Tributyl phosphate extraction resin for zirconium-hafnium separation and preparation method thereof

A technology of tributyl phosphate and extraction resin, which is applied in the field of tributyl phosphate extraction resin and its preparation, can solve the problems that the liquid-liquid extraction process cannot be carried out, the two phases cannot be effectively separated, and the emulsification problem cannot be solved. , to achieve the effect of eliminating emulsification problems, high product quality and large capacity

Active Publication Date: 2010-02-10
有研资源环境技术研究院(北京)有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

But the fatal shortcoming is that the emulsification problem cannot be solved during the extraction process. As we all know, emulsification is the enemy in the smooth liquid-liquid extraction process.
Due to the emulsification phenomenon, the two phases to be extracted cannot be effectively separated, which eventually leads to the failure

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment -1

[0033] Add 25 kg of measured deionized water into the reaction kettle, add 2.5 kg of glycerol while stirring, and then add 14 kg of polystyrene-divinylbenzene resin (commercially available, with an average particle size of 80-100 order), after stirring evenly, add 7.5 kilograms of measured TBP, the stirring temperature remains at 35° C., stir for 5 hours, and filter to obtain 34% TBP extraction and leaching resin.

Embodiment -2

[0035] Add 20 kilograms of measured deionized water in the reaction kettle, add 7.5 kilograms of measured ethylene glycol while stirring, after stirring, add 14 kilograms of polystyrene-methyl acrylate resin (self-made, average particle diameter 100 kg) ~150 mesh), stir well and add 9 kg of measured TBP, keep the stirring temperature at 25°C, stir for 8 hours, and filter to obtain 39% TBP extraction resin.

Embodiment -3

[0037] Add 20 kg of measured deionized water into the reaction kettle, add 3 kg of measured ethylene glycol and 4 kg of glycerol while stirring, and then add polystyrene-methyl trimethacrylate 16 kg (self-made, average particle size 80~150 mesh), after stirring evenly, add 13 kilograms of measured TBP, the stirring temperature is kept on 45 ℃, stir for 15 hours, filter to obtain 45% TBP extraction resin.

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PUM

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Abstract

The invention relates to tributyl phosphate extraction resin for zirconium-hafnium separation and a preparation method thereof. The preparation method is characterized by comprising the following steps: adding a solvent into a reaction kettle, wherein the solvent is a mixture of water and alcohols and the mixed weight ratio of the water and the alcohols is 100:2-100; after the solvent is stirred evenly, adding resin into the solvent, wherein the weight ratio of the solvent to the resin is 100:5-100; after the mixture is stirred evenly, adding tributyl phosphate into the mixture, wherein the weight ratio of the tributyl phosphate to the resin is 15-400:100; and stirring the mixture for 0.5 to 20 hours at the temperature of between 10 and 100 DEG C, and filtering the mixture to obtain the TBP extraction resin. The TBP-resin prepared by the method serving as the extraction resin for filling an extraction chromatographic column can effectively separate zirconium and hafnium, fully exerts the advantages of a liquid-liquid extraction process such as large TBP extracted zirconium capacity and large zirconium-hafnium separation coefficient, and eliminates the problem of emulsification produced by liquid-liquid extraction so as to successfully implement a zirconium-hafnium TBP extraction separation process.

Description

technical field [0001] The invention relates to a tributyl phosphate leaching resin and a preparation method thereof, in particular to a tributyl phosphate leaching resin for separating zirconium and hafnium and a preparation method thereof. Background technique [0002] In nature, zirconium and hafnium always co-exist together. To obtain atomic-level zirconium and hafnium, only the extraction method can be used to separate zirconium and hafnium. Previously, zirconium and hafnium were extracted and separated by liquid-liquid extraction process of TBP-hydrochloric acid and nitric acid mixed acid system to produce atomic energy grade zirconium oxide and hafnium oxide. The process is characterized by large extraction capacity of the organic phase, high separation coefficient, large capacity of extraction equipment, and qualified atomic energy grade zirconia and hafnium oxide can be obtained at the same time after one separation. But the fatal shortcoming is that the emulsifica...

Claims

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Application Information

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IPC IPC(8): C22B3/26
CPCY02P10/20
Inventor 郎书玲张力王力军陈松
Owner 有研资源环境技术研究院(北京)有限公司
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