Device, method and system for converting salts into acids and alkalis

An acid-base and salt solution technology, applied in chemical instruments and methods, water/sewage treatment, osmotic/dialysis water/sewage treatment, etc., and can solve problems such as difficult treatment of industrial salts

Pending Publication Date: 2019-09-13
SHANGHAI ANJIANG ENVIRONMENTAL PROTECTION TECH PARTNERSHIP (LLP)
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0006] The invention provides a device, method and system for converting salt into acid-base, to solve the problem that industrial salt is difficult to handle

Method used

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  • Device, method and system for converting salts into acids and alkalis
  • Device, method and system for converting salts into acids and alkalis
  • Device, method and system for converting salts into acids and alkalis

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0056] Embodiment 1, the salt of this embodiment is converted into the device of acid-base, can convert salt into a mixture of alkali and salt (because it cannot be completely decomposed, contains a small amount of salt, which can meet industrial use) and acid, in the collector channel Hydrogen ions (hydroxide) dissociate into the electrode solution and are adsorbed by the electrode. A salt solution passes through the liquid flow channel between the anion exchange membrane and the anion exchange membrane. Electrode migration, due to the selective permeation and barrier effect of the membrane, the hydroxide (hydrogen ion) dissociated from the bipolar ion exchange membrane in the liquid flow channel between the bipolar ion exchange membrane and the anion exchange membrane Pairing forms acid and base and salt mixtures, respectively, which are discharged with the liquid stream. The liquid electrode with hydrogen ions (hydroxide) adsorbed in the collector channel is transported to ...

Embodiment 2

[0057] Embodiment 2, the method for converting the salt of the present embodiment into an acid-base can convert the salt into a mixture of alkali and salt (because it cannot be completely decomposed, it contains a small amount of salt, which can satisfy industrial use) and acid, in the collector channel Hydrogen ions (hydroxide) dissociate into the electrode solution and are adsorbed by the electrode. A salt solution passes through the liquid flow channel between the anion exchange membrane and the anion exchange membrane. Electrode migration, due to the selective permeation and barrier effect of the membrane, the hydroxide (hydrogen ion) dissociated from the bipolar ion exchange membrane in the liquid flow channel between the bipolar ion exchange membrane and the anion exchange membrane Pairing forms acid and base and salt mixtures, respectively, which are discharged with the liquid stream. The liquid electrode with hydrogen ions (hydroxide) adsorbed in the collector channel ...

Embodiment 3

[0062] Embodiment 3, the salt of this embodiment is converted into the device of acid-base, can convert salt into the mixture of acid and salt (because it cannot be completely decomposed, it contains a small amount of salt, which can satisfy industrial use) and alkali, in the collector channel Hydrogen ions (hydroxide) dissociate into the electrode solution and are adsorbed by the electrode. A salt solution passes through the liquid flow channel between the cation exchange membrane and the bipolar ion exchange membrane. Under the action, it migrates to the positive and negative electrodes respectively. Due to the selective permeation and barrier effect of the membrane, the hydrogen dissociated from the bipolar ion exchange membrane in the liquid flow channel between the bipolar ion exchange membrane and the cation exchange membrane Oxygen radicals (hydrogen ions) are paired to form bases and mixtures of acids and salts, which are discharged with the liquid flow. The liquid ele...

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Abstract

The invention provides a device, method and system for converting salts into acids and alkalis. Water having a certain salt concentration flows through a treatment module composed of ion exchange membranes, an electrode, an isolation material, a fixing piece and corresponding pipe fittings, so that salt ions in the water migrate towards different polarity directions by virtue of the action of a direct-current electric field, and are separately recombined to form acids and alkalis in different flow paths by virtue of blocking and penetrating effects of various ion exchange membranes, so that acid liquor and alkali liquor can be obtained at the outlet of the module. The acid liquor and alkali liquor can be directly applied to industrial production or furthermore concentrated and utilized.

Description

[0001] 【Technical field】 [0002] The invention relates to the field of environmental protection recycling and reuse, in particular to a device, method and system for converting salt into acid and alkali. [0003] 【Background technique】 [0004] The development of modern industry is accompanied by the continuous deterioration of the natural environment. For the sustainable survival of human beings, it is urgent to reduce industrial pollution and realize the recycling of resources. Among all kinds of industrial pollution, water pollution is a prominent problem. About 40% of China's fresh water consumption is in the industrial field, which not only consumes very precious water resources, but also causes huge pollution to rivers, lakes and seas, and the crisis is serious. In recent years, with the deepening understanding of the environment and resource protection from all walks of life in the society, protecting the environment and cherishing resources has gradually become the co...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F1/461C02F1/44
CPCC02F1/46104C02F1/44C02F2201/46115
Inventor 孙晓慰
Owner SHANGHAI ANJIANG ENVIRONMENTAL PROTECTION TECH PARTNERSHIP (LLP)
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