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Method for achieving cesium adsorption separation through extraction resin

A technology of resin extraction and adsorption separation, applied in the field of cesium liquid purification, can solve the problems of unsuitability for industrial scale-up production, complex preparation methods of adsorbents, etc.

Inactive Publication Date: 2017-05-31
JIANGXI HZONE LITHIUM TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0008] The technical problem to be solved by the present invention is to overcome the shortcomings of the existing cesium liquid purification method that the adsorbent preparation method is complicated and not suitable for industrial scale-up production, and then provide a kind of simple purification process, suitable for industrial production, and the extraction rate and desorption rate are relatively high. Method for separating cesium by adsorption and separation of high extraction and leaching resin

Method used

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  • Method for achieving cesium adsorption separation through extraction resin
  • Method for achieving cesium adsorption separation through extraction resin
  • Method for achieving cesium adsorption separation through extraction resin

Examples

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Effect test

Embodiment 1

[0026] The method for extracting and leaching resin adsorption and separation of cesium provided in this embodiment comprises the following steps:

[0027] (1) Preparation of t-BAMBP extraction resin

[0028] Put 20g of polystyrene-divinylbenzene macroporous resin and 20mL of t-BAMBP in a container after washing with absolute ethanol, then add 20mL of petroleum ether, stir at room temperature for 10h, filter, and dry in an oven at 60°C Dry, make the t-BAMBP extraction leaching resin that is processed with sherwood oil;

[0029] (2) Adsorption process of cesium liquid

[0030] Take 40 mL of cesium solution with a concentration of 89 mg / L and add 20 g of t-BAMBP extraction resin treated with petroleum ether, adjust the alkalinity of the above cesium solution to 1.0 mol / L with sodium hydroxide, vibrate and stir for 6 hours, filter to obtain cesium adsorbed t-BAMBP extraction resin;

[0031] (3) Desorption process of cesium

[0032] Add 40mL concentration to the t-BAMBP extrac...

Embodiment 2

[0037] The method for extracting and leaching resin adsorption and separation of cesium provided in this embodiment comprises the following steps:

[0038] (1) Preparation of t-BAMBP extraction resin

[0039] Put 20g of polystyrene-divinylbenzene macroporous resin and 20mL t-BAMBP in a container after washing with absolute ethanol, then add 40mL of dichloroethane, stir at room temperature for 12h, filter, and place in an oven at 80°C Drying under the oven makes the t-BAMBP extracting resin treated with ethylene dichloride;

[0040] (2) Adsorption process of cesium liquid

[0041] Take 40 mL of cesium solution with a concentration of 151 mg / L and add 20 g of t-BAMBP extraction resin treated with dichloroethane, adjust the alkalinity of the above cesium solution to 1.2 mol / L with sodium hydroxide, oscillate and stir for 4 hours, filter to obtain t-BAMBP extraction resin for adsorbing cesium;

[0042] (3) Desorption process of cesium

[0043] Add 40mL concentration to the t-B...

Embodiment 3

[0048] The method for extracting and leaching resin adsorption and separation of cesium provided in this embodiment comprises the following steps:

[0049] (1) Preparation of t-BAMBP extraction resin

[0050] Put 20g of polystyrene-divinylbenzene macroporous resin and 20mL t-BAMBP in a container after washing with absolute ethanol, then add 60mL of ethanol, stir at room temperature for 8h, filter, and dry in an oven at 90°C , make the t-BAMBP extraction leaching resin that handles with xylene;

[0051] (2) Adsorption process of cesium liquid

[0052] Take 40 mL of cesium solution with a concentration of 268 mg / L and add 20 g of t-BAMBP extraction resin treated with ethanol, adjust the alkalinity of the above cesium solution to 0.5 mol / L with sodium hydroxide, vibrate and stir for 8 hours, filter to obtain cesium-adsorbed t-BAMBP extraction resin;

[0053] (3) Desorption process of cesium

[0054] Add 40mL concentration of 1.0mol / L HCl desorbent to the t-BAMBP extraction re...

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Abstract

The invention belongs to the technical field of cesium solution purification, and particularly provides a method for achieving cesium adsorption separation through extraction resin. The method comprises the steps of t-BAMBP extraction resin preparation, a cesium solution adsorption process and a cesium desorption process. Firstly, macroporous resin, t-BAMBP and a diluent are mixed uniformly, stirring, filtering and drying are carried out, and t-BAMBP extraction resin is prepared; a cesium solution and the t-BAMBP extraction resin are put into a container, the alkalinity of the above cesium solution is adjusted to range from 0.5 mol / L to 1.2 mol / L, stirring and filtering are carried out, and cesium adsorbed t-BAMBP extraction resin is obtained; and a desorption agent is added into the cesium adsorbed t-BAMBP extraction resin, stirring and filtering are carried out, and a purified cesium solution is obtained. The method is simple; and when petroleum ether is selected as the diluent, and hydrochloric acid is selected as the desorption agent, the optimal extraction rate of the method on the cesium solution can reach 95.2%, the desorption rate can reach 95%, and effective separation of the cesium solution and other heteroions is achieved.

Description

technical field [0001] The invention belongs to the technical field of cesium liquid purification, and in particular relates to a method for extracting and leaching resin to adsorb and separate cesium. [0002] technical background [0003] Cesium is abundant in the earth's crust, ranking 40th in terms of element abundance, and mainly occurs in solid ores such as lepidolite and cesium garnet, as well as in salt lake brine. Cesium has strong chemical activity and excellent photoelectric properties, and has been greatly developed in traditional application fields such as electronic devices, catalysts, and special glasses. In recent years, with the in-depth understanding of cesium, it has also shown strong vitality in emerging application fields such as magnetic fluid power generation, thermal ion conversion power generation, and ion propulsion engines. [0004] At present, the treatment methods of cesium liquid mainly include precipitation method, solvent extraction method and...

Claims

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Application Information

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IPC IPC(8): C22B26/10C22B3/24
CPCC22B3/24C22B26/10Y02P10/20
Inventor 胡简郭永兴彭桂香王迎春曾小毛刘金练樊磊欧阳红勇祝宏帅
Owner JIANGXI HZONE LITHIUM TECH
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