Vanadium titano-magnetite tailing glass-ceramic and preparation method thereof

A technology of vanadium-titanium magnetite and glass-ceramics, which is applied in the field of glass-ceramics and its preparation, can solve problems such as economic losses, resource waste, and large reserves, and achieve reduced production costs, neat and tight crystal grains, and safety and environmental issues

Inactive Publication Date: 2015-09-23
INST OF PROCESS ENG CHINESE ACAD OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] At present, due to the limitations of technical means and the high cost of secondary or tertiary beneficiation, a large number of low-grade vanadium-titanium magnetite iron, titanium, and vanadium beneficiation tailings are accumulated, and

Method used

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  • Vanadium titano-magnetite tailing glass-ceramic and preparation method thereof
  • Vanadium titano-magnetite tailing glass-ceramic and preparation method thereof

Examples

Experimental program
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Effect test

Embodiment 1

[0029] A vanadium-titanium magnetite tailings glass-ceramic and a preparation method thereof, comprising the following steps:

[0030] (1) Dry and pulverize the tailings of vanadium-titanium magnetite, accurately weigh 65.0kg of tailings, 16.6kg of quartz sand (SiO 2 ), 4.7kg alumina (Al 2 o 3 ), 6.4kg magnesium oxide (MgO), 6.2kg sodium carbonate (Na 2 CO 3 ), 4.4kg calcium carbonate (CaCO 3 ), 0.8kg chromium trioxide (Cr 2 o 3 ), 2.0kg fluorite (CaF 2 ), 2.2kg sodium nitrate (NaNO 3 ). The vanadium-titanium magnetite tailings, auxiliary raw materials and flux clarifying agent are put into the mixer and mixed evenly to form the basic batch of glass-ceramics.

[0031] (2) Put the basic batch material of glass-ceramic into a melting furnace for melting at a melting temperature of 1470° C. for 1.5 hours. After the melt is homogenized and clarified, a qualified molten glass is obtained.

[0032] (3) Pour the molten glass into the mold, and send it into the crystallizati...

Embodiment 2

[0036] A vanadium-titanium magnetite tailings glass-ceramic and a preparation method thereof, comprising the following steps:

[0037] (1) Dry and pulverize the vanadium-titanium magnetite tailings, accurately weigh 60.0kg tailings, 19.2kg quartz sand (SiO 2 ), 5.2kg alumina (Al 2 o 3 ), 6.7kg magnesium oxide (MgO), 6.5kg sodium carbonate (Na 2 CO 3 ), 5.7kg calcium carbonate (CaCO 3 ), 0.8kg chromium trioxide (Cr 2 o 3 ), 2.0kg fluorite (CaF 2 ), 2.2kg sodium nitrate (NaNO 3 ). The vanadium-titanium magnetite tailings, auxiliary raw materials and flux clarifying agent are put into the mixer and mixed evenly to form the basic batch of glass-ceramics.

[0038] (2) Put the basic batch material of glass-ceramic into a melting furnace for melting at a melting temperature of 1470° C. for 1.5 hours. After the melt is homogenized and clarified, a qualified molten glass is obtained.

[0039] (3) Pour the molten glass into the mold, and send it into the crystallization furnac...

Embodiment 3

[0043] A vanadium-titanium magnetite tailings glass-ceramic and a preparation method thereof, comprising the following steps:

[0044] (1) Dry and pulverize the vanadium-titanium magnetite tailings, accurately weigh 55.0kg tailings, 21.7kg quartz sand (SiO 2 ), 5.7kg alumina (Al 2 o 3 ), 6.9kg magnesium oxide (MgO), 6.7kg sodium carbonate (Na 2 CO 3 ), 0.3kg potassium carbonate (K 2 CO 3 ), 7.0kg calcium carbonate (CaCO 3 ), 0.8kg chromium trioxide (Cr 2 o 3 ), 2.0kg fluorite (CaF 2 ), 2.2kg sodium nitrate (NaNO 3 ). The vanadium-titanium magnetite tailings, auxiliary raw materials and flux clarifying agent are put into the mixer and mixed evenly to form the basic batch of glass-ceramics.

[0045] (2) Put the basic batch material of glass-ceramics into a high-temperature furnace for melting at a melting temperature of 1470° C. for 1.5 hours. After the melt is homogenized and clarified, a qualified glass liquid is obtained.

[0046] (3) Pour the molten glass into th...

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Abstract

The invention relates to vanadium titano-magnetite tailing glass-ceramic and a preparation method thereof. The vanadium titano-magnetite tailing glass-ceramic takes vanadium titano-magnetite tailings as a main raw material, and takes silica or silica sand (SiO2), limestone or calcite (CaCO3), sodium carbonate (Na2CO3), alumina (Al2O3), magnesium oxide (MgO), chromium sesquioxide (Cr2O3), calcium fluoride (CaF2) and sodium nitrate (NaNO3) as auxiliary raw materials, wherein the content of vanadium titano-magnetite tailings in all the raw materials of the glass-ceramic is 50.0 to 65.0 percent by weight. The preparation method comprises the following steps: smashing the vanadium titano-magnetite tailings; mixing the vanadium titano-magnetite tailing powder, the auxiliary raw materials and a flexible clarifying agent exactly according to a designed ingredient proportion to obtain a uniform mixture; putting the mixture into a smelter for melting; after homogenizing and clarification of glass melt, preparing a glass board or glass particles through formation or water quenching; conducting crystallization heat treatment on the formed glass board, or carrying out crystallization after a mold is filled with the glass particles; carrying out annealing to obtain a glass-ceramic board. The vanadium titano-magnetite tailing glass-ceramic and the preparation method have the advantages that the production cost of glass-ceramic is reduced; the problems of resource waste and environmental pollution are solved.

Description

technical field [0001] The invention relates to a glass-ceramic and a preparation method thereof, especially a glass-ceramic prepared from vanadium-titanium magnetite tailings and a preparation method thereof, with the purpose of realizing comprehensive resource utilization of vanadium-titanium magnetite tailings, At the same time, it provides a high-strength wear-resistant engineering glass-ceramic with excellent performance that can replace engineering materials such as natural stone and ceramic tiles. Background technique [0002] Vanadium-titanium magnetite is a mineral resource widely distributed in the world, mainly in China, South Africa, Russia, Canada, the United States, India and other countries. [0003] Vanadium-titanium magnetite is mainly distributed in my country's Panzhihua-Xichang area, Chengde-Liaoxi area and Xinjiang and other regions. Among them, the Panxi area has reserves of more than 10 billion tons. It is the largest vanadium-titanium magnetite deposi...

Claims

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Application Information

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IPC IPC(8): C03C10/00C03C10/16C03C6/10C03B32/02
Inventor 曹建尉赵庆朝王志
Owner INST OF PROCESS ENG CHINESE ACAD OF SCI
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