Method for preparing porous ceramic material from vanadium-titanium magnetite tailings

A technology of vanadium-titanium magnetite and porous ceramics, which is applied in the production of ceramic materials, ceramic products, clay products, etc., can solve the problems that it is difficult to increase the industrial added value of vanadium-titanium magnetite tailings, and achieve the purpose of increasing industrial added value, The effect of high refining efficiency and uniform powder distribution

Active Publication Date: 2019-07-09
SHAANXI SCI TECH UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] The present invention aims at the present situation in the field of research and development of the problem that it is difficult to increase the industrial

Method used

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  • Method for preparing porous ceramic material from vanadium-titanium magnetite tailings
  • Method for preparing porous ceramic material from vanadium-titanium magnetite tailings

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0018] (1) The vanadium-titanium magnetite tailings are subjected to multi-acid leaching treatment, using a 3.3mol / L mixed solution of hydrochloric acid, nitric acid, and tungstic acid. The mixed molar percentage of the three acids is 45:22:33, and then mixed with alumina Powder, calcium carbonate powder and glass powder are put into the reflow type wheel blower device according to the mass percentage of 72:18:4:6 for refinement, the spindle speed is 110 rpm, and the wind speed is 100 m / s;

[0019] (2) Place the refined mixed powder in a slow-speed eccentric stirring device and add water to make a slurry at a speed of 140 rpm, then use filter cotton to separate water for water displacement treatment, and finally foam and form in a high-temperature blast heat collection device, The processing temperature is 1250°C, and the wind speed is 150 m / s, and finally a porous ceramic material is obtained.

Embodiment 2

[0021] (1) The vanadium-titanium magnetite tailings are subjected to multi-acid leaching treatment, using a 3.8mol / L mixed solution of hydrochloric acid, nitric acid, and tungstic acid, and the mixed molar percentage of the three acids is 47:23:30, and then mixed with alumina Powder, calcium carbonate powder and glass powder are put into the reflow type wheel mill blower device according to the mass percentage of 70:19.6:4.4:6 for refinement, the spindle speed is 120 rpm, and the wind speed is 80 m / s;

[0022] (2) Put the refined mixed powder in a slow-speed eccentric stirring device and add water to make slurry at a speed of 90 rpm, then use filter cotton to divide water for water displacement treatment, and finally foam and form in a high-temperature blast heat collection device, The processing temperature is 1250°C, and the wind speed is 120 m / s, and finally a porous ceramic material is obtained.

Embodiment 3

[0024] (1) The vanadium-titanium-magnetite tailings are subjected to the multi-acid leaching method, using a 5.2mol / L mixed solution of hydrochloric acid, nitric acid, and tungstic acid. The mixed molar percentage of the three acids is 43:24.6:32.4, and then mixed with alumina Powder, calcium carbonate powder and glass powder are put into the reflow type wheel blower device according to the mass percentage of 74:16.8:3.7:5.5 for refinement, the spindle speed is 130 rpm, and the wind speed is 110 m / s;

[0025] (2) Place the refined mixed powder in a slow-speed eccentric stirring device and add water to make a slurry at a speed of 140 rpm, then use filter cotton to separate water for water displacement treatment, and finally foam and form in a high-temperature blast heat collection device, The processing temperature is 1150°C, and the wind speed is 140 m / s, and finally a porous ceramic material is obtained.

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Abstract

The invention discloses a method for preparing a porous ceramic material from vanadium-titanium magnetite tailings. The method comprises the following steps: firstly, treating the vanadium-titanium magnetite tailings by a polyacid leaching method, placing the treated vanadium-titanium magnetite tailings, aluminum oxide powder, calcium carbonate powder and glass powder into a backflow-type wheel-milling blowing device according to a certain ratio for refining, then putting the refined mixture into a slow-speed eccentric stirring device, adding water for pulping, carrying out water displacementtreatment, and finally carrying out foaming formation in a high-temperature blast heat-collection device to finally obtain the porous ceramic material. The method has the advantages that the componentcontrol precision is high, process stability and repeatability are relatively high, and high industrial additional values of the vanadium-titanium magnetite tailings can be realized.

Description

technical field [0001] The invention relates to the technical field of green ceramic material preparation, in particular to a method for preparing porous ceramic material from vanadium-titanium magnetite tailings. Background technique [0002] Vanadium-titanium magnetite tailings can be used to manufacture materials such as pit filler, non-burning transfer, cement, etc., but the industrial added value of these applications is low, making it difficult to promote. Therefore, it is very important to open up a new application field to improve its industrial added value. Porous ceramic material is a functional material with excellent performance. How to make full use of vanadium-titanium magnetite tailings to prepare porous ceramic material is an urgent technical problem to be solved. Contents of the invention [0003] The invention aims at the present situation in the field of research and development of the problem that common methods are difficult to increase the industrial...

Claims

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Application Information

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IPC IPC(8): C04B38/02C04B33/132
CPCC04B33/1324C04B33/1328C04B38/02C04B2235/3217C04B2235/3218C04B2235/36C04B2235/96C04B38/0074Y02P40/60
Inventor 董洪峰艾桃桃李文虎
Owner SHAANXI SCI TECH UNIV
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