Preparation of cobalt adsorbent

A technology of cobalt adsorption and porogen, applied in the field of preparation of cobalt adsorbent, can solve the problems of complex composition, easy introduction of new impurities, long process route, etc. Effect

Inactive Publication Date: 2016-08-17
王金明
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The methods for purifying cobalt reported in the current literature have complex components, long process routes, and easy introduction of new impurities.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0021] Step 1. Preparation of water phase

[0022] In parts by weight, add 100 parts of pure water and 0.5 part of polyvinyl alcohol into the reactor, and stir evenly.

[0023] Step 2. Preparation of oil phase

[0024] Mix and stir the oil phase components in the following proportions evenly;

[0025] Component Parts by weight

[0026] Styrene 100

[0027] Bis(pentamethylcyclopentadienyl) cobalt hexafluorophosphate 65

[0028] Cyclohexanediamine bis(di-tert-butylsalicylene) cobalt 33

[0029] 1-vinyl-3-butylimidazole bistrifluoromethanesulfonimide salt 0.3

[0030] Toluene 30

[0031] Benzoyl Peroxide 2

[0032] Step 3. Polymerization

[0033] Add the prepared oil phase solution in step 2 to the reaction kettle equipped with the prepared water phase in step 1, react at 90°C for 14 hours, discharge the material after the reaction is completed, and extract the toluene after drying to obtain the product. The number is W-1.

Embodiment 2

[0035] Step 1. Preparation of water phase

[0036] In parts by weight, add 100 parts of pure water and 1.5 parts of polyvinyl alcohol into the reactor, and stir evenly.

[0037] Step 2. Preparation of oil phase

[0038] Mix and stir the oil phase components in the following proportions evenly;

[0039] Component Parts by weight

[0040] Styrene 100

[0041] Bis(pentamethylcyclopentadienyl) cobalt hexafluorophosphate 50

[0042] Cyclohexanediamine bis(di-tert-butyl salicylene) cobalt 20

[0043] 1-vinyl-3-butylimidazole bistrifluoromethanesulfonimide salt 0.1

[0044] white oil 40

[0045] Benzoyl peroxide 0.5

[0046] Step 3. Polymerization

[0047] Add the prepared oil phase solution to the reaction kettle equipped with the prepared water phase in step 1, react at 80°C for 24 hours, discharge the material after the reaction is completed, and extract the porogen after drying to obtain the product, No. for W-2.

Embodiment 3

[0049] Step 1. Preparation of water phase

[0050] In parts by weight, add 100 parts of pure water and 2 parts of polyvinyl alcohol into the reactor, and stir evenly.

[0051] Step 2. Preparation of oil phase

[0052] Mix and stir the oil phase components in the following proportions evenly;

[0053] Component Parts by weight

[0054] Styrene 100

[0055] Bis(pentamethylcyclopentadienyl) cobalt hexafluorophosphate 90

[0056] Cyclohexanediamine bis(di-tert-butylsalicylene) cobalt 50

[0057] 1-vinyl-3-butylimidazole bistrifluoromethanesulfonimide salt 0.5

[0058] Mineral spirits 20

[0059] Benzoyl Peroxide 3

[0060] Step 3. Polymerization

[0061] Add the prepared oil phase solution to the reaction kettle equipped with the prepared water phase in step 1, react at 110°C for 10 hours, discharge the material after the reaction is completed, and extract the porogen after drying to obtain the product, No. for W-3.

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PUM

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Abstract

The invention relates to preparation of a cobalt adsorbent. The cobalt adsorbent is prepared by introducing bis(pentamethylcyclopentadienyl)cobalticinium hexafluorophosphate, (S,S)-(+)-N,N'-bis(3,5-di-tert-butylsalicylidene)-1,2-cyclohexanediaminocobalt and 1-vinyl-3-buthylimidazolium bis[(trifluoromethyl)sulfonyl]imide in polymerization to be polymerized.

Description

technical field [0001] The invention relates to the preparation of an adsorbent, in particular to the preparation of a cobalt adsorbent. Background technique [0002] Demand for cobalt-containing compounds as cathode materials for lithium-ion batteries is also rapidly increasing. However, when preparing cobalt-containing compounds, a large amount of cobalt-containing wastewater will be produced. If the cobalt therein cannot be effectively removed, it will not only pollute the environment, but also cause waste of the scarce cobalt. It can be seen that the research on the method of removing cobalt in cobalt-containing wastewater has very significant social and economic benefits [0003] CN103848490A discloses that the present invention provides a method for removing cobalt in cobalt-containing wastewater, comprising the following steps: under the condition that the pH value is 10-12, reacting cobalt-containing wastewater and sodium hypochlorite solution in sunlight to obtain...

Claims

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Application Information

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IPC IPC(8): C08F212/08C08F232/08C08F226/06C08J9/28B01J20/26C02F1/28C02F101/20
CPCY02W10/37C08F212/08B01J20/264C02F1/285C02F2101/20C08J9/28C08J2325/08C08F232/08C08F226/06
Inventor 王琪宇
Owner 王金明
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