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Ethylene glycol tertiary butyl ether and production technology thereof

A technology of ethylene glycol tert-butyl ether and alcohol tert-butyl ether, which is applied in the field of chemical product process production, can solve problems such as oversupply, and achieve low photochemical reactivity, low toxicity, and mild skin irritation

Inactive Publication Date: 2017-05-31
潍坊康顺化工有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In recent years, the apparent domestic demand for ethylene glycol butyl ether has been 160,000 to 180,000 tons per year, and nearly 80% of the demand depends on imports, but the overall supply situation is oversupplied

Method used

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  • Ethylene glycol tertiary butyl ether and production technology thereof
  • Ethylene glycol tertiary butyl ether and production technology thereof
  • Ethylene glycol tertiary butyl ether and production technology thereof

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Embodiment Construction

[0052] The present invention will be further described below with reference to specific embodiments.

[0053] The ethylene glycol tert-butyl ether described in the present invention is produced by the reaction of isobutylene and ethylene glycol in the mixed C4 under the action of a solid catalyst, wherein the reaction ratio of isobutylene and ethylene glycol is 3-4:0.8- 1.2. As a preferred solution, the reaction ratio of isobutylene and ethylene glycol is 3.7:1; this reaction is a reversible equilibrium exothermic process, and its reaction formula is as follows:

[0054]

[0055] The selectivity of the reaction is high, and other carbon four components hardly participate in the reaction, but the following side reactions occur at the same time as the main reaction:

[0056]

[0057] The technological process of ethylene glycol tert-butyl ether production technique of the present invention comprises:

[0058] A, reaction unit, comprises the following steps:

[0059] A1, ...

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PUM

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Abstract

The invention relates to ethylene glycol tertiary butyl ether and a production technology thereof and belongs to the field of process production of chemical products. The ethylene glycol tertiary butyl ether is generated by reaction between isobutene and glycol in mixed carbon4 under action of solid catalyst. A technological process of the ethylene glycol tertiary butyl ether comprises a reaction unit and a separation unit. The ethylene glycol tertiary butyl ether prepared through the technology disclosed by the invention has the advantages of extremely-low odor, low toxicity, low photochemical reaction, moderate skin irritation, good water intermiscibility, good latex coating dispersion stability, intermiscibility with most resin and organic solvents, good hydrophilia and wide application in the fields of coating, printing ink, cleaning agent, fiber wetting agent, plasticizer, organic synthesis intermediate, paint remover and the like.

Description

technical field [0001] The invention relates to ethylene glycol tert-butyl ether and a production process thereof, belonging to the field of chemical product process production. Background technique [0002] Ethylene glycol ethers are important derivatives of ethylene oxide. It has been in production for nearly 90 years since it was put into production in 1926. Because of its excellent performance, it is widely used as a solvent, Jet fuel anti-icing agents, brake fluids, chemical intermediates. [0003] In China, as many as 85% of alcohol ether and alcohol ether ester solvents are used in coatings (including resins), among which the amount represented by ethylene glycol methyl ether, ethylene glycol ethyl ether, and ethylene glycol butyl ether ranks first . However, in recent years, with the strengthening of people's health awareness and the increasingly stringent environmental protection regulations, more and more problems have been exposed in the safety and environmental...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C07C41/06C07C43/13
CPCC07C41/06C07C41/34C07C41/42C07C43/13
Inventor 陈英刚张广鹏
Owner 潍坊康顺化工有限公司
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