Black micro-crystalline glass plate made of gold ore tailings and manufacturing method thereof

A technology of glass-ceramic and a manufacturing method, applied in the field of glass-ceramic manufacturing, can solve the problems of excessive addition of alkali chemical raw materials, corrosion of furnace refractories, and high melting temperature of glass, so as to improve furnace efficiency and improve melting temperature. The effect of speed and product quality

Inactive Publication Date: 2010-04-21
君达环保科技(宝鸡)有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] The invention provides a black glass-ceramic plate made of gold tailings and a manufacturing method thereof, which solves the problems of adding a large amount of chemical raw materials to the existing glass-ceramic raw material t...

Method used

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  • Black micro-crystalline glass plate made of gold ore tailings and manufacturing method thereof
  • Black micro-crystalline glass plate made of gold ore tailings and manufacturing method thereof
  • Black micro-crystalline glass plate made of gold ore tailings and manufacturing method thereof

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Embodiment 1

[0047] First, gold tailings, quartz sand, calcite and nepheline are crushed and screened. The fineness of gold tailings can be over 40 mesh, the fineness of calcite is 80 mesh, and the calcium oxide content is 55.5%; the fineness of quartz sand is 60-80 mesh, and the silicon oxide content is 98%; the fineness of nepheline is 60-80 mesh; silicon content 54%, alumina content 28%. The soda ash is industrial-grade soda ash, and the rest of the raw materials meet the national industry quality inspection standards. The cyanide in the gold tailings is removed by ion exchange, and then the mixture is made by weighing and mixing. The weight parts of each raw material are: 80 parts of gold tailings, 1 part of nepheline, 2 parts of calcite, and quartz sand 15 parts, 4.5 parts of soda ash, 1 part of barium carbonate, 0.1 part of dicobalt trioxide, 3 parts of sodium nitrate, and 1.5 parts of borax.

[0048] Put the above mixture in a mullite crucible and melt it in a box-type electric fu...

Embodiment 2

[0050] First, gold tailings, quartz sand, calcite and nepheline are crushed and screened. The cyanide in the gold tailings is removed by ion exchange, and then weighed to make a mixture. The weight parts of each raw material ratio are: 85 parts of gold tailings, 1 part of nepheline, 1 part of calcite, and 10 parts of quartz sand. 3 parts of soda ash, 1 part of barium carbonate, 0.1 part of dicobalt trioxide, 2 parts of sodium nitrate, and 1.5 parts of borax.

[0051] The above-mentioned glass raw materials were melted in a glass tank furnace with a temperature of 1350° C. for 3.5 hours. After the melting was completed, the molten glass was directly poured into water to become glass pellets. Spread 15 kg of glass pellets in a refractory mold with a size of 6000×9000 mm and crystallize in a shuttle kiln fueled by liquefied petroleum gas at a crystallization temperature of 1050°C. Thereby, a black glass-ceramic product of 600×900×7 mm can be obtained.

Embodiment 3

[0053]First, gold tailings, quartz sand, calcite and nepheline are crushed and screened. The cyanide in the gold tailings is removed by ion exchange, and then weighed to make a mixture. The weight parts of the raw materials are: 90 parts of gold tailings, 1 part of nepheline, 0.5 parts of calcite, and 8 parts of quartz sand. 2 parts of soda ash, 1 part of barium carbonate, 0.1 part of dicobalt trioxide, 2 parts of sodium nitrate, and 1 part of borax.

[0054] The above-mentioned glass raw materials were melted in a glass tank furnace with a temperature of 1350° C. for 3.5 hours. After the melting was completed, the molten glass was directly flowed into water to become glass pellets. Spread 50 kg of glass granules flat in a refractory mold with a size of 6000×9000 mm and carry out crystallization in a shuttle kiln fueled by liquefied petroleum gas at a crystallization temperature of 1050°C. Thereby, a black glass-ceramic product of 600×900×35 mm can be obtained.

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Abstract

The invention discloses a black micro-crystalline glass plate made of gold ore tailings, which is prepared from the following raw materials in part by mass: gold ore tailings 60-90, quartz sand 8-20, calcite 0.5-2, nepheline 1-2, sodium carbonate 2-5, borax 1-2, barium carbonate 1-8, sodium nitrate 2-6 and cobalt oxide 0.1-0.5. A manufacturing method comprises: crushing and screening the gold ore tailings, the quartz sand, the calcite and the nepheline; removing cyanides from the gold ore tailings by an iron exchange method; weighing the raw materials in proportion and preparing a mixed material; melting the mixed material at 1,250 to 1,350 DEG C to form vitreous humour; allowing molten vitreous humour directly to flow into water to be quenched by water into glass grains; flatly spreading the glass grains in a refractory mould for crystallization; and grinding and cutting an obtained black crystalline glass sample. Compared with the traditional black crystalline glass, the product has more higher quality, and has the advantages of high Mohs' hardness, high bending strength, high chemical stability and pure color.

Description

technical field [0001] The present invention relates to a glass-ceramic and a method for manufacturing the glass-ceramic. Background technique [0002] Glass-ceramic is a polycrystalline material obtained by controlling the crystallization of glass. At present, glass-ceramics has formed a special category of materials, with various varieties and different properties, and has a very wide range of uses. Glass-ceramic plate is one of many varieties of glass-ceramics. It is a new type of high-grade building decoration material with high strength, wear resistance, corrosion resistance, weathering resistance, non-absorbent, easy cleaning and maintenance, and no radioactive pollution. Features and uniform color tone, soft and crystal-clear luster, dense and flawless surface and other excellent appearance characteristics. Because the properties of the glass-ceramic plate are superior to natural stone in all aspects, it has been widely used in high-end decoration projects such as i...

Claims

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Application Information

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IPC IPC(8): C03C10/14C03B32/02
Inventor 谢继增张金青
Owner 君达环保科技(宝鸡)有限公司
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