A pure chlorine dioxide gas-liquid automatic separation preparation device and preparation method

Abstract

The invention discloses a pure chlorine dioxide preparing device and method realizing automatic gas-liquid separation. The pure chlorine dioxide preparing device comprises a casing, a feeding system, a reaction system, an aeration system, a gas-liquid separation system, a secondary gas stripping system and a mother liquor collection system, wherein a reaction liquid reacts in a reactor and then enters a gas-liquid separator for gas-liquid separation, a product enters the secondary gas stripping system for secondary aeration and gas stripping, a gas returns to the upper part of the reactor, and a liquid enters a mother liquor collection tank to be drained. The yield of chlorine dioxide is improved, and the problem that disinfection is affected by the fact that a chlorine dioxide gas which is a product of a chlorine dioxide generator is fed into water together with the mother liquor is solved.

Description

technical field [0001] The invention relates to a pure chlorine dioxide gas-liquid automatic separation preparation device and method. Background technique [0002] As a strong oxidizing agent, chlorine dioxide has been developed in my country for more than 20 years, and various chlorine dioxide preparation technologies have made progress to a certain extent, especially the chemical preparation of chlorine dioxide technology. At present, most of the chlorine dioxide generators on the market are composite chlorine dioxide generators, which occupy a very important position in the field of water treatment. However, composite chlorine dioxide generators generally have the following disadvantages: low conversion rate of raw materials, secondary Chlorine oxide purity and yield are low. With the continuous improvement of environmental protection requirements, pure chlorine dioxide generators have begun to be developed. Two processes are generally used. One is sodium chlorite hydro...

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Problems solved by technology

At present, most of the chlorine dioxide generators on the market are composite chlorine dioxide generators, which occupy a very important position in the field of water treatment. However, composite chlorine dioxide generators generally have the following disadvantages: low conversion rate of raw materials, secondary The purity and yield of chlorine oxide are low

With the continuous improvement of environmental protection requirements, pure chlorine dioxide generators have begun to be developed. Two processes are generally used. One is sodium chlorite hydrochloric acid method. Due to the high price of sodium chlorite, the preparation cost is relatively high, and it is not widely used. Application; one is the three-way method of sodium chlorate sulfuric acid reducing agent. There are many three-way pure chlorine dioxide generators on the market at present. Due to different reducing agents, the conversion rate of raw materials, chlorine dioxide yield and purity are different. And there is the problem that chlorine dioxide gas and reaction solution are put into water body disinfection together, causing water body to be polluted

[0003] In view of the problems existing in the above-mentioned prior art, in order to solve the problem that the reaction liquid at the outlet of the chlorine dioxide equipment is easily brought into the water body, and in order to improve the purity and yield of chlorine dioxide, the present invention provides a pure gas-liquid automatic separation Chlorine dioxide preparation method and device, which is unprecedented in the field of chlorine dioxide generators

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