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A preparation method of modified granite waste rock powder crystalline glaze

A technology of granite powder and crystalline glaze, which is applied in the field of ceramics, can solve the problems of low utilization rate of granite waste, the inability to fundamentally solve the problem of granite waste treatment, difficulty in achieving large-scale, high-efficiency utilization, etc., to improve density and gloss degree, high value-added utilization, and high utilization rate

Active Publication Date: 2019-10-29
NANCHANG HANGKONG UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In the above studies, the utilization rate of granite waste is low, it is difficult to realize large-scale and high-efficiency utilization, and it is impossible to fundamentally solve the problem of granite waste treatment

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0019] A modified granite waste rock powder crystalline glaze, which uses the following raw materials in parts by mass: 94 parts of granite powder, 3 parts of calcium fluoride, 2 parts of phosphorus pentoxide, and 1 part of sodium carboxymethyl cellulose. Quantitative portions of granite powder were weighed, and the mass concentration of 2% KH560 silane coupling agent alcohol solution was added to modify the granite powder by wet ball milling. Mix the dried powder with magnesium fluoride, phosphorus pentoxide and sodium carboxymethyl cellulose evenly. Add water with a mass ratio of 80% to the above powder, and ball mill for 1 hour to obtain a water-based glaze.

[0020] The glaze is sprayed on the surface of the clay body, and after drying, it is fired at 1150°C for 2 hours to obtain a crystalline glaze. The luster of the crystal glaze is 80%, and the pattern is in the shape of brown spots.

Embodiment 2

[0022] A modified granite waste rock powder crystalline glaze, which uses the following raw materials in parts by mass: 85 parts of granite powder, 12 parts of waste marble powder, 1 part of phosphorus pentoxide, and 2 parts of sodium carboxymethyl cellulose. Quantitative portions of granite powder were weighed, and the mass concentration of 2% KH560 silane coupling agent alcohol solution was added to modify the granite powder by wet ball milling. Mix the dried powder with waste marble powder, phosphorus pentoxide and sodium carboxymethyl cellulose evenly. Water with a mass ratio of 80% was added to the above powder, and ball milled for 1 hour to obtain a water-based glaze slurry.

[0023] Spray the glaze slurry on the surface of the clay body, dry it and sinter it at 1200°C for 2 hours, and obtain a crystalline glaze after cooling. The glossiness of the crystalline glaze is 86%, and the pattern is reddish-brown petal-like.

Embodiment 3

[0025] A modified granite waste rock powder crystalline glaze is prepared from the following raw materials in parts by weight: 88 parts of granite powder, 1 part of magnesium fluoride, 8 parts of marble waste rock powder, 1 part of boric acid, and 2 parts of sodium carboxymethylcellulose. Quantitative portions of granite powder were weighed, and the mass concentration of 2% KH560 silane coupling agent alcohol solution was added to modify the granite powder by wet ball milling. Mix the dried powder with magnesium fluoride, phosphorus pentoxide and sodium carboxymethyl cellulose and stir thoroughly. Water with a mass ratio of 80% was added to the above powder, and ball milled for 1 hour to obtain a water-based glaze slurry.

[0026] The glaze slurry is sprayed on the surface of the clay body, after drying, it is fired at 1050°C for 4 hours, and the crystalline glaze is obtained after cooling. The glossiness of the crystalline glaze is 83%, and the pattern is reddish-brown snowf...

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Abstract

The invention discloses a preparation method of modified granite waste rock powder crystalline glaze, which belongs to the technical field of ceramics. The raw material composition of the granite waste stone powder crystal glaze: 80-95 parts of modified granite powder, 1-15 parts of crystal nucleus agent, 1-5 parts of sintering aid, and 1-2 parts of dispersant. After the raw materials are prepared, water is added and mixed uniformly by ball milling to obtain a glaze, which is sprayed, dried and sintered to prepare a crystalline glaze. The invention has the characteristics of high utilization rate of granite waste rock powder, environmental protection process, rich glaze pattern, low cost, etc., and can realize large-scale high value-added utilization of granite waste rock powder.

Description

technical field [0001] The invention relates to the technical field of ceramics, in particular to a preparation method of modified granite waste rock powder crystal glaze. Background technique [0002] Granite is a natural stone composed mainly of quartz and feldspar. In recent years, the national natural granite mining volume has shown a rapid increase year by year. The output of granite in 2013-2015 reached 465 million cubic meters, 590 million cubic meters and 672 million cubic meters respectively. At the same time, the mining and processing process produced Hundreds of millions of tons of stone waste. At present, the domestic conversion and utilization of granite waste is mainly building fire-resistant bricks (CN201410200144.1) and glass-ceramics (glass-ceramic prepared from granite waste [J]. Synthetic Chemistry, 2004; 12(1): 15-16) and so on. In the above studies, the utilization rate of granite waste is low, it is difficult to realize large-scale and high-efficiency...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C03C8/14
CPCC03C8/14
Inventor 丛欣泉卢金山邹传明李映德
Owner NANCHANG HANGKONG UNIVERSITY
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