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Preparation method of chlorine dioxide

A chlorine dioxide and carbon dioxide technology, applied in chlorine dioxide, chlorine oxide and other directions, can solve the problems of easy environmental pollution, easy mixing of products, high processing cost, and achieve the effects of environmental friendliness, stable reaction and low processing cost.

Inactive Publication Date: 2016-10-12
湖北华冠中科生物药业有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In order to solve the technical problems of the existing methods for preparing chlorine dioxide that are easily mixed with strong acid gas, the treatment cost is high, and the environment is likely to be polluted, the present invention provides a method for preparing chlorine dioxide

Method used

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Examples

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Effect test

Embodiment 1

[0021] The method for preparing chlorine dioxide in this embodiment includes the following steps:

[0022] First, add the reaction mixture to the container and close the feed inlet. The reaction mixture is composed of the following raw materials in weight percentages: sodium chlorite 2%, sodium hypochlorite 14% and water 84%;

[0023] Then, carbon dioxide was introduced into the vessel at a flow rate of 1.2 liters / min to perform the reaction. When the reaction produced yellow-green gas, the reaction was completed for another 80 minutes. After the reaction is over, the gas obtained by the reaction is blown or blown into the liquid or space to be disinfected by a fan to disinfect the liquid or space.

Embodiment 2

[0025] The method for preparing chlorine dioxide in this embodiment includes the following steps:

[0026] First, add the reaction mixture into the container and close the feed inlet. The reaction mixture is composed of the following raw materials in weight percentage: sodium chlorite 15%, sodium hypochlorite 7% and water 78%;

[0027] Then, carbon dioxide was introduced into the vessel at a flow rate of 20 liters / min for the reaction. When the reaction produced yellow-green gas, the reaction was completed for another 30 minutes; after the reaction, the gas obtained by the reaction was blown by a fan or blown to the waiting room. Disinfect the liquid or space for disinfection of the liquid or space.

Embodiment 3

[0029] The method for preparing chlorine dioxide in this embodiment includes the following steps:

[0030] First, add the reaction mixture into the container and close the feed inlet. The reaction mixture is composed of the following raw materials in weight percentage: sodium chlorite 31%, sodium hypochlorite 0.9% and water 68.1%;

[0031] Then pass carbon dioxide into the container at a flow rate of 0.5 liters / min for reaction. When the reaction produces yellow-green gas, react for another 90 minutes to end the reaction; pass the gas obtained by the reaction into the liquid to be disinfected or blown by a fan. In the space, for liquid or space disinfection.

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Abstract

The invention provides a preparation method of chlorine dioxide, and belongs to the technical field of production of disinfectants. The preparation method comprises the following steps: adding a reaction mixed solution to a container, and closing a feeding opening, wherein the reaction mixed solution comprises 2-31wt% of chlorite, 0.9-14wt% of hypochlorite and 55-96wt% of water; introducing an activation gas to the container according to a flow velocity of 0.5-20L / min, reacting the reaction mixed solution with the activation gas, and ending the reaction 30-90min after a yellow green gas generates in the reaction process; and blowing a gas obtained after the reaction to a liquid or space to be disinfected through a fan in order to disinfect the liquid or space. The preparation method has the advantages of stable reaction, and control of the generation speed of the chlorine dioxide gas through controlling the gas flow of the activation gas. The chlorine dioxide gas prepared in the invention contains no strong acidic gases. A reaction residual liquid approaches neutrality, and is simple and easy to treat, so the residual liquid treatment cost is low, and the method is environmentally friendly.

Description

Technical field [0001] The invention relates to the technical field of production of disinfectants, in particular to a method for preparing chlorine dioxide. Background technique [0002] Chlorine dioxide is a green disinfectant that has received increasing attention and favored by people. It has broad-spectrum, efficient and safe disinfection and killing characteristics and advantages for various bacteria and viruses. Chlorine dioxide is recognized by the World Health Organization (WHO) as the fourth generation A1 disinfectant, which is used in poultry and aquaculture disinfection, medical and sanitation disinfection, tap water disinfection, pulp bleaching, and industrial wastewater treatment. [0003] Due to the chemical instability and explosiveness of chlorine dioxide, chlorine dioxide is not suitable for storage and must be prepared as it is used. The current preparation methods of chlorine dioxide mainly include chemical methods and electrolysis methods. Chemical methods ma...

Claims

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Application Information

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IPC IPC(8): C01B11/02
CPCC01B11/023
Inventor 赵亚琴李妙鱼崔小芳
Owner 湖北华冠中科生物药业有限公司
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