Non-quinoline dispersant MF and production process

A production process and dispersant technology, applied in the field of quinoline-free dispersant MF configuration and production process, can solve problems affecting product quality, large equipment investment, and large energy consumption

Inactive Publication Date: 2011-07-06
江阴市盛通化工有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This method needs to use recycled materials to adjust the acidity, and to recover the organic solvent, the process is more complicated, and the organic solvent is not completely inert, it will consume a certain amount of sulfonating agent, generate a certain amount of harmful by-products, which are difficult to separate, thus affecting the product quality
The Chinese invention patent with the publication number CN1043637 uses sulfur dioxide as a solvent, sulfonates it with sulfur trioxide, then recycles the solvent sulfur dioxide, and removes the residual sulfur trioxide with nitrogen. At the same time, there will be more residual sulfur dioxide in the sulfonated product, which will affect the quality of the product and the environment, and the equipment investment will be large and the cost will be high

Method used

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  • Non-quinoline dispersant MF and production process
  • Non-quinoline dispersant MF and production process

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0034] A kind of production technique without quinoline dispersant MF, described production technique comprises the following processing steps:

[0035] The first step: put 560kg of hexadecylmethylnaphthalene into the reactor, and then heat the raw materials in the reactor to 50°C;

[0036] Second step: after the first step is completed, add 80kg of dilute sulfuric acid in the reactor, and stir for 1 hour, then separate the added dilute sulfuric acid slag to obtain refined hexadecyl methyl naphthalene;

[0037] The third step: heating up the refined hexadecylmethylnaphthalene to 110°C;

[0038] The 4th step: add 610kg in the reactor after the 3rd step is finished, the concentrated sulfuric acid that weight percentage concentration is 98%, then the temperature of raw material in the reactor is raised to 130 ℃, carry out sulfonation reaction under normal pressure, and Keep warm for about 4 hours;

[0039] The fifth step: After the fourth step is completed, the temperature of t...

Embodiment 2

[0052] A kind of production technique without quinoline dispersant MF, described production technique comprises the following processing steps:

[0053] The first step: put 560kg of hexadecylmethylnaphthalene into the reactor, and then heat the raw materials in the reactor to 60°C;

[0054] Second step: after the first step is completed, add 80kg of dilute sulfuric acid in the reactor, and stir for 1.5 hours, then separate the added dilute sulfuric acid slag to obtain refined hexadecyl methylnaphthalene;

[0055] The third step: heating up the refined hexadecylmethylnaphthalene to 120°C;

[0056] Step 4: After the completion of the third step, add 610 kg of sulfuric acid with a concentration of 98% by weight in the reactor, then raise the temperature of the raw materials in the reactor to 140°C, carry out the sulfonation reaction under normal pressure, and keep it warm about 4 hours;

[0057] The fifth step: After the fourth step is completed, the temperature of the raw materi...

Embodiment 3

[0070] A kind of production technique without quinoline dispersant MF, described production technique comprises the following processing steps:

[0071] The first step: put 560kg of hexadecylmethylnaphthalene into the reactor, and then heat the raw materials in the reactor to 55°C;

[0072] Second step: after the first step is completed, add 80kg of dilute sulfuric acid in the reactor, and stir for 1.5 hours, then separate the added dilute sulfuric acid slag to obtain refined hexadecyl methylnaphthalene;

[0073] The third step: heating up the refined hexadecylmethylnaphthalene to 115°C;

[0074] Step 4: After the completion of the third step, add 610 kg of sulfuric acid with a concentration of 98% by weight to the reactor, then raise the temperature of the raw materials in the reactor to 135°C, carry out sulfonation reaction under normal pressure, and keep it warm about 4 hours;

[0075] The fifth step: After the fourth step is completed, the temperature of the raw material...

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Abstract

The invention discloses a non-quinoline dispersant MF and a production process, wherein the non-quinoline dispersant MF comprises the following main components in percentage by weight: 35 percent of alpha-methylnaphthalene naphthalene sulfonate-formaldehyde condensates and 65 percent of beta-methylnaphthalene naphthalene sulfonate-formaldehyde condensates. The production process of the non-quinoline dispersant MF comprises the steps of: adding hexadecyl-carbon methylnaphthalene into a reactor, heating the reactor to be a temperature of 50 to 60 DEG C, adding inorganic acid, stirring for one hour, separating and heating the refined hexadecyl-carbon methylnaphthalene to be at the temperature of 110 DEG C, dripping sulfuric acid and rising the temperature to be 130 to 140 DEG C, and conducting sulfonation at normal pressure and heat preservation for four hours; cooling to be a temperature of 110 DEG C and then conducting hydrolyzation; dripping formaldehyde after the refined hexadecyl-carbon methylnaphthalene is cooled to be a temperature of 80 DEG C, rising the refined hexadecyl-carbon methylnaphthalene to be a temperature of 105 to 115 DEG C, and conducting condensation at normal pressure and heat preservation for three hours; and adding liquid caustic soda for neutralization, adding lime for adjusting the pH value to range from 7 to 8, conducting filter pressing, and drying, thus being packaged into finished products. The product is used for dyeing, and the clothes manufactured by the dyed cloths have no damage to a human body.

Description

technical field [0001] The invention relates to a dispersant MF used for reducing and dispersing functions, in particular to a quinoline-free dispersant MF configuration and production process. Background technique [0002] Dispersant MF is the formaldehyde condensate of sodium methyl naphthalene sulfonate. It is mainly used as a dispersant and filler for vat dyes and disperse dyes. It is mainly used as a processing agent and dispersant for disperse dyes and vat dyes. Its performance is better than Dispersant N. Dispersant MF has the advantages of good grinding effect, dispersibility, heat resistance and high temperature dispersion stability. Higher temperature resistance and stability than dispersant N. Dispersant MF can make dyes bright in color, increase in color strength and uniform in coloring. Dispersant MF can also be compounded with various dispersants to meet the commercial requirements of various disperse dyes and vat dyes; it can also be used as an early-streng...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01F17/12C09K23/12
Inventor 蒋江
Owner 江阴市盛通化工有限公司
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