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A kind of preparation method of the PVA wastewater treatment agent of textile sizing

A waste water treatment agent and technology of treatment agent, applied in the field of textile materials, can solve secondary pollution and other problems, and achieve the effect of strong adsorption capacity, remarkable adsorption effect and rich content

Active Publication Date: 2018-01-19
浙江巨力宝纺织科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Both methods can currently improve the removal rate of PVA in wastewater, but the content of PVA in the treated wastewater has not yet reached the standard for direct discharge, which still needs to be improved, and the wastewater treated with chemical treatment agents usually contains traces of toxic substances , may cause secondary pollution

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0030] (1) In parts by weight, 1 part of diatomite is sieved through a 60-purpose standard sieve to remove impurities such as clay, Shihuangsha, crushed mineral debris and obtain impurity-removed diatomite, then add 5 parts of water and stir until The diatomaceous earth was completely dissolved, allowed to stand for layers, and the upper suspension was taken, and 8 parts of sulfuric acid was added to the upper suspension, heated and stirred at 75°C for 2 hours, neutralized until the pH was neutral, and a modified diatomite solution was obtained.

[0031] (2) In parts by weight, add 7 parts of chitosan and 2 parts of boric acid to the diatomite solution prepared in 3 parts of step (1), stir at 25°C for 30min, after the chitosan is completely dissolved , add 8 parts of bamboo charcoal, 10 parts of modified starch and 35 parts of sodium hydroxide, heat and stir at 50°C for 60 minutes, and let stand to obtain a mixed solution of the treatment agent.

[0032] (3) Adjust the pH valu...

Embodiment 2

[0035] (1) In parts by weight, 1 part of diatomite is sieved through a standard sieve of 80 objects to remove impurities such as clay, Shihuangsha, crushed mineral debris and obtain impurity-removed diatomite, then add 7 parts of water and stir until The diatomaceous earth was completely dissolved, allowed to stand and separated into layers, and the upper suspension was taken, and 10 parts of sulfuric acid was added to the upper suspension, heated and stirred at 85°C for 3 hours, neutralized until the pH was neutral, and a modified diatomite solution was obtained.

[0036] (2) In parts by weight, add 20 parts of chitosan and 6 parts of boric acid to the diatomite solution prepared in step (1) of 5 parts, stir at 30° C. for 50 min, and wait for the chitosan to dissolve completely , add 12 parts of bamboo charcoal, 19 parts of modified starch and 50 parts of hydrochloric acid, heat and stir at 60°C for 90min, and let stand to obtain a mixed solution of the treatment agent.

[00...

Embodiment 3

[0040] (1) In parts by weight, 1 part of diatomite is sieved through a 70-purpose standard sieve to remove impurities such as clay, Shihuangsha, crushed mineral debris and obtain impurity-removed diatomite, then add 6 parts of water and stir until Dissolve the diatomite completely, let stand to separate layers, take the upper suspension, add 9 parts of sulfuric acid to the upper suspension, heat and stir at 80°C for 2.5h, neutralize until the pH is neutral, and obtain a modified diatomite solution .

[0041](2) In parts by weight, add 14 parts of chitosan and 3 parts of boric acid to the diatomite solution prepared in 4 parts of step (1), stir at 27°C for 40min, after the chitosan is completely dissolved , add 10 parts of bamboo charcoal, 15 parts of modified starch and 40 parts of sodium hydroxide, hydrochloric acid, citric acid, and ammonia water, heat and stir at 55°C for 80 minutes, and let stand to obtain a mixed solution of the treatment agent.

[0042] (3) Adjust the p...

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Abstract

The invention provides a PVA wastewater treating agent for spinning sizing and a preparation method thereof. The preparation method of the PVA wastewater treating agent for the spinning sizing comprises the following specific steps: (1), screening diatomaceous earth to remove impurities such as clay, stones, yellow sands and crushed ore chips, thereby obtaining impurity-removed diatomaceous earth; putting the diatomaceous earth into water, stirring till the diatomaceous earth is completely dissolved, stewing, layering, extracting upper-layer suspension, adding sulfuric acid to the upper-layer suspension, heating and stirring the solution, and neutralizing the solution till the pH value of the solution is neutral, thereby obtaining a modified diatomaceous earth solution; (2), adding chitin and boric acid to the modified diatomaceous earth solution, stirring for 30-50 minutes at 25-30 DEG C, and standing, thereby obtaining a mixed solution of a treating agent; (3), regulating the pH value of the mixed solution of the treating agent to be neural, filtering, washing filters by an ethanol water, and putting the filters in a vacuum oven to be dried, thereby obtaining dried treating agent powder; (4), grinding and pulverizing the dried treating agent powder, and screening the pulverized treating agent powder by utilizing a sample sieve, thereby obtaining the PVA wastewater treating agent for the spinning sizing.

Description

Technical field: [0001] The invention belongs to the technical field of textile materials, and in particular relates to a preparation method of a PVA wastewater treatment agent for textile sizing. Background technique: [0002] my country is a large textile country with a long history and has made outstanding contributions to the world's textile history. Sizing and sizing in textiles are also a long-term focus of discussion. The main purpose of warp sizing is to improve the weavability of the warp so that it can withstand the strong mechanical action on the loom during weaving, reduce the generation of hairiness, and improve production efficiency and product quality. During the sizing process of the warp yarn, the size solution covers the surface of the yarn and penetrates into the inside of the yarn. After drying, a soft, tough and elastic uniform size film is formed on the surface of the warp yarn, which improves the wear resistance and wear resistance of the slightly expo...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C02F1/52C02F1/28C02F1/42C02F103/30
CPCC02F1/281C02F1/283C02F1/42C02F1/5263C02F2103/30
Inventor 周继东
Owner 浙江巨力宝纺织科技有限公司
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