Method for decomposing sodium hypochlorite

A technology of sodium hypochlorite and sodium hypochlorite solution, applied in the field of decomposition and recovery of sodium hypochlorite, decomposition of sodium hypochlorite, can solve the problem of not being able to discharge at will, and achieve the effect of obvious economic and social benefits

Inactive Publication Date: 2019-02-15
PANZHIHUA STEEL ENTERPRISES XINYU CHEM
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, due to regional factors, there is no market demand for sodium hypochlorite solution

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0021] In the normal production process of a chlor-alkali enterprise, about 100 tons of sodium hypochlorite solution containing 10% available chlorine will be produced every month, but sodium hypochlorite has no market in this chlor-alkali area. Therefore, it is necessary to find a reasonable way to treat sodium hypochlorite so as not to restrict the normal production of chlor-alkali.

[0022] Adopt the inventive method, utilize existing chlorate decomposition system to decompose and process sodium hypochlorite solution:

[0023] Step 1: Confirm whether the switching status of all valves is correct, the manual valves before and after the regulating valve are opened, the regulating valve is closed, and the bypass valve is closed.

[0024] Step 2: Confirm that the valve from the decomposition tank to the chlorine main pipe is closed, and open the valve from the decomposition tank to the waste chlorine pipeline.

[0025] Step 3: Start the sodium hypochlorite pump, and control th...

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PUM

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Abstract

The invention belongs to the field of chlor-alkali production, specifically to a method for decomposing sodium hypochlorite. The invention aims to provide a method for decomposing sodium hypochlorite,which comprises the step of adding hydrochloric acid into a sodium hypochlorite solution to adjust the pH value of the system to 1-2 for reaction. The method provided by the invention can effectivelydecompose sodium hypochlorite, and the decomposition rate can reach 99%.

Description

technical field [0001] The invention belongs to the field of chlor-alkali production, and in particular relates to a method for decomposing sodium hypochlorite, in particular to a method for decomposing and recovering sodium hypochlorite produced in a tail gas system during the chlor-alkali production process. Background technique [0002] Sodium hypochlorite has a wide range of uses, mainly used in bleaching, industrial wastewater treatment, papermaking, textiles, pharmaceuticals, fine chemicals, sanitation and disinfection and many other fields. For example, in the field of water treatment, it can be used as a water purifier, disinfectant, and bactericide; in the paper and textile industries, it can be used for pulp bleaching, fiber decolorization, deodorization, and sterilization. [0003] In the chlor-alkali production process, it is necessary to use about 17% sodium hydroxide to absorb the waste chlorine gas in each process. After the absorption is saturated, sodium hyp...

Claims

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Application Information

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IPC IPC(8): C01D3/04C01B7/01C25B1/34
CPCC01B7/01C01D3/04C25B1/34
Inventor 唐润兵王永明徐遵尚蒲荣辉陈映志
Owner PANZHIHUA STEEL ENTERPRISES XINYU CHEM
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