Method for extracting bromine from brine

A brine and bromine technology, applied in bromine, bromine/hydrogen bromide and other directions, can solve problems such as inconvenience, and achieve the effects of simple equipment structure, cost saving, and reduction of raw material consumption

Inactive Publication Date: 2016-05-25
SHANDONG CHANGYI AOLI SALINIZATION CO LTD
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Problems solved by technology

[0005] In summary, there are obviously inconveniences and defects in

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  • Method for extracting bromine from brine

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Embodiment Construction

[0023] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.

[0024] see figure 1 , the invention provides a kind of method extracting bromine from brine, it comprises the following steps:

[0025] A, Acidification and oxidation step: pump brine into the static mixer through the brine pump, add dilute acid to the static mixer for acidification treatment, so that the pH value after acidification is in the range of 3.5 to 4.0, the static mixer is an internal device There is a spiral deflector, which increases the contact area of ​​the reaction materials and makes the acidification reaction more complete; the acidified brine is introduced into the oxidation tow...

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Abstract

The invention belongs to the technical field of bromine production processes, and provides a method for extracting bromine from brine. The brine is sequentially subjected to an acidizing and oxidizing step, a blowout step, an enriching step, a distilling step and a separating step to extract bromine. The method is simple and convenient to operate, the acidizing efficiency is improved, energy saving and emission reducing are achieved, the requirement for environment protection is met, and cost is reduced. The utilization rate of chlorine is increased, chlorine is saved, and raw material consumption is reduced.

Description

technical field [0001] The invention relates to the technical field of bromine production technology, in particular to a method for extracting bromine from brine. Background technique [0002] Bromine is one of the important chemical raw materials and the main branch of the marine chemical industry. A wide variety of inorganic bromides, bromates and bromine-containing organic compounds derived from it have special value in the development of national economy and science and technology. Bromine is an important material in the chemical industry, mainly used to prepare bromide, and used for general analysis in medicine, pesticides, dyes, spices, photographic materials, fire extinguishing agents, ore dressing, metallurgy, leather tanning, water purification and other departments Reagents, oxidants, absorbents for ethylene and heavy hydrocarbons, and bromination agents for organic synthesis. [0003] In the production of bromine, brine is first extracted by a brine pump, and dil...

Claims

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Application Information

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IPC IPC(8): C01B7/09
CPCC01B7/096
Inventor 李东松董胜杰任当进宋健
Owner SHANDONG CHANGYI AOLI SALINIZATION CO LTD
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