Preparation process of zirconium silicate ball filler

A technology of zirconium silicate ball and preparation process, which is applied in ceramic products, chemical/physical process, inorganic chemistry, etc., can solve the problems of fragility, reduced filler life, low impact toughness of alumina, etc., to achieve impact toughness The effect of strength, high strength and toughness

Pending Publication Date: 2021-03-09
CHANGSHA XINGUANG SPECIAL CERAMIC CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] Alumina filler balls are commonly used in the chemical industry, which has the advantages of wear resistance and corrosion resistance. However, due to the low impact toughness of

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0025] Example 1:

[0026] First, 75-80 parts of zirconium sand (zirconia content in zirconia sand is 65%, particle size is 325 mesh), 5-8 parts of alumina powder (0.08% mgO content of 325 mesh), flux 1 part (flux is boric acid, the purity is greater than 99%), 3 parts of deionized water, 10 parts of charcoal powder (charcoal powder is a prested coal charcoal, particle size is 325 mesh), mixed in a V-mixer for 2h (The V-type mixer speed is 30 rpm). The AR gas is introduced into the electric arc furnace, and the mixture is gradually added to the three-phase AC electric arc furnace, and the mixture is continuously heated by the graphite electrode to the melting state. After the mixture is completed and the melted refining is completed, the furnace is poured, and the compressed air (0.7 MPa of the compressed air pressure is 30 °, the blowing angle is 30 °), which will be melted Zirconium silicate microbeads spray the ball. The pellets were collected after the cooling solid was collec...

Example Embodiment

[0027] Example 2:

[0028] First, 75-80 parts of zirconium sand (zirconia content in zirconia sand is 65%, particle size is 325 mesh), 5-8 parts of alumina powder (0.08% mgO content of 325 mesh), flux 1 part (flux is boric acid, the purity is greater than 99%), 3 parts of deionized water, 15 pieces of charcoal powder (charcoal powder is a prested coal charcoal, the particle size is 325 mesh), mixed in the V-mixer for 2h (The V-type mixer speed is 30 rpm). The AR gas is introduced into the electric arc furnace, and the mixture is gradually added to the three-phase AC electric arc furnace, and the mixture is continuously heated by the graphite electrode to the melting state. After the mixture is completed and the melting is completed, the furnace is poured, and the compressed air (0.7 MPa of the compressed air pressure is 30 °, the blowing angle is 30 °), which will be melted. Zirconium silicate microbeads spray the ball. The pellets were collected after the cooling solid was collec...

Example Embodiment

[0029] Example 3:

[0030] First, 75-80 parts of zirconium sand (zirconia content in zirconia sand is 65%, particle size is 325 mesh), 5-8 parts of alumina powder (0.08% mgO content of 325 mesh), flux 1 part (flux is boric acid, the purity is greater than 99%), 3 parts of deionized water, 20 serum powder (charcoal powder is chip-shaped coal charcoal, particle size is 325 mesh), mixed in a V-mixer for 2h (The V-type mixer speed is 30 rpm). The AR gas is introduced into the electric arc furnace, and the mixture is gradually added to the three-phase AC electric arc furnace, and the mixture is continuously heated by the graphite electrode to the melting state. After the mixture is completed and the melting is completed, the furnace is poured, and the compressed air (0.7 MPa of the compressed air pressure is 30 °, the blowing angle is 30 °), which will be melted. Zirconium silicate microbeads spray the ball. The pellets were collected after the cooling solid was collected and placed in...

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PUM

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Abstract

The invention discloses a preparation process of a zirconium silicate ball filler. The preparation process comprises the following steps of: step 1, adding zircon sand, alumina powder, a fluxing agentand charcoal powder into an aqueous solution, and mixing the materials to form a mixture; 2, introducing argon into a hearth for atmosphere protection, gradually adding the mixture into the hearth, and heating the mixture to be in a molten state, and forming a molten mixture; and step 3, pouring the mixture in the molten state out of the hearth, blowing the molten mixture flowing out of a launderof the hearth by using compressed air, blowing the molten mixture into balls, performing cooling, solidifying and heat preservation to obtain zirconium silicate ball fillers with different particle sizes. The zirconium silicate ball filler provided by the invention has compressive strength of more than 30MPa, strong acid corrosion resistance and impact toughness, and micron-sized through apparentporosity of 25-40%, and is suitable for chemical industry, water treatment filtration and inorganic salt adsorption.

Description

technical field [0001] The invention relates to the field of chemical industry, in particular to a preparation process of zirconium silicate spherical filler. Background technique [0002] Alumina filler balls are commonly used in the chemical industry, which has the advantages of wear resistance and corrosion resistance. However, due to the low impact toughness of alumina, it is easy to break during transportation and feeding operations, resulting in a reduction in the life of the filler and affecting the quality of the filler. Adsorption effect. [0003] Therefore, there is an urgent need to develop an inorganic ceramic ball with good fluidity, wear resistance, corrosion resistance, and sufficient pores. Contents of the invention [0004] In view of this, the present invention proposes a preparation process of zirconium silicate ball filler, which can be used for adsorption and filtration of catalyst carrier and impurities. [0005] On the one hand, the present inventi...

Claims

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Application Information

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IPC IPC(8): C04B35/48C04B35/653C04B38/06C04B38/10B01J21/16B01J32/00B01J35/08B01J35/02B01D39/20B01J20/20B01J20/28B01J20/30C02F1/28C02F1/00
CPCC04B35/481C04B35/653C04B38/009B01J21/16B01J35/08B01J35/023B01D39/20B01J20/103B01J20/06B01J20/041B01J20/08B01J20/20B01J20/3064B01J20/28019C02F1/001C02F1/288C04B2235/3217C04B2235/3409C04B2235/5436C04B2235/94C04B2235/95C04B2235/96C04B2235/9692C04B38/068C04B38/10C04B38/0074C04B38/0054
Inventor 鲁新辉
Owner CHANGSHA XINGUANG SPECIAL CERAMIC CO LTD
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