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A kind of preparation method of chlorine dioxide
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A chlorine dioxide and carbon dioxide technology, applied in the direction of chlorine dioxide, chlorine oxide, etc., can solve the problems of easy pollution of the environment, high treatment cost, and easy mixing of products, and achieve environmental friendliness, low treatment cost and stable reaction Effect
Inactive Publication Date: 2019-01-11
湖北华冠中科生物药业有限公司
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[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
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Embodiment 1
[0019] A kind of preparation method of chlorine dioxide in the present embodiment, comprises the following steps:
[0020] First, add the reaction mixture in the container and close the feed port, the reaction mixture is made up of the following raw materials in weight percentage: 2% sodium chlorite, 14% sodium hypochlorite and 84% water;
[0021] Then feed carbon dioxide into the container at a flow rate of 1.2 liters / minute for reaction, and when the reaction produces yellow-green gas, react for another 80 minutes to end the reaction. After the reaction, the gas obtained from the reaction is blown or blown into the liquid or space to be sterilized by a fan to sterilize the liquid or space.
Embodiment 2
[0023] A kind of preparation method of chlorine dioxide in the present embodiment, comprises the following steps:
[0024] First add reaction mixture in container and close feed inlet, described reaction mixture is made up of the raw material of following percentage by weight: sodium chlorite 15%, sodium hypochlorite 7% and water 78%;
[0025] Then feed carbon dioxide into the container to react at a flow rate of 20 liters / minute. When the reaction produces yellow-green gas, react for another 30 minutes to end the reaction; Disinfected liquid or space for disinfection of liquid or space.
Embodiment 3
[0027] A kind of preparation method of chlorine dioxide in the present embodiment, comprises the following steps:
[0028] First, add the reaction mixture in the container and close the feed port, the reaction mixture is composed of the following raw materials in weight percentage: 31% sodium chlorite, 0.9% sodium hypochlorite and 68.1% water;
[0029] Then feed carbon dioxide into the container at a flow rate of 0.5 liters / minute for reaction. When the reaction produces yellow-green gas, react for another 90 minutes to end the reaction; space for disinfection of liquids or spaces.
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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 disinfectant production, in particular to a preparation method of chlorine dioxide. Background technique [0002] Chlorine dioxide is a green bactericidal disinfectant that is increasingly concerned and favored by people. It has broad-spectrum, efficient and safe disinfection and killing characteristics and advantages against various bacteria and viruses. Chlorine dioxide is recognized by the World Health Organization (WHO) as the fourth-generation A1-type disinfectant, which is used in the fields of poultry, aquaculture disinfection, medical 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 needed. The current preparation methods of chlorine dioxide mainly include chemical method and electrolytic method. ...
Claims
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Application Information
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