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Method for recovering beryllium by floating beryllium uranium ore leaching residues

A technology for leaching slag and uranium ore, which is applied in the direction of improving process efficiency, and can solve problems such as no report on beryllium slag treatment and recovery.

Inactive Publication Date: 2011-01-26
CENT SOUTH UNIV +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The traditional beryllium ore resources are mainly beryl and silicon beryllite, and the recycling of beryllium slag will also become one of the important sources of beryllium resources. At present, there are no reports on the treatment and recovery of beryllium slag at home and abroad.

Method used

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  • Method for recovering beryllium by floating beryllium uranium ore leaching residues

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0021] Using the method of the invention, an experiment was carried out on a beryllium-uranium leaching slag in Xinjiang. The mass concentration of the pulp is controlled at 40%. Strong stirring is carried out before flotation and the temperature of the pulp is controlled at 30°C. The stirring intensity is 2000 rpm and the stirring time is 60 minutes. Beryllium mineral enrichment recovery, so as to achieve effective separation of beryllium ore and gangue minerals. In this example, the regulator is Na 2 CO 3 or NaHCO 3 , the dosage is 1000g / t. Add collectors such as oleic acid or hydroxamic acid or combinations of several fatty acids and other fatty acid collectors, and the dosage is 1000g / t. Ideal beneficiation results can be obtained, and the specific flotation indicators are as follows:

[0022] Table 1 Flotation results of a beryllium-uranium leaching residue in Xinjiang

[0023] product

Embodiment 2

[0025] Using the method of the present invention, a condition test was carried out on a certain beryllium-uranium leaching residue in Sichuan. The test procedure also uses figure 1 . The mass concentration of the ore pulp is controlled at 50%, strong stirring is carried out before flotation and the temperature of the ore pulp is controlled at 45°C, the stirring speed is 2000 rpm, the stirring time is 80 minutes, and the oxidized ore collector of fatty acid is used, which can The enrichment and recovery of beryllium-containing minerals can achieve the effective separation of beryllium ore and gangue minerals. In this example, the regulator is Na 2 CO 3 or NaHCO 3 , the dosage is 1500g / t. Add collectors such as oleic acid, hydroxamic acid or combinations of several fatty acids and other fatty acid collectors, and the dosage is 800g / t. Ideal beneficiation results can be obtained, and the specific flotation indicators are as follows:

[0026] Table 2 Flotation results of le...

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Abstract

The invention discloses a method for recovering beryllium by floating beryllium uranium ore leaching residues, which comprises the following steps of: ball-milling the beryllium uranium leaching residues and then performing size mixing to obtain ore pulp with the concentration of 40 to 50 percent; adding a modifier and performing uniform stirring; adding a fatty acid collecting agent; and finally heating the ore pulp to 30 to 45 DEG C, and performing uniform forced-stirring and floatation to obtain froth products which are beryllium concentrates. Due to the adoption of a high-density pulp high-temperature forced-stirring floatation method for performing floatation treatment on the residues, the method has the advantages of good effects, realization of recovery of the beryllium from the beryllium uranium residues, the beryllium recovery rate of 76 percent, simple process flow, no pollutions and the like.

Description

technical field [0001] The invention belongs to the technical field of agent leaching slag flotation, relates to a method for recovering beryllium by flotation of beryllium-uranium ore leaching slag, relates to efficient separation of beryllium-containing minerals and gangue and flotation enrichment of beryllium, and belongs to the field of comprehensive recycling of rare metals. Background technique [0002] Beryllium is an important material in industry. Most of the industrial beryllium is used in the production of beryllium copper alloy in the form of beryllium oxide, a small part is used in the form of metal beryllium, and a small amount is used in the form of beryllium oxide ceramics. Especially in fields such as atomic energy, aerospace and aviation, and metallurgy, it has important uses. In the field of atomic energy, such as using beryllium to multiply seeds to make reflectors, moderators and nuclear weapons of experimental reactors, etc.; in the aerospace and aviat...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C22B7/00C22B35/00
CPCY02P10/20
Inventor 孙伟黄红军胡岳华耿志强
Owner CENT SOUTH UNIV