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Method used for producing stone-like ceramic tiles from rare-earth tailing

A process method and technology of rare earth tailings, applied in the field of building ceramics production, can solve the problems of rare earth tailings not in the research scope, high extraction cost, complicated extraction process, etc., and achieve the effect of realistic effect, convenient acquisition and large stock.

Inactive Publication Date: 2015-12-09
江西省石湾环球陶瓷有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, they are researched with specific rare earth elements with high purity, but the rare earth elements used in actual production are complex in extraction process and high in extraction cost, whether they are extracted or purchased, the production cost is greatly increased, and they are discarded. The rare earth tailings are not in the scope of its research

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0013] The production process of this embodiment includes the conventional procedures of milling, granulating, pressing adobe, drying, and kiln firing. The weight percentage formula is: rare earth tailings 55%, slag 22%, low temperature sand 20%, wollastonite 3%, the above four materials are 100% of the whole, on this basis, the relative percentage of the overall weight is added to other materials: Bauxite 3%, water glass 0.3%, water reducer 0.2%, sodium tripolyphosphate 0.05%. The rare earth tailings are ionic rare earth tailings in Jiangxi Province, containing quartz, mica, feldspar and clay silicate minerals, wherein SiO 2 The content is 70~71.5%, Al 2 o 3 The content is 16.7-17.5%.

[0014] 1. The ingredients of the above formula are divided into ball stones (the total weight of medium-aluminum ball stones used in the ball mill tank, the aluminum content is about 65%, and the diameter is 45-55mm): ingredients (total weight of formula raw materials): water ratio is 2:1 ...

Embodiment 2

[0020] The procedure of the present embodiment is the same as that of the first embodiment, except that the ratio of the slurry is different. The weight percentage formula of the specific slurry is: 60% of rare earth tailings, 21% of clay, 16% of low temperature sand, 3% of wollastonite. The above four materials are 100% of the whole. Percentage of other materials: bauxite 4%, water glass 0.3%, water reducing agent 0.15%, sodium tripolyphosphate 0.1%.

Embodiment 3

[0022] The key point of this embodiment is that in addition to the specific slurry, the slurry required in the powder making process of preparing the powder also has a second formula slurry. And the ratio of the amount of the specific slurry to the sum of the amount of the specific slurry and the second formula slurry is 60%, that is, the amount of the specific slurry accounts for 60 parts, and the second formula slurry accounts for 40 parts.

[0023] Among them, the weight percentage formula of the specific slurry is: rare earth tailings 55%, slag 24%, low temperature sand 17%, wollastonite 4%, the above four materials are 100% as a whole, and the overall weight is added on this basis The relative percentage of other materials: bauxite 3%, water glass 0.3%, water reducing agent 0.15%, sodium tripolyphosphate 0.1%. Adding water and ball milling is the same as in Example 1.

[0024] The weight percentage formula of the second formula slurry is: 35% stone powder, 25% clay, 38% ...

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Abstract

The invention relates to a method used for producing stone-like ceramic tiles from rare-earth tailing. The method comprises conventional steps of powder preparing, pelleting, green brick pressing, drying, and kilning; a special slurry used for powder preparing comprises, by weight, 50 to 60% of rare-earth tailing, 20 to 25% of mud, 15 to 25% of low temperature sand, and 2 to 5% of aedelforsite, and in addition, 2 to 5% of bauxite, 0.2 to 0.3% of sodium silicate, 0.15 to 0.25% of a water reducing agent, and 0.05 to 0.1% of sodium tripolyphosphate are added; an obtained material is subjected to water ball milling at a ratio of ball milling stone: the material: water of 2:1:0.5. According to the method, a large amount of waste rare-earth tailing which are capable of polluting the environment and possesses excellent color development effect is used for producing stone-like large-particle ceramic tiles with abundant and unique effects; high quality is achieved, cost is low, and benefit is high; and the method is capable of reducing cost and optimizing the environment.

Description

technical field [0001] The invention relates to the technical field of building ceramics production, in particular to a process for producing large-grain ceramic tiles with stone-imitating texture effects by using rare earth tailings. Background technique [0002] Imitation stone tiles not only have the three-dimensional layering and decorative effect of natural stone, but also have the advantages of environmental protection, easy care, and durable non-fading. Moreover, they can also make different types of stone materials such as bright, matte, and imitation granite. Whether it is modern style or classical style decoration, it can be used together and quietly popular. The popularity of imitation stone tiles in the field of architectural decoration is also increasing day by day. However, traditional imitation stone tiles need a large amount of chemical pigments. Too many pigments are not only difficult to control, but also costly. [0003] With the sharp reduction of natura...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B33/132
CPCY02P40/60
Inventor 骆建民
Owner 江西省石湾环球陶瓷有限公司
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