Micronporous ceramic plate and its preparation method

A porous ceramic plate and ceramic technology, which is applied in the field of forming technology and rare earth waste residue, can solve the problem of difficulty in activating water, activating oil and energy saving, making orderly through straight holes, and low yield of porous ceramic technology and other issues, to achieve the effect of low manufacturing cost, small pore size, and small porosity

Inactive Publication Date: 2005-08-24
BEIJING JIAOTONG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] The technical problem to be solved by the invention is that the yield of existing porous ceramics is low, the product cost is high, it is difficult to make orderly through straight holes, and there is no trace radiation function, etc. When the pores are smaller, the porosity is larger (ie Weight is small), the lower the intensity, the lower the intensity of radiation per unit volume, and it is not easy to be used for activating water, activating oil and energy saving

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment approach 1

[0041]Embodiment 1 Micron Porous Composite Rare Earth Plate

[0042] A porous ceramic plate with a pore diameter of 100 μm, an area including pores of 40×40 mm, and a thickness of 20 mm was produced. Its manufacturing process is as follows:

[0043] ①Preparation of pore-forming materials: Select a fiber mesh with a mesh size of 2 × 2 mm and a fiber diameter of 160 μm, cut into 17 pieces of 40 × 20 mm fiber mesh, and coat the fiber mesh with a layer of magnesium oxide, 40% carbon powder and water. 70% polyvinyl alcohol solution mixture.

[0044] ②Weighing by weight: 60% of rare earth waste residue, 4% of tourmaline, 30% of cordierite, 2% of kaolin, mixed with 5% of the binder and 3% of the raw material Tung oil and 55% water of the raw material are stirred into a slurry.

[0045] ③Separate lamination forming: firstly roll the mud into a 40×20mm mold, press it to a thickness of 2.5mm, and then press a 40×20mm fiber web on it, and add a certain amount of the same method to the...

Embodiment approach 2

[0051] Embodiment 2 Micron Porous Rare Earth Plate

[0052] A porous rare earth plate with a pore diameter of 100 μm, an area containing pores of 40×40 mm, and a thickness of 20 mm was produced. Its manufacturing process is as follows:

[0053] ①Preparation of pore-forming materials: Select a fiber mesh with a mesh size of 2 × 2 mm and a fiber diameter of 160 μm, cut into 17 pieces of 40 × 20 mm fiber mesh, and coat the fiber mesh with a layer of calcined alumina and 30% carbon powder and 70% aqueous polyvinyl alcohol solution mixture.

[0054] ②Weighing by weight: 74% of rare earth waste residue, 22% of cordierite, 1% of kaolin, mix them and then add 6% of the binder of the raw material, 4% of the raw material tung oil and 60% of the raw material of water into a slurry.

[0055] ③Divided lamination forming: First, roll the slurry into a 40×20mm mold, pressurize it to a thickness of 2.8mm, and then press a 40×20mm fiber web on it. In the same way, add a certain amount to th...

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PUM

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Abstract

A micron-porous ceramic plate for activating water or oil is prepared from rejected RE dregs, tourmalinite, cordierite and kaolinite through proportional mixing to become slurry, arranging nylon or combustible fibre net layer by layer, moulding, drying, surface treating, and sintering. It has high compression strength and negative ion generating rate.

Description

technical field [0001] The invention belongs to a manufacturing method in the field of inorganic non-metallic ceramic materials, and relates to a molding process of ceramic materials and utilization of rare earth waste residues. This porous ceramic is mainly used for water activation, oil activation and energy saving. Background technique [0002] Porous ceramics, also known as microporous ceramics, foamed ceramics, etc., have uniformly distributed micropores, low bulk density, three-dimensional network skeleton structure, and interconnected ceramic products. It has developed specific surface area and unique physical surface characteristics, selective permeability, energy absorption or pressure resistance characteristics for liquid and gas media, and the unique high temperature resistance and corrosion resistance of ceramic materials. Porous ceramics are widely used in gas and liquid filtration, purification and separation, chemical catalytic carrier, advanced thermal insul...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B35/16C04B35/50C04B35/622C04B38/06
Inventor 金宗哲黄丽容卫罡
Owner BEIJING JIAOTONG UNIV
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