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Porous ceramic prepared by using quartz crystal waste as raw material, and method thereof

A technology of porous ceramics and crystal diamonds, applied in the field of porous ceramics, can solve the problems of insufficient ceramic strength and color rendering strength, hinder the popularization and application of ceramics, and high raw material costs, achieve good suspension and dispersion, improve resource utilization, and three-dimensional strong effect

Pending Publication Date: 2019-11-12
LISHUI UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, factors such as high raw material costs, insufficient ceramic strength and color strength hinder the popularization and application of ceramics.

Method used

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  • Porous ceramic prepared by using quartz crystal waste as raw material, and method thereof
  • Porous ceramic prepared by using quartz crystal waste as raw material, and method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] S1: The base material for the porous ceramic blank consists of the following components by weight: 25 parts of crystal diamond waste, 25 parts of kaolin, 25 parts of quartz, 10 parts of illite, 5 parts of bentonite, 5 parts of pyrophyllite, and 5 parts of ball clay.

[0028] Among them, the chemical composition content of crystal diamond waste is: SiO 2 47%, Na 2 SiO 3 36%, CaO6%, CaF 2 2%, Na 2 O4.5%, ZnO0.1%, K 2 O1.5%, Na 2 O1%, MgO0.36%, Fe 2 o 3 0.23%, TiO 2 0.30%, I.L1.0%, other trace elements (La, Sr, Ce, As, Pb, S) 0.01%.

[0029] S2: By weight percentage, the ratio of porous ceramic base material: water: pore-forming agent is 25:60:15. After mixing the raw materials, water and pore-forming agent for the ceramic billet evenly, put them in a ball mill and ball-mill until D10>0.05μm, D50 is 0.45±0.05μm, and D100<4μm, then use a 220-mesh sieve for sieving Remove impurities and stale, sieve 0.2%; water content of slurry is 20%; specific gravity of slurry i...

Embodiment 2

[0033] S1 is composed of the following components by weight according to raw materials: 50 parts of crystal diamond waste, 20 parts of kaolin, 10 parts of quartz, 5 parts of illite, 5 parts of bentonite, 5 parts of pyrophyllite and 5 parts of ball clay.

[0034] Among them, the chemical composition content of crystal diamond waste is: SiO 2 45.89%, Na 2 SiO 3 35%, CaO7.11%, CaF 2 2.5%, Na 2 O1.4%, ZnO0.16%, K 2 O1.68%, Na 2 O2.45%, MgO0.17%, Fe 2 o 3 0.5%, TiO 2 0.23%, I.L2.53%, trace elements 0.38%.

[0035] S2 In terms of weight percentage, the weight percentage of base material for porous ceramic blank, water and pore-forming agent is 25:65:10. After mixing the ceramic base material, water and pore-forming agent evenly, put it in the mixer until the fineness of D10>0.05μm, D50 is 0.45±0.05μm, and D100<4μm, then use a 220-mesh sieve to sieve. Miscellaneous, stale, 0.5% sieve residue; slurry moisture content 25%; slurry specific gravity 1.65%; slurry flow rate 15 se...

Embodiment 3

[0039] S1 is composed of the following components by weight according to raw materials: 35 parts of crystal diamond waste, 35 parts of kaolin, 15 parts of quartz, 5 parts of illite, 5 parts of bentonite, 5 parts of pyrophyllite and 5 parts of ball clay.

[0040] Among them, the chemical composition content of crystal diamond waste is: SiO 2 44.74%, Na 2 SiO 3 35%, CaO7.5%, CaF 2 3%, Na 2 O5.5%, ZnO0.1%, MnO0.1%, K 2 O1.5%, Na 2 O1%, MgO0.1%, Fe 2 o 3 0.22%, TiO 2 0.1%, I.L1.13%, other trace elements (La, Sr, Ce, S) 0.01%.

[0041] S2 In terms of weight percentage, the weight percentage of base material for porous ceramic blank, water and pore-forming agent is 35:55:10. After the ceramic base material, water and pore-making are mixed evenly, put them in a ball mill and ball mill until D10>0.05μm, D50 is 0.45±0.05μm, and D100<4μm, then use a 220-mesh sieve to sieve and remove impurities , stale, 0.3% sieved; slurry moisture content 24%; slurry specific gravity 1.55%; s...

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Abstract

The invention discloses a porous ceramic prepared by using quartz crystal waste as a raw material, and a method thereof, wherein the raw materials comprise a porous ceramic base material, water and apore-forming agent according to a weight part ratio of 25-45:50-65:5-15, and the pore-forming agent is one or a plurality of materials selected from sawdust, charcoal chips and sodium carbonate. The preparation method comprises: weighing, mixing, crushing, and molding to prepare a ceramic material billet; and drying, and carrying out heat treatment. According to the present invention, the porous ceramic material has advantages of high porosity, low heat treatment temperature, low cost, no waste gas generation, no waste residue generation, low density and large specific surface area; and with the method, the discarded quartz crystal waste is completely utilized, the resource utilization of quartz crystal waste and the application and development of ceramic-to-porcelain technology are effectively promoted, the cost of the planned production in quartz crystal industry is substantially reduced, the environmental protection zero-emission production is achieved, and the healthy and rapid development of quartz crystal industry is promoted.

Description

technical field [0001] The invention relates to the technical field of ceramics, in particular to a porous ceramic prepared from crystal diamond waste as a raw material and a method thereof. Background technique [0002] Natural crystal is a rare mineral in the country and crystal stone is a non-renewable resource. The country has long used crystal minerals as a special non-metallic mineral resource for development, utilization and protection. At present, during the processing of my country's crystal diamond industry, a large amount of crystal diamond waste, waste residue, sedimentation mud and other wastes have been produced, which have been mainly piled up, landfilled or dumped everywhere. These treatment methods occupy a large area and waste a lot of land. resources; and these treatment methods will cause serious pollution to water and soil resources, destroy the ecological balance, and hinder the sustainable development of the economy. Therefore, the resource regeneratio...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B33/132C04B33/34C04B38/02C04B38/06C04B41/86
CPCC04B33/1324C04B33/34C04B38/02C04B38/0675C04B38/068C04B41/5022C04B41/86C04B2235/3418C04B2235/6562C04B2235/6567C04B2235/658C04B2235/96Y02P40/60
Inventor 施群周灵
Owner LISHUI UNIV