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Process for preparing foamed glass form titan-containing blast furnace slag

A technology of foam glass and blast furnace slag, which is applied in the field of comprehensive utilization of metallurgical resources and material preparation, can solve the problems of low utilization rate of titanium-containing blast furnace slag and difficult utilization of titanium-containing blast furnace slag, and achieve low production cost, good product quality, No secondary pollution effect

Active Publication Date: 2008-11-19
NORTHEASTERN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] Purpose of the invention: the purpose of the present invention is to solve the problem of difficult utilization and treatment of titanium-containing blast furnace slag in the past and the low utilization rate of titanium-containing blast furnace slag in the field of material preparation

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0018] a, the preparation of glassy raw material: will contain TiO 2 The 14% blast furnace slag raw material was dried in an oven at 60°C for 8 hours, then ground and passed through a 200-mesh sieve. Then mix according to the mass ratio of titanium-containing blast furnace slag: microsilica powder: sodium carbonate=20:80:25, wherein the silicon oxide content is 72.843%, the sodium oxide content is 13.350%, and the calcium oxide content is 5.997%;

[0019] b. Firing in a glassy state: put the mixture in step a into a corundum crucible, heat up to 1350°C at a heating rate of 10°C / min, heat it for 90 minutes, and then quench it in water;

[0020] c, preparation of foam glass raw material: calcium carbonate, borax and sodium phosphate are dried and ground to 180 mesh respectively; then the glass after water quenching in step b is dried and ground to 160 mesh, and the Calcium, borax and sodium phosphate are ground together for 3 minutes to achieve uniform mixing to form foam glass...

Embodiment 2

[0025] a, the preparation of glassy raw material: will contain TiO 2 20% of the blast furnace slag raw material was dried in an oven at 60°C for 8 hours, and then ground to 180-200 meshes respectively. And mix according to the ratio of titanium-containing blast furnace slag: microsilica: sodium carbonate=25 parts: 75 parts: 25 parts, wherein the silicon oxide content is 69.775%, the sodium oxide content is 13.4%, and the calcium oxide content is 7.183%;

[0026] b. Firing in the glass state: put the mixture prepared in step a into a corundum crucible, heat up to 1350°C at a heating rate of 10°C / min, heat it for 90 minutes, and then quench it in water;

[0027] c. Preparation of foam glass raw materials: Dry and grind calcium carbonate, borax and sodium phosphate to 180-200 mesh respectively; then dry and grind the glass after water quenching in step b to 160-180 mesh, Calcium, borax and sodium phosphate go into mill and grind together 3min, reach uniform mixing, form foam gla...

Embodiment 3

[0031] a, the preparation of glassy raw material: will contain TiO 2 26% of the blast furnace slag raw material was dried in an oven at 60°C for 8 hours, and then ground to 180-200 meshes respectively. And mix according to the ratio of titanium-containing blast furnace slag: microsilica: sodium carbonate=30 parts: 70 parts: 25 parts, wherein the silicon oxide content is 66.699%, the sodium oxide content is 13.45%, and the calcium oxide content is 8.59%;

[0032] b. Firing in the glass state: put the mixture prepared in step a into a corundum crucible, heat up to 1350°C at a heating rate of 10°C / min, heat it for 90 minutes, and then quench it in water;

[0033] c. Preparation of foam glass raw materials: Dry and grind calcium carbonate, borax and sodium phosphate to 180-200 mesh respectively; then dry and grind the glass after water quenching in step b to 160-180 mesh, The fine calcium carbonate, borax and sodium phosphate are transferred into the mill together for grinding fo...

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Abstract

The invention provides a method for preparing foam glass by utilization of titaniferous blast furnace slag, belonging to the metallurgical resource comprehensive utilization and material preparation field. The method mainly is to take the blast furnace slag containing 14 to 29 percent of TiO2 as base material, to adequately introduce silicious raw materials to generate vitreous substances, to add foaming agent, foam stabilizer and fluxing agent, and to prepare the foam glass with a specified heat treatment system. The method solves the problems that the prior titaniferous blast furnace slag is difficult to utilize and process and the utilization rate of the titaniferous blast furnace slag in the material preparation field is low, not only creates a novel path for utilization of the titaniferous blast furnace slag but also finds very cheap raw materials for production, and has the advantages of low production cost, good product quality, simple production operation, no secondary pollution and so on.

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] Since the advent of foam glass in 1935, it has flourished all over the world. In the early 1950s, Chinese researchers also began to devote themselves to the research of foam glass production technology, and made positive progress. In recent years, in line with the purpose of developing a circular economy and improving the comprehensive and effective utilization of resources, domestic scientific researchers have been constantly seeking methods for preparing foam glass from industrial solid waste. [0003] With the rapid development of iron and steel enterprises, a large amount of TiO-containing 2 The blast furnace waste slag piled up like a mountain, has not found a better way to deal with it...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C03C11/00
Inventor 薛向欣马明龙杨合段培宁姜涛
Owner NORTHEASTERN UNIV
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