Novel production process of sodium hypochlorite

A sodium hypochlorite and production process technology, applied in the direction of hypochlorous acid and hypochlorite, can solve problems such as unstable quality, high operating intensity, and inability to achieve real-time monitoring, so as to improve quality stability, accuracy, The effect of reducing the work intensity of employees

Inactive Publication Date: 2015-12-30
ZHEJIANG OCEANKING DEVELOPMENT CO LTD
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AI Technical Summary

Problems solved by technology

It is characterized by high operating intensity and unstable quality, and due to the fast flow rate of the tested solution during the detection process, stable real-time monitoring cannot be achieved.

Method used

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  • Novel production process of sodium hypochlorite
  • Novel production process of sodium hypochlorite
  • Novel production process of sodium hypochlorite

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Embodiment Construction

[0020] A kind of production technique of novel sodium hypochlorite, comprises the following steps,

[0021] a. Dilute 32% sodium hydroxide with water to 20% sodium hydroxide,

[0022] b. Put the diluted sodium hydroxide solution into the cooler to cool down, pass the condensed product into the falling film absorption tower, and pass chlorine gas into the falling film absorption tower for reaction, the reaction temperature is 10-30°C, and the reaction product available chlorine is 7% ~ 8.5% sodium hypochlorite solution,

[0023] c. Cool the sodium hypochlorite solution through a cooler, pass the condensed product into the packed absorption tower, add chlorine gas into the packed absorption tower, and the reaction temperature is 10-30°C to obtain a sodium hypochlorite solution with 9%-10.5% available chlorine in the reaction product,

[0024] d. The sodium hypochlorite solution after the reaction enters the cooler for cooling, and passes into the finished product storage ta...

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Abstract

The invention discloses a novel production process of sodium hypochlorite. The problem that in a circulating process, analysis staff ceaselessly detect the concentration of sodium hypochlorite till sodium hypochlorite in a sodium hypochlorite circulating tank is qualified is solved. According to the technical scheme, sodium hydroxide with the concentration of 32% is diluted by water into sodium hydroxide with the concentration of 20%, two orp detecting devices are arranged and each comprise a noble electrode and a reference electrode, the noble electrode of one orp detecting device is introduced into a sodium hydroxide solution in front of a falling film absorption tower, the reference electrode of the orp detecting device is introduced into reaction products in the falling film absorption tower, the noble electrode of the other orp detecting device is introduced into a sodium hydroxide solution in front of a filler absorption tower, the reference electrode of the orp detecting device is introduced into the reaction products in the falling film absorption tower, and the noble electrodes and the reference electrodes detect the detected volume through a flow speed reduction device. The work intensity of the staff is lowered, the yield is increased, and the quality stability of products is improved.

Description

technical field [0001] The present invention relates to the production field of sodium hypochlorite, more specifically, it relates to a kind of production technology of novel sodium hypochlorite. Background technique [0002] Sodium hypochlorite is a high-efficiency oxidant and chlorine-containing disinfectant. It is used as a bleaching agent, oxidizing agent and water purifier for papermaking, textile, light industry, etc. It has the functions of bleaching, sterilization and disinfection. It has strong oxidation ability, fast action and good effect, and its functions are very extensive. Its preparation methods mainly include brine electrolysis, chlorine gas and sodium hydroxide contact reaction. [0003] Existing sodium hypochlorite production technology is batch production. The main process is a sodium hydroxide high-level tank, a packed absorption tower, and a sodium hypochlorite circulation tank. The sodium hydroxide high-level tank is made into sodium hydroxide with a...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C01B11/06
Inventor 邬优红孙毅姚迪俞狄
Owner ZHEJIANG OCEANKING DEVELOPMENT CO LTD
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