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Circulating oil removal method for cobalt chloride solution

A technology of cobalt chloride and solution, applied in the field of circulating oil removal of cobalt chloride solution, can solve the problems of difficult operation of activated carbon and fiber ball regeneration, unstable oil removal rate, difficult to meet high requirements, etc., and improve the oil removal rate. The effect of oil removal stability, lifting effect, and low power consumption

Pending Publication Date: 2022-03-15
GEM JIANGSU COBALT IND CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The traditional ultrasonic, air flotation, activated carbon, and fiber ball oil removal processes have some disadvantages: the removal rate of oil in the solution is unstable, and it is difficult to meet high requirements (such as TOC below 30mg / L), and the process is long. The activated carbon , The regeneration of fiber balls is difficult to operate, the power consumption is large, the labor intensity is high, etc., and dangerous solid waste will be generated, which will increase the operating cost

Method used

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  • Circulating oil removal method for cobalt chloride solution
  • Circulating oil removal method for cobalt chloride solution
  • Circulating oil removal method for cobalt chloride solution

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0043] In this embodiment 1, if figure 1 As shown, after the cobalt chloride solution is lifted by the pump, it is 3 The flow rate per hour passes through a cloth bag filter with a filtration precision of 5 μm and a white ball filter with a filtration precision of 3 μm for two-stage filtration; the filtered cobalt chloride solution is sent to a resin adsorption column equipped with a TOC removal resin, and then chlorinated The TOC in the cobalt solution is adsorbed by the resin to obtain the cobalt chloride solution after removing the TOC; after the resin is saturated, the residual cobalt chloride solution in the resin adsorption column is first compressed to the cobalt chloride stock solution tank, and then 12m 3 The pure water with a conductivity of less than 200 μS / cm washes the resin adsorption column to wash out the residual cobalt chloride on the surface of the resin.

[0044] Blow off: After washing with water, feed steam, control the temperature at 120°C, and blow off...

Embodiment 2

[0048] After the cobalt chloride solution is lifted by the pump, the 3 The flow rate per hour passes through a cloth bag filter with a filtration precision of 5 μm and a white ball filter with a filtration precision of 3 μm for two-stage filtration; the filtered cobalt chloride solution is sent to a resin adsorption column equipped with a TOC removal resin, and then chlorinated The TOC in the cobalt solution is adsorbed by the resin to obtain the cobalt chloride solution after removing the TOC; after the resin is saturated, the residual cobalt chloride solution in the resin adsorption column is first compressed to the cobalt chloride stock solution tank, and then the 18m 3 The pure water with a conductivity of less than 200 μS / cm washes the resin adsorption column to wash out the residual cobalt chloride on the surface of the resin.

[0049] Blow off: After washing with water, feed steam, control the temperature at 135°C, and blow off the resin adsorption column. The blow off ...

Embodiment 3

[0053] After the cobalt chloride solution is lifted by the pump, the 3The flow rate per hour passes through a cloth bag filter with a filtration precision of 5 μm and a white ball filter with a filtration precision of 3 μm for two-stage filtration; the filtered cobalt chloride solution is sent to a resin adsorption column equipped with a TOC removal resin, and then chlorinated The TOC in the cobalt solution is adsorbed by the resin to obtain the cobalt chloride solution after removing the TOC; after the resin is saturated, the residual cobalt chloride solution in the resin adsorption column is first compressed to the cobalt chloride stock solution tank, and then the 24m 3 The pure water with a conductivity of less than 200 μS / cm washes the resin adsorption column to wash out the residual cobalt chloride on the surface of the resin.

[0054] Blow off: After washing with water, feed steam, control the temperature at 150°C, and blow off the resin adsorption column. The blow off t...

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Abstract

The present invention relates to the technical field of cobalt chloride solution purification, and provides a cobalt chloride solution circulation oil removal method, which comprises: lifting a cobalt chloride solution through a pump, and sequentially passing through a cloth bag filter and a white ball filter; feeding the filtered cobalt chloride solution into a resin adsorption column to obtain a TOC-removed cobalt chloride solution; after resin adsorption is saturated, compressing the residual cobalt chloride solution in the adsorption column to a cobalt chloride stock solution tank, and washing the adsorption column with water; after water washing is finished, steam is introduced to blow off the resin adsorption column, organic matter enriched in the resin is analyzed and separated, and obtained desorption liquid is fed into a desorption liquid collecting tank; after the air stripping is completed, cooling the resin in the adsorption column by using cold water until a preset temperature is reached; and putting the desorbed resin adsorption column into the next adsorption process for recycling. According to the method, the oil removal rate and the oil removal stability can be improved, recycling of the oil removal material is achieved, the technological process is simple, the automation degree is high, dangerous solid waste cannot be generated, and the operation cost is reduced.

Description

technical field [0001] The invention relates to the technical field of cobalt chloride solution purification, in particular to a method for circulating oil removal of cobalt chloride solution. Background technique [0002] In the production process, the cobalt chloride solution inevitably contains a certain amount of organic oil, and the organic oil usually has four forms in the cobalt chloride solution: suspended oil, emulsified oil, and dissolved oil. When the content reaches When a certain amount is used, it will cause unstable synthesis of cobalt tetroxide and organic burning spots on the appearance of electrodeposited cobalt and cobalt sheets. [0003] The traditional ultrasonic, air flotation, activated carbon, and fiber ball oil removal processes have some disadvantages: the removal rate of oil in the solution is unstable, and it is difficult to meet high requirements (such as TOC below 30mg / L), and the process is long. The activated carbon 1. The regeneration of fib...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01D36/00B01D15/08B01D15/42C01G51/08C25C1/08C25C7/06
CPCB01D36/00B01D15/08B01D15/424C01G51/085C25C1/08C25C7/06Y02P10/20
Inventor 许开华许东伟史齐勇王博金倬敏
Owner GEM JIANGSU COBALT IND CO LTD
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