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Preparation method of leveling agent

A technology of leveling agent and catalyst, which is applied in the field of preparation of leveling agent, can solve the problems of many processes and unsatisfactory output, and achieve the effect of less process and high output

Inactive Publication Date: 2013-04-17
JIANGSU HAIAN PETROCHEM PLANT
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] Leveling agent is a substance added to the fabric during the dyeing process to promote uniform dyeing and avoid defects such as color stripes and stains. However, the preparation method of general leveling agent requires many processes and the output is not ideal.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0013] A kind of preparation method of leveling agent, described preparation method comprises the following steps:

[0014] (1) Feeding: Put C16~18 alcohol into a stirring melting tank, react at a temperature of 90°C for 6 hours, and melt into a liquid;

[0015] (2) Catalyst addition: pump the liquid prepared in step (1) into the reaction kettle under negative pressure, add a conventional basic catalyst, raise the temperature to 100°C, and dehydrate under negative pressure for 40 minutes at the same time;

[0016] (3) Add EO to react: slowly add EO to react at 150°C for 4 hours, and control the pressure at this time above 0.4 MPa. After 30 minutes of reaction, reduce the pressure to normal pressure, and take samples to test the central control;

[0017] (4) Post-treatment: After the central control data reaches the cloud point of 91°C, cool down to 120°C, add conventional acid for neutralization for 10 minutes, cool down to 110°C, and then add decolorizing agent for 10 minutes...

Embodiment 2

[0020] A kind of preparation method of leveling agent, described preparation method comprises the following steps:

[0021] (1) Feeding: put C16~18 alcohol into a stirring melting tank, react at a temperature of 110°C for 10 hours, and melt into a liquid;

[0022] (2) Catalyst addition: pump the liquid produced in step (1) into the reaction kettle under negative pressure, add a conventional basic catalyst, raise the temperature to 120°C, and dehydrate under negative pressure for 60 minutes at the same time;

[0023] (3) Add EO reaction: Add EO slowly at 170°C for 6 hours, and control the pressure at this time above 0.4 MPa. After 60 minutes of reaction, reduce the pressure to normal pressure, and take samples to test the central control;

[0024] (4) Post-treatment: After the central control data reaches the cloud point of 94°C, cool down to 130°C, add conventional acid for neutralization for 30 minutes, cool down to 120°C, and then add decolorizing agent for 30 minutes;

[0...

Embodiment 3

[0028] A kind of preparation method of leveling agent, described preparation method comprises the following steps:

[0029] (1) Feeding: Put C16~18 alcohol into a stirring melting tank, react at a temperature of 100°C for 8 hours, and melt into a liquid;

[0030] (2) Catalyst addition: pump the liquid produced in step (1) into the reaction kettle under negative pressure, add a conventional basic catalyst, raise the temperature to 110°C, and dehydrate under negative pressure for 55 minutes at the same time;

[0031] (3) Add EO to react: slowly add EO to react at 160°C for 5 hours, and control the pressure at this time above 0.4 MPa. After 50 minutes of reaction, reduce the pressure to normal pressure, and take samples to test the central control;

[0032] (4) Post-treatment: After the central control data reaches the cloud point of 93°C, cool down to 125°C, add conventional acid for neutralization for 20 minutes, cool down to 115°C, and then add decolorizing agent for 20 minute...

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PUM

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Abstract

The present invention discloses a preparation method of a leveling agent, comprising the steps of: (1) feeding; (2) adding a catalyst; (3) adding EO for reaction; (4) post-processing; and (5) pressing, cooling and cutting into slices. Compared with the conventional preparation processes, the preparation method is higher in yield and less in process procedures.

Description

technical field [0001] The invention specifically relates to a preparation method of a leveling agent. Background technique [0002] Leveling agent is a substance added during the dyeing process of fabrics in order to promote uniform dyeing and avoid defects such as color stripes and stains. However, the preparation method of general leveling agent requires many processes and the output is not ideal. Contents of the invention [0003] Purpose of the invention: the present invention provides a preparation method of a leveling agent with high production efficiency in order to solve the deficiencies of the prior art. [0004] Technical scheme: In order to realize the above-mentioned invention purpose, the technical scheme adopted in the present invention is as follows: a preparation method of leveling agent, said preparation method comprising the following steps: [0005] (1) Feeding: put C16~18 alcohol into a stirring melting tank, react at a temperature of 90-110°C for 6-1...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08G65/28C07C41/03C07C43/11D06P1/613D06P1/651
Inventor 王加国
Owner JIANGSU HAIAN PETROCHEM PLANT