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Preparation method and application of vegetable oil polyol

A vegetable oil polyol and vegetable oil technology, which is applied in the preparation of organic compounds, carboxylic acid ester preparation, chemical instruments and methods, etc., can solve the problems of low hydroxyl value and low quality, achieve high hydroxyl value, reduce the occurrence of side reactions, The effect of novel structure

Active Publication Date: 2016-04-06
NANJING UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] The technical problem to be solved by the present invention is to provide a vegetable oil polyol to solve the problems of low hydroxyl value and low quality in the prior art

Method used

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  • Preparation method and application of vegetable oil polyol
  • Preparation method and application of vegetable oil polyol
  • Preparation method and application of vegetable oil polyol

Examples

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Effect test

Embodiment 1

[0043] Dissolve 100g soybean oil in 670mL ethyl acetate, add 18.9g selenium dioxide, mix well, stir and react at 40℃ for 30h, then add 335mLNa 2 CO 3 Cool the saturated aqueous solution to cool down, then add appropriate amount of Na 2 SO 3 Remove excess oxidant, then separate the organic phase, wash with saturated sodium chloride aqueous solution three times, and dry with anhydrous magnesium sulfate to obtain allyl oxidized vegetable oil; then combine the oxidized vegetable oil with epoxy-hydroxylation reagent (98 % Formic acid 186.8g, 30% hydrogen peroxide 450.9g, 98% sulfuric acid 1.7g, ethylenediaminetetraacetic acid disodium 4.2g) were simultaneously pumped into the microchannel modular reaction device (the microstructure reactor model is sandwichreactorHC), and the flow rates were respectively 0.8mL / min, 4.9mL / min, keep at 70℃ and normal pressure for 6.5min, finally collect the organic phase in the product, wash with 5% sodium carbonate aqueous solution to neutrality, and d...

Embodiment 2

[0045] Dissolve 100g of peanut oil in 670mL of tetrahydrofuran, add 17.5g of selenium dioxide, mix well, stir and react at 45℃ for 35h, then add 335mL of Na 2 CO 3 Cool the saturated aqueous solution to cool down, then add appropriate amount of Na 2 SO 3 Remove excess oxidant, then separate the organic phase, wash with saturated sodium chloride aqueous solution three times, and dry with anhydrous magnesium sulfate to obtain allyl oxidized vegetable oil; then combine the oxidized vegetable oil with epoxy-hydroxylation reagent (98 169.0g of% formic acid, 407.9g of 30% hydrogen peroxide, 1.8g of 98% sulfuric acid, 6.7g of disodium ethylenediaminetetraacetic acid) were pumped into the microchannel modular reaction device at the same time (the microstructure reactor used homemade Hastelloy microchannel reaction The flow rate is 0.3mL / min, 1.9mL / min, and kept at 60℃ and normal pressure for 9min. Finally, the organic phase in the product is collected, and the 5% sodium carbonate aqueous...

Embodiment 3

[0047] Dissolve 100g cottonseed oil in 670mL ethyl acetate, add 89.6g tert-butanol peroxide, mix well, stir and react at 50℃ for 40h, then add 335mLNa 2 CO 3 Cool the saturated aqueous solution to cool down, then add appropriate amount of Na 2 SO 3 Remove excess oxidant, then separate the organic phase, wash with saturated sodium chloride aqueous solution three times, and dry with anhydrous magnesium sulfate to obtain allyl oxidized vegetable oil; then combine the oxidized vegetable oil with epoxy-hydroxylation reagent (98 % Formic acid 210.2g, 30% hydrogen peroxide 507.3g, 98% sulfuric acid 4.0g, ethylenediaminetetraacetic acid disodium 18.5g) were simultaneously pumped into the microchannel modular reaction device (the microstructure reactor model is sandwichreactorHC), and the flow rates were respectively 0.5mL / min, 3.2mL / min, keep at 90℃ and normal pressure for 10min, finally collect the organic phase in the product, wash with 5% sodium carbonate aqueous solution to neutralit...

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Abstract

The present invention discloses a preparation method of vegetable oil polyol. First, vegetable oil is subjected to allylic oxidation treatment to increase the hydroxyl content in the product; and then a one-step reaction of epoxidation and ring opening is conducted to obtain the vegetable oil polyol. At the same time, the present invention also discloses the novel vegetable oil polyol obtained by the preparation method and application of the vegetable oil polyol in the manufacture of polyurethane foam material. Compared with the prior art, the method of the present invention has simple operation, low energy consumption and low incidence of side effects. At the same time, the product has a novel structure and high hydroxyl value, and can be used in the preparation of high-quality polyurethane foam materials.

Description

Technical field [0001] The invention belongs to the technical field of chemical engineering, and specifically relates to a vegetable oil polyol and a preparation method and application thereof. Background technique [0002] Polyurethane material is a polymer with repeating structural units of urethane segments made by the reaction of isocyanate and polyol. Among them, the international market for isocyanates tends to be stable, mainly MDI and TDI. The supply and demand tends to be balanced and the production process is relatively complete; while there are many types of polyurethane polyols, and the dominant polyols on the market are mainly some higher functionalities. Polyether polyols obtained by reacting high-degree hydroxyl compounds and amine compounds with propylene oxide or ethylene oxide. In addition, there are polyester polyols, modified graft polyether polyols, etc., these polyol products They are all downstream products of petroleum, with strong resource dependence, hi...

Claims

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Application Information

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IPC IPC(8): C07C67/31C07C69/675C08G18/67C08G101/00
CPCC07C67/31C08G18/36C08G2110/0025C07C69/675C07C69/732C08G18/7664C08G18/2865C08G18/67
Inventor 郭凯季栋方正朱宁欧阳平凯
Owner NANJING UNIV OF TECH
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