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Method for manufacturing red crystallite glass from high-phosphorus hematite tailings

A technology of hematite tailings and glass-ceramics, applied in the field of new building materials, to achieve excellent performance and wide application

Inactive Publication Date: 2013-05-15
张文知
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004]The high-phosphorus hematite tailings have been ground very finely, and its composition is similar to that of glass. It is very promising to study its application in the field of building materials manufacturing, but There is no report on the manufacture of red glass-ceramic

Method used

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  • Method for manufacturing red crystallite glass from high-phosphorus hematite tailings

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Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0012] Drying high phosphorus hematite tailings;

[0013] Calcite powder: industrial product

[0014] Borax: industrial product

[0015] Basic magnesium carbonate: industrial product

[0016] Soda ash: industrial product

[0017] 2. Formula

[0018]

[0019] 3. Manufacturing process

[0020] 1. Mix and grind

[0021] Put the prepared material into the ball mill according to the formula, grind it to below 200 mesh, and mix it evenly during the grinding process.

[0022] 2. Firing and Processing

[0023] Put the prepared material into a glass melting furnace and melt it, and keep it at 1450°C for four hours; the obtained glass liquid can be formed by different methods according to requirements, such as casting method, drawing method, molding method, centrifugation method, etc., slightly cooled After demoulding, it is sent to the crystallization furnace at a temperature of about 500°C for chemical treatment; the steps of crystallization treatment are: first raise the t...

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PUM

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Abstract

The invention discloses a method for manufacturing red crystallite glass from high-phosphorus hematite tailings. The method comprises the following steps of: using high-phosphorus hematite tailings as a main raw material, adding proper glass powder, calcite, borax, basic magnesium carbonate and soda ash to enable the chemical composition of a manufactured product to satisfy the requirement of CaO-AL2O3-SiO2 ternary system phase diagram; and high-content ferric oxide in the high-phosphorus hematite tailings can be used as a colorant and nucleating agent, and once sintering is used in the manufacturing process. The product disclosed by the invention has easily obtained raw materials, is low in cost, good in quality, uniform and pure in color, and has good popularization and application value.

Description

technical field [0001] The invention relates to the technical field of new building materials, in particular to a method for manufacturing red glass-ceramics from high-phosphorus hematite tailings. Background technique [0002] Red glass-ceramic is an urgently needed product in the market. It has high density, corrosion resistance, wear resistance, non-conductivity, non-magnetism, high strength, and can be made into plates with smooth surfaces. It has a very wide range of uses. [0003] There are tens of billions of tons of high phosphorus hematite in the world, and China also has reserves of more than ten billion tons. The development and utilization of high-phosphorus hematite has become a worldwide problem due to the excessively high harmful impurity phosphorus and the difficulty in beneficiation. It is also the world's largest graphite producer and largest exporter. The earthy graphite ore produced is famous for its high grade. High-phosphorus hematite tailings are...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C03C10/00C03B32/02
Inventor 张文知
Owner 张文知