Method for preparing porose glass composite material using iron ore tailings

A technology of iron ore tailings and porous glass, applied in the field of mineral processing, can solve the problems of low utilization rate, environmental pollution, large emissions, etc., and achieve the effects of low production cost, uniform distribution of pores, and high compressive strength

Inactive Publication Date: 2006-10-25
NORTHEASTERN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

As a kind of waste in the metallurgical industry, iron tailings have caused great

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0018] Example 1

[0019] A two-step method is used to prepare porous glass composite materials. The first step: prepare the basic glass powder. The main chemical composition of the iron tailings used is SiO in weight percentage 2 65%, Fe 2 O 3 22%, the rest CaO, Al 2 O 3 , MgO, MnO 2 And TiO 2 13%; bauxite (Al 2 O 3 The content is 82% by weight), calcium carbonate (analytical purity) and waste glass (SiO 2 The content is 69% by weight percentage, Na 2 The O content is 11% by weight.) Adjust the ingredients.

[0020] The process steps are as follows:

[0021] (1) Crushing: After crushing the granular iron tailings with a sample maker, the iron tailings powder is obtained;

[0022] (2) Ball milling: finely grind the crushed iron tailings powder until the raw material particle size reaches 200 mesh (74μm) or less;

[0023] (3) Ingredients: Ingredients are prepared according to the ingredients and proportions of the required preparation materials; in weight percentage, the ingredient...

Example Embodiment

[0032] Example 2

[0033] A two-step method is used to prepare porous glass composite materials. The first step: prepare the basic glass powder. The main chemical composition of the iron tailings used is SiO in weight percentage 2 70%, Fe 2 O 3 25%, the rest CaO, Al 2 O 3 , MgO, MnO 2 And TiO 2 5%; use bauxite (Al 2 O 3 The content is 85% by weight), calcium carbonate (analytical purity) and waste glass (SiO 2 The content is 71% by weight percentage, Na 2 The content of O is 15% by weight) to adjust the composition.

[0034] The process steps are as follows:

[0035] (1) Crushing: After crushing the granular iron tailings with a sample maker, the iron tailings powder is obtained;

[0036] (2) Ball milling: finely grind the crushed iron tailings powder until the raw material particle size reaches 200 mesh (74μm) or less;

[0037] (3) Ingredients: ingredients according to the ingredients and proportions of the required preparation materials; based on weight percentages, 65% of iron t...

Example Embodiment

[0046] Example 3

[0047] A two-step method is used to prepare porous glass composite materials. The first step: prepare the basic glass powder. The main chemical composition of the iron tailings used is SiO in weight percentage 2 61%, Fe 2 O 3 20%, the rest CaO, Al 2 O 3 , MgO, MnO 2 And TiO 2 19%; using bauxite (Al 2 O 3 The content is 76% by weight), calcium carbonate (analytical purity) and waste glass (SiO 2 The content is 67% by weight percentage, Na 2 The O content is 9% by weight.) Adjust the ingredients.

[0048] The process steps are as follows:

[0049] (1) Crushing: After crushing the granular iron tailings with a sample maker, the iron tailings powder is obtained;

[0050] (2) Ball milling: finely grind the crushed iron tailings powder until the raw material particle size reaches 200 mesh (74μm) or less;

[0051] (3) Ingredients: Ingredients are made according to the required ingredients and proportions of the materials to be prepared; in weight percentage, the ingred...

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Abstract

The invention is a method for preparing multiporous glass composite with ironstone gangue, adopting two steps: 1. adopting iron gangue, bauxite, calcium carbonate and waste glass as raw materials to prepare basic glass powder, crushing and finely grinding the iron gangue, and batching the iron gangue 48-65wt%, bauxite 5-9wt%, calcium carbonate 10-20wt%, and waste glass 15-30wt%; mixing them uniformly, melting and baking, water- quenching and grinding and finally obtaining the glass powder; 2. preparing multiporous glass ceramic materials, and adding in calcium carbonate in 1-5wt% of the basic glass, sodium phosphate in 6-10wt% of the basic glass, anhydrous sodium carbonate in 1-3wt% of the basic glass and borax in 1-6wt% of the basic glass, grinding and mixing them, and moulding and obtaining raw blanks, sintering the raw blanks at high temperature and cooling to normal temperature and finally obtaining the products. And the products have bulk densities of 1.5-2.8 g/cm3, normal- temperature tensile strength of 32-60 MPa and are good heat- insulating materials.

Description

technical field [0001] The invention belongs to the technical field of mineral processing, and in particular relates to a method for preparing a porous glass composite material by using iron ore tailings. Background technique [0002] Porous glass and glass ceramics are new material systems developed in the 20th century. Because of its all-inorganic glass composition and independent closed pore structure, it endows it with many excellent characteristics. The use of cheap industrial solid waste, such as waste glass, slag, fly ash, etc., as raw materials to prepare low-cost, high-quality porous glass materials has been widely valued by people. [0003] At present, there have been reports in the literature on the preparation of porous glass materials from industrial solid waste such as waste glass and coal gangue, but so far, there has been no report on the preparation of porous glass composite materials from iron ore tailings at home and abroad. With the rapid development of...

Claims

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Application Information

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IPC IPC(8): C03C6/10C03B32/02C03C11/00C03C12/00
CPCC03C1/002
Inventor 薛向欣张淑会段培宁
Owner NORTHEASTERN UNIV
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