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Preparation method for lead-zinc-silver tailing low-temperature-sintered encaustic brick glaze

A technology of glazed bricks and glazes, which is applied in the field of preparation of low-fired glazed bricks from lead-zinc-silver mine tailings, can solve the problems of high energy consumption, unsuitability, and environmental pollution, and achieve good wear resistance, easy molding, good hydrophobic effect

Inactive Publication Date: 2016-09-21
叶国强
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, its sintering temperature is 1160-1170°C, which is high energy consumption and pollutes the environment. It is not suitable for the development of future economic strategies. Therefore, from the perspective of energy conservation and the country, future development must be low-temperature sintering, energy conservation and environmental protection.

Method used

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  • Preparation method for lead-zinc-silver tailing low-temperature-sintered encaustic brick glaze

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preparation example Construction

[0022] A method for preparing lead-zinc-silver tailings low-fired glazed bricks, comprising the following steps:

[0023] (1) Prepare materials: prepare the body raw materials and glaze raw materials of the glazed brick:

[0024] The glazed brick body consists of the following raw materials in parts by weight:

[0025] 120 parts of lead-zinc-silver mine tailings; 80 parts of high bauxite; 9 parts of mullite; 6 parts of nano-alumina; 6 parts of titanium dioxide; 3 (VO 4 ) 2 6 parts; 6 parts of zinc oxide; 6 parts of potassium carbonate; 6 parts of sodium tetraborate decahydrate; 6 parts of water glass;

[0026] (2) Green body mixing, molding, and drying: weigh the green body raw materials according to the formula, wet ball mill the green body raw materials to a 200-mesh sieve, and the sieve residue is 0.3wt%; dehydrate the sieved slurry into a mud cake, and aged for 5 days; followed by cold isostatic pressing, followed by drying;

[0027](3) Glaze mixing, glazing, and mic...

Embodiment 1

[0031] A method for preparing lead-zinc-silver tailings low-fired glazed brick glaze, comprising the following steps:

[0032] (1) Prepare materials: prepare the raw materials of the glaze of the glazed brick: the glazed brick glaze is made up of the following raw materials in parts by weight:

[0033] 44 parts of chromium tin purple material; 9 parts of cryolite; 9 parts of mullite; 4 parts of nano-alumina; 4 parts of nano-titanium dioxide; 4 parts of Ca3(VO4)2; 4 parts of zinc oxide; 4 parts of sodium borate; 2 parts of phosphoric acid; 150 parts of n-amyl alcohol; 150 parts of ethanol; 2 parts of zirconium silicate; 2 parts of methyl cellulose; 270 parts of water;

[0034] (2) Raw material mixing: raw material mixing, first mix isopropanol and ethanol to form a mixed alcohol, then add chromium tin purple material, stir for 5 minutes, add cryolite and mullite after stirring and mixing, then add nano-alumina, nano Titanium dioxide, Ca3(VO4)2, zinc oxide, lithium carbonate, s...

Embodiment 2

[0036] A method for preparing lead-zinc-silver tailings low-fired glazed brick glaze, comprising the following steps:

[0037] (1) Prepare materials: prepare the raw materials of the glaze of the glazed brick: the glazed brick glaze is made up of the following raw materials in parts by weight:

[0038] 50 parts of chromium tin purple material; 9 parts of cryolite; 9 parts of mullite; 4 parts of nano-alumina; 4 parts of nano-titanium dioxide; 4 parts of Ca3(VO4)2; 4 parts of zinc oxide; 4 parts of sodium borate; 2 parts of phosphoric acid; 150 parts of n-amyl alcohol; 150 parts of ethanol; 2 parts of zirconium silicate; 2 parts of methyl cellulose; 300 parts of water;

[0039] (2) Raw material mixing: raw material mixing, first mix isopropanol and ethanol to form a mixed alcohol, then add chromium tin purple material, stir for 8 minutes, add cryolite and mullite after stirring and mixing, then add nano-alumina, nano Titanium dioxide, Ca3(VO4)2, zinc oxide, lithium carbonate, s...

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Abstract

The invention relates to a preparation method for a lead-zinc-silver tailing low-temperature-sintered encaustic brick glaze. A purple chrome-tin pigment, cryolite and mullite are adopted as main raw materials of the glaze, the same glaze additive capable of reducing the sintering temperature, nanometer alumina, nanometer titania, Ca3(VO4)2, zinc oxide, lithium carbonate, sodium tetraborate decahydrate, a solvent capable of improving hydrophobicity, aging resistance and brushing resistance of the glaze and an additive thereof, phosphoric acid, n-pentyl alcohol, ethanol, zirconium silicate, methyl cellulose and water are adopted, and glazing can be implemented to obtain an encaustic brick at the sintering temperature of 600 to 730 DEG C; in addition, the prepared encaustic brick has good crystallization effects, the physicochemical performance of pressure resistance and the like meets requirements for use, and the glaze is crystal clear, strong in stereoscopic sensation and bright in color, and can be sintered to obtain ceramics at low temperature; moreover, the solvent is optimized to achieve higher hydrophobicity and high aging resistance and brushing resistance.

Description

technical field [0001] The invention belongs to the field of glaze preparation for glazed bricks, in particular to a method for preparing low-fired glazed brick glazes from tailings of lead-zinc-silver mines. Background technique [0002] Glazed brick is an ancient and traditional ceramic material in my country. With the development of tourism, people's demand for glazed bricks is also increasing, and their requirements are also getting higher and higher. [0003] Existing glazed bricks are usually made by mixing and firing various mud materials. The glaze layer is generally thick and stress is generated, and the quality is heavy, which easily leads to defects such as cracks and chipping on the glazed surface of the product. Not smooth enough, and the mud is prone to pollution in the production process, high cost and energy consumption, the quality of the product is not stable enough, the gloss of the glaze is not enough, and the color is not rich and stable enough. Fades ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C03C8/20C04B41/86C04B35/195C04B35/622
CPCC03C8/20C04B35/195C04B35/62204C04B41/5022C04B41/86C04B2235/3201C04B2235/3208C04B2235/3217C04B2235/3232C04B2235/3239C04B2235/3284C04B2235/3409C04B2235/3427C04B2235/3463C04B2235/5454C04B41/4539C04B41/0072
Inventor 叶国强
Owner 叶国强
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