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Method for preparing opaque glass decorative plate by using yellow phosphorus slag

An opaque glass and yellow phosphorus slag technology, applied in the field of building decoration materials, can solve the problems of adverse effects of the atmospheric environment, low utilization of phosphorus slag, low production efficiency, etc., and achieve the effect of alleviating a large number of wastes

Inactive Publication Date: 2017-12-08
WUHAN UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This technology has some shortcomings, such as the casting method used in glass forming, which has low production efficiency and is not conducive to large-scale preparation of glass-ceramic materials, resulting in low utilization of phosphate slag
In addition, CaF is additionally used in its base glass component 2 Raw material, this raw material will release F at high temperature 2 , has a very adverse impact on the atmospheric environment, and is not an environmentally friendly glass formula

Method used

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Examples

Experimental program
Comparison scheme
Effect test

example 1

[0027] The method of preparing opacified glass by using yellow phosphorus slag is as follows:

[0028] A certain amount of auxiliary materials are used: quartz sand, high-phosphorus iron ore tailings after magnetic separation, soda ash, aluminum ashstone, boric acid, titanium dioxide, etc. are added to the cold yellow phosphorus slag. The applicable chemical composition range of yellow phosphorus slag is: SiO 2 (34wt%-43wt%), Al 2 o 3 (2wt%-8wt%), CaO (45wt%-52wt%), MgO (1wt%-5wt%), P 2 o 5 (1.2wt%-3.5wt%), Fe 2 o 3 (0.2wt%-1wt%), F (1wt%-3wt%); the specific addition amount of these auxiliary materials needs to refer to the composition of yellow phosphorus slag in actual production. The amount of various raw materials used is 50 parts of yellow phosphorus slag, 20 parts of quartz sand, 5 parts of high phosphorus iron ore tailings after magnetic separation, 8 parts of soda ash, 4 parts of alumina limestone, 5 parts of boric acid, and 1 part of titanium dioxide.

[0029] ...

example 2

[0033] The method of preparing opacified glass by using yellow phosphorus slag is as follows:

[0034] A certain amount of auxiliary materials are used: quartz sand, high-phosphorus iron ore tailings after magnetic separation, soda ash, aluminum ashstone, boric acid, titanium dioxide, etc. are added to the cold yellow phosphorus slag. The applicable chemical composition range of yellow phosphorus slag is: SiO 2 (34wt%-43wt%), Al 2 o 3 (2wt%-8wt%), CaO (45wt%-52wt%), MgO (1wt%-5wt%), P 2 o 5 (1.2wt%-3.5wt%), Fe 2 o 3 (0.2wt%-1wt%), F (1wt%-3wt%); the specific addition amount of these auxiliary materials needs to refer to the composition of yellow phosphorus slag in actual production. The amount of various raw materials used is 52.5 parts of yellow phosphorus slag, 17 parts of quartz sand, 7.5 parts of high phosphorus iron ore tailings after magnetic separation, 10 parts of soda ash, 8 parts of alumina limestone, 4 parts of boric acid, and 0.5 parts of titanium dioxide.

...

example 3

[0039] The method of preparing opacified glass by using yellow phosphorus slag is as follows:

[0040] A certain amount of auxiliary materials are used: quartz sand, high-phosphorus iron ore tailings after magnetic separation, soda ash, aluminum ashstone, boric acid, titanium dioxide, etc. are added to the cold yellow phosphorus slag. The applicable chemical composition range of yellow phosphorus slag is: SiO 2 (34wt%-43wt%), Al 2 o 3 (2wt%-8wt%), CaO (45wt%-52wt%), MgO (1wt%-5wt%), P 2 o 5 (1.2wt%-3.5wt%), Fe 2 o 3 (0.2wt%-1wt%), F (1wt%-3wt%); the specific addition amount of these auxiliary materials needs to refer to the composition of yellow phosphorus slag in actual production. The amount of various raw materials used is 55 parts of yellow phosphorus slag, 15 parts of quartz sand, 10 parts of high phosphorus iron ore tailings after magnetic separation, 10 parts of soda ash, 5 parts of alumina limestone, 2.8 parts of boric acid, and 0.2 parts of titanium dioxide.

...

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Abstract

The invention provides a method for producing an opal glass decorative plate by using yellow phosphorus slag as a main raw material. The method comprises the following steps: granular yellow phosphorus slag and an auxiliary material are mixed, and a mixture is placed in a glass fusing kiln; the mixture is clarified and homogenized, then is introduced into a glass pre-phase-splitting pool; a constant temperature section at the temperature of 950-980 DEG C is arranged in a material feeding tunnel, a microwave generator is arranged, an output power of the microwave generator is 10kW -20kW; a glass melt through full phase-splitting is introduced into a calender at an end part of the material feeding tunnel for being molded to obtain the shaped opal glass plates; annealing treatment is carried out; and then the opal glass plates are cut to obtain the opal glass decorative plate. According to the invention, P2O5 is taken as an opacifier to produce the opal glass, P2O5 and F components in the yellow phosphorus slag and high-phosphorus iron ore after magnetic separation are fully used as the opacifier, addition of the chemical opacifiers is reduced, and cost is reduced. Besides the F component in the yellow phosphorus slag, no other fluorine-containing raw material is added.

Description

technical field [0001] The invention belongs to the field of building decoration materials, and in particular relates to a method for preparing an opaque glass decorative plate by using yellow phosphorus slag as a main raw material slag. Background technique [0002] Yellow phosphorus slag is the product of yellow phosphorus (P 4 ) The industrial waste slag (melting slag) discharged during the process, in a sealed electric arc furnace, coke is used as a reducing agent, and silica is added to form a calcium silicate eutectic. Granular product formed after quenching. At present, the world's yellow phosphorus production capacity exceeds 1600kt / a; there are more than 150 yellow phosphorus production enterprises in my country, more than 300 phosphorus electric furnaces, and the yellow phosphorus production capacity exceeds 1300kt / a, accounting for about 80% of the global yellow phosphorus production capacity. ranks first in the world. The amount of phosphorus slag is 10t of sla...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C03C6/10C03C1/04C03C3/118C03C4/00C03B7/02C03B25/00
CPCC03B7/02C03B25/00C03C1/002C03C1/04C03C3/118C03C4/005
Inventor 何峰谢峻林叶楚桥梅书霞金明芳
Owner WUHAN UNIV OF TECH
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