Method for preparing yellow phosphorus scrap porous ceramic material

A technology for porous ceramics and yellow phosphorus slag, which is applied in the production of ceramic materials, ceramic products, and ceramic molding machines, etc., can solve the problems of yellow phosphorus waste slag occupying space, waste of resources, and environmental pollution.

Inactive Publication Date: 2008-10-22
GUIZHOU UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] A large amount of yellow phosphorus waste residue will be produced in the production process of chemical product yellow phosphorus, which is rich in CaO and SiO 2 At present, a small amount of materials are used as raw materials for building materials, and most of them are piled up and discarded, resulting in a huge waste of resources. At the same time, the stacking of yellow phosphorus waste residues also takes up a lot of space, which is easy to pollute the surrounding environment. The reuse of phosphorus waste residue is also an important issue

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0054] (1) Ingredients: Take 50Kg of yellow phosphorus waste residue and 30Kg of clay shale and grind to a particle size of 80μm, take 19Kg of charcoal powder and pulverize it to 180μm, take 0.8Kg of water glass and dissolve it in 8Kg of water, and then mix yellow phosphorus waste residue, clay shale, charcoal Mix the powder and water glass solution evenly;

[0055] (2) drying the uniformly mixed ingredients at 105°C for 30 minutes to obtain a green body;

[0056] (3) The dried embryo body is pressed and formed under a pressure of 15KN by a unidirectional compression molding method, and kept for 25 minutes under a pressure of 15KN;

[0057] (4) Sinter the pressed green body at 1140° C. for 60 minutes, keep it warm for 210 minutes, and then cool down to room temperature with the furnace to obtain the porous ceramic material.

Embodiment 2

[0059] (1) Ingredients: Take 30Kg of yellow phosphorus waste residue, 40Kg of clay shale and grind to a particle size of 75 μm, take 15Kg of charcoal powder and pulverize it to 180 μm, take 1.2Kg of water glass and dissolve it in 12Kg of water, then mix yellow phosphorus waste residue, clay shale, charcoal Mix the powder and water glass solution evenly;

[0060] (2) drying the uniformly mixed ingredients at 105°C for 30 minutes to obtain a green body;

[0061] (3) The dried embryo body is pressed and formed under a pressure of 10KN by a unidirectional compression molding method, and kept under a pressure of 10KN for 20 minutes;

[0062] (4) Sinter the pressed green body at 1120° C. for 60 minutes, keep it warm for 210 minutes, and then cool down to room temperature with the furnace to obtain the porous ceramic material.

Embodiment 3

[0064] (1) Ingredients: Take 65Kg of yellow phosphorus waste residue and 25Kg of clay shale and grind to a particle size of 96μm, take 20Kg of charcoal powder and pulverize it to 180μm, take 0.5Kg of water glass and dissolve it in 5Kg of water, then mix yellow phosphorus waste residue, clay shale, charcoal Mix the powder and water glass solution evenly;

[0065] (2) drying the uniformly mixed ingredients at 105°C for 30 minutes to obtain a green body;

[0066] (3) The dried embryo body is pressed and formed under a pressure of 20KN by a unidirectional compression molding method, and kept under a pressure of 20KN for 30 minutes;

[0067] (4) Sinter the pressed green body at 1000° C. for 60 minutes, keep it warm for 210 minutes, and then cool down to room temperature with the furnace to obtain the porous ceramic material.

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Abstract

The invention provides a preparation method of yellow phosphorus slag lacunaris ceramic material, which takes solids waste, yellow phosphorus slag, as the main raw material; charcoal dust is used as a pore-forming agent and is added in a certain amount of bonding agent. The preparation method of the lacunaris ceramic is as follows: the raw materials are mixed evenly and dried at the temperature of 105 DEG C for 30 minutes and then are processed by pressing, baked at the temperature of 1000 to 1400 DEG C and preserved heat to make the lacunaris ceramics. The result shows that the porosity of the sample is 29.03 to 51.46 percent; water absorbing capacity is 20.02 to 39.28 percent; the volume density is 1.15 to 1.89 g / cm<3>; the pressive strength is 2.07 to 9.86 MPa. The lacunaris ceramics has the advantages of good connectedness, even aperture distribution, which makes good use of solids waste and reduces production cost.

Description

technical field [0001] The invention relates to a preparation method of a porous ceramic material, in particular to a preparation method of a porous ceramic material with yellow phosphorus waste residue and clay shale as main raw materials. Background technique [0002] Porous ceramics are a kind of inorganic non-metallic materials with pores as the main phase. Its notable feature is high porosity, and the surface, shape, size and distribution of pores can be adjusted. The pore size ranges from millimeters to nanometers. Compared with traditional porous materials such as glass fibers and mesh metal materials, porous ceramics also have the advantages of high temperature resistance, corrosion resistance, heat resistance, shock resistance, uniform and narrow pore size distribution, low cost, and long service life. Due to its huge surface area, porous ceramics have excellent thermal, electrical, magnetic, optical, chemical and other properties. With the continuous improvement o...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B38/00C04B35/14C04B35/057C04B33/132C04B38/06B28B3/00
CPCY02P40/60
Inventor 张杰杨恩林杨国峰谢飞
Owner GUIZHOU UNIV
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