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Device and method for producing epoxy fatty acid methyl ester as biological plasticizer

A technology of epoxy fatty acid methyl ester and bioplasticizer, which is applied in the field of bioplasticizer epoxy fatty acid methyl ester production equipment, can solve the problems of overflow of reactants, low degree of process automation, poor cooling effect of cooling system, etc., and achieve The effect of avoiding waste of resources and reducing costs

Active Publication Date: 2017-05-24
江苏向阳科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In addition, since the epoxidation reaction is a fast exothermic reaction, once the temperature of the reaction solution is not properly controlled, it will easily cause the reactants to overflow.
There are following defects in the production of epoxy fatty acid methyl ester in the existing equipment: (1) the reaction generation time is long, and the production cost is high; (2) the process flow design is unreasonable, and the utilization rate of resources and energy is poor; (3) the degree of process automation is low; (4) The cooling effect of the cooling system is poor and has unsafe factors

Method used

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  • Device and method for producing epoxy fatty acid methyl ester as biological plasticizer

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0029] A bioplasticizer epoxy fatty acid methyl ester production device, comprising a reactor 101, a washing tank 102 and a rectifying tank 103 arranged in series;

[0030] The top of the reaction kettle 101 is provided with a rectifying tower-301, and the top of the rectifying tower-301 is connected with the inlet of the condenser-401, and the outlet of the condenser-401 is connected with the reactor 101; the circulating cooling water of the condenser-401 is connected with the cooling tower Two 502 heat exchange;

[0031] Reactor 101 is connected with a hydrogen peroxide feed line, and a liquid storage tank one 201 is arranged on the hydrogen peroxide feed line, and the liquid storage tank one 201 is connected with a metering pump and an electromagnetic flowmeter; the liquid storage tank one 201 is a hydrogen peroxide storage tank , the concentration of hydrogen peroxide is 50% by mass. The reaction kettle 101 is also connected with fatty acid methyl ester and formic acid fe...

Embodiment 2

[0038] A kind of biological plasticizer epoxy fatty acid methyl ester production method, described method comprises the steps:

[0039] 1. Open the manual valve of the fatty acid methyl ester and formic acid feeding pipeline, and the metering pump sequentially adds 1000 kg of fatty acid methyl ester and 100 kg of formic acid into the reactor 101.

[0040] 2. Turn on the stirring, turn on the cooling water valve of the vacuum unit, turn on the automatic reaction temperature control system, the temperature of the reaction liquid measured by the temperature probe is lower than 45°C, the system controls the solenoid valve of the steam heating pipeline, and the steam is heated, and the temperature rises to 45°C. Turn off heat.

[0041] 3. Open the hydrogen peroxide feed valve and pump, store 360Kg of 50% hydrogen peroxide in the liquid storage tank 201, open the electromagnetic flowmeter, and drop hydrogen peroxide into the reaction kettle at a rate of 50g / S. When the reaction tem...

Embodiment 3

[0045] 1. Open the manual valve of the fatty acid methyl ester and formic acid feed pipeline, and the metering pump sequentially adds 1000 kg of fatty acid methyl ester and 110 kg of formic acid into the reactor 101.

[0046] 2. Turn on the stirring, turn on the cooling water valve of the vacuum unit, turn on the automatic reaction temperature control system, the temperature of the reaction liquid measured by the temperature probe is lower than 45°C, the system controls the solenoid valve of the steam heating pipeline, and the steam is heated, and the temperature rises to 45°C. Turn off heat.

[0047] 3. Open the hydrogen peroxide feed valve and pump, store 380Kg of 50% hydrogen peroxide in the liquid storage tank 1 201, open the electromagnetic flowmeter, and drop hydrogen peroxide into the reaction kettle at a rate of 55g / s. When the reaction temperature automatic control system detects that the temperature reaches 55°C, it controls the circulating cooling water in the coil ...

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Abstract

The invention relates to a device for producing epoxy fatty acid methyl ester as a biological plasticizer. The device comprises a reaction kettle (101), a material washing kettle (102) and a rectifying kettle (103) which arranged in series; a hydrogen peroxide feed line is connected to the reaction kettle (101); a liquid storage tank I (201) is arranged on the hydrogen peroxide feed line; a fatty acid methyl ester and formic acid feed line is also connected to the reaction kettle (101); a jacket is arranged outside the reaction kettle (101), a coiled pipe is arranged inside the reaction kettle (101), a coiled pipe is arranged in the rectifying kettle (103), and steam is introduced for heating; the rectifying kettle (103) is connected with a rectifying column II (302), the rectifying column II (302) is connected with a condenser II (402), and circulating cooling water of the condenser II (402) is connected with a cooling column II (502); the condenser II (402) is connected with a liquid storage tank IV (204), and a vacuum unit B is connected to the liquid storage tank IV (204). The device for producing the biological plasticizer epoxy fatty acid methyl ester has the advantages of being short in production period, low in cost, energy-saving and environment-friendly, safe and stable, and high in degree of automation.

Description

technical field [0001] The invention relates to a plasticizer preparation device, in particular to a bioplasticizer epoxy fatty acid methyl ester production device and a production method thereof. Background technique [0002] Plasticizer is one of the common additives in the plastics industry. Common varieties include DOP, DBP, etc. Its main function is to reduce the glass transition temperature of materials and the melt viscosity during plastic molding. However, many plasticizers Petroleum is used as raw material, which is toxic and does not meet environmental protection requirements. [0003] Epoxy fatty acid methyl ester is produced by epoxidation after esterification of natural vegetable oil and alcohol. It is a widely used non-toxic plasticizer for polyvinyl chloride. It has low volatility and can replace the traditional petroleum-based plasticizer. The synthetic toxic plasticizer meets the environmental protection requirements of plasticizers. Existing production me...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C07D303/42C07D301/12
Inventor 李祥庆朱士洪许振良李文忠
Owner 江苏向阳科技有限公司