Portable universal type chlorine dioxide generator and its application

A chlorine dioxide and generator technology, applied in the direction of chlorine oxidation, etc., can solve the problems of transportation, inconvenient operation, low conversion rate of raw materials, complex equipment structure, etc., and achieve the effect of light weight, high conversion rate of raw materials and small volume of the device

Inactive Publication Date: 2014-02-26
DALIAN JIAOTONG UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The disadvantages of the above-mentioned reactors are low reaction speed, low conversion rate of raw materials, complicated equipment structure and large volume.
The most prominent problem is that the raw materials used are hydrochloric acid or sulfuric acid, which are highly corrosive and irritating, inconvenient for transportation and operation, and have potential safety hazards

Method used

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  • Portable universal type chlorine dioxide generator and its application
  • Portable universal type chlorine dioxide generator and its application
  • Portable universal type chlorine dioxide generator and its application

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0037] One embodiment of the present invention is that reaction raw material sodium chlorite solid and water are by the first supply unit 1, raw material pump 2, enter in the reactor 4 through the first raw material inlet pipe 7 along the tangential direction of the pipe wall of the lower part of the reactor; At the same time, the raw material sodium bisulfate solid and water enter the reactor 4 through the second raw material inlet pipe 8 by the second supply unit 5 and the raw material pump 3, and are fully mixed with the sodium chlorite at the discharge end of the first raw material inlet pipe 7. After being mixed and heated by the heater 10, the temperature rises rapidly and then enters the middle part of the reactor 4 equipped with titanium wire packing 12. The chlorine dioxide gas generated after the raw materials are fully reacted is dissolved in water to form an aqueous solution, which is directly output to the outside of the reactor box 6 through the outlet pipe 9 .

Embodiment 2

[0039] Another embodiment of the present invention reacts raw material sodium chlorate aqueous solution by the first supply unit 1, raw material pump 2, enters in the reactor 4 through the first raw material inlet pipe 7 along the pipe wall tangential direction of reactor 4 bottom; Meanwhile, The raw material hydrochloric acid enters the reactor 4 through the second raw material inlet pipe 8 from the second supply unit 5 and the raw material pump 3, fully mixes with the sodium chlorate aqueous solution at the outlet end of the first raw material inlet pipe 7, and heats up rapidly through the heater 10. After that, it enters the middle part of the reactor 4 equipped with titanium wire packing 12 . The raw materials are fully reacted to produce compound chlorine dioxide (that is, a mixture of chlorine dioxide and chlorine, usually ClO 2 :Cl 2 =2:1 (molar ratio, the reaction equation is: 2NaClO 3 +4HCl→2ClO 2 +Cl 2 +2NaCl+2H 2 O) is output to the outside of the reactor box 6...

Embodiment 3

[0041] Another embodiment of the present invention is that the reaction raw material sodium chlorite aqueous solution enters in the reactor 4 through the first raw material inlet pipe 7 along the tangential direction of the pipe wall of the lower part of the reactor by the first supply unit 1 and the raw material pump 2; Simultaneously, the raw material hydrochloric acid enters in the reactor 4 through the second raw material inlet pipe 8 by the second supply unit 5 and the raw material pump 3, fully mixes with the sodium chlorite aqueous solution at the outlet end of the first raw material inlet pipe 7, passes through the heater 10 After heating up rapidly, it enters the middle part of the reactor 4 equipped with titanium wire packing 12 . After the raw materials are fully reacted, a high-purity chlorine dioxide aqueous solution (≥98%) is output to the outside of the reactor box 6 through the outlet pipe 9 .

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Abstract

The invention discloses a portable universal type chlorine dioxide generator and its application. The generator includes a first raw material supply unit (1), a first raw material pump (2), a second raw material pump (3), a reactor (4) and a second raw material supply unit (5). The lower part of the reactor (4) is provided with a first material inlet pipe (7) and a second raw material inlet pipe (8). The first raw material supply unit (1), the first raw material pump (2), and the first raw material inlet pipe (7) are connected in order through a pipeline. The second raw material supply unit (5), the second raw material pump (3), and the second raw material inlet pipe (8) are connected in order through a pipeline. The upper part of the reactor (4) is equipped with an outlet pipe (9). The raw materials adopted by the device provided by the invention are all salts, do not contain highly corrosive hydrochloric acid or sulfuric acid, have low corrosivity, and are safe to transport and operate. Also, the reaction rate is fast and the raw material conversion rate is high. The device provided by the invention has the advantages of small volume, simple structure, light weight, and easy carry.

Description

technical field [0001] The invention relates to a generator for producing high-purity chlorine dioxide aqueous solution by chemical method, in particular to a portable universal chlorine dioxide generator and its application. Background technique [0002] Chlorine dioxide has strong reactivity and oxidation ability, and can be used as water treatment agent, disinfectant, pulp bleaching agent, leather depilatory agent, kerosene desulfurizer and food preservation agent, etc. Most of the generators currently on the market use sodium chlorate and hydrochloric acid as raw materials to produce chlorine dioxide. This generator is usually called a composite chlorine dioxide generator. Chlorine dioxide generators that use sodium chlorite and hydrochloric acid as raw materials are usually called high-purity chlorine dioxide generators. There are also complex reactors for the production of chlorine dioxide from other raw materials such as sodium chlorate, methanol, sulfuric acid or so...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C01B11/02
Inventor 田颖李伯骥鞠海洋
Owner DALIAN JIAOTONG UNIVERSITY
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