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Method for producing homogenous refractory raw material by utilizing medium or low grade bauxite ore

A technology of bauxite ore and refractory raw materials, which is applied in the field of refractory materials to achieve the effect of maximizing benefits

Active Publication Date: 2013-08-07
YANGQUAN JINYU TONGDA HIGH TEMPERATURE MATERIALS +1
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  • Summary
  • Abstract
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  • Claims
  • Application Information

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Problems solved by technology

[0005] Yet above-mentioned invention still just utilizes high bauxite, and can not adopt middle and low grade bauxite to produce bauxite homogenate

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] Using bauxite ore with an aluminum content of 65% as raw material, bauxite homogeneous materials of 3 different grades are produced through the following process.

[0028] 1. Crushing process: Crushing and homogenizing the bauxite raw meal with an aluminum content of 65%, the crushing particle size is less than 15mm.

[0029] 2. Wet grinding process: The crushed raw material is transported to the overflow ball mill through the belt conveyor, and water is added to make the grinding concentration 65%, and the grinding fineness is 325 mesh.

[0030] 3. Flotation process: Pump the pulp with a fineness of 325 mesh into the flotation tank, add water to make the concentration 32%, add sodium carbonate as a pH value regulator, and adjust the pH value of the pulp to 8.9; add sodium hexametaphosphate to disperse Add starch as an inhibitor and stir for 4 minutes; add sodium oleate as a collector and stir for 4 minutes; add GF oil as a foaming agent and stir for 2 minutes; scrape a...

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Abstract

The invention relates to a method for producing a homogenous refractory raw material by utilizing medium or low grade bauxite ore, belonging to the technical field of refractory materials. The method comprises the following process steps of: crushing and homogenizing the medium or low grade bauxite ore, and grinding the bauxite ore by a wet method into the power of 200 to 400 meshes; sorting the medium or low grade bauxite ore into different grades of products through floatation and sorting; performing product formation through filter pressing dehydration and vacuum mud extrusion; and performing product firing by drying and sintering. The method has the advantages that the alumina homogenous refractory raw material can be produced by the medium or low grade bauxite ore, so that ore resources are utilized completely and the benefit is maximized.

Description

technical field [0001] The invention belongs to the technical field of refractory materials, and in particular provides a method for producing homogeneous refractory raw materials by using middle and low-grade bauxite ore. The prepared homogeneous refractory raw materials can be homogeneous refractory raw materials of different grades. Background technique [0002] my country's bauxite production of refractory materials began in the 1950s. After decades of disorderly mining and improper utilization, my country's refractory resources are seriously wasted, and the contradiction between supply and demand of refractory mineral resources has become more prominent. [0003] At present, bauxite homogeneous material is mainly made of bauxite ore as the main raw material, and it is a refractory material produced by homogenization, molding, calcination and other processes, which has the characteristics of uniform and stable structure, performance and quality. The level of raw ore grad...

Claims

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Application Information

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IPC IPC(8): C04B35/66
Inventor 王亚利王林俊安建成张彦平
Owner YANGQUAN JINYU TONGDA HIGH TEMPERATURE MATERIALS
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