Raw material mixing method in lithium manganate material wet production technology

A production process and technology of lithium manganate, applied in the direction of manganate/permanganate, etc., can solve the problems of large addition amount of water medium, poor dispersion effect, long mixing time, etc., to reduce the addition amount, save costs, The effect of short mixing times

Inactive Publication Date: 2012-02-08
WUXI JEWEL POWER & MATERIALS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] However, in the process of realizing the present invention, the inventors found that there are at least defects in the prior art such as low solid content, large amount of water medium added, high viscosity, poor dispersion effect, long mixing time, large energy consumption and high cost.

Method used

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Embodiment Construction

[0012] The following description will be made in conjunction with preferred embodiments of the present invention. It should be understood that the preferred embodiments described here are only used to illustrate and explain the present invention, and are not intended to limit the present invention.

[0013] According to an embodiment of the present invention, a method for mixing raw materials in a wet production process of lithium manganate material is provided, including the steps of ball milling with water, spray drying, mixing and sintering. In the process of ball milling with water, electrolyte or its solution is added, The added weight of the electrolyte or its solution is 0.05-2% of the added weight of the aqueous medium. Among them, water-added ball milling refers to adding materials into the ball mill under the condition of water phase, and using the mutual motion of the spheres to drive the dispersion of materials in the water phase to form a suspension, so as to achie...

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Abstract

The invention discloses a raw material mixing method used in a lithium manganate material wet production technology. The method comprises steps of ball-milling with added water, spray-drying, mixing and sintering. In the step of ball-milling with added water, an electrolyte or a solution thereof is added in, wherein the weight of the added electrolyte or the solution thereof is 0.05 to 2% of that of an aqueous medium. With the raw material mixing method used in the lithium manganate material wet production technology, defects in prior arts of low solid content, high aqueous medium addition, high viscosity, poor dispersion effect, long mixing time, high energy consumption and high cost can be overcome; and advantages of high solid content, low aqueous medium addition, low viscosity, good dispersion effect, short mixing time, low energy consumption and low cost can be realized.

Description

technical field [0001] The invention relates to lithium manganate production technology, in particular to a raw material mixing method in the wet production process of lithium manganate material. Background technique [0002] At present, the production methods of lithium manganate include dry production and wet production, among which, the mixing effect of wet production is better, and the cost of dry production is relatively low. [0003] Generally, in the wet production of lithium manganate, after mixing the raw materials with water, the solid content is generally 60-75%, the materials are mixed evenly, the slurry is stable, and a certain viscosity can be guaranteed, so as to create benefits for subsequent spray drying. condition. [0004] However, in the process of realizing the present invention, the inventors found that the prior art at least has defects such as low solid content, large amount of water medium added, high viscosity, poor dispersion effect, long mixing t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C01G45/12
Inventor 马岩华
Owner WUXI JEWEL POWER & MATERIALS
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