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Preparation method for light-weight refractory material

A lightweight refractory material and a technology for preparation steps, which are applied in the field of materials, can solve the problems of poor uniformity of refractory materials, poor fire resistance and mechanical properties, and high energy consumption, so as to improve fire resistance and mechanical strength, reduce material density, The effect of reducing energy consumption

Active Publication Date: 2018-01-05
长沙恒安工程技术有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] The technical problem to be solved by the present invention: Aiming at the problems of poor uniformity of traditional refractory materials, poor refractory ability and mechanical properties, and high energy consumption, a preparation method of refractory materials is provided

Method used

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  • Preparation method for light-weight refractory material

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Effect test

example 1

[0022] Take 10g of polyvinylpyrrolidone, 8g of absolute ethanol, 20g of deionized water, and 40g of styrene into a three-necked flask equipped with a stirrer, a thermometer, and a nitrogen tube. After passing nitrogen at a rate of 30mL / min for 15min, adjust the temperature to 55°C, and stirred at a speed of 120r / min for 1h to obtain a stirred liquid; according to a mass ratio of 1:1:3, prepare a mixed solution of divinylbenzene, absolute ethanol and deionized water, and prepare a mixed solution at a rate of 10mL / min Add it dropwise into a three-necked flask at a high rate, continue to react for 18 hours after the dropwise addition, and filter to obtain polystyrene microspheres; take 50g of bauxite and 5g of mica, put them in a ball mill jar and mill them at a speed of 200r / min for 1h to obtain Ball milling powder; put the ball milling powder in a beaker with 500 mL of hydrogen peroxide with a mass fraction of 20%, put the beaker in a 180W ultrasonic oscillator, and filter after...

example 2

[0024]Take 15g of polyvinylpyrrolidone, 12g of absolute ethanol, 25g of deionized water and 45g of styrene into a three-necked flask equipped with a stirrer, a thermometer and a nitrogen tube. to 60°C, and stirred at a speed of 135r / min for 1h to obtain a stirred solution; according to a mass ratio of 1:1:3, prepare a mixed solution of divinylbenzene, absolute ethanol and deionized water, and prepare a mixed solution at a rate of 10mL / min Add it dropwise into a three-necked flask at a high rate, continue to react for 20 hours after the dropwise addition is completed, and filter to obtain polystyrene microspheres; take 55g of bauxite and 5.5g of mica, put them in a ball mill jar and mill them at a speed of 250r / min for 1.5h , to obtain ball-milled powder; place the ball-milled powder in a beaker with 500 mL of hydrogen peroxide with a mass fraction of 20%, place the beaker in a 200W ultrasonic oscillator, and filter after ultrasonic oscillation for 8 hours to obtain modified bal...

example 3

[0026] Take 20g of polyvinylpyrrolidone, 16g of absolute ethanol, 30g of deionized water and 50g of styrene into a three-necked flask equipped with a stirrer, a thermometer and a nitrogen tube. to 65°C, and stirred at a speed of 150r / min for 2h to obtain a stirred solution; according to a mass ratio of 1:1:3, prepare a mixed solution of divinylbenzene, absolute ethanol and deionized water, and prepare a mixed solution at a rate of 10mL / min Add it dropwise into a three-necked flask at a high rate, continue to react for 22 hours after the dropwise addition, and filter to obtain polystyrene microspheres; take 60g of bauxite and 6g of mica, put them in a ball mill jar and mill them at a speed of 200~300r / min for 2h , to obtain ball-milled powder; place the ball-milled powder in a beaker with 500 mL of hydrogen peroxide with a mass fraction of 20%, place the beaker in a 220W ultrasonic oscillator, and filter after ultrasonic oscillation for 9 hours to obtain modified ball-milled pow...

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Abstract

The invention relates to a preparation method for a light-weight refractory material, and belongs to the technical field of materials. The preparation method comprises the following steps: adding polyvinylpyrrolidone, absolute ethyl alcohol, deionized water and styrene into a three-opening flask, introducing nitrogen, and stirring; preparing the polyvinylpyrrolidone, the absolute ethyl alcohol andthe deionized water into a mixed solution, dropwise adding the mixed solution into the flask dropwise, continuing reaction after the mixed solution is added dropwise, and filtering to obtain polystyrene microspheres; performing ball milling on bauxite and mica to obtain ball-milled powder; placing the ball-milled powder and hydrogen peroxide into the flask, performing ultrasonic oscillation andfiltering to obtain modified ball-milled powder; pouring the polystyrene microspheres, ethyl alcohol, deionized water and a surfactant into the flask, stirring, adding the ball-milled powder and sulphuric acid solution, stirring, filtering, washing and drying to obtain hollow aluminium oxide microspheres; stirring the hollow aluminium oxide microspheres, aluminium silicate, a dispersing agent, perlite and the deionized water, filling a mould with prepared stirring slurry, cooling, drying and sintering to obtain the light-weight refractory material.

Description

technical field [0001] The invention relates to a preparation method of a lightweight refractory material, belonging to the technical field of materials. Background technique [0002] In today's society, energy and environmental issues are getting more and more attention. As the basic material of high-temperature industry, refractory materials are an important direction for the future development of refractory materials to develop energy-saving, environmentally friendly and eco-friendly green refractory materials. Lightweight unshaped refractory materials not only have good heat insulation effect, can effectively reduce energy loss, but also can be used directly without high-temperature firing, which is in line with the concept of green refractory materials. With the development of society and the advancement of science and technology, there are more and more types of thermal equipment, and there are more and more requirements for the use of lightweight refractory materials...

Claims

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Application Information

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IPC IPC(8): C04B35/101C04B35/634C04B38/06
Inventor 赵宝史玉兰
Owner 长沙恒安工程技术有限公司