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Method for preparing high-concentration acidic soap lotion

A soaping agent and acidic technology, which is applied in the field of preparation of high-concentration acidic soaping agent, can solve the problems of increasing storage and transportation costs of acidic soaping agent, achieve the effect of reducing storage and transportation costs, and accelerating evaporation and condensation

Inactive Publication Date: 2011-07-13
李建
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

But known acidic soaping agent is to use acrylic acid, maleic anhydride and solvent etc. to be a kind of water-soluble macromolecular polymer that main raw material polymerizes, when the concentration of acrylic acid and maleic anhydride in the reaction solution is higher, easy Cause implosion, therefore, utilize the acidic soaping agent water content that the production method of known acidic soaping agent produces is generally at 40~50wt%, and the consumption of this kind of acidic soaping agent in neutralizing soaping liquid is 3~50wt%. 5wt%, due to the large amount, the storage and transportation costs of the acidic soaping agent are increased

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0019] The low-concentration acidic soaping agent synthesized by copolymerization of acrylic acid and maleic anhydride as the main raw materials is put into a reaction kettle with a temperature-regulating jacket on the outer wall. Stirring device, temperature-regulating jacket with steam heating, heat the acid soaping agent in the reactor to 75°C, use the shell-and-tube condenser to condense the steam evaporated in the reactor, the shell-and-tube condenser and vacuum extraction The device is connected, and under the vacuum of 0.08% Mpa, the low-concentration acidic soaping agent is evaporated and condensed, and when the water content of the acidic soaping agent in the reactor <35wt%, stop evaporation and condensation, and the temperature adjustment of the reactor Cooling water is fed into the jacket to cool the material rapidly.

Embodiment 2

[0021] The low-concentration acidic soaping agent synthesized by copolymerization of acrylic acid and maleic anhydride as the main raw materials is put into a reaction kettle with a temperature-regulating jacket on the outer wall. Stirring device, heat the temperature-adjusting jacket with steam, heat the acid soaping agent in the reactor to 80°C, use the tubular condenser to condense the evaporated steam in the reactor, the tubular condenser and vacuum extraction The device is connected, and under the vacuum of 0.08% Mpa, the low-concentration acidic soaping agent is evaporated and condensed, and when the water content of the acidic soaping agent in the reactor <35wt%, stop evaporation and condensation, and the temperature adjustment of the reactor Cooling water is fed into the jacket to cool the material rapidly.

Embodiment 3

[0023] The low-concentration acidic soaping agent synthesized by copolymerization of acrylic acid and maleic anhydride as the main raw materials is put into a reaction kettle with a temperature-regulating jacket on the outer wall. Stirring device, temperature-regulating jacket with steam heating, heat the acid soaping agent in the reactor to 90°C, use the shell-and-tube condenser to condense the steam evaporated in the reactor, the shell-and-tube condenser and vacuum extraction The device is connected, and under the vacuum of 0.08% Mpa, the low-concentration acidic soaping agent is evaporated and condensed, and when the water content of the acidic soaping agent in the reactor <35wt%, stop evaporation and condensation, and the temperature adjustment of the reactor Cooling water is fed into the jacket to cool the material rapidly.

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PUM

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Abstract

The invention discloses a method for preparing a high-concentration acidic soap lotion. The method comprises the following steps of: (1) evaporating by heating, namely heating an acidic soap lotion to 72 to 100 DEG C under stirring for evaporation; (2) performing vacuum extraction, namely performing vacuum extraction on vapor obtained in the step (1); (3) condensing, namely condensing the vapor obtained in the step (2) through vacuum extraction; and (4) cooling, namely cooling materials after evaporation by heating to obtain the high-concentration acidic soap lotion. The high-concentration acidic soap lotion is prepared by concentrating a low-concentration acidic soap lotion which is synthesized by copolymerizing acrylic acid and maleic anhydride serving as main raw materials, so that storage and transportation costs of the acidic soap lotion are reduced.

Description

technical field [0001] The invention relates to the preparation of soaping agent, in particular to a preparation method of high-concentration acidic soaping agent. Background technique [0002] Reactive dyes have become the preferred dyes for printing and dyeing cellulose textiles due to their mature dyeing process, complete color spectrum, moderate price, and high color fastness. However, during the dyeing process, when reactive dyes are dyed and fixed, up to 20% to 40% of reactive dyes will be hydrolyzed, resulting in a "floating color" phenomenon. The existence of unfixed dyes will reduce the color fastness of dyed fabrics, and then Affects the rubbing fastness of textiles. In addition, during the washing and soaping process of printed fabrics, the washed dyes will form a certain concentration of dyes in the washing liquid, which will "secondarily dye" the fabrics, affect the rubbing fastness of the fabrics, and cause fabrics to fade. White stains. Therefore, the post-...

Claims

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Application Information

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IPC IPC(8): C08F222/06C08F220/06C08F6/00D06P5/08
Inventor 李建梁足培
Owner 李建
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