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Method for preparing beryllium oxide or high-purity beryllium oxide from beryllium containing solution

A technology of beryllium oxide and beryllium solution, which is applied in the direction of beryllium oxide/hydroxide, etc., can solve the problems of product purity, high grade requirements, low recovery rate, etc., and achieve low grade requirements, simple and flexible operation, waste residue volume and The effect of reducing the amount of exhaust gas

Active Publication Date: 2014-05-28
XINJIANG RES INST OF NON FERROUS METALS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The present invention provides a method for producing beryllium oxide or high-purity beryllium oxide from a beryllium-containing solution, which overcomes the above-mentioned deficiencies in the prior art, and can effectively Solve the problems that the current production of beryllium oxide requires high grade of beryllium-containing ore, low recovery rate, and the purification process used to easily affect the purity of the product

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0017] In Example 1, the method for preparing beryllium oxide from a solution containing beryllium was carried out according to the following steps: In the first step, the phosphoric acid extractant, alcohol, and sulfonated kerosene were compared by volume. Phosphoric acid extractant: alcohol: sulfonated kerosene 10:10:75 to 25:15:90 Weigh and mix together and configure it as an extractant. The beryllium-containing solution with a pH of 2 to 4 and the extractant are multi-staged in a volume ratio of 1:3 to 1:6 Countercurrent extraction, extraction to obtain the extraction organic phase and the raffinate aqueous phase, extraction until the concentration of beryllium ions in the extraction organic phase is 5g / L to 10g / L; the second step is to prepare an aqueous oxalic acid solution with a mass concentration of 5% to 25%. The oxalic acid aqueous solution and the extracted organic phase are subjected to multi-stage countercurrent washing in a volume ratio of 1:3 to 1:6, and the ext...

Embodiment 2

[0018] In Example 2, the method for preparing beryllium oxide from a solution containing beryllium was carried out according to the following steps: In the first step, the phosphoric acid extractant, alcohol, and sulfonated kerosene were compared by volume. Phosphoric acid extractant: alcohol: sulfonated kerosene 10:10:75 or 25:15:90 Weigh and mix together and configure it as an extractant. The beryllium-containing solution with a pH of 2 or 4 and the extractant are multi-staged at a volume ratio of 1:3 or 1:6 Countercurrent extraction, extraction to obtain the extraction organic phase and the raffinate aqueous phase, extraction until the concentration of beryllium ions in the extraction organic phase is 5g / L or 10g / L; the second step is to prepare an aqueous oxalic acid solution with a mass concentration of 5% or 25%. The oxalic acid aqueous solution and the extracted organic phase are subjected to multi-stage countercurrent washing at a volume ratio of 1:3 or 1:6, and the ext...

Embodiment 3

[0019] Example 3, as an optimization of Example 1 and Example 2, in Example 3, the phosphoric acid extractant is a phosphoric acid series extractant with different substituents.

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Abstract

The invention relates to the technical field of beryllium oxide preparation, and refers to a method for preparing beryllium oxide or high-purity beryllium oxide from a beryllium containing solution. The method comprises the following steps of: 1, weighing and mixing a phosphoric acid extractant, alcohol and sulfonated kerosene in a volume ratio of 10: 10: 75 to 25: 15: 90, then preparing to be an extractant. The method disclosed by the invention is simple and flexible to operate, convenient to realize continuity. The method has low requirements in beryllium containing ore grade and can treat the beryllium containing waste liquid of any concentration. In comparison with the prior art, the recovery rate of beryllium oxide, the back extraction ratio and the one-time precipitation rate of hydrolysis BeO are higher and the quality of beryllium oxide or high-purity beryllium oxide can be effectively guaranteed, so that high-quality beryllium oxide or high-purity beryllium oxide can be obtained. In the process of production, acid waste liquids are mainly produced, and the acid waste liquids can be discharged after a neutralizing treatment is carried out, the waste residue and exhausted air emissions are less, therefore the method is an environment-friendly technology.

Description

technical field [0001] The invention relates to the technical field of preparing beryllium oxide, and relates to a method for preparing beryllium oxide or high-purity beryllium oxide from a solution containing beryllium. Background technique [0002] Various parts made of high-purity beryllium oxide have excellent thermal conductivity, high frequency, thermal shock resistance, high temperature resistance and nuclear performance, etc., and are widely used in electronics, refractory materials and atomic energy and other industrial sectors. High-purity beryllium oxide It is mainly used in the production of beryllium oxide ceramics, and has been valued and applied in the fields of microwave technology, vacuum electronics technology, nuclear technology, microelectronics and optoelectronics technology, especially in high-power semiconductor devices, high-power ICs, high-power microwave vacuum devices and nuclear reactors. It has always been the mainstream ceramic material for the ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C01F3/02
Inventor 翁鸿蒙唐向阳刘力夏国定王晨雪
Owner XINJIANG RES INST OF NON FERROUS METALS
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