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A kind of method for preparing rubber plasticizer from vegetable oil

A technology of rubber plasticizer and vegetable oil, which is applied in the field of plasticizers, can solve problems such as difficult realization of industrial production, and achieve the effects of improving reaction safety, increasing initial reaction speed, and sufficient epoxidation reaction

Pending Publication Date: 2016-11-02
贵州省玉屏康惠植物油厂
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Therefore, it is not easy to realize industrial production

Method used

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  • A kind of method for preparing rubber plasticizer from vegetable oil
  • A kind of method for preparing rubber plasticizer from vegetable oil

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0041] (1) Preparation of peroxy intermediates: Mix the mixed acid catalyst including organic acid (acetic acid) and strong acid (98wt% concentrated sulfuric acid and 732 resin) evenly, the mass ratio of organic acid and strong acid in the mixed acid catalyst is 6:3, stir and mix the peroxyacid stabilizer and 30wt% hydrogen peroxide evenly, and add the mixed acid catalyst dropwise to the mixed solution of the peroxyacid stabilizer and hydrogen peroxide at a temperature of 36°C. The peroxyacid stabilizer includes The mass ratio of ethylenediaminetetraacetic acid and potassium sodium tartrate is 1:0.2, the amount of mixed acid catalyst and peroxyacid stabilizer is 6% and 4% of pure hydrogen peroxide, respectively, after the addition is completed, stand at 36°C for reaction 10h to obtain a mixed solution of the peroxy intermediates.

[0042] (2)) Epoxidation reaction: add an epoxidation stabilizer to soybean oil, the epoxidation stabilizer includes urea, ethylenediaminetetraaceti...

Embodiment 2

[0044] (1) Preparation of peroxy intermediates: Mix the mixed acid catalyst including organic acid (formic acid and acetic acid) and strong acid (98wt% concentrated sulfuric acid and aluminum sulfate) evenly, and the mass ratio of organic acid and strong acid in the mixed acid catalyst is 16:6, stir and mix the peroxyacid stabilizer and 80wt% hydrogen peroxide evenly, and add the mixed acid catalyst dropwise to the mixed solution of the peroxyacid stabilizer and hydrogen peroxide at a temperature of 26°C. The peroxyacid stabilizer includes The mass ratio is 6:0.6 of ethylenediaminetetraacetic acid and potassium sodium tartrate. The added amount of the mixed acid catalyst and peroxyacid stabilizer is respectively 12% and 6% of the hydrogen peroxide. After 24 hours of reaction, a mixed solution of the peroxy intermediate was obtained.

[0045] (2) Epoxidation reaction: add an epoxidation stabilizer to soybean oil, and the epoxidation stabilizer includes urea, ethylenediaminetetr...

Embodiment 3

[0047] (1) Preparation of peroxy intermediate: Mix the mixed acid catalyst including organic acid (formic acid) and strong acid (phosphoric acid and 732 resin) evenly, the mass ratio of organic acid and strong acid in the mixed acid catalyst is 10:4, Stir and mix the peroxyacid stabilizer and 60wt% hydrogen peroxide evenly, and add the mixed acid catalyst dropwise to the mixed solution of the peroxyacid stabilizer and hydrogen peroxide when the temperature is 30° C., the peroxyacid stabilizer The agent includes ethylenediaminetetraacetic acid and potassium sodium tartrate with a mass ratio of 3:0.3, and the addition amounts of the mixed acid catalyst and peroxyacid stabilizer are respectively 10% and 3% of hydrogen peroxide. Stand for reaction for 16h to obtain the mixed solution of the peroxygen intermediate.

[0048] (2) Epoxidation reaction: add an epoxidation stabilizer to linseed oil, the epoxidation stabilizer includes urea, ethylenediaminetetraacetic acid, potassium sod...

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Abstract

The invention discloses a method for preparing a rubber plasticizer from vegetable oil. Add the mixed acid catalyst dropwise into the mixed solution of the peroxyacid stabilizer and hydrogen peroxide at 26-36° C. to react to obtain the mixed solution of the peroxy intermediate. (2) Add an epoxidation stabilizer to the vegetable oil, then drop the mixed solution of the peroxygen intermediate at 66-96°C, keep warm for 10-30 minutes; then add hydrogen peroxide solution dropwise, keep warm for 1-4 minutes hour, and then processed to obtain the epoxy vegetable oil product. The present invention adopts three-step method to carry out epoxidation to vegetable oil, selects suitable catalyst and stabilizer, and reaction time is shortened, so reaction selectivity is high, reaction side reaction is few, epoxidation time is short, reaction conversion rate improves, and reduces Production costs, improve the safety of production.

Description

technical field [0001] The invention relates to the technical field of plasticizers, in particular to the preparation of epoxidized vegetable oil used as rubber and plastic plasticizers. Background technique [0002] my country is a large agricultural country. Agriculture as the primary industry accounts for a large proportion of the national economy. However, the degree of processing of oil crops in my country is relatively low, and the varieties of deep-processed products are relatively single, mainly edible oil. Using vegetable oil as a plasticizer and toughener for engineering plastics can broaden the consumption channels of vegetable oil, which is conducive to increasing the processing depth of agricultural products, increasing the added value of agricultural products, and increasing the conversion of agricultural products, thus helping to form a new agricultural industry. point of economic growth. [0003] The main component of vegetable oil is triglyceride formed by ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C11C3/00
Inventor 陈康佩
Owner 贵州省玉屏康惠植物油厂
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