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Preparation of maleated rosin polyethenoxy ether diester carboxyl acid natrium surfactant

The technology of rosin polyoxyethylene ether and rosin octylphenol polyoxyethylene ether is applied in the field of preparation of polyoxyethylene ether diester sodium carboxylate surfactant, and can solve the problems of poor water solubility, corrosion in production, low emulsifying ability, etc. problem, to achieve the effect of good water-soluble stability, strong degreasing power and moderate foam

Inactive Publication Date: 2008-09-03
LANZHOU UNIVERSITY OF TECHNOLOGY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, surfactants made of rosin are mainly used as paper sizing agents, but they have the disadvantages of low emulsifying ability and poor water-soluble stability in other fields. At the same time, the products are mainly sulfonates or sulfates. Single, limited application field, serious production corrosion

Method used

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  • Preparation of maleated rosin polyethenoxy ether diester carboxyl acid natrium surfactant
  • Preparation of maleated rosin polyethenoxy ether diester carboxyl acid natrium surfactant
  • Preparation of maleated rosin polyethenoxy ether diester carboxyl acid natrium surfactant

Examples

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Effect test

Embodiment 1

[0020] (1) Synthesis of Maleic Rosin

[0021] Accurately weigh 681g of super-grade rosin and crush it. First, put 1 / 4 of the total amount of crushed rosin into a container equipped with electric stirring, condenser, thermometer, and N 2 Into a 1000ml four-necked reaction bottle heated by a protective device and an electric heating mantle, heat and stir intermittently. After the material is melted, continue to stir, and add the remaining rosin in batches. Block, prolong the time of compounding in due time, 120~130℃ for compounding, in order to prevent the high temperature from oxidizing the rosin and deepening the color of the resin, the kettle should be filled with N 2 Protect. After the rosin is completely melted, slowly add 102g of maleic anhydride in four times, the addition reaction is an exothermic reaction, and the temperature will rise automatically. Do not add maleic anhydride too fast, otherwise, it will cause overflowing the pot and spray the maleic anhydride. Afte...

Embodiment 2

[0025] (1) Synthesis of Maleic Rosin

[0026] Accurately weigh 665g of super-grade rosin and crush it. First, put 1 / 4 of the total amount of crushed rosin into a container equipped with electric stirring, condenser, thermometer, and N 2 Into a 1000ml four-necked reaction bottle heated by a protective device and an electric heating mantle, heat and stir intermittently. After the material is melted, continue to stir, and add the remaining rosin in batches. Block, prolong the time of compounding in due time, 120~130℃ for compounding, in order to prevent the high temperature from oxidizing the rosin and deepening the color of the resin, the kettle should be filled with N 2 Protect. After the rosin is completely melted, slowly add 118g of maleic anhydride in four times. The addition reaction is an exothermic reaction, and the temperature will automatically rise. Do not add maleic anhydride too fast, otherwise, it will cause overflowing the pot and spraying the maleic anhydride. A...

Embodiment 3

[0030] (1) Synthesis of Maleic Rosin

[0031] Accurately weigh 697g of super-grade rosin and crush it. First, put 1 / 4 of the total amount of crushed rosin into a container equipped with electric stirring, condenser, thermometer, and N 2 Into a 1000ml four-necked reaction bottle heated by a protective device and an electric heating mantle, heat and stir intermittently. After the material is melted, continue to stir, and add the remaining rosin in batches. Block, prolong the time of compounding in due time, 120~130℃ for compounding, in order to prevent the high temperature from oxidizing the rosin and deepening the color of the resin, the kettle should be filled with N 2 Protect. After the rosin is completely melted, slowly add 86g of maleic anhydride in four times. The addition reaction is an exothermic reaction, and the temperature will rise automatically. Do not add maleic anhydride too fast, otherwise, it will cause overflowing the pot and spray the maleic anhydride. After...

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Abstract

A method for producing maleated rosin sodium polyoxyethylene ether carboxylate surfactants is provided. The method includes the following steps: weighing high-quality rosin powder at the ratio given in the formulation, feeding 1 / 4 of the total weight of ground rosin into a four-mouth reactor, heating under incontinuously stirring, further stirring continuously after the powder is dissolved, adding the rest rosin, dissolving at 120-130 DEG C, prolonging the dissolution time, introducing nitrogen gas during the the dissolution process, slowly adding maleic anhydride at the ratio given in the formulation in four times after the rosin is dissolved completely, maintaining the temperature at 190-200 DEG C for 2 hours after the feeding of maleic anhydride is completed, to obtain the maleated rosin; adding the ground maleated rosin at the ratio given in the formulation into another four-mouth reactor, adding a certain amount of water-retaining agent, heating up until boiling, adding dropwise octyl phenol polyoxyethylene ether at the ratio given in the formulation and a small amount of catalysts to the system under stirring, reacting at a maintained temperature at 90 plus or minus 2 DEG C, adding dropwise and slowly the NaOH solution, stirring at a higher speed, reacting at a maintained temperature at 80 plus or minus 2 DEG C for 2 hours, cooling, and discharging.

Description

technical field [0001] The invention relates to the preparation of polyoxyethylene ether diester carboxylate sodium surfactant. Background technique [0002] Rosin is a renewable forest resource with high output and low price. The development of surfactants with rosin as raw material has obvious advantages in quantity and price, and it also has far-reaching significance for the forest industry to increase the added value of products. At the beginning of the 20th century, some countries began to use rosin to synthesize surfactants. At present, surfactants made of rosin are mainly used as paper sizing agents, but they have the disadvantages of low emulsifying ability and poor water-soluble stability in other fields. At the same time, the products are mainly sulfonates or sulfates. Single, limited application field, serious production corrosion. Contents of the invention [0003] The object of the present invention is to prepare a kind of maleic rosin octylphenol polyoxyeth...

Claims

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Application Information

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IPC IPC(8): B01F17/00C09K23/00
Inventor 崔锦峰杨保平周应萍张建强张焕亮
Owner LANZHOU UNIVERSITY OF TECHNOLOGY
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