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Method for preparing microcrystalline foamed glass by titanium-containing blast furnace slag

A technology of microcrystalline foam glass and foam glass, which is applied in the field of comprehensive utilization of metallurgical resources and material preparation. Low utilization rate of titanium blast furnace slag, etc., to achieve low production cost, simple production operation and good product quality

Active Publication Date: 2008-12-17
NORTHEASTERN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] Purpose of the invention: the purpose of the present invention is to solve the problems in the past: a, the problem that titanium-containing blast furnace slag is difficult to use and handle; b, the problem of low utilization rate of titanium-containing blast furnace slag in the field of material preparation; c, the previous microcrystalline foam The two processes of foaming and microcrystallization in the glass preparation process are not easy to take into account in the heat treatment process, and the uniformity of the grain size and grain distribution cannot be well grasped.

Method used

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  • Method for preparing microcrystalline foamed glass by titanium-containing blast furnace slag

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Experimental program
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Effect test

Embodiment 1

[0022] a, the preparation of glassy raw material: will contain TiO 2 Put the 14% blast furnace slag raw material into an oven at 60°C and dry for 8 hours, grind it finely, pass through a 200-mesh sieve, and then mix the mass ratio of titanium-containing blast furnace slag: micro silica fume: sodium carbonate = 20:80:25 , mixed ingredients; its silicon oxide content is 62.76%, the sodium oxide content is 15.20%, and the calcium oxide content is 6.5%;

[0023] b. Firing in glassy state: put the mixed raw material prepared in step a into a crucible, heat up to 1350°C at a heating rate of 10°C / min and burn for 3 hours, keep it warm for 90min, and quench in water to obtain base glass;

[0024] c, preparation of foam glass raw material: dry and grind calcium carbonate, borax and sodium phosphate respectively to 200 mesh; then dry and grind the glass after water quenching in step b to 180 mesh, Calcium carbonate, borax and sodium phosphate are jointly ground 10min, reach uniform mi...

Embodiment 2

[0029] a, the preparation of glassy raw material: will contain TiO 2 Put 20% blast furnace slag raw material into an oven at 60°C and dry for 8 hours, then grind to 180-200 mesh respectively, and then mix the mass ratio of titanium-containing blast furnace slag:quartzite:sodium carbonate=25:75:25 , mixed ingredients; its silicon oxide content is 61.57%, the sodium oxide content is 15.22%, and the calcium oxide content is 6.92%.

[0030] b. Firing in glassy state: put the mixed raw material prepared in step a into a crucible, heat up to 1350°C at a heating rate of 10°C / min and burn for 3 hours, keep it warm for 90min, and quench in water to obtain base glass;

[0031] c, preparation of foam glass raw material: dry and grind calcium carbonate, borax and sodium phosphate respectively to 200 mesh; then dry and grind the glass after water quenching in step b to 180 mesh, Calcium carbonate, borax and sodium phosphate are grinded together 10min, reach uniform mixing, form foam glas...

Embodiment 3

[0036] a, the preparation of glassy raw material: will contain TiO 2 Put the 26% blast furnace slag raw material in an oven at 60°C for 8 hours, then grind it to 180-200 mesh, and then mix the titanium-containing blast furnace slag:quartz sandstone:sodium carbonate=30:70:25 , mixed ingredients; its silicon oxide content is 59.78%, the sodium oxide content is 15.24%, and the calcium oxide content is 7.55%.

[0037] b. Firing in glassy state: put the mixed raw material prepared in step a into a crucible, heat up to 1350°C at a heating rate of 10°C / min and burn for 3 hours, keep it warm for 90min, and quench in water to obtain base glass;

[0038] c, preparation of foam glass raw material: dry and grind calcium carbonate, borax and sodium phosphate respectively to 200 mesh; then dry and grind the glass after water quenching in step b to 180 mesh, Calcium carbonate, borax and sodium phosphate are grinded together 10min, reach uniform mixing, form foam glass raw material stand-by...

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Abstract

The invention provides a method adopting the blast-furnace slag containing titanium to prepare foam glass, belonging to the metallurgy source comprehensive utilization and material preparation filed. The invention mainly adopts the blast-furnace slag containing 14 to 29 percent of TiO2 as the basic material, and properly adopts silicon materials to generate glass substances, and then adds foaming agent, foam stabilizer and fusing assistant to prepare foam glass-ceramic according to a special heat disposal system. The invention has the advantages that the manufacturing cost is low; the product quality is better; the manufacturing operation is simple; the second-time contamination can be avoided and the product volume density is low, etc.

Description

Technical field: [0001] The invention belongs to the field of comprehensive utilization of metallurgical resources and material preparation, and in particular relates to a method for preparing foam glass by utilizing titanium-containing blast furnace slag. Background technique: [0002] Microcrystalline foam glass is composed of three parts: glass phase, crystal and pores. In the glass phase matrix with a large number of pores evenly distributed, a large number of tiny crystals are distributed, so that the glass and crystal network are connected together to form a glass crystal interweaving structure. A new multifunctional material with superior performance. The United States and Japan have started research on microcrystalline foam glass since 1992, while my country has only started in recent years, and most of them use waste glass as the main raw material to prepare microcrystalline foam glass materials. In line with the purpose of developing circular economy and improving...

Claims

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Application Information

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IPC IPC(8): C03C11/00C03C10/00C03C6/10
Inventor 薛向欣马明龙杨合段培宁姜涛唐友权
Owner NORTHEASTERN UNIV
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