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Automatic adjustment technology of bromine production reduction absorption water

A technology that automatically adjusts and absorbs water. It is applied in the direction of bromine, hydrogen bromide, bromine/hydrogen bromide, etc. It can solve the problems of large fluctuations in bromine content, increased labor intensity of employees, and unstable distillation process. The effect of maintaining process control, reducing chlorine gas, and stabilizing process parameters

Inactive Publication Date: 2018-11-23
天津海晶科技发展有限公司
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Problems solved by technology

The disadvantages of this process are that the manual operation increases the labor intensity of the employees; the second is that the bromine content of the solution (finished soluti

Method used

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Embodiment 1

[0018] An automatic adjustment process for producing bromine reduction absorption water, comprising the following steps:

[0019] (ⅰ) Brine air blowing out acid method to extract bromine

[0020] Acidify the bromine-containing brine to a pH range of 3 to 4, and then introduce chlorine gas into it, the free bromine in the bromine-containing brine is oxidized by chlorine gas to form bromine molecules, which are blown out (analyzed) by air to form bromine-containing molecular gas;

[0021] (ii) Prepare the solution of hydrobromic acid (complete solution)

[0022] Blow out sulfur dioxide gas in the liquid after blowing out analysis in step (i), pump in reducing absorption water simultaneously, generate the solution (complete liquid) that main component is hydrobromic acid, be used for distilling bromine;

[0023] (ⅲ) Control the flow rate of reducing absorption water

[0024] Control step (ii) reduces the flow rate of absorbing water, guarantees that the main component of making...

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Abstract

The invention discloses an automatic adjustment technology of bromine production reduction absorption water. The automatic adjustment technology of the bromine production reduction absorption water comprises the following steps of (1) bromine extraction through a brine air blow-out acid method, (2) hydrobromic acid solution (complete liquid) preparation, (3) reduction absorption water flow rate control and (4) online complete liquid baume degree monitoring. According to the automatic adjustment technology of the bromine production reduction absorption water, under a condition that a corresponding relationship between the complete liquid bromine content and a baume degree numerical value of complete liquid exists, an online detection instrument is used for conducting online baume degree detection and analysis on the complete liquid subjected to reduction absorption in a reduction absorption device in a bromine production process, the complete liquid baume degree in a system is set in aspecified value range, through a sensor, analyzed data is subjected to signal transmission, then through a PLC, the reduction absorption water flow rate is controlled, the complete liquid baume degreewithin a set value is guaranteed, the stable complete liquid bromine content is achieved, and the automatic adjustment technology of the bromine production reduction absorption water is achieved.

Description

technical field [0001] The invention belongs to a process for adjusting the Baumé degree of the finished liquid for distillation in the production of bromine extraction by air blowing out of brine, in particular to an automatic adjustment process for producing bromine and reducing absorption water. Background technique [0002] The bromide ion in the bromine brine is blown out by air blown out by the acid method, and the bromide ion is oxidized and blown out by the chlorine gas for analysis, and the free bromine generated is reduced and absorbed by using sulfur dioxide gas and water; Solution percent bromine content. Mainly in the process, the absorption water flow rate is controlled by stage time to carry out the reduction absorption, and then the bromine content of the solution (finished solution) generated mainly by hydrobromic acid is analyzed by laboratory analysis. When the raw material brine is changed or the production process is unstable, the bromine content of the...

Claims

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Application Information

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IPC IPC(8): C01B7/09
CPCC01B7/093C01B7/096
Inventor 张冬升杨金水张连军左玉伟王法刘艺段景成
Owner 天津海晶科技发展有限公司
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