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Red mud type partition board material, preparation method thereof and red mud partition board

A technology for partition boards and red mud, which is applied in the production of ceramic materials, clay products, ceramic products, etc., and can solve the problems of restricting the application of ceramic partition boards

Inactive Publication Date: 2017-06-09
刘子元
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, due to the limitation of raw material sources of ceramic products, the application of ceramic partition boards is greatly limited.
At present, there is no relevant report about using red mud as raw material to prepare ceramic partition boards in the prior art

Method used

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  • Red mud type partition board material, preparation method thereof and red mud partition board
  • Red mud type partition board material, preparation method thereof and red mud partition board
  • Red mud type partition board material, preparation method thereof and red mud partition board

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preparation example Construction

[0036] The present invention also provides a method for preparing the red mud partition wall material described in the above technical solution, comprising the following steps:

[0037] Pulverizing the mixture containing red mud, feldspar, silicon carbide, zeolite and manganese tailings to obtain fine powder of the mixture;

[0038] The fine powder of the mixture is sintered to obtain the red mud type partition board material.

[0039] The invention grinds the mixture containing red mud, feldspar, silicon carbide, zeolite and manganese tailings to obtain the mixture fine powder. In the present invention, the crushing method is preferably ball milling. In the present invention, the grinding balls for ball milling are preferably medium aluminum balls. In the present invention, the size of the medium aluminum ball is preferably and said and The number ratio of aluminum balls is preferably (15-25):(45-55):(25-35), more preferably (17-23):(47-53):(27-335), most preferab...

Embodiment 1

[0045] Mix 40 parts of red mud, 20 parts of feldspar, 2 parts of silicon carbide, 35 parts of zeolite and 3 parts of manganese tailings and then perform ball milling, and stop ball milling until the mixture fine powder passes through a 200-mesh sieve with a sieve residue of 0.2%. , to obtain a fine powder of the mixture.

[0046] Ball milling parameters: medium aluminum balls are used as the ball milling medium, and the medium aluminum balls are distributed according to the size ratio, and the quantity ratio is 20:50:30; the mass ratio of material, ball and water is 1:1.8:0.8, and the ball milling time is 9 hours.

[0047] The obtained mixture fine powder was sintered at 1200° C. for 2 hours to obtain a bulky red mud type partition wall board material.

[0048] After testing, the density of the red mud partition board material is 430-450Kg / m 3 , the average bubble diameter is 2mm, the maximum bubble diameter is 4.2mm, and the minimum bubble diameter is 1mm.

[0049] The re...

Embodiment 2

[0051] Mix 50 parts of red mud, 15 parts of feldspar, 2.2 parts of silicon carbide, 28 parts of zeolite and 5 parts of manganese tailings, then ball mill and pulverize, and stop ball milling until the mixture fine powder passes through a 200-mesh sieve with a sieve residue of 0.2%. , to obtain a fine powder of the mixture.

[0052] Ball milling parameters: medium aluminum balls are used as the ball milling medium, and the medium aluminum balls are distributed according to the size ratio, and the quantity ratio is 20:50:30; the mass ratio of material, ball and water is 1:1.8:0.8, and the ball milling time is 9 hours.

[0053] The obtained mixture fine powder was sintered at 1180° C. for 2.2 hours to obtain a red mud-based partition wall board material.

[0054] After testing, the density of the red mud partition board material is 430-450Kg / m 3 , the average bubble diameter is 2mm, the maximum bubble diameter is 4.2mm, and the minimum bubble diameter is 1mm.

[0055] The red...

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Abstract

The invention provides a red mud type partition board material which comprises 40-75 parts of red mud, 10-25 parts of feldspar, 1.5-2.5 parts of silicon carbide, 10-40 parts of zeolite and 3-15 parts of manganese tailings. By the preparation method, the red mud type partition board material can be successfully prepared by taking the red mud as a main raw material and can be prepared to be a partition board. The red mud type partition board material contains a hole-closed bubble structure, density of the material is 430-450Kg / m3, average diameter of bubbles is 2mm, maximum bubble diameter is 4.2mm, and minimum bubble diameter is 1mm. The red mud partition board has excellent mechanical performance, compressive strength is 9.8MPa, bending strength is 2.5MPa, elasticity modulus is 3783MPa, and heat conducting coefficient is 0.125W / m.k.

Description

technical field [0001] The invention relates to the technical field of partition board materials, in particular to a red mud partition board material, a preparation method thereof and a red mud partition board. Background technique [0002] Red mud is a red muddy strong alkaline solid waste that remains after the aluminum industry extracts alumina from bauxite. The main chemical composition of red mud is Al 2 o 3 , SiO 2 , CaO and Na 2 O, the main mineral composition is tricalcium silicate, sodalite, hydrofossil, hematite, perovskite and rhodonite. Due to differences in bauxite ore grades, production methods, and technical levels, every ton of alumina produced will produce 0.8-1.5 tons of red mud, and my country's annual red mud discharge is 45-50 million tons. At present, the utilization rate of red mud in my country is only 4%, and by 2015, the accumulated stock of red mud will reach 350 million tons. A large amount of red mud stockpiling not only occupies land, wast...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B38/00C04B33/132
CPCC04B33/132C04B33/1322C04B38/00C04B2235/3463C04B2235/3826C04B2235/96C04B2235/9607Y02P40/60
Inventor 刘子元
Owner 刘子元