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Method for preparing arsenic-containing cured glass by arsenic-containing waste slag

A technology of waste slag and glass, which is applied in the field of preparing arsenic-containing solidified glass to achieve the effects of high hardness, energy saving, and uniform color

Inactive Publication Date: 2017-11-03
CENT SOUTH UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] So far, there is no report on the preparation of arsenic-containing solidified glass with high hardness and practicality by using arsenic slag, copper smelting waste slag, silicon-based materials and boric acid under normal pressure.

Method used

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  • Method for preparing arsenic-containing cured glass by arsenic-containing waste slag
  • Method for preparing arsenic-containing cured glass by arsenic-containing waste slag
  • Method for preparing arsenic-containing cured glass by arsenic-containing waste slag

Examples

Experimental program
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Effect test

Embodiment 1

[0024] Copper smelting slag, arsenic-containing waste slag, silicon-based materials and boric acid are used as raw materials, and the compositions of arsenic-containing waste slag, copper smelting slag and silicon-based materials are shown in the table below. Copper smelting slag, arsenic-containing waste slag, silicon-based materials and boric acid were ball-milled for 1 hour according to the mass ratio of 40:20:31:9, passed through 150 mesh and placed in a ceramic crucible, and the ceramic crucible was placed in a muffle furnace. Fire in an air atmosphere, keep the heating rate at 10°C / min to 1100°C, and keep it warm for 1h. After the reaction is over, the ceramic crucible is taken out and cooled in air to obtain arsenic-containing solidified glass. X-ray diffraction analysis was performed on the synthesized glass material, and the results are shown in the figure; at the same time, the leaching characteristics and compressive strength were tested using the American TCLP meth...

Embodiment 2

[0034] Copper smelting slag, arsenic-containing waste slag, silicon-based materials and boric acid are used as raw materials, and the compositions of arsenic-containing waste slag, copper smelting slag and silicon-based materials are shown in the table below. Copper smelting slag, arsenic-containing waste slag, silicon-based materials, and boric acid were ball-milled for 1 hour according to the mass ratio of 31:27:33:9, and the raw materials over 200 mesh were placed in a ceramic crucible, and the ceramic crucible was placed in a muffle furnace Fire in an air atmosphere, keep the heating rate from 10°C / min to 1150°C, and keep it warm for 1.5h. After the reaction is over, the ceramic crucible is taken out and placed in water for cooling to obtain arsenic-containing solidified glass. Meanwhile, US TCLP method and GB_T17671-1999 cement mortar strength testing method were used to test the leaching characteristics and compressive strength, and the results are shown in the table bel...

Embodiment 3

[0044] Copper smelting slag, arsenic-containing waste slag, silicon-based materials and boric acid are used as raw materials, and the compositions of arsenic-containing waste slag, copper smelting slag and silicon-based materials are shown in the table below. Copper smelting slag, arsenic-containing waste slag, silicon-based materials, and boric acid are ball-milled for 1 hour according to the mass ratio of 44:18:28:10, and the raw materials over 300 mesh are placed in a corundum crucible, and the corundum crucible is placed in a muffle furnace Fire in an air atmosphere, keep the heating rate from 10°C / min to 1100°C, and keep it warm for 1h. After the reaction, the ceramic crucible was taken out and cooled in liquid nitrogen to obtain arsenic-containing solidified glass. Meanwhile, US TCLP method and GB_T17671-1999 cement mortar strength testing method were used to test the leaching characteristics and compressive strength, and the results are shown in the table below.

[004...

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Abstract

The invention discloses a method for preparing arsenic-containing cured glass by arsenic-containing waste slag. Arsenic-containing waste slag, copper melting waste slag, a silicon-based material and boracic acid are subjected to mixed ball milling according to a certain mass ratio; sieving is performed; the mixed material is put into a fire-resistant mold; solid-phase reaction is performed under a certain temperature condition; then, the materials are taken out to be cooled in the high-temperature state; the cured glass with uniform color and luster, high hardness and smooth surface is obtained; the obtained cured glass meets the requirements of the general inorganic glass materials for industry. The method has the advantages that the waste and abandoned copper slag and dangerous waste of arsenic-containing waste slag in industry are used to be converted into curing glass with the industrial utilization value through directional regulation and control; the quantity reduction and secondary resource utilization of the copper slag can be realized; the problems of copper slag tail end open path and environment pollution are solved; the harmless disposition goal of the arsenic-containing waste slag is achieved; waste materials are changed into valuable materials; a green and sustainable path is opened up for the copper slag and arsenic pollution treatment in copper melting industry.

Description

technical field [0001] The invention belongs to the intersection field of inorganic non-metallic materials and environmental engineering, and relates to a method for preparing arsenic-containing solidified glass by utilizing arsenic-containing waste residue. Background technique [0002] A large amount of arsenic-containing waste residues are produced in the processes of mining, smelting and chemical industry. The annual arsenic discharge of only the color industry in my country exceeds 40,000 tons, and the arsenic slag produced exceeds 3 million tons per year. Due to the limited market for arsenic, enterprises lack economic motivation in the process of resource recycling. Most of the arsenic-containing waste generated at present is disposed of in the form of stacking or simple solidification landfill, which has great environmental risks and has also caused arsenic resources. waste. [0003] At present, solidification / stabilization technology is mostly used for the treatme...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C03C6/10C03C3/064C03B19/09
CPCC03C1/002C03B19/09C03C3/064
Inventor 梁彦杰赵宗文柴立元王忠兵彭兵闵小波刘恢王大伟陈玉洁朱顺雷杰
Owner CENT SOUTH UNIV
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