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Continuous, safe and efficient system device for producing propargyl alcohol and preparation process thereof

A system device, the technology of propynyl alcohol, applied in the field of medicine and chemical industry, can solve the problems of low safety and low production efficiency, and achieve the effects of improving safety, easy separation and high yield

Inactive Publication Date: 2019-03-12
北京笃敬科技有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] The purpose of the present invention aims at the deficiencies of the prior art, and proposes a system device for the continuous, safe and efficient production of propynyl alcohol and its preparation process, which solves the problems of low safety and low production efficiency of the existing propynyl alcohol production technology

Method used

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  • Continuous, safe and efficient system device for producing propargyl alcohol and preparation process thereof

Examples

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preparation example Construction

[0013] The preparation process of using this system device to produce propynyl alcohol is as follows:

[0014] (1) Enter N in the system 2 Perform purging; (2) add a certain amount of catalyst into the propynyl alcohol preparation reactor 3 and the catalyst activation reactor 5 respectively, both of the propynyl alcohol preparation reactor 3 and the catalyst activation reactor 5 are slurry bed reactors. The catalyst can be one of supported copper oxide and basic copper carbonate; (3) add a certain amount of paraformaldehyde to the propynyl alcohol preparation reactor 3 and the catalyst activation reactor 5 respectively; (4) add the organic solvent The organic solvent in the storage tank 1 is added in the propynyl alcohol preparation reactor 3 and the catalyst activation reactor 5; the organic solvent can be one or more in ethylene glycol, γ-butyrolactone, NMP, etc., including but not Limited to these organic solvents; (5) Pass acetylene into propynyl alcohol preparation react...

Embodiment 1

[0015] Example 1: Magnesium silicate-supported acetylene copper catalyzes the decomposition of BYD to produce propynyl alcohol, the reaction temperature is 150°C, the operation is under normal pressure, the solvent ethylene glycol / BYD mass ratio is 2 / 1, the catalyst concentration is 20 wt %, and the reaction time is 4 hours. The yield of propynyl alcohol is 33.3%.

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Abstract

The invention discloses a continuous, safe and efficient system device for producing propargyl alcohol and a preparation process thereof. The system device comprises an organic solvent storage tank, arefined BYD storage tank, a propargyl alcohol preparation reactor, a spent catalyst delivery pump, a catalyst activation reactor, a fresh catalyst delivery pump, an acetylene gas holder, an alkali liquor tank, a trioxymethylene storage tank, a nitrogen gas storage tank and a propargyl alcohol storage tank, wherein refined BYD in the refined BYD storage tank is gradually added to the propargyl alcohol preparation reactor by a pump; meanwhile, a catalyst is the catalyst activation reactor is continuously delivered to the propargyl alcohol preparation reactor by the fresh catalyst delivery pump;the spent catalyst in the propargyl alcohol preparation reactor is continuously delivered to the catalyst activation reactor by the spent catalyst delivery pump; and a part of solution in the propargyl alcohol preparation reactor is discharged to realize continuous stable operation of the device. The safety and stability of the device are improved, the concentration of propargyl alcohol preparedby decomposition of BYD is high, the yield of the propargyl alcohol is high, and the economic benefits are obvious.

Description

technical field [0001] The invention belongs to the technical field of medicine and chemical industry, and in particular relates to a system device for continuously, safely and efficiently producing propynyl alcohol and a preparation process thereof. technical background [0002] Proynyl alcohol is an important intermediate in organic synthesis in industry. In the pharmaceutical industry, propynyl alcohol is an important intermediate for the synthesis of fosfomycin sodium, fosfomycin calcium, and sulfadiazine, and is also used in the production of allyl alcohol, acrolein, vitamin A and other pharmaceutical products. In the pesticide industry, it is used for the synthesis of decantide pesticide. Proynyl alcohol can be prepared by the addition reaction of terminal alkynes to aldehydes or ketones. The reaction process is generally through the reaction of active metal reagents such as alkyl zinc and butyl lithium with terminal alkynes to form alkynyl zinc or alkynyl lithium. R...

Claims

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Application Information

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IPC IPC(8): C07C29/44C07C33/044
CPCC07C29/44C07C33/044
Inventor 王玉丽
Owner 北京笃敬科技有限公司
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