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Preparation method of ion exchange resin

A technology of ion exchange resin and divinylbenzene, which is applied in the field of uranium mining and smelting, can solve the problems of difficult leaching and high price, and achieve the effects of reducing reagent consumption and improving leaching performance.

Inactive Publication Date: 2013-01-30
BEIJING RESEARCH INSTITUTE OF CHEMICAL ENGINEERING AND METALLURGY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Chelating resin has strong anti-interference ability, but its disadvantage is that it is difficult to wash, and it is expensive, so it can only be used under specific conditions

Method used

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  • Preparation method of ion exchange resin
  • Preparation method of ion exchange resin

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Experimental program
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Embodiment 1

[0026] Such as figure 1 Shown, the preparation method of a kind of ion exchange resin of the present invention comprises the steps:

[0027] (1) Suspension polymerization reaction

[0028] Prepare dispersant solution: add gelatin to 1L of water, stir to obtain gelatin solution, wherein the amount of gelatin added is 8g / L; then add 16ml of methylene blue aqueous solution with a mass percentage concentration of 0.1% to each liter of gelatin solution.

[0029] Prepare the organic phase: mix divinylbenzene (DVB) and styrene (ST) evenly, wherein the mass percentage of divinylbenzene is 25%, and the mass percentage of styrene is 75%; then add divinylbenzene and styrene to the mixture Add dibenzoyl peroxide (BPO) and porogen to the mixture, the added quality of dibenzoyl peroxide is 0.8% of the total mass of divinylbenzene and styrene mixture, the added quality of porogen is divinylbenzene and 60% of the total mass of styrene mixture;

[0030] The porogen includes component A and ...

Embodiment 2

[0042] Such as figure 1 Shown, the preparation method of a kind of ion exchange resin of the present invention comprises the steps:

[0043] (1) Suspension polymerization reaction

[0044] Prepare dispersant solution: add gelatin to 1L of water, stir to obtain gelatin solution, wherein the amount of gelatin added is 5g / L; then add 10ml of 0.1% methylene blue aqueous solution to each liter of gelatin solution.

[0045] Prepare the organic phase: mix divinylbenzene (DVB) and styrene (ST) evenly, wherein the mass percentage of divinylbenzene is 15%, and the mass percentage of styrene is 85%; then add divinylbenzene and styrene to the mixture Dibenzoyl peroxide (BPO) and porogen are added to the mixture, the added mass of dibenzoyl peroxide is 0.5% of the total mass of divinylbenzene and styrene mixture, and the added mass of porogen is divinylbenzene and 40% of the total mass of styrene mixture;

[0046] The porogen includes component A and component B, component A is liquid p...

Embodiment 3

[0056] Such as figure 1 Shown, the preparation method of a kind of ion exchange resin of the present invention comprises the steps:

[0057] (1) Suspension polymerization reaction

[0058] Prepare dispersant solution: add gelatin to 1L of water, stir to obtain gelatin solution, wherein the amount of gelatin added is 10g / L; then add 20ml of 0.1% methylene blue aqueous solution to each liter of gelatin solution.

[0059] Prepare the organic phase: mix divinylbenzene (DVB) and styrene (ST) evenly, wherein the mass percentage of divinylbenzene is 20%, and the mass percentage of styrene is 80%; then add divinylbenzene and styrene to the mixture Dibenzoyl peroxide (BPO) and porogen are added to the mixture, the added mass of dibenzoyl peroxide is 1% of the total mass of divinylbenzene and styrene mixture, and the added mass of porogen is divinylbenzene and 70% of the total mass of styrene mixture;

[0060] The porogen includes component A and component B, component A is liquid pa...

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Abstract

The invention provides a preparation method of an ion exchange resin, which comprises the following steps: (1) mixing a dispersant solution and an organic phase, and gradually heating to carry out polymerization reaction; (2) adding chloromethyl ether into the obtained white ball, and adding a catalyst zinc chloride to carry out chloromethylation reaction; and (3) adding methanol into the obtained chlorine ball, dropwisely adding a trimethylamine water solution, adding a 10% sodium chloride solution, adding hydrochloric acid for neutralization, and washing with water to obtain the resin. The ion exchange resin provided by the invention has the advantages of favorable selectivity, high uranium adsorption capacity and high exchange speed.

Description

technical field [0001] The invention relates to the technical field of uranium mining and smelting, in particular to a preparation method of an ion exchange resin. Background technique [0002] With the development of uranium mining technology, the in-situ leaching process is the main development direction because it does not need to mine ore for leaching, the production process is simple, the investment is small, the plant is built quickly, and the production cost is low. Due to the low content of uranium in the in-situ leaching solution, it is not easy to enrich by extraction, and only ion exchange resin can be used for adsorption. Chelating resins and anion exchange resins are available. Chelating resin has strong anti-interference ability, but its disadvantage is that it is difficult to wash, and it is expensive in itself, so it can only be used under specific conditions. When the uranium ore leaching solution adopts the ion exchange process to extract uranium, higher ...

Claims

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Application Information

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IPC IPC(8): C08F212/08C08F212/36C08F8/24C08F8/32C08J9/28B01J41/14
Inventor 刘乃忠何望林杜志明苏学斌郭忠德李建华牛玉清吴旭红常喜信程宗芳沈红伟杨少武
Owner BEIJING RESEARCH INSTITUTE OF CHEMICAL ENGINEERING AND METALLURGY
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