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Technology of extracting lepidolite from lithium porcelain stone ore

A lithium china stone and lithium extraction technology, applied in solid separation, high gradient magnetic separation, grain processing, etc., can solve the problems of difficult processing, low production capacity, inflexible process route, etc., achieving small investment, large production capacity, suitable for promotion applied effect

Active Publication Date: 2018-05-11
江西九岭锂业股份有限公司
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  • Claims
  • Application Information

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Problems solved by technology

[0002] Jiuling Mountain Lithium Porcelain Mine has a semi-weathered and semi-obsessed crystal structure. The main mineral crystals are quartz, mica and feldspar kaolin. In the traditional extraction process of lepidolite, the dissociation is achieved by measuring the crystal particle size. Therefore, the traditional process dissociation method is easy to make the back-end process difficult to cure, the whole process route is not flexible, the investment is large, the production capacity is low, the product quality is low, and the recovery rate of lepidolite is only 60-65%.

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  • Technology of extracting lepidolite from lithium porcelain stone ore

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Embodiment 1

[0026] A process for extracting lepidolite from lithium china stone ore, the process specifically includes the following steps:

[0027] (1) Lithium china stone ore dissociation: the pegmatite granite type lithium china stone is crushed and granulated to obtain 3cm ore particles, and the ore particles are sent to the precision sand making system, and the ore particles are made in the original control volume of the sand making machine. Free fall movement, the rebar in the sand making machine has four stages of rapid impact on the ore particles: the first and second stages play the role of impacting finely crushed ore particles, with the free fall of the ore particles and the gradual change of the volume space Small, under the action of super-fast friction and impact in the third and fourth stages, the ore crystals disintegrate naturally to obtain 900um fine sand; the fine sand is sieved by a probability sieve after adding water to obtain a mixture of quartz gangue and lepidolite...

Embodiment 2

[0032] A process for extracting lepidolite from lithium china stone ore, the process specifically includes the following steps:

[0033] (1) Dissociation of lithium china stone ore: crush and granulate the pegmatite granite type lithium china stone to obtain 1.6cm ore particles, and send the ore particles to the precision sand making system, and the ore particles are in the original control volume of the sand making machine In the free fall movement, the rebar in the sand making machine will quickly impact the ore particles in four stages: the first stage and the second stage play the role of impacting the finely crushed ore particles, with the free fall of the ore particles and the gradual increase of the volume space Under the action of ultra-fast friction and impact in the third and fourth stages, the ore crystals disintegrate naturally to obtain 800um fine sand; the fine sand is sieved by a probability sieve after adding water to obtain a mixture of quartz gangue and lepido...

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Abstract

The invention belongs to the technical field of lepidolite extraction and particularly discloses a technology of extracting lepidolite from lithium porcelain stone ore. The technology comprises the steps that (1) naturally dissociation of the lithium porcelain stone ore is carried out, concretely, screw-thread steel in a sand making machine carries out four stages of rapid impact on ore grains sothat ore crystals are naturally disassembled, and after screening, a mixture of gangue quartz and lepidolite crystals, feldspar and lepidolite are obtained; (2) efficient gravity difference floatationis carried out, concretely, the mixture of the gangue quartz and the lepidolite crystals is subjected to ball milling, magnetic separation, swirling, liquid separation and floatation and thus a lepidolite concentrate and fine silica powder are obtained; and (3) the feldspar and the lepidolite are subjected to continuous high-gradient strong magnet purification, and thus the lepidolite concentrateand albite are obtained. With the adoption of the technology, after the lithium porcelain stone ore is subjected to lithium extraction, the low-grade feldspar is turned into the fine silica powder and fine albite powder after the lithium porcelain stone ore is subjected to lithium extraction, and the industrial recovery rate of the lepidolite is increased from 60% to 90%. In addition, neither tailings or tailing mud are / is generated in the entire technological process, the productive capacity is high, the investment is low, and the technology is suitable for popularization and application.

Description

technical field [0001] The invention belongs to the technical field of lepidolite extraction, and in particular relates to a process for extracting lepidolite ore. Background technique [0002] Jiuling Mountain Lithium Porcelain Mine has a semi-weathered and semi-obsessed crystal structure. The main mineral crystals are quartz, mica and feldspar kaolin. In the traditional extraction process of lepidolite, the dissociation is achieved by measuring the crystal particle size. Therefore, the traditional process dissociation method is easy to make the back-end process difficult to cure, the whole process route is not flexible, the investment is large, the production capacity is low, the product quality is low, and the lepidolite recovery rate is only 60-65%. Therefore, in order to solve the defects of the traditional lepidolite extraction process, it is necessary to develop a new lepidolite ore extraction process. Contents of the invention [0003] The technical problem to be ...

Claims

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Application Information

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IPC IPC(8): B02C21/00B02C1/00B03C1/025B03D1/00
CPCB02C1/00B02C21/00B03C1/002B03D1/00
Inventor 魏冬冬魏绪春廖新
Owner 江西九岭锂业股份有限公司
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