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A kind of reaction system and method thereof for synthesizing isobutyl isobutyrate from isobutanol

A technology of isobutyl isobutyrate and reaction system, applied in the preparation of carboxylate, chemical instruments and methods, preparation of organic compounds, etc., can solve the problem of low catalyst activity, achieve high selectivity and high conversion rate of raw materials , the effect of improving the reaction efficiency

Active Publication Date: 2015-09-16
连云港中港精细化工有限公司
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Problems solved by technology

Patent CN101711983 discloses a catalyst for synthesizing isobutyl isobutyrate by isobutanol disproportionation, but the catalyst activity is not high, generally making isobutyl isobutyrate yield 70-80%, and generating about 2% Isobutyraldehyde by-product

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  • A kind of reaction system and method thereof for synthesizing isobutyl isobutyrate from isobutanol
  • A kind of reaction system and method thereof for synthesizing isobutyl isobutyrate from isobutanol

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Embodiment Construction

[0010] Such as figure 1 Shown, a kind of reaction system that is used for the synthetic isobutyl isobutyrate of isobutanol comprises one-stage reaction system and two-stage reaction system, and described one-stage reaction system comprises one section feed pump 1, enters with one section feed pump 1 One-stage heat exchanger 2 connected with feed pipeline, one-stage preheater 3 connected with one-stage heat exchanger 2 feed pipe, one-stage fixed-bed reactor 4 connected with one-stage preheater 3 pipe, gas-liquid separator 5, one-stage Cooler 6 and one section of crude product tank 7, the first section of fixed bed reactor 4 discharge pipelines are connected to one section of heat exchanger 2, the one section of heat exchanger 2 discharge pipelines are connected to gas-liquid separator 5, and gas-liquid separator 5 The liquid outlet pipeline at the bottom is connected to a cooler 6, and the cooler 6 is connected to a crude product tank 7; The second-stage preheater 9 connected ...

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Abstract

The invention relates to a reaction system and method for synthesizing isobutyl isobutyrate by utilizing isobutanol. The reaction system comprises a first-section reaction system and a second-section reaction system, wherein the first section reaction system comprises a first-section feeding pump, a first-section heat exchanger which is connected with the first-section feeding pump through a feeding pipeline, a first-section preheater which is connected with the first-section heat exchanger through a feeding pipeline, a first-section fixed bed reactor which is connected with the first-section preheater through a pipeline, a gas-liquid separator, a first section cooler and a first section crude product tank, wherein the first-section fixed bed reactor is connected with the first-section heat exchanger through a discharging pipeline, the first-section heat exchanger is connected with the gas-liquid separator through a discharging pipeline, a liquid outlet at the bottom of the gas-liquid separator is connected with the first-section cooler through a pipeline, and the first-section cooler is connected with the first-section crude product tank. By adopting the reaction system, the yield of the isobutyl isobutyrate is high, and the yield of byproduct isobutanol is low.

Description

technical field [0001] The invention belongs to the technical field of production of fine chemical products, in particular to a two-stage reaction system and method for synthesizing isobutyl isobutyrate from isobutanol. Background technique [0002] Isobutyl isobutyrate is a safe and environmentally friendly fine chemical. Its most common synthesis method is the esterification method of isobutyric acid and isobutanol as raw materials, and the condensation method of isobutyraldehyde as raw material. , and the disproportionation method using isobutanol as raw material. Patent CN101711983 discloses a catalyst for synthesizing isobutyl isobutyrate by isobutanol disproportionation, but the catalyst activity is not high, generally making isobutyl isobutyrate yield 70-80%, and generating about 2% Isobutyraldehyde by-product. Contents of the invention [0003] The present invention is just for overcoming the deficiency of above-mentioned synthesis catalyst, provides a kind of t...

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C07C69/24C07C67/40B01J23/63B01J23/83
CPCC07C45/29C07C67/40C07C67/44C07C69/24C07C47/02
Inventor 王恒秀范旭崇明本陈维斌张千卢荣群
Owner 连云港中港精细化工有限公司
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