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Method for preparing stable sodium chlorite solution

A sodium chlorite solution, stable technology, applied in the field of bleaching agent and disinfectant, can solve the unstable production, transportation, storage, sales and use of sodium chlorite solution, potential safety hazards, explosion personnel and other problems, to achieve Product stability, surface tension reduction, production safety effects

Inactive Publication Date: 2011-03-30
HEBEI UNIVERSITY OF SCIENCE AND TECHNOLOGY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The instability of sodium chlorite solution has brought great inconvenience to its production, transportation, storage, sales and use, and there are potential safety hazards. If it is not handled properly, it will cause a slight explosion or cause personnel poisoning and damage.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

preparation example Construction

[0018] A kind of preparation method of stable sodium chlorite solution of the present invention, it may further comprise the steps:

[0019] a. Take 95.0-99.9 sodium chlorite solution, 0.01-1.0 heavy metal ion complexing agent, 0.01-1.0 solution pH value stabilizer, 0-1.0 anti-heat agent, and 0-2.0 anti-light agent in parts by weight.

[0020] b. Add the sodium chlorite solution, heavy metal ion complexing agent, solution pH value stabilizer, heat resisting agent, and light resisting agent in step a into the reactor in sequence, mix well, let stand, and then remove the precipitate to obtain stable Sodium chlorite solution product.

[0021] Described sodium chlorite solution is the sodium chlorite aqueous solution that is 2%~40% by weight concentration; One of diamine tetramethylene phosphate or its mixture; the solution pH stabilizer is one of sodium percarbonate, sodium carbonate, sodium hydroxide, borax or its mixture; the anti-heat agent is sulfuric acid Potassium, potass...

Embodiment 1

[0023] Measure 98.0kg of sodium chlorite solution, add 0.2kg of diamine tetramethylene phosphate, 0.2kg of sodium percarbonate, 0.1kg of potassium sulfate, and 0.8kg of fatty alcohol polyoxyethylene ether in sequence, mix well, let stand, and remove the precipitate , to obtain the product of the present invention, and then pack it.

Embodiment 2

[0025] Measure 95.0kg of sodium chlorite solution, add 0.1kg of diethylenetriamine pentacarboxylate, 0.08kg of borax, 0.2kg of potassium nitrate, and 0.5kg of alkylphenol polyoxyethylene ether in sequence, mix well, let stand, and remove the precipitate , to obtain the product of the present invention, and then pack it.

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PUM

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Abstract

The invention relates to a method for preparing a stable sodium chlorite solution, which comprises the following steps of: weighing 95.0-99.9 parts of sodium chlorite solution, 0.01-1.0 part of heavy metal ion complexing agent, 0.01-1.0 part of solution pH value stabilizer, 0-1.0 part of heat-resistant agent and 0-2.0 parts of photoresist; adding into a reactor in sequence, mixing uniformly, and standing still; and finally removing precipitates to obtain the stable sodium chlorite solution product. The method has the advantage of simple process and is safe for production, and the prepared product is stable and has long quality guarantee period.

Description

technical field [0001] The invention belongs to the technical field of bleaching agents and disinfectants, and in particular relates to a preparation method of a stable sodium chlorite solution. Background technique [0002] Sodium chlorite is a new type of high-efficiency bleaching agent and oxidizing bactericide. It is also an industrial wastewater and waste gas treatment agent. It is often made into sodium chlorite solution in industrial use. Its oxidation potential is between sodium chlorite and peroxide Hydrogen is a kind of mild bleaching agent, which can get good whiteness and strength after bleaching, which is unmatched by other bleaching agents. Dissolve lignin and pectin and retain a large amount of fat wax, bleached thick fabrics feel soft, sodium chlorite solution is suitable for pulp and various fibers (cotton, acetate, rayon, polypropylene, polyester, nylon, etc.) Bleach works well. Sodium chlorite solid is very stable under normal conditions, but the stabili...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D06L3/08D21C9/14A01N59/00A01N25/30A01N25/22A01P1/00D06L4/26
Inventor 吴海霞王奎涛
Owner HEBEI UNIVERSITY OF SCIENCE AND TECHNOLOGY