Method for preparing aluminum cesium sulfate and aluminum rubidium sulfate by using tantalum-niobium tailings lepidolite

A technology of aluminum cesium sulfate and aluminum rubidium sulfate, applied in the field of aluminum rubidium sulfate, to achieve the effects of low production cost, small impact on the environment, and high equipment utilization

Inactive Publication Date: 2011-09-07
宜春银锂新能源有限责任公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0015] Is there a more accurate timing instrument? People began to break t

Method used

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Embodiment 1

[0040] The concentrations involved in the examples are all mass concentrations. Now, lepidolite is used as a raw material to extract a method for preparing cesium aluminum sulfate and rubidium aluminum sulfate by using lepidolite from tantalum and niobium tailings.

[0041] The lepidolite that present embodiment selects adopts and produces from Yichun tantalum niobium lithium ore, and its each main chemical composition is as follows:

[0042] Li 2 o

K 2 O+Na 2 o

Al 2 o 3

SiO 2

Fe 2 o 3

Rb 2 o

Cs 2 o

F

4.4％

9.1％

23.2％

53.8％

0.2％

1.3％

0.2％

4.0％

[0043] The process steps of the present invention are as follows: filler leaching→evaporative fluoride removal→separation 1→slag removal→variable temperature separation 2.

[0044] Filler leaching: pulverize lepidolite to about 100-200 mesh, and put sulfuric acid solution with a concentration of 30%-70% into the reaction device ac...

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Abstract

The invention provides a method for preparing aluminum cesium sulfate and aluminum rubidium sulfate by using tantalum-niobium tailings lepidolite, which is characterized by comprising the steps of: smashing lepidolite powder into about 100 to 200 meshes; putting the lepidolite powder and a sulfuric acid solution with a concentration of 30 to 70 percent according to a solid-liquid mass ratio of 1:(2-8) into a reaction device; reacting for 3 to 10 hours at 60 to 200 DEG C to remove fluorine and obtain a sulfuric acid solution containing Li<+>, separating and removing a fluorine containing solution; filtering and separating the sulfuric acid solution containing Li<+>, washing filter residue with water fully to remove the filter residue and obtain filtrate which is mother solution 1; and changing the temperature of the mother solution 1 to 10 to 100 DEG C under stirring in order to separate solid aluminum cesium sulfate and solid aluminum rubidium sulfate.

Description

technical field [0001] The invention belongs to the field of chemistry and chemical engineering, and relates to a method for preparing aluminum cesium sulfate and aluminum rubidium sulfate by using tantalum niobium tailings lepidolite. Background technique [0002] The tantalum-niobium-lithium mine in Yichun, Jiangxi Province is currently the largest tantalum-niobium-lithium mine in Asia. It is rich in rare metal materials, such as tantalum, niobium, lithium, rubidium, cesium, potassium, and sodium. Lepidolite is a by-product obtained by flotation of tantalum and niobium mining tailings. Lepidolite is not only Li 2 The content of O is as high as 4.5%, and the content of rubidium and cesium is also as high as about 1.5%. Its comprehensive development and utilization has very important economic and strategic value. [0003] As the world's energy sources that use petroleum as raw materials become increasingly tense, the development and utilization of new energy sources is a co...

Claims

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Application Information

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IPC IPC(8): C01F7/76H01M4/58
CPCY02E60/12Y02E60/10
Inventor 陆云华邹辉飞邹怀波汤洪波刘万云周伟华
Owner 宜春银锂新能源有限责任公司
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