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Preparation method for modified disperse dye dispersing agent and product

A technology of disperse dyes and diffusing agents, which is applied in the preparation of sulfonic acid, organic dyes, sulfonate, etc., to achieve the effects of reducing production costs, reducing pollution, and simple operation steps

Active Publication Date: 2014-01-22
ZHEJIANG QINYAN TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] However, the amount of CLT acid production wastewater produced in China every year is very large, and the above-mentioned recycling method alone is difficult to completely solve the technical problem of CLT acid production wastewater recovery

Method used

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  • Preparation method for modified disperse dye dispersing agent and product
  • Preparation method for modified disperse dye dispersing agent and product
  • Preparation method for modified disperse dye dispersing agent and product

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0029] 1. Production formula of modified disperse dye diffusing agent (parts by weight):

[0030]

[0031] 2. Production process of modified disperse dye diffuser:

[0032] In the reactor, add 20.0 parts of industrial methylnaphthalene (Methylnaphthalene content ≥ 60% from Zhejiang Chuanhua Energy Co., Ltd.), raise the temperature to 140°C; add 20.5 parts of 98% sulfuric acid dropwise, and control the temperature to 160°C ;Drip addition is completed, reflux reaction for 5 hours; cool down to 110°C; add 5.4 parts of water; reflux reaction for 3 hours; 16.5 parts of CLT acid wastewater containing various isomers of 23% CLT acid (selected from the CLT acid wastewater produced by Zhejiang Qinyan Chemical Co., Ltd.), the temperature is raised to 90°C; 1.5 parts of 37% formaldehyde is added dropwise, and the temperature is controlled to 90°C ; Reflux reaction for 4 hours; Obtain a solid content of 55% of the intermediate product. Neutralize the residual sulfuric acid therein, r...

Embodiment 2

[0034] 1. Production formula of modified disperse dye diffusing agent (parts by weight):

[0035]

[0036] 2. Production process of modified disperse dye diffuser:

[0037] In the reactor, add 17.0 parts of coal tar washing oil (the coal tar washing oil of Hunan Iron and Steel Co., Ltd., the content of methylnaphthalene is about 50%), and raise the temperature to 150°C; add 18.0 parts of 98% sulfuric acid dropwise, and control the temperature to 160 ℃; after the dropwise addition, reflux for 5 hours; cool down to 110°C; add 3.9 parts of water; Add 27.9 parts of CLT acid wastewater containing 23% of various isomers of CLT acid, and heat up to 90°C; add 2.4 parts of 37% formaldehyde dropwise, and control the temperature to 90°C; reflux for 4 hours; obtain a solid content of 60 % of intermediate products. Neutralize and desalt to obtain a modified disperse dye dispersant liquid product with a solid content of 40%, or a modified disperse dye dispersant powder product through ...

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Abstract

The invention discloses a preparation method for a modified disperse dye dispersing agent. The preparation method comprises the following steps of heating a naphthalene compound to 130-170 DEG C, adding sulfuric acid to perform sulfonation reaction, cooling to 100-130 DEG C after the sulfonation reaction is finished, adding water, cooling to 80-100 DEG C after the reaction is finished, adding an aldehyde compound to perform primary condensation reaction under a temperature condition until the reaction is finished, adding an isomer mixture of CLT (cross laminated timber) acid, heating to 80-100 DEG C, adding the aldehyde compound again to perform secondary condensation reaction, and obtaining the modified disperse dye dispersing agent after the reaction is finished. The invention also provides a dispersing agent product obtained by the method. Wastewater produced by the CLT acid produced in an organic pigment production process is used as a part of production raw materials for producing the modified disperse dye dispersing agent, so that the production cost of the modified disperse dye dispersing agent is reduced, and the pollution caused by the production of the wastewater through the CLT acid on the environment is alleviated; the modified disperse dye dispersing agent is suitable for industrial production.

Description

technical field [0001] The invention belongs to the technical field of organic chemical industry, and in particular relates to a preparation method and product of a modified disperse dye diffusing agent. Background technique [0002] During the commercial processing of disperse dyes, disperse dyes are ground into fine particles, which is conducive to their adsorption on the surface of polyester fibers, and finally diffuse into the interior of the fibers to complete the entire dyeing process. The addition of dispersants is used to improve the dispersibility of such dyes in water, to prevent the crystal growth, aggregation, and agglomeration of fine dye particles in the dyeing bath during the dyeing process, thereby affecting the dyeing process. The quality of fiber dyeing. [0003] Naphthalene-based disperse dye diffusers belong to naphthalene-based sulfonic acid formaldehyde condensates, and are the most commonly used disperse dye diffusers in the family of disperse dye dif...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C07C309/50C07C303/32C07C303/22C07C303/06C09B67/40B01F17/12B01F17/16B01F17/38C09K23/12C09K23/16C09K23/38
Inventor 仇文仲陈昭文王晓辉徐薇杨军浩
Owner ZHEJIANG QINYAN TECH CO LTD
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