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Diol tertiary butyl ether production method

A technology of alcohol tert-butyl ether and production method, which is applied in the direction of preparation of ether, addition of unsaturated compounds to prepare ether, etc., can solve the problem that saturated alcohol ether cannot be invested in large-scale production equipment, and achieve high yield and wide applicability , the effect of high conversion rate

Inactive Publication Date: 2015-11-18
ZHUHAI FEIYANG NOVEL MATERIALS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The present invention aims at the problem that the existing production method of saturated alcohol ether cannot be produced on a large scale or the equipment investment is large and is only suitable for the production of methyl tert-butyl ether, and provides a kind of dibutyl ether with high conversion rate, no side reaction and wide applicability. The production method of polyalcohol tert-butyl ether

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0016] This embodiment provides a method for producing tert-butyl glycol ether. Using liquefied petroleum gas and ethylene glycol as raw materials, and the mass percentage concentration of isobutylene in the liquefied petroleum gas is 60%, the addition reaction is carried out in a tubular reactor to synthesize ethylene glycol mono-tert-butyl ether and ethylenedioxide Alcohol bis-tert-butyl ether.

[0017] The tube-and-tube reactor used is equipped with a stainless steel tube with a length of 2.5 meters and a nominal diameter of 50mm. The material is 316L. The outside of the tube is a jacket. The jacket contains circulating hot water for heating to provide the reaction system. Heat source.

[0018] Fill the strong acid cation exchange resin (D-005 cation exchange resin catalyst produced by Dandong Mingzhu Special Resin Co., Ltd.) into the tubular reactor and reserve a space for thermal expansion. After the main catalyst is filled, the tubular The reactor is fixed. spare.

[0019] ...

Embodiment 2

[0021] This embodiment provides a method for producing tert-butyl glycol ether. Using liquefied petroleum gas and propylene glycol as raw materials, and the mass percentage concentration of isobutylene in the liquefied petroleum gas is 60%, the addition reaction is carried out in a tubular reactor to synthesize propylene glycol mono-tert-butyl ether and propylene glycol di-tert-butyl ether .

[0022] The tube-and-tube reactor used is equipped with a stainless steel tube with a length of 2.5 meters and a nominal diameter of 50mm. The material is 316L. The outside of the tube is a jacket. The jacket contains circulating hot water for heating to provide the reaction system. Heat source.

[0023] Fill the strong acid cation exchange resin (D-005 cation exchange resin catalyst produced by Dandong Mingzhu Special Resin Co., Ltd.) into the tubular reactor and reserve a space for thermal expansion. After the main catalyst is filled, the tubular The reactor is fixed. spare.

[0024] The l...

Embodiment 3

[0026] This embodiment provides a method for producing tert-butyl glycol ether. Using liquefied petroleum gas and diethylene glycol as raw materials, and the mass percentage concentration of isobutylene in the liquefied petroleum gas is 60%, the addition reaction is carried out in the tubular reactor to synthesize diethylene glycol mono-tert-butyl ether and Diethylene glycol bis-tert-butyl ether.

[0027] The tube-and-tube reactor used is equipped with a 2.5-meter-long stainless steel tube with a nominal diameter of 50mm. The material is 316L. The outside of the tube is a jacket. The jacket contains circulating hot water for heating to provide the reaction system. Heat source.

[0028] Fill the strong acid cation exchange resin (D-005 cation exchange resin catalyst produced by Dandong Mingzhu Special Resin Co., Ltd.) into the tubular reactor and reserve a space for thermal expansion. After the main catalyst is filled, the tubular The reactor is fixed. spare.

[0029] The metering...

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Abstract

The present invention relates to the technical field of organic synthesis, in particular to a diol tertiary butyl ether production method. According to the diol tertiary butyl ether production method, saturated diol and liquefied petroleum gas are used as raw materials; and by virtue of cooperation of a certain reaction temperature, pressure and space velocity and by use of a special tubular reactor to carry out addition reaction, the production method is high in conversion rate of the saturated diol, high in reaction selectivity, free of side reaction, is green and environmentally friendly, wide in applicability, and high in yield.

Description

Technical field [0001] The invention relates to the technical field of organic synthesis, in particular to a production method of diol tert-butyl ether. Background technique [0002] Glycol tert-butyl ether has good solubility, can be miscible with most organic solvents, and can also dissolve amino resins, nitro resins, alkyd resins, acrylic resins and other resins. It is widely used in water-based coatings and inks. It acts as a dispersant, emulsifier, rheological agent, and cosolvent in the dispersion system to improve the drying speed, flatness, brightness and adhesion fastness of water-based coatings and inks. Due to its tert-butyl structure, it has high photochemical stability and safety, and has broad market prospects. [0003] There are three main production methods for saturated alcohol ethers. The first is the condensation of alcohol. Saturated alcohol is used as a raw material, and sulfuric acid is used as a catalyst to carry out intermolecular dehydration to produce et...

Claims

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Application Information

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IPC IPC(8): C07C41/06C07C43/13C07C43/04
CPCC07C41/06C07C43/13C07C43/04
Inventor 傅兵彭威何国殿蓝俊杰蒋兵彭琦
Owner ZHUHAI FEIYANG NOVEL MATERIALS