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Method for efficiently leaching lithium from lithium-containing clay rock

A clay rock, high-efficiency technology, applied in the field of lithium-containing clay rock high-efficiency leaching of lithium, can solve the problem of less research on the development and utilization of lithium-containing clay rock, and achieve the effect of reducing leaching costs

Inactive Publication Date: 2020-08-25
贵州锂电新能源科技有限公司 +1
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  • Application Information

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Problems solved by technology

However, there are few studies on the development and utilization of lithium-bearing clay rocks, and there are no reports on the use of direct low-temperature roasting and acidification methods to treat such ores

Method used

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  • Method for efficiently leaching lithium from lithium-containing clay rock

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specific Embodiment approach 2

[0039] The original ore is a lithium-bearing chlorite-type altered residual carbonate rock in Guizhou, the main components of which are CaO and SiO 2 and Al 2 o 3 , the available valuable component is Li 2 O, with a content of 0.46%, the ore is an altered residual structure with a massive structure. The main components are calcite, quartz and clay minerals, and lithium mainly exists in lithium chlorite. The chemical analysis of the main elements of the ore is shown in Table 2.

[0040] element / % Li 2 o

SiO 2

K 2 o

Na 2 o

MnO 2

TiO 2

content 0.46 40.96 1.29 0.11 0.02 0.62 element al 2 o 3

Fe 2 o 3

CaO MgO TS P 2 o 5

content / % 17.98 5.11 13.08 1.13 3.30 0.07

[0041] Process flow chart see figure 1 As shown, the steps are as follows:

[0042] (1) Crushing the raw ore to -2mm;

[0043] (2) Add the crushed raw ore to a rod mill for grinding, and the grinding fineness i...

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Abstract

The invention discloses a method for efficiently leaching lithium from lithium-containing clay rock. The method comprises the following steps of: crushing raw ore, adding the crushed raw ore into a rod mill for grinding, filtering, drying, scattering, uniformly mixing a sample and concentrated sulfuric acid according to a ratio, putting the mixture into a muffle furnace for heat preservation, taking out the sample, naturally cooling, scattering, stirring and leaching according to a ratio of the sample to water, and filtering after stirring to obtain a leaching solution. The leaching method disclosed by the invention is low in energy consumption, simple in process, low in production cost and convenient for subsequent industrial production.

Description

technical field [0001] The invention relates to a method for efficiently leaching lithium from lithium-containing clay rock, which belongs to the field of mineral processing. Background technique [0002] Lithium and its compounds are important raw materials for national defense cutting-edge industries. In the atomic energy industry, lithium is a raw material for the manufacture of hydrogen bombs and controlled thermonuclear reactors, as well as a high-energy fuel for aircraft, rockets, submarines and the aerospace industry. Lithium can be used as a carbon dioxide adsorbent in high-altitude aircraft, manned spacecraft, and sealed compartments of submarines. Aluminum-lithium and magnesium-lithium alloys can be used as structural materials for aerospace aircraft. In addition, lithium series products are also widely used in industries such as metallurgy, ceramics and high-energy batteries. [0003] At present, there are more than 150 kinds of lithium-containing minerals know...

Claims

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Application Information

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IPC IPC(8): C22B26/12C22B3/08
CPCC22B3/08C22B26/12Y02P10/20
Inventor 黄苑龄杨光龙邓强张海胡万明张周位杨国彬张文兴
Owner 贵州锂电新能源科技有限公司
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