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Device for regenerating potassium ion sieve through electric driving method and application of device

A potassium ion, electric drive technology, applied in the field of potassium extraction from seawater, can solve the problems of incomplete regeneration, low efficiency, cumbersome steps, etc., and achieve the effect of high strength and high efficiency

Inactive Publication Date: 2017-01-25
BEIJING ORIGIN WATER FILM TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, this method has the disadvantages of time-consuming (more than 24 hours), cumbersome steps (soaking in acid, multiple washings with water), low efficiency, incomplete regeneration, etc. Regeneration under certain conditions will produce a large amount of nitric acid waste liquid, which is extremely unfavorable to the environment and fails to meet the requirements of green chemical industry and circular economy

Method used

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  • Device for regenerating potassium ion sieve through electric driving method and application of device
  • Device for regenerating potassium ion sieve through electric driving method and application of device
  • Device for regenerating potassium ion sieve through electric driving method and application of device

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Comparison scheme
Effect test

Embodiment 1

[0110] Embodiment 1: Electric drive method regeneration potassium ion sieve device of the present invention

[0111] The implementation mode of this embodiment is as follows:

[0112] The device for regenerating the potassium ion sieve by the electric drive method of the present invention comprises a tank body 1 , a regenerating liquid outlet 7 and a regenerating liquid inlet 13 . The device also includes stainless steel mesh anode 3, DC stabilized power supply 4, silicone gasket 5, stainless steel mesh cathode 6, polyester filter cloth 8, potassium ion sieve 9, air pump 10 and air inlet 11;

[0113] Tank body 1 is a cylinder made of plexiglass with a ratio of height to diameter of 1:5. The tank body 1 is composed of an upper tank body 1-1, a lower tank body 1-2 and a tank bottom 1-3; an air inlet 11 connected to an air pump 10 and a regeneration liquid inlet 13 are arranged on the top of the upper tank body 1-1; The regeneration liquid outlet 7 is set in the center of the t...

Embodiment 2

[0118] Embodiment 2: Electric drive method regeneration potassium ion sieve device of the present invention

[0119] The implementation mode of this embodiment is the same as embodiment 1, except that the tank body 1 is a cylinder made of plexiglass or stainless steel with a ratio of height and diameter of 1:8, and the mesh size is installed in the silica gel sealing gasket 5-1. 100-mesh stainless steel mesh anode 3; the mesh size is 100 mesh stainless steel mesh cathode 6 installed in the silica gel sealing gasket 5-2; the voltage of the DC stabilized power supply 4 is 12V, and the current density is 16mA / cm 2 . The concentration in the tank body 1 is to form an air chamber 12 between the 2 liquid levels of the 4% sodium nitrate aqueous solution by weight and the upper end of the upper tank body 1-1; the distance between the 2 liquid levels of the regeneration liquid and the stainless steel mesh anode 3 is 5 times the height of potassium ion sieve 9.

Embodiment 3

[0120] Embodiment 3: Electric drive method regeneration potassium ion sieve device of the present invention

[0121] The implementation mode of this embodiment is the same as embodiment 1, except that the tank body 1 is a cylinder made of plexiglass or stainless steel with a ratio of height and diameter of 1:10, and the mesh size is installed in the silica gel sealing gasket 5-1. 400-mesh stainless steel mesh anode 3; a mesh size of 1000-mesh stainless steel mesh cathode 6 is installed in the silicone gasket 5-2; the voltage of the DC stabilized power supply 4 is 18V, and the current density is 12mA / cm 2 . The concentration in the tank body 1 is to form an air chamber 12 between the 10% sodium sulfate aqueous solution regeneration liquid 2 liquid level and the upper tank body 1-1 upper end by weight; the distance between the regeneration liquid 2 liquid level and the stainless steel mesh anode 3 is 4 times the height of potassium ion sieve 9.

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Abstract

The present invention relates to an electric drive regeneration potassium ion sieve device, which comprises stainless steel mesh anode 3, DC stabilized voltage power supply 4, silica gel sealing pad 5, stainless steel mesh cathode 6, polyester filter cloth 8, potassium ion sieve 9 and the like. Compared with the method for regenerating potassium ion sieve with traditional concentrated nitric acid, the electric drive method regeneration device of the present invention has the characteristics of saving time and high regeneration efficiency, and the electric drive method regeneration potassium ion sieve device of the present invention can realize complete regeneration in 20 minutes; It takes more than 24 hours to regenerate the potassium ion sieve by the nitric acid method, and the time is saved dozens of times. The concentrated nitric acid method utilizes 6mol / L concentrated nitric acid to regenerate for 20min, and the regeneration rate is 22.1%, while the electric drive method of the present invention regenerates the potassium ion sieve device at a current density of 15mA / cm 2 The regeneration rate in the next 20 minutes reaches 97.9%, which is much higher than the regeneration rate of the concentrated nitric acid method.

Description

[0001] 【Technical field】 [0002] The invention belongs to the technical field of potassium extraction from seawater. More specifically, the present invention relates to a device for regenerating a potassium ion sieve by an electric drive method, and also relates to the application of the device for regenerating a potassium ion sieve by an electric drive method. [0003] 【Background technique】 [0004] Obtaining potassium from seawater is the main source of metallic potassium resources. Potassium ion adsorption using potassium ion sieve is currently a main method for obtaining potassium. However, once the potassium ion sieve adsorbs potassium ions to saturation, regeneration is difficult, and the regeneration is often incomplete, resulting in a gradual decrease in the adsorption capacity of the potassium ion sieve. The large-scale application of potassium ion sieves to the seawater potassium extraction process must consider the recycling of potassium ion sieves, and multiple ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01J20/34C22B26/10
CPCB01J20/3441C22B26/10
Inventor 陈亦力李锁定李天玉莫恒亮张国军高士强杨志涛
Owner BEIJING ORIGIN WATER FILM TECH
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