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Composite ClO2 generating process

A chlorine dioxide and oxidant technology, applied in chlorine oxide, sterilization/microdynamic water/sewage treatment and other directions, can solve the problems of high cost, unstable reaction, unsatisfactory chlorine dioxide yield, etc. high rate effect

Inactive Publication Date: 2004-06-23
天津华特环保技术开发有限公司
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Problems solved by technology

The disadvantage of this method is that the reaction is not smooth, the cost is high and the yield of chlorine dioxide is not satisfactory

Method used

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  • Composite ClO2 generating process
  • Composite ClO2 generating process

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Embodiment Construction

[0018] In order to further understand the content, characteristics and effects of the present invention, the following examples are given, and detailed descriptions are as follows in conjunction with the accompanying drawings:

[0019] Using the production equipment disclosed in Chinese patent ZL97233737.7, sodium chlorate is used as the oxidant, sucrose and hydrochloric acid are used as the reducing agent, and the reaction is carried out in a hydrochloric acid medium, and the temperature is controlled at 71° C. during the entire reaction process. About 200 grams of sodium chlorate, 20 grams of sucrose and 400 grams of water are made into a mixed solution and wait to add diluted hydrochloric acid by volume ratio so that the concentration of hydrochloric acid is 28%. see figure 1 , Add the above-mentioned compounded materials into the reactor 1 to generate composite chlorine dioxide gas. The water ejector 2 works to generate negative pressure to make the reactor 1 operate unde...

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Abstract

The present invention is the method of generating ClO2 for sewage processing, and sodium chlorate is used as oxidant and hydrochloric acid and cane sugar are used as reductant. Sodium chlorate, cane sugar and water in the ratio of 1 to 0.05-0.1 to 2 are compounded into water solution, and the water solution is then mixed with hydrochloric acid in the equal volume ratio to form the liquid mixture. At 71 deg.c, the liquid mixture is added into ClO2 generator and gaseous mixture of ClO2 and Cl2 is generated in negative and aeration conditions. Compared with available technology, the present invention has the advantages of low production cost, high material utilization and high ClO2 yield.

Description

technical field [0001] The invention belongs to a method for generating chlorine dioxide for sewage treatment, in particular to a method for generating composite chlorine dioxide. Background technique [0002] Chlorine dioxide is a broad-spectrum bactericidal disinfectant. Chlorine gas is also a widely used disinfectant at present, and the combined use of the two, that is, the use of compound chlorine dioxide, can better play a disinfection role. The currently known negative pressure aeration chlorine dioxide generating device for sewage treatment is the main device in the chemical method chlorine dioxide generating device, and the raw materials used in this production process are sodium chloride as the oxidizing agent and hydrochloric acid as the reducing agent . The disadvantage of this method is that the reaction is not smooth, the cost is high and the yield of chlorine dioxide is not satisfactory. Contents of the invention [0003] In order to solve the technical pro...

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Application Information

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IPC IPC(8): C01B11/02C02F1/50
Inventor 刘敬荣阎永忠毛红霞
Owner 天津华特环保技术开发有限公司
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