Waste residue microcrystal glass and its preparation method

A technology of glass-ceramics and waste glass, which is applied in the field of preparing glass-ceramics, can solve the problems of insufficient utilization of resources, large discharge of waste glass, occupation of land resources, etc., and achieve high utilization rate, resource saving, and utilization of various types many effects

Inactive Publication Date: 2006-11-29
WUHAN UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Except for a small part as paving materials and low-grade cement raw materials, most of them are not used, which not only takes up a lot of land resources, but also causes environmental pollution
In addition, the discharge of tantalum-niobium tailings and waste glass is also large
resources are underutilized

Method used

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  • Waste residue microcrystal glass and its preparation method

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0044] like figure 1 Shown, the main chemical composition of yellow phosphorus slag is (percentage by weight): P 2 o 5 : 2.40%, SiO 2 : 41.72%, CaO: 51.95%; the main chemical composition of tantalum and niobium tailings is (weight percent): SiO 2 : 75.74%, Al 2 o 3 : 14.91%, Na 2 O: 4.30%, K 2 O: 1.87%, CaO: 1.23%; The chemical composition of waste glass is (percentage by weight): SiO 2 : 73.00%, Al 2 o 3 : 1.00%, Na 2 O: 13.00%, K 2 O: 0.50%, CaO: 12.50%. According to the following proportions (percentage by weight): yellow phosphorus slag: 29.13, tantalum and niobium tailings: 26.05, waste glass: 13.82, quartz sand: 26.56, zinc oxide: 1.94, barium carbonate: 2.50.

[0045]Yellow phosphorus slag, tantalum-niobium tailings and waste glass are pre-homogenized, crushed and screened to ensure uniform composition of raw materials. Various raw materials are weighed and then mixed to prepare a glass batch. The batch is melted and clarified at 1340±10°C, and the molten ...

Embodiment 2

[0047] The main chemical composition of yellow phosphorus slag is (percentage by weight): P 2 o 5 : 2.18%, SiO 2 : 37.95%, CaO: 46.09%; the main chemical composition of tantalum and niobium tailings is (weight percent): SiO 2 : 71.60%, Al 2 o 3 : 16.45%, Na 2 O: 6.60%, K 2 O: 2.20%; Waste glass chemical composition is (percentage by weight): SiO 2 : 73.00%, Al 2 o 3 : 1.00%, Na 2 O: 13.00%, K 2 O: 0.50%, CaO: 12.50%. According to the following proportions (percentage by weight): yellow phosphorus slag: 37.26, tantalum and niobium tailings: 11.18, waste glass: 15.84, quartz sand: 31.45, zinc oxide: 1.86, barium carbonate: 2.41.

[0048] Yellow phosphorus slag, tantalum-niobium tailings and waste glass are pre-homogenized, crushed and screened to ensure uniform composition of raw materials. Various raw materials are weighed and then mixed to prepare a glass batch. The batch material is melted and clarified at 1370±10°C, and the melted glass liquid is water-quenched ...

Embodiment 3

[0050] The main chemical composition of yellow phosphorus slag is (percentage by weight): P 2 o 5 : 2.18%, SiO 2 : 37.95%, CaO: 46.09%; the main chemical composition of tantalum and niobium tailings is (weight percent): SiO 2 : 75.74%, Al 2 o 3 : 14.91%, Na 2 O: 4.3%, K 2 O: 1.87%, CaO: 1.23%; The chemical composition of waste glass is (percentage by weight): SiO 2 : 73.00%, Al 2 o 3 : 1.00%, Na 2 O: 13.00%, K 2 O: 0.50%, CaO: 12.50%. According to the following proportions (percentage by weight): yellow phosphorus slag: 52.86, tantalum niobium tailings: 28.71, waste glass: 10.44, quartz sand: 4.00, zinc oxide: 1.74, barium carbonate: 2.25.

[0051] Yellow phosphorus slag, tantalum-niobium tailings and waste glass are pre-homogenized, crushed and screened to ensure uniform composition of raw materials. Various raw materials are weighed and then mixed to prepare a glass batch. The batch material is melted and clarified at 1370±10°C, and the melted glass liquid is wa...

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Abstract

A microcrystalline glass with low cost and low smelting temp is proportionally prepared from the industrial slag (yellow phosphorus slag), Ta-Nb ore tailings, rejected glass and auxiliary. It contains SiO2 (55-71 Wt%), Al2O3 (3-10), CaO (16-30), ZnO (2-4), BaO (1-4), Na2O+K2O+Li2O (1-10), P2O5 (0-3) and B2O3 (0-3). Its preparing process is also disclosed.

Description

technical field [0001] The invention relates to the comprehensive utilization of industrial wastes to prepare glass-ceramics, in particular to a waste slag glass-ceramics produced by using yellow phosphorus slag, tantalum-niobium tailings and waste glass as main raw materials. Background technique [0002] Waste slag glass-ceramics is a silicate glass-ceramic made from industrial slag or slag. my country attaches great importance to the development and research of tailings glass-ceramics. One of the strategic priorities of the "Special Action for Comprehensive Utilization of Resources Science and Technology". This glass-ceramic can be used not only to make industrial products, such as water pump housings, inner walls or lining materials of chemical reaction tanks, but also as building decoration materials. Its raw material is industrial waste residue, which has a wide range of sources and low cost, so it has been widely valued by people and a lot of research has been carried...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C03C6/02C03C6/10C03C10/00C03C3/097C03B32/02
CPCC03C10/00C03C3/087C03C3/093C03C3/097
Inventor 程金树汤李缨李宏何峰全健陆平
Owner WUHAN UNIV OF TECH
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