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Li2O-Al2O3-SiO2 series crystallization glass and manufacturing method thereof

A technology of crystallized glass, glass, applied in the field of glass manufacturing

Pending Publication Date: 2018-06-05
HUZHOU TA HSIANG GLASS PRODS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] However, the above-mentioned Li 2 O-Al 2 o 3 -SiO 2 When it is crystallized glass, it is often necessary to use a large amount of lithium-containing minerals such as spodumene and petalite, or lithium carbonate chemical raw materials. In recent years, due to the rapid development of electric vehicles, the demand for lithium batteries has increased rapidly, causing lithium battery manufacturers The rush to buy lithium carbonate. With the crazy price increase of lithium carbonate, the price of lithium-containing minerals such as spodumene and petalite has also doubled. In order to reduce costs, using lithium-containing waste as the main raw material for glass has become a future trend. How to use it Lithium-containing waste as the main raw material of glass has become a problem that must be solved in the future

Method used

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  • Li2O-Al2O3-SiO2 series crystallization glass and manufacturing method thereof

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0045] Hereinafter, the crystallizable glass and the method for producing the crystallized glass of the present invention will be described.

[0046] First, convert the weight percent to SiO 2 60.0~70.0wt%, Al 2 o 3 18.0~24.0wt%, Li 2 O2.0~5.0wt%, TiO 2 0.5~4.0wt%, ZrO 2 0.5~4.0wt%, P 2 o 5 0.3~2.0wt%, Na 2 O0~2.0wt%, K 2 O0~2.0wt%, MgO0.1~1.6wt%, ZnO0.5~2.0wt%, BaO0.1~1.6wt%, As 2 o 3 0~1.0wt%, Sb 2 o 3 0~1.0wt%, F0~1.0wt%, Fe 2 o 3 0~1.0wt%, B 2 o 3 0-1.0wt%, CaO0-1.0wt%, C0-1.0wt% glass raw materials are blended and stirred evenly. Lithium-containing waste is used as the main raw material.

[0047] As lithium-containing waste, the content of each component is SiO 2 55.0~75.0wt%, Al 2 o 3 15.0~25.0wt%, Li 2 O0.5~5.0wt%, TiO 2 0~4.0wt%, ZrO 2 0~4.0wt%, P 2 o 5 0~2.0wt%, Na 2 O0~2.0wt%, K 2 O0~2.0wt%, MgO0~2.0wt%, ZnO0~2.5wt%, BaO0~2.0wt%, As 2 o 3 0~1.0wt%, Sb 2 o 3 0~1.0wt%, F0~1.0wt%, Fe 2 o 3 0~1.0wt%, B 2 o 3 The composition of 0-1.0 wt%...

Embodiment 2

[0062] Mix the glass raw material into the composition of sample number 2 shown in Table 1 and place it in the crucible, melt the glass raw material at 1650°C and make a plate-shaped test piece of 100mm×100mm×5mm, after cooling, put the glass plate into heat treatment In the furnace, after holding the temperature at 200°C for 10 minutes, the temperature was raised to 1060°C at a rate of 1°C / min, and the furnace was cooled after holding the temperature at 1060°C for 20 minutes. As a result, β-spodumene solid solution (Li 2 O·Al 2 o 3 · nSiO2 2 n≧4) and become white crystallized glass.

Embodiment 3

[0064] Mix the glass raw material into the composition of sample number 3 shown in Table 1 and put it in the crucible, melt the glass raw material at 1650°C and make a plate-shaped test piece of 100mm×100mm×5mm, after cooling, put the glass plate into heat treatment In the furnace, after holding the temperature at 200°C for 10 minutes, the temperature was raised to 950°C at a rate of 1°C / min, and the furnace was cooled after holding the temperature at 950°C for 20 minutes. As a result, β-quartz solid solution (Li 2 O·Al 2 o 3 · nSiO2 2 n≧2) and become black transparent crystallized glass.

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Abstract

The invention discloses Li2O-Al2O3-SiO2 series crystallization glass and a manufacturing method thereof. The Li2O-Al2O3-SiO2 series crystallization glass is prepared from the following ingredients inpercentage by mass: 60.0 to 70.0 weigh percent of SiO2, 18.0 to 24.0 weigh percent of Al2O3, 2.0 to 5.0 weigh percent of Li2O, 0.5 to 4.0 weigh percent of TiO2, 0.5 to 4.0 weigh percent of ZrO2, 0.3 to 2.0 weigh percent of P2O5, 0 to 2.0 weigh percent of Na2O, 0 to 2.0 weigh percent of K2O, 0.1 to 1.6 weigh percent of MgO, 0.5 to 2.0 weigh percent of ZnO, 0.1 to 1.6 weigh percent of BaO, 0 to 1.0weigh percent of As2O3, 0 to 1.0 weigh percent of Sb2O3, 0 to 1.0 weigh percent of F, 0 to 1.0 weigh percent of Fe2O3, 0 to 1.0 weigh percent of B2O3, 0 to 1.0 weigh percent of CaO and 0 to 1.0 weightpercent of C. The glass provided by the invention uses Li-containing waste as major raw materials of the glass; the crystallization glass can realize the mass production; waste materials can be changed into valuable materials; the manufacturing cost is low; the crystallization glass is applicable to the materials of panels for electromagnetic conditioning devices, microwave oven ceiling boards, fireproof window glass, front face window glass of petroleum stoves and wood stoves and the like.

Description

technical field [0001] The present invention relates to a kind of Li 2 O-Al 2 o 3 -SiO 2 The invention relates to crystallized glass and a manufacturing method thereof, belonging to the field of glass manufacturing. Background technique [0002] In recent years, Li 2 O-Al 2 o 3 -SiO 2 Crystallized glass is widely used in substrates for high-tech products such as color filters and substrates for image sensors, refractory boards for firing electronic parts, panels for electromagnetic conditioners, optical parts, microwave oven shed boards, window glass for fire protection, petroleum Materials such as front window panes for stoves and wood stoves. [0003] About the above Li 2 O-Al 2 o 3 -SiO 2 It is a crystallized glass, for example, in each of the publications such as Patent Document 1 to Patent Document 7, it is disclosed that Li 2 O-Al 2 o 3 -SiO 2 Department of crystallized glass. Due to the above Li 2 O-Al 2 o 3 -SiO 2 The crystallized glass has a low...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C03C10/10C03C10/14C03C6/00C03B32/02
CPCC03B32/02C03C1/002C03C10/0009C03C10/0027
Inventor 许国铨
Owner HUZHOU TA HSIANG GLASS PRODS
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