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Production method for preferably selecting lepidolite from tantalum and niobium ores

A production method and technology of lepidolite, which are applied in flotation, solid separation and other directions, can solve the problems of low recovery rate of lepidolite, affecting the beneficiation benefit, etc., and achieve significant economic and social benefits, easy operation, and unique process effects.

Inactive Publication Date: 2014-12-17
HUBEI XINYING ENVIRONMENTAL TECH
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Problems solved by technology

[0004] The purpose of the present invention is to solve the problem that the traditional tantalum-niobium ore beneficiation process has a low recovery rate of lepidolite, which seriously affects the beneficiation benefit, and provides a production method for optimizing lepidolite from tantalum-niobium ore

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  • Production method for preferably selecting lepidolite from tantalum and niobium ores
  • Production method for preferably selecting lepidolite from tantalum and niobium ores

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Embodiment Construction

[0017] Apply the present invention to the production method of preferred lepidolite from tantalum-niobium ore in Jinhui mining industry, comprise following processing steps (see figure 2 ): ⑴Crush the tantalum-niobium ore; ⑵Add the crushed ore to the water ball mill, crushed ore: water=65:35, and make the pulp with a fineness of -200 mesh accounting for 50%; ⑶Desliming, using a hydrocyclone, Remove the slime in the pulp; ⑷Flotation; ⑸The flotation concentrate is sent to a high-frequency vibrating screen for screening, and the product on the sieve is lepidolite concentrate, and the product under the sieve is lepidolite secondary concentrate; ⑹Flotation Tailings are re-selected to obtain tantalum-niobium concentrate; (7) Gravity-selected tailings are subjected to magnetic separation to obtain feldspar concentrate.

[0018] The crushing in the above step (1) is to choose a jaw crusher or a roller crusher.

[0019] The above step (4) flotation includes a roughing, a sweeping, a...

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Abstract

The invention relates to the technical field of mineral processing, in particular to a production method for preferably selecting lepidolite from tantalum and niobium ores. The technological process comprises crushing, ore grinding, desliming and floation, the flotation concentrate is filtered by a high-frequency vibrating screen to obtain lepidolite concentrate and secondary lepidolite concentrate, the flotation tailings are re-elected to obtain tantalum and niobium concentrate, and the re-elected tailings are magnetically separated to obtain feldspar concentrate. The comprehensive recovery rate of lepidolite in the tantalum and niobium ores is greater than 70%, so that the economic efficiency of tantalum and niobium ores is greatly improved. The production method provided by the invention is particularly suitable for preferably selecting the lepidolite from the low-grade tantalum and niobium ores.

Description

technical field [0001] The invention relates to the technical field of ore dressing, in particular to a production method for optimizing lepidolite from tantalum-niobium ore. Background technique [0002] At present, the gangue minerals in my country's tantalum-niobium ore deposits are mostly silicate minerals such as feldspar, quartz, and mica. For the traditional tantalum-niobium ore beneficiation process, see figure 1 . For beneficiation of tantalum-niobium ore, gravity separation is generally used first to discard most gangue minerals to obtain tantalum-niobium rough concentrate, and then gravity separation process can usually obtain better pre-enrichment effect. After re-election of tantalum and niobium, the ore is classified and deslimed and enters the flotation operation. As far as flotation is concerned, lepidolite is the main target mineral, and the main gangue minerals are quartz and feldspar. Generally, tantalum-niobium ore is re-selected first, followed by flo...

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Application Information

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IPC IPC(8): B03B1/00B03D1/00B03D1/08
Inventor 洪镇波胡剑宇莫江洲邓成曾欢
Owner HUBEI XINYING ENVIRONMENTAL TECH
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