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Method for preparing ceramic material by virtue of copper tailings

A technology for ceramic materials and copper tailings, which is applied in the production, application, household appliances and other directions of ceramic materials, can solve the problems of difficult control and unfavorable technology promotion and application, achieve obvious social benefits, reduce energy consumption of ball milling, and realize large-scale production. The effect of resource utilization

Active Publication Date: 2016-05-04
ENERGY RES INST OF JIANGXI ACAD OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Patent publication numbers CN102924113A, CN103030341A and patent announcement numbers CN100591635C, CN102674883B have proposed the method that utilizes copper tailings to prepare porous ceramics or glass materials, and these methods are all used to utilize copper tailings to prepare porous materials, and all have feasibility in technology, but The preparation process uses a pore-forming agent, which makes the control in the production process more difficult, so it is not conducive to the promotion and application of technology
At present, there is no report on the use of copper tailings to cooperate with steel slag to prepare ceramic materials

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0010] The raw materials are weighed according to the composition of the parts by weight of each raw material. The weight ratio of each raw material is: 35% of copper tailings, 30% of steel slag, 20% of clay, 10% of feldspar, 5% of talc, and add 0.05% carboxymethyl cellulose Sodium and 0.1% sodium tripolyphosphate are mixed in a ball mill after adding water. Then the ceramic slurry is sieved and dried for powder preparation. By pressing, the green body is sintered at 1120°C. The water absorption rate of the fired product is 0.14%, the compressive strength is 109.83MPa, and the flexural strength is 58.72MPa.

Embodiment 2

[0012] The raw materials are weighed according to the composition of the parts by weight of each raw material. The weight ratio of each raw material is: 40% copper tailings, 25% steel slag, 20% clay, 10% feldspar, 5% talc, and add 0.03% carboxymethyl cellulose Sodium and 0.1% sodium tripolyphosphate are mixed in a ball mill after adding water. Then the ceramic slurry is sieved and dried for powder preparation. By pressing, the green body is sintered at 1100°C. The water absorption rate of the fired product is 0.48%, the compressive strength is 95.67MPa, and the flexural strength is 43.95MPa.

Embodiment 3

[0014] The raw materials are weighed according to the composition of the parts by weight of each raw material. The weight ratio of each raw material is: copper tailings 45%, steel slag 30%, clay 15%, feldspar 10%, talc 0%, and add 0.08% carboxymethyl cellulose Sodium and 0.2% sodium tripolyphosphate are mixed in a ball mill after adding water. Then the ceramic slurry is sieved and dried for powder preparation. By pressing, the green body is sintered at 1100°C. The water absorption rate of the fired product is 0.42%, the compressive strength is 157.64MPa, and the flexural strength is 48.28MPa.

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Abstract

The invention discloses a method for preparing a ceramic material by virtue of copper tailings, and belongs to the fields of industrial solid waste resource comprehensive utilization and environmental protection. The method comprises the following steps of ball-milling and mixing 35 to 55 parts by weight of copper tailings, 25 to 40 parts by weight of steel slag, 10 to 25 parts by weight of clay, 0 to 15 parts by weight of feldspar, 0 to 10 parts by weight of talc and the like, and executing the procedures of sieving, drying, pressing or extrusion molding, sintering and the like to obtain the ceramic material, wherein the firing temperature is 1,080 to 1,160 DEG C. According to the method, the ceramic material is synergistically prepared from the copper tailings and the steel slag, and the ratio of the using amount of industrial solid waste to the total weight of the raw materials in the ceramic material reaches 65 to 85 percent, so that the industrial solid waste can be resourcefully utilized in large scale, and obvious social benefits and environmental benefits can be achieved; the copper tailings and the steel slag are small in granularity, so that ball-milling energy consumption in a ceramic material production process can be reduced; the sintering temperature is lower, so that the sintering energy consumption of the ceramic material can be reduced, and economic benefits are achieved; the method is relatively simple in process and easy to popularize and use.

Description

Technical field: [0001] The invention relates to a method for preparing ceramic materials by using copper tailings, and belongs to the fields of comprehensive utilization of industrial solid waste resources and environmental protection. Background technique: [0002] The amount of solid waste produced in the process of industrial mineral processing and smelting in my country continues to increase, but the current level of comprehensive utilization of industrial tailings and smelting slag in China is not high, resulting in a huge accumulation of tailings and smelting slag in my country. Although mining and smelting enterprises continue to strengthen technological development, it is still an important task to explore effective ways to rationally utilize industrial solid waste on a large scale. [0003] Utilizing industrial solid waste as a raw material for the ceramic industry is an important way to utilize industrial solid waste on a large scale. Copper tailings are solid wa...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B33/138
CPCC04B33/138C04B2235/3463Y02P40/60
Inventor 艾仙斌范敏李晓晖熊继海孙李媛敖子强付尹宣付嘉琦
Owner ENERGY RES INST OF JIANGXI ACAD OF SCI
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