Method for preparing 3-methyl-3-butene-1-alcohol

A technology of butene and methyl, which is applied in the field of preparation of 3-methyl-3-buten-1-ol, can solve the problems of high production cost and large investment, and achieve production cost reduction, low energy consumption, and conversion high rate effect
CN101993353AInactive Publication Date: 2011-03-30SHANGHAI CHENGJIE IND
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Patent Information

Authority / Receiving Office
CN · China
Current Assignee / Owner
SHANGHAI CHENGJIE IND
Publication Date
2011-03-30
Estimated Expiration
Not applicable · inactive patent

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Abstract

The invention discloses a method for preparing a 3-methyl-3-butene-1-alcohol. The method comprises the following step of: performing catalytic isomerization reaction on isoamylene alcohol under the actions of Pd / Al2O3 catalyst and hydrogen to obtain the 3-methyl-3-butene-1-alcohol. The preparation method can greatly reduce the energy consumption, and has the characteristics of low investment and low production cost; and the selectivity of a target product can reach 100 percent, and the conversion rate of the isoamylene alcohol and the purity of the product can reach over 98.5 percent.
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Description

Technical field

[0001] The invention specifically relates to a preparation method of 3-methyl-3-buten-1-ol. Background technique

[0002] 3-Methyl-3-buten-1-ol is a colorless and transparent liquid. In the traditional application field, 3-methyl-3-buten-1-ol is mainly used in the large-scale production of solvents, dyes, surface coatings, pigments, pesticides, pesticides, and citral in industry. The newly developed new use is the raw material for the production of a new generation of polycarboxylic acid series superplasticizers. The polycarboxylic acid high-efficiency water-reducing agent synthesized from the raw material has strong cement particle dispersion retention ability, so that the product has low dosage, high water reduction rate, good reinforcement effect, durability, non-corroding steel bar and environmentally friendly Etc.

[0003] The existing technology for producing 3-methyl-3-buten-1-ol is mainly prepared by Prins reaction of isobutene and formaldehyde in the pre...

Claims

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