Unlock instant, AI-driven research and patent intelligence for your innovation.

A kind of tailings mas series glass ceramic insulating material and preparation method thereof

A technology of glass ceramics and insulating materials, applied in the field of tailings MAS glass ceramic insulating materials and their preparation

Active Publication Date: 2021-04-09
INNER MONGOLIA UNIV OF SCI & TECH
View PDF8 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the current research on MAS-based glass ceramics mainly focuses on cordierite dielectric materials, and there are few reports as insulating materials.

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • A kind of tailings mas series glass ceramic insulating material and preparation method thereof
  • A kind of tailings mas series glass ceramic insulating material and preparation method thereof
  • A kind of tailings mas series glass ceramic insulating material and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0044] Table 2 Chemical composition of gold tailings in Inner Mongolia (wt.%)

[0045]

[0046] A tailings MAS glass ceramic insulating material, comprising the following raw materials in parts by weight: 49.7 parts of Inner Mongolia gold tailings, 5.2 parts of quartz sand, 22.7 parts of alumina, 8.6 parts of magnesium oxide, 7.1 parts of borax, 6.6 parts of titanium dioxide; 2 / Al 2 o 3 =1.27.

[0047] SiO 2 / Al 2 o 3 Calculation method:

[0048] SiO 2 : 49.7 (number of gold tailings) × 59.4% (SiO 2 content)+5.2(added SiO 2 number of copies) = 34.72

[0049] al 2 o 3 : 49.7 (number of gold tailings) × 9.33% (Al 2 o 3 content)+22.7(added Al 2 o 3 number of copies) = 27.33

[0050] SiO 2 / Al 2 o 3 = 34.72 / 27.33 = 1.27

[0051] Its preparation method comprises the following steps:

[0052] (1) Weigh and mix according to the raw material formula;

[0053] (2) Put the uniformly mixed raw materials into the electric furnace, heat to 1400°C, keep it warm for 4...

Embodiment 2

[0059] Table 3 The main chemical composition of molybdenum tailings in Inner Mongolia (wt.%)

[0060]

[0061] A tailing MAS glass ceramic insulating material, comprising the following raw materials in parts by weight: 40.9 parts of Inner Mongolia molybdenum tailings, 7.7 parts of quartz sand, 20.2 parts of alumina, 8.6 parts of magnesium oxide, 7.1 parts of borax, 6.6 parts of titanium dioxide; 2 / Al 2 o 3 = 1.42.

[0062] Its preparation method comprises the following steps:

[0063] (1) Weigh and mix according to the raw material formula;

[0064] (2) Put the uniformly mixed raw materials into the electric furnace, heat to 1400°C, keep it warm for 2 hours, make it melt and clarify, and obtain molten glass;

[0065] (3) Casting molten glass into a mold preheated to 550°C for molding, and then demoulding;

[0066] (4) The sample after demoulding is placed in an electric furnace and kept at 550°C for 2h for annealing; kept at 800°C for 1h for nucleation; kept at 920°C ...

Embodiment 3

[0070] A tailings MAS glass ceramic insulating material, comprising the following raw materials in parts by weight: 54.8 parts of Inner Mongolia gold tailings, 11.3 parts of quartz sand, 15 parts of alumina, 13.2 parts of magnesium oxide, 2 parts of soda ash, 3.7 parts of titanium dioxide; 2 / Al 2 o 3 =2.39.

[0071] Its preparation method comprises the following steps:

[0072] (1) Weigh and mix according to the raw material formula;

[0073] (2) Add the homogeneously mixed raw materials into the electric furnace, heat to 1450°C, keep the temperature for 3 hours, make it melt and clarify, and obtain the molten glass;

[0074] (3) Casting molten glass into a mold preheated to 550°C for molding, and then demoulding;

[0075] (4) The sample after demoulding was placed in an electric furnace and kept at 550°C for 3h for annealing; kept at 820°C for 1h for nucleation; kept at 950°C for 3h for crystallization;

[0076] (5) Naturally cool to room temperature in an electric furn...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

PropertyMeasurementUnit
sizeaaaaaaaaaa
sizeaaaaaaaaaa
Login to View More

Abstract

The invention discloses a tailings MAS glass ceramic insulating material and a preparation method thereof, which is characterized in that solid wastes such as gold tailings and molybdenum tailings are used as main raw materials, and silicon elements in the molybdenum tailings and gold tailings are used With the advantage of high aluminum content, by changing the SiO 2 / Al 2 o 3 mass ratio, to prepare glass ceramics with pseudo-sapphire and enstatite as the main crystal phase. This method can not only reduce the cost of raw materials for preparing glass ceramics, but also solve the pollution of metal tailings to the environment. The preparation of insulating glass-ceramic materials from waste provides a new idea. The fake sapphire and enstatite phase insulating glass-ceramics prepared by the invention have excellent electrical insulation properties, small dielectric loss, stable dielectric constant, high mechanical strength, high temperature resistance and good acid and alkali resistance. It can provide a reference for the application of all silicate solid wastes in the field of functional materials represented by insulating materials. It has high social and economic benefits.

Description

technical field [0001] The invention relates to an insulating material, in particular to a tailing MAS glass ceramic insulating material and a preparation method thereof. Background technique [0002] As one of many insulating materials, insulating glass-ceramics inherits the characteristics of ordinary oxide glass-ceramics, which have extensive requirements for basic glass components, high hardness, high wear resistance, and good chemical stability, and also has good heat resistance. , adjustable coefficient of thermal expansion, high mechanical strength, good insulation performance, excellent dielectric properties, etc., can be widely used in the power industry. On the other hand, the diversification of basic glass components and crystal phases has also laid a solid foundation for the modification and performance development of insulating glass ceramics. [0003] As a polycrystalline solid material composed of crystal phase and glass phase, glass ceramics not only has the...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Patents(China)
IPC IPC(8): C03C10/00C03C10/04C03C6/04C03B25/00C03B32/02C03C4/00
CPCC03B25/00C03B32/02C03C1/002C03C4/00C03C10/0045C03C10/0063
Inventor 张雪峰沈保根李保卫赵同云殷哲一贾晓林刘芳邓磊波
Owner INNER MONGOLIA UNIV OF SCI & TECH