Unlock instant, AI-driven research and patent intelligence for your innovation.

Alkaline treatment process for lithium ore

A technology for processing technology and lithium ore, applied in the direction of improving process efficiency, etc., can solve problems such as inability to fully extract and utilize resources, and achieve good economic benefits

Inactive Publication Date: 2017-09-12
廖新军
View PDF7 Cites 12 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

None of the above methods can realize the full extraction and utilization of resources in lithium ore

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Alkaline treatment process for lithium ore

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0036] Embodiment 1 provides a kind of alkaline treatment process of lithium ore, and it specifically comprises the following steps:

[0037] Mix 100kg lepidolite ore with 20kg caustic soda evenly, melt and roast at 700°C for 30 minutes; then water-quench and grind the ore for leaching, specifically, mix the roasted powder with deionized water at a mass ratio of 1:2, and heat to 100 ℃, leaching under the conditions of stirring and heating, and filtering to obtain the first filtrate and filter residue, and the filter residue is the obtained product I.

[0038] Add lithium precipitant to the first filtrate, lithium precipitant is phosphoric acid solution, filter to obtain second filtrate and lithium-rich material, lithium-rich material is the obtained product II.

[0039] In the second filtrate, a silicon precipitating agent is added, and the silicon precipitating agent is calcium oxide, and the third filtrate and silicon slag are obtained by filtration, and the silicon slag is ...

Embodiment 2

[0042] Embodiment 2 provides a kind of alkaline treatment process of lithium ore, and it specifically comprises the following steps:

[0043] Mix 80kg of spodumene ore and 20kg of soda ash evenly, roast at 1500°C for 30min; ℃, leaching under the conditions of stirring and heating, and filtering to obtain the first filtrate and filter residue, and the filter residue is the obtained product I.

[0044] A lithium precipitant is added to the first filtrate, and the lithium precipitant is sodium phosphate solution, and the second filtrate and lithium-rich material are obtained by filtration, and the lithium-rich material is the obtained product II.

[0045] In the second filtrate, a silicon precipitating agent is added, and the silicon precipitating agent is calcium oxide, and the third filtrate and silicon slag are obtained by filtration, and the silicon slag is the obtained product III.

[0046] In the third filtrate, add rubidium cesium precipitant, rubidium cesium precipitant ...

Embodiment 3

[0048] Embodiment 3 provides a kind of alkaline treatment process of lithium ore, and it specifically comprises the following steps:

[0049] Mix 60kg of spodumene ore with 20kg of the sodium lye in Example 2 evenly, and roast at 1400°C for 25 minutes; then water-quench and grind the ore for leaching, specifically, the mass ratio of the roasted powder and deionized water is 1: 2 mixed and heated to 100°C, leached under stirring and heating conditions, and filtered to obtain the first filtrate and filter residue, the filter residue is the obtained product I.

[0050] Add lithium precipitant to the first filtrate, filter to obtain the second filtrate and lithium-rich material, the lithium-rich material is the obtained product II.

[0051] In the second filtrate, a silicon precipitating agent is added, and the silicon precipitating agent is calcium oxide, and the third filtrate and silicon slag are obtained by filtration, and the silicon slag is the obtained product III.

[0052...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention provides an alkaline treatment process for lithium ore and relates to the technical field of ore dressing. The alkaline treatment process comprises the following steps: mixing the lithium ore with an alkali for roasting, carrying out water quenching, ore grinding and leaching, and carrying out filtration to obtain a first filtrate and a filter residue; adding a lithium precipitant into the first filtrate, and carrying out filtration to obtain a second filtrate and a lithium-rich material; adding a silicon precipitant into the second filtrate, and carrying out filtration to obtain a third filtrate and a silicon residue; and adding a rubidium-cesium precipitant into the third filtrate, and carrying out filtration to obtain a sodium alkali solution and potassium-rubidium-cesium perchlorate. By adoption of the alkaline treatment process, useful resources in the lithium ore can be sufficiently extracted and utilized, and the economic benefit is great.

Description

technical field [0001] The invention relates to the technical field of mineral processing, and in particular to an alkaline treatment process for lithium ore. Background technique [0002] At present, more than 150 kinds of lithium minerals and lithium-containing ores have been found in nature. my country is rich in lithium resource reserves, and the total proven lithium resource reserves rank second in the world. Lithium ore is mainly used to extract useful substances therein, and the mineral raw material for producing lithium products is mainly spodumene (containing 5.8% to 8.1% Li 2 O), lepidolite (containing 3.2% ~ 6.45% Li 2 O), lithium lithium (containing 7.1% ~ 10.1% Li 2 O), lithium petalite (containing 2.9% ~ 4.8% Li 2 O) and iron lepidolite (containing 1.1% to 5% Li 2 O). It is worth pointing out that the most widely used lithium product is lithium carbonate, which is the basic material for the production of secondary lithium salt and lithium metal, and thus i...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Applications(China)
IPC IPC(8): C22B26/12C22B1/02C22B3/04C22B3/44C22B26/10
CPCC22B1/02C22B3/04C22B3/44C22B26/10C22B26/12Y02P10/20
Inventor 廖新军
Owner 廖新军