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Manufacturing method of lithium slag lightweight ceramic panel

A technology of lightweight ceramics and production methods, which is applied in the direction of ceramic products, ceramic material production, clay products, etc., can solve the problems of inability to obtain qualified lightweight ceramic plate products, difficulty in forming a skeleton structure, and low melting temperature of green bodies, etc., to achieve The effect of saving energy consumption, reducing foaming temperature and reducing production cost

Inactive Publication Date: 2018-12-21
江西庾岭晶硕新材料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, in lithium slag, aluminum oxide 20%, calcium oxide content > 11%, and manganese monoxide content > 5.5%, are directly used to prepare light ceramics The melting temperature of the green body is low during the plate, and it is difficult to form a stable skeleton structure, so it is impossible to obtain qualified light-weight ceramic plate products

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0017] A manufacturing method of a lithium slag light-weight ceramic plate is made of the following raw materials: 30wt% lithium slag, 30wt% feldspar, 30wt% quartz powder, 7wt% alumina powder, and 3wt% foaming agent;

[0018] Its preparation method comprises the following steps:

[0019] 1) Take the raw materials for dry pulverization, and mix them in proportion to obtain the mixture; the fineness of alumina powder and quartz powder is required by the present invention to be less than 325 mesh, and sufficient fineness can promote the lithium, iron, and manganese elements in lithium tailings. Form a uniform mixture with external alumina and quartz powder;

[0020] 2) After adding water to the secondary mixture, stirring, granulating, drying, and sieving to obtain granular material;

[0021] 3) Put the granules into a sagger, lay them flat and then fire them, and obtain a light ceramic plate after cooling.

[0022] The foaming agent is silicon carbide.

[0023] The final firi...

Embodiment 2

[0026] A manufacturing method of lithium slag light-weight ceramic plates is made of the following raw materials: 65wt% lithium slag, 10wt% feldspar, 20wt% quartz powder, 4.8wt% alumina powder, and 0.2wt% foaming agent;

[0027] Its preparation method comprises the following steps:

[0028] 1) Take the raw materials and carry out dry powder milling, and mix them in proportion to obtain the mixture;

[0029] 2) adding water to the mixed material, stirring, granulating, drying, and sieving to obtain the granular material;

[0030] 3) Put the granules into a sagger, lay them flat and then fire them, and obtain a light ceramic plate after cooling. The foaming agent is silicon carbide.

[0031] The final firing temperature in step 3) is 1030-1130 degrees.

[0032] The content of ferric oxide in the lithium slag is not higher than 30wt%, and the content of manganese monoxide is not higher than 10%.

Embodiment 3

[0034] A manufacturing method of lithium slag light-weight ceramic plate is made from the following raw materials: 50wt% lithium slag, 20wt% feldspar, 18wt% quartz powder, 10wt% alumina powder, and 2wt% foaming agent;

[0035] Its preparation method comprises the following steps:

[0036] 1) Take the raw materials and carry out dry powder milling, and mix them in proportion to obtain the mixture;

[0037] 2) adding water to the mixed material, stirring, granulating, drying, and sieving to obtain the granular material;

[0038] 3) Put the granules into a sagger, lay them flat and then fire them, and obtain a light ceramic plate after cooling.

[0039] Further, the foaming agent is silicon carbide.

[0040] Further, the final firing temperature in step 3) is 1030-1130 degrees.

[0041] Further, the content of ferric oxide in the lithium slag is not higher than 30wt%, and the content of manganese monoxide is not higher than 10%.

[0042] For the lightweight ceramic plates pre...

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PUM

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Abstract

The invention relates to a manufacturing method of a lithium slag lightweight ceramic panel. The lithium slag lightweight ceramic panel is prepared from the following raw materials: 30-65 wt% of lithium slag, 10-30 wt% of feldspar, 10-30 wt% of quartz powder, 1-10 wt% of alumina powder, and 0.2-3 wt% of foaming agent; the preparation method comprises the following steps: 1) take raw materials fordry milling and mix in proportion to obtain a mixture; 2) add water to the mixture, stir, granulate, dry and sieve to obtain granules; 3) pack the granules in a sagger, spread out and then fire to obtain a lightweight ceramic panel after cooling. By the manufacturing method, a certain proportion of alumina powder, quartz powder and feldspar are added to the lithium tail slag, thereby overcoming the technical problem of preparing the lightweight ceramic panel from the lithium tail slag, and obtaining a qualified lightweight ceramic panel.

Description

technical field [0001] The invention belongs to the technical field of preparation of light ceramic plates, in particular to a method for producing lithium slag light ceramic plates. Background technique [0002] In the lepidolite chemical extraction process of lithium carbonate, a large amount of lithium slag will be produced. At present, the lithium slag is simply landfilled, which not only wastes resources, but also endangers the environment. [0003] Lithium slag contains components such as alumina and silicon dioxide, which are close to clay components, and can be used as raw materials for the production of lightweight ceramic plates. However, in lithium slag, aluminum oxide < 10%, silicon dioxide < 35%, ferric oxide content > 20%, calcium oxide content > 11%, and manganese monoxide content > 5.5%, are directly used to prepare light ceramics The melting temperature of the green body is low during the plate, and it is difficult to form a stable skeleton s...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B33/138C04B38/02
CPCC04B33/138C04B38/02C04B2235/3217C04B2235/3463C04B2235/3418C04B38/0051C04B38/0074Y02P40/60
Inventor 钟路生聂复南
Owner 江西庾岭晶硕新材料有限公司
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