders. As a fuel additive, it can effectively reduce the emission of particles during the combustion ...

Claims

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