Preparation method of copper red microcrystalline glass

A glass-ceramic, red technology, applied in the field of preparation of copper-red glass-ceramic, can solve the problems of easy oxidation, highly toxic, unsuitable for industrial production, etc., achieve bright colors, increase added value, and eliminate adverse effects.

Active Publication Date: 2012-03-14
GEM CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, because cuprous oxide is highly toxic, it is easy to oxidize in the air, and its price is more than twice that of copper oxide, so it is usually not suitable for industrial production.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0036] The invention provides a method for preparing copper-red glass-ceramics, comprising the following steps:

[0037] (1) Take waste glass, its main component is: SiO 2 : 70%, Al 2 o 3 : 1.2%, CaO: 7%, K 2 O: 0.6% and Na 2 O: 14%. The waste glass is selected, cleaned and crushed to produce glass powder.

[0038] (2) Take the discarded circuit board, containing Cu: 20%, Sn: 2%, Al: 3% and Zn: 1% (by weight fraction ratio). The waste circuit boards are crushed to fully dissociate metals and non-metals to obtain material particles with a size of 10-60 mesh. The material is then screened by flotation to remove non-metallic circuit board materials such as epoxy resin. Then burn in the air at a high temperature of 700°C to oxidize the material particles to obtain a metal oxide enriched body.

[0039] (3) Take waste glass, metal oxide enriched body, TiO 2 , limestone and aluminum hydroxide are mixed at a ratio of 100:3:1:20:20 by weight to obtain a mixed raw material.

[0...

Embodiment 2

[0043] The invention provides a method for preparing copper-red glass-ceramics, comprising the following steps:

[0044] (1) Take waste glass, its main component is: SiO 2 : 75%, Al 2 o 3 : 0.8%, CaO: 13%, K 2 O: 0.6% and Na 2 O: 10%. The waste glass is selected, cleaned and crushed to produce glass powder.

[0045] (2) Take waste circuit boards, containing Cu: 25%, Sn: 4%, Al: 2% and Zn: 2% (by weight fraction ratio). The waste circuit boards are crushed to fully dissociate metals and non-metals to obtain material particles with a size of 10-60 mesh. The material is then screened by flotation to remove non-metallic circuit board materials such as epoxy resin. Then burn in the air at a high temperature of 800°C to oxidize the material particles to obtain a metal oxide enriched body.

[0046] (3) Take waste glass, metal oxide enriched body, TiO 2 , limestone and aluminum oxide are mixed according to the weight ratio of 20:1:1:6:3 to prepare the mixed raw material.

[...

Embodiment 3

[0050] The invention provides a method for preparing copper-red glass-ceramics, comprising the following steps:

[0051] (1) Take waste glass, its main component is: SiO 2 : 80%, Al 2 o 3 : 1.0%, CaO: 8%, K 2 O: 0.4% and Na 2 O: 10%. The waste glass is selected, cleaned and crushed to produce glass powder.

[0052] (2) Take waste circuit boards, containing Cu: 30%, Al: 1% and Zn: 2% (by weight fraction ratio). The waste circuit boards are crushed to fully dissociate metals and non-metals to obtain material particles with a size of 10-60 mesh. The material is then screened by flotation to remove non-metallic circuit board materials such as epoxy resin. Then burn in the air at a high temperature of 850°C to oxidize the material particles to obtain a metal oxide enriched body.

[0053] (3) Take waste glass, metal oxide enriched body, Cr 2 o 3 , limestone, aluminum oxide and sodium oxide are mixed in a ratio of 100:10:4:15:10:5 by weight to obtain a mixed raw material. ...

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Abstract

The invention provides a preparation method of copper red microcrystalline glass. The preparation method comprises the following steps of 1, carefully screening waste and old glass, cleaning, and crushing to obtain waste and old glass powder, 2, pretreating waste circuit boards, and carrying high temperature oxidation to obtain a metal oxide concentrate, 3, mixing the waste and old glass powder and the metal oxide concentrate, adding a nucleating agent and auxiliary agents, mixing well, and carrying out ball milling to obtain a mixed raw material, and 4, melting the mixed raw material at a high temperature into molten glass liquid, carrying out molding after clarification and homogenization, and carrying out nucleation and crystallization through heat treatment after annealing to obtain the copper red microcrystalline glass. The preparation method reduces or eliminates adverse influences from waste and old glass and waste circuit boards on the environment, changes waste into valuables, produces copper red microcrystalline glass having an extremely high artistic value, and has large economic and social benefits.

Description

technical field [0001] The invention relates to the treatment of industrial waste, in particular to a method for preparing copper-red glass-ceramics. Background technique [0002] Due to different uses, waste glass usually contains oxides such as aluminum, calcium, sodium, and boron in addition to silicon dioxide, and it is difficult to purify. Therefore, the general mode of treatment is to make low-grade, low-value glass products. What's more, waste glass is directly stacked in the open air or landfilled, occupying a large amount of cultivated land, which not only seriously pollutes the environment, but also wastes precious resources. [0003] Glass-ceramics, also known as glass ceramics, is a crystallization heat treatment of glass under a certain temperature control, so that the original single glass phase forms a composite material with uniform distribution of microcrystalline phase and glass phase. Glass-ceramic is widely used in interior and exterior wall decorations...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C03C10/00C03C6/02
Inventor 黄旭江何爱萍
Owner GEM CO LTD
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