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Synthetic method of sorbierite polyoxyethylene ether tall-oil acid ester

A technology of polyoxyethylene ether tall oleate and polyoxyethylene ether, which is applied in the field of synthesis of ester compounds in organic chemistry, and achieves the effects of simple equipment, less side reactions and simple process

Active Publication Date: 2012-01-11
ZHEJIANG HUANGMA TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

But polyoxyethylene sorbitan tall oleate report is less

Method used

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  • Synthetic method of sorbierite polyoxyethylene ether tall-oil acid ester
  • Synthetic method of sorbierite polyoxyethylene ether tall-oil acid ester
  • Synthetic method of sorbierite polyoxyethylene ether tall-oil acid ester

Examples

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Effect test

Embodiment 1

[0024] In this example, the molar ratio of sorbitol polyoxyethylene ether (the addition number of ethylene oxide is 20) to tall oleic acid is 1:3.

[0025] Add 370g of 70% sorbitol and 0.4g of catalyst solid potassium hydroxide to the reaction kettle by weight, raise the temperature to 120°C for vacuum dehydration, collect water, end the dehydration when the water volume reaches 111.0g, raise the temperature to 160°C, and slowly introduce ethylene oxide 1252.2g of alkanes, after the polymerization reaction is completed, the temperature is lowered to 80°C, 0.4g of acetic acid is added for neutralization, and the material is discharged. Add 400g of the above-mentioned sorbitol polyoxyethylene ether (20) in a 1-liter four-necked flask, add 327g of tall oleic acid, add 2.0g of p-toluenesulfonic acid and hypophosphorous acid mixed catalyst under stirring, gradually heat up, vacuum at 80 ℃ In the state, react for 2 hours, then heat up, keep the temperature at 150°C for 3 hours, cool...

Embodiment 2

[0027] In this embodiment, the molar ratio of sorbitol polyoxyethylene ether (the addition number of ethylene oxide is 20) to tall oil is 1:5.

[0028] In the reactor, add 300g of polyoxyethylene sorbitol ether (20) of Example 1 by mass, 408g of tall oleic acid, add 3.5g of dodecylbenzene sulfonic acid catalyst under stirring, gradually heat up, in a vacuum state of 90°C , react for 2 hours, then raise the temperature, under vacuum degassing state, keep warm for 4 hours under the reaction condition of 150°C, cool down to 60°C and discharge, color No. 5 (Gardner), acid value 8.2mgKOH / g , the hydroxyl value is 33.1mgKOH / g.

Embodiment 3

[0030] In this embodiment, the molar ratio of sorbitol polyoxyethylene ether (addition number of ethylene oxide is 50) to tall oil is 1:4.

[0031] Add 155.7g of 70% sorbitol and 0.5g of catalyst solid potassium hydroxide to the reaction kettle by weight, raise the temperature to 120°C for vacuum dehydration, collect water, end the dehydration when the water volume reaches 46.7g, raise the temperature to 160°C, and slowly introduce epoxy 1320g of ethane, after the polymerization reaction, lower the temperature to 80°C, add 0.5g of acetic acid for neutralization, and discharge. Add 500g of the above-mentioned sorbitol polyoxyethylene ether (50) into a 1-liter four-neck flask, add 241g of tall oleic acid, add 2.0g of p-toluenesulfonic acid under stirring, then heat up, and react for 2 hours at 80°C under vacuum , gradually warming up, keep warm for 4 hours under the reaction condition of 150°C, cool down to 60°C and discharge, No. 5 color (Gardner), acid value 6.6mgKOH / g, hydrox...

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Abstract

The invention discloses a synthetic method of sorbierite polyoxyethylene ether tall-oil acid ester, the method takes sorbierite and ethylene oxide as raw materials, which are polymerized at certain temperature and under base catalyst, thus preparing sorbierite polyoxyethylene ether, then the sorbierite polyoxyethylene ether and tall-oil acid ester are used as the raw materials, under the functionof organic acid catalyst, dehydration condensation reaction is carried out at low temperature, hydroxyl of high activity reacts with carboxyl completely, and then heating reaction is carried out, thus preparing the orbierite polyoxyethylene ether tall-oil acid ester. The synthetic method has the characteristics of simple operation and good using performance.

Description

technical field [0001] The invention relates to a synthesis method of sorbitol polyoxyethylene ether tall oil ester, belongs to the technical field of synthesis of ester compounds in organic chemistry, and also relates to ethylene oxide polymerization reaction. Background technique [0002] Sorbitol Polyoxyethylene Ether Tall Oleate is a highly hydrophilic (HLB) nonionic surfactant, mainly used as an oil-in-water (O / W) emulsifier, water-based dispersant, Oil emulsifying additives, used in industrial coatings, decorative coatings, alkyd resins and metal processing and other fields. There are many reports on the synthesis method of sorbitan fatty acid ester. CN1228774A introduces a method of directly synthesizing sorbitan fatty acid ester with sorbitol and fatty acid, and then reacts with alkylene oxide to prepare derivative sorbitan fatty acid ester. Patent CN1420877A has introduced alkali to do catalyst, does not need the direct esterification process of a large amount of b...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08G65/28B01F17/42C08G65/332C09K23/42
Inventor 王伟松金一丰刘志湘万庆梅王胜利
Owner ZHEJIANG HUANGMA TECH
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