A kind of industrial-grade metal lithium refining equipment and refining method thereof

A technology for refining equipment and lithium metal, which is applied in industrial-grade lithium metal refining equipment and refining fields, can solve problems such as large safety hazards, high oil content in products, and poor separation effect, and achieves simple operation, simple equipment structure, and production and operation. Safe and reliable effect

Active Publication Date: 2017-04-26
南通盛能新材料科技有限公司
View PDF7 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

There are two main problems in this refining equipment process: one is that the separation effect is not good, and there are often more salts and oxide impurities mixed in the product, and at the same time, the product contains high oil
Second, due to the high content of sodium in metallic lithium, there is a greater potential safety hazard during smelting

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
  • A kind of industrial-grade metal lithium refining equipment and refining method thereof

Examples

Experimental program
Comparison scheme
Effect test

example 1

[0048] 1) Open the lid 5 of the lithium melting tank while the lithium melting tank 1 is filled with argon gas and keep the argon gas flowing continuously. Weigh 50Kg of industrial grade crude lithium and add it to the lithium melting tank 1, close the lid 5 of the lithium melting tank, and at the same time close the argon pipe b valve of the lithium melting tank to stop the flow of argon.

[0049] 2) Operate according to other steps of the refining method to obtain qualified high-sodium grade (98%) lithium metal products.

example 2

[0051] 1) Open the lid 5 of the lithium melting tank while the lithium melting tank 1 is filled with argon gas and keep the argon gas flowing continuously. Weigh 50Kg of industrial grade crude lithium and add it to the lithium melting tank 1, close the lid 5 of the lithium melting tank, and at the same time close the argon pipe b valve of the lithium melting tank to stop the flow of argon.

[0052] 2) Operate according to other steps of the refining method to obtain qualified industrial grade (99%) metal lithium products.

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 relates to industrial-grade metal lithium refining equipment and a refining method, in particular to special industrial-grade metal lithium refining equipment and a refining method for chemical engineering and medicine industries. The equipment comprises a lithium melting tank, a first heating furnace, a liquid sealing valve, a pure lithium tank, a second heating furnace, a vacuum pump, an argon device and a control cabinet. A lithium melting tank vacuum pipe and a lithium melting tank argon pipe are arranged at the upper part of the lithium melting tank; a filter barrel is arranged in the lithium melting tank, and is suspended at the upper end of a tank body of the lithium melting tank; a lithium melting tank discharge pipe is arranged at the bottom of the lithium melting tank; and the first heating furnace is arranged outside the lithium melting tank. A pure lithium tank feed pipe is arranged at one side of the upper part of the pure lithium tank; a pure lithium tank discharge pipe is arranged at the bottom of the pure lithium tank; a pure lithium tank vacuum pipe and a pure lithium tank argon pipe are arranged at the other side of the upper part of the pure lithium tank; a pure lithium tank cover and a pure lithium tank body are totally tightly connected through a flange; a pneumatic valve cylinder is mounted on the pure lithium tank cover; long rod valves arranged in the pneumatic valve cylinder and the pure lithium tank are tightly connected through a flange; and a second heating furnace is arranged outside the pure lithium tank body.

Description

Technical field [0001] The invention relates to an industrial-grade metal lithium refining equipment and a refining method, in particular to an industrial-grade metal lithium refining equipment and a refining method dedicated to the chemical and pharmaceutical industries. Background technique [0002] Industrial-grade metallic lithium is widely used in the chemical and pharmaceutical industries. This special industrial-grade metallic lithium has special requirements for its quality: First, the sodium content in metallic lithium is relatively high, usually 1-3%. The second is the low content of solid slag. [0003] In industrial production, the crude lithium prepared by molten salt electrolysis is mixed with a large amount of molten salt electrolyte lithium chloride and potassium chloride, and the obtained metal lithium contains more impurities such as lithium oxide and lithium nitride. [0004] The traditional refining process is to melt the crude lithium in an open oil-bath crucibl...

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 Patents(China)
IPC IPC(8): C22B26/12C22B9/04
Inventor 许文李文生
Owner 南通盛能新材料科技有限公司
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products