Device and method for analyzing chlorine in light salt brine

An analysis device and a technology for light salt water, which are applied in the field of analysis devices for chlorine gas in light salt water, can solve the problems of damaging the resin of the secondary salt water filter element, hinder the formation of sediments, and cause great harm, achieve good economic benefits, and reduce the use of hydrochloric acid. , the effect of reducing processing costs

Pending Publication Date: 2022-07-08
NINGXIA YINGLITE CHEMICALS CO LTD
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  • Abstract
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  • Claims
  • Application Information

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Problems solved by technology

Because the free chlorine in the electrolytic light brine has a strong oxidizing property, if the light brine containing free chlorine is returned from the electrolysis process to the brine refining, it will oxidize and corrode the pipes and equipment in the brine refining system, and hinder the sediment in the brine refining process The formation of the secondary brine filter element and the resin in the resin tower are damaged, which is extremely harmful

Method used

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  • Device and method for analyzing chlorine in light salt brine
  • Device and method for analyzing chlorine in light salt brine

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Embodiment Construction

[0026] see figure 1 , The embodiment of the present invention provides a desorption device for chlorine in brackish water, including an analysis tank 8, and a salt storage tank 4 connected to the analysis tank 8 by a pipeline is arranged on the upper part of the analysis tank 8. A plug-in valve 5 that can be opened and closed is provided in the pipeline between the salt storage tank 4 and the analysis tank 8 . By switching the plug-in valve 5 , it is possible to control whether the refined salt in the salt storage tank 4 can be discharged into the analysis tank 8 or not. . At the same time, a star-shaped feeder 6 is also provided at the lower part of the flap valve 5 in the pipeline between the salt storage tank 4 and the analysis tank 8, and the star-shaped feeder 6 can control the refining discharged into the analysis tank 8. amount of salt.

[0027] see figure 2 , as a specific embodiment of the present invention, the bottom of the salt storage tank 4 is a conical pipe ...

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Abstract

The invention provides a desorption device for chlorine in light salt brine, which comprises a desorption tank and a salt storage tank arranged at the upper part of the desorption tank and connected with a pipeline of the desorption tank, one side of the upper part of the desorption tank is connected with a pipeline of a light salt brine conveying device, and the other side of the upper part of the desorption tank is connected with a pipeline of a cooler; the bottom of the cooler is connected with the analysis tank through a condensate water backflow pipeline, and the lower side part of the analysis tank is connected with a brine salt dissolving device through a strong brine output pipeline. The invention also provides a method for analyzing chlorine in light salt brine. The desorption device and the desorption method for chlorine in light salt brine provided by the invention are simple, efficient and relatively low in treatment cost.

Description

technical field [0001] The invention relates to the technical field of dechlorination of light salt water in the production process of sodium hydroxide, in particular to a device for analyzing chlorine in light salt water and a method for analyzing the same. Background technique [0002] In the process of electrolyzing sodium chloride brine to produce caustic soda, chlorine-containing light brine will be produced in the anode chamber of the electrolytic cell, and these light brine will circulate in a closed circuit between the brine refining and electrolysis processes. Due to the strong oxidizing property of free chlorine in the electrolytic fresh brine, if the fresh brine containing free chlorine is returned from the electrolysis process to the brine purification, it will oxidize and corrode the pipes and equipment in the brine purification system, and hinder the sediment in the brine purification process. The formation of the secondary brine filter element and the resin in...

Claims

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Application Information

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Patent Type & AuthorityApplications(China)
IPC IPC(8): C25B1/34C25B15/08C01B7/07
CPCC25B1/34C25B15/08C25B15/083C01B7/0743
Inventor邓建民杨国强史河宁
OwnerNINGXIA YINGLITE CHEMICALS CO LTD