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., which can solve the problems of high grade requirements, product purity impact, low recovery rate, etc., and achieve low grade requirements, less waste residue and exhaust gas emissions , Easy and flexible operation

Active Publication Date: 2016-01-13
XINJIANG RES INST OF NON FERROUS METALS
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  • Abstract
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  • 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] Embodiment 1, the method for producing beryllium oxide from beryllium-containing solution is carried out as follows: the first step, the phosphoric acid extractant, alcohol and sulfonated kerosene by volume ratio phosphoric acid extractant: alcohol: sulfonated kerosene is 10:10:75 to 25:15:90 Weigh and mix them together to make an extraction agent. The beryllium-containing solution with a pH of 2 to 4 and the extraction agent are multi-staged at a volume ratio of 1:3 to 1:6. Countercurrent extraction, extracting to obtain the extracted organic phase and the raffinate aqueous phase, the concentration of beryllium ions in the extracted 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 at a volume ratio of 1:3 to 1:6, and the washed extracted organic phase and the washed was...

Embodiment 2

[0018] Embodiment 2, the method for producing beryllium oxide from beryllium-containing solution is carried out as follows: the first step, the phosphoric acid extractant, alcohol and sulfonated kerosene by volume ratio phosphoric acid extractant: alcohol: sulfonated kerosene is 10:10:75 or 25:15:90 weighed and mixed together to prepare the extraction agent, the beryllium-containing solution with a pH of 2 or 4 and the extraction agent were multi-staged at a volume ratio of 1:3 or 1:6 Countercurrent extraction, the extraction obtains the extracted organic phase and the raffinate aqueous phase, and the concentration of beryllium ions in the extracted 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 washed extracted organic phase and the w...

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 present invention relates to the technical field of producing beryllium oxide, which is a method for producing beryllium oxide or high-purity beryllium oxide from a beryllium-containing solution. Phosphoric acid extractant in volume ratio: alcohol: sulfonated kerosene is 10:10:75 to 25:15:90 Weigh and mix together to configure the extractant. The operation of the invention is simple and flexible, and it is convenient to realize continuous operation. The invention has low requirements on the grade of beryllium-containing ore. Able to process any concentration of beryllium-containing waste liquid, the method of the present invention Recycling than existing technology beryllium oxide Recovery rate, Stripping rate and hydrolysis BeO The primary precipitation rate is higher, which can effectively guarantee the quality of beryllium oxide or high-purity beryllium oxide, and then Get High Quality Beryllium Oxide or High Purity Beryllium Oxide , in the production process, the present invention mainly produces acid waste liquid, which can be discharged after neutralization treatment, and the amount of waste residue and waste gas is less, which is a green and environmental protection process.

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 Patents(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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