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A kind of Longquan celadon prepared from rare earth tailings and its manufacturing method

A technology of rare earth tailings and a manufacturing method, which is applied in the field of Longquan celadon, can solve the problems of insufficient strength and color strength of celadon, high cost of raw materials, hindering the popularization and application of Longquan celadon, etc., and achieves good suspension and dispersion and strong three-dimensional effect. , the effect of improving resource utilization

Active Publication Date: 2021-05-28
LISHUI UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, factors such as high cost of raw materials, insufficient celadon strength and color strength hinder the popularization and application of Longquan celadon

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] S1 is calculated by weight, and the oxide components of the Longquan celadon blank are prepared as follows: 45% of rare earth tailings, 55% of quartz, 10% of calcined alumina powder, 25% of calcined kaolin powder, 15% of kaolin powder, 3% of potassium feldspar powder, Calcium oxide 0.4%, purple gold soil 4%. Among them, the chemical composition content of rare earth tailings is: SiO 2 65.56%, Al 2 o 3 24.57%, Fe 2 o 3 1.7%, K 2 O1.0%, Na 2 O 0.3%, CaO 0.1%, MgO 1.2%, TiO 2 0.2%, I.L. 3.0%.

[0024] S2 In terms of weight percentage, the weight percentage of raw materials, water and additives for Longquan celadon porcelain body is 54:41:5. Wherein, based on the green body blank formula, the binder carboxymethyl cellulose is 12%, the plasticizer glycerin is 15%, the lubricant cellulose acetate is 25%, and the dispersant PMAA-NH 4 1%. After mixing raw materials, water and additives for billet evenly, put them in a ball mill and ball mill until D10>0.06μm, D90 ...

Embodiment 2

[0028] S1 is calculated by weight, and the oxide components of preparing Longquan celadon blank are as follows: 50% of rare earth tailings, 50% of quartz, 20% of calcined alumina powder, 30% of calcined kaolin powder, 10% of kaolin powder, 4% of potassium feldspar powder, Calcium oxide 0.5%, purple gold clay 5%. Among them, the chemical composition content of rare earth tailings is: SiO 2 67.89%, Al 2 o 3 27.78%, Fe 2 o 3 1.5%, K 2 O1.1%, Na 2 O 0.4%, CaO 0.2%, MgO 1.0%, TiO 2 0.2%, I.L. 3.5%.

[0029] S2 In terms of weight percentage, the weight percentage of raw materials, water and additives for Longquan celadon porcelain blank is 62:35:3. Wherein, based on the formula of the green body, the composition of the additive is 10% of the binder polyvinyl alcohol, 13% of the plasticizer triethylene glycol acetate, 21% of the lubricant cellulose acetate, and 21% of the dispersant polyethylene glycol. 1%. After mixing raw materials, water and additives for billet even...

Embodiment 3

[0033] S1 In parts by weight, the oxide components of Longquan celadon blank are prepared as follows: 52% of rare earth tailings, 56% of quartz, 25% of calcined alumina powder, 34% of calcined kaolin powder, 16% of kaolin powder, 5% of potassium feldspar powder, Calcium oxide 0.7%, purple gold clay 4%. Among them, the chemical composition content of rare earth tailings is: SiO 2 68.97%, Al 2 o 3 29.39%, Fe 2 o 3 2.3%, K 2 O1.4%, Na 2 O 0.2%, CaO 0.3%, MgO 1.0%, TiO 2 0.1%, I.L. 4.5%.

[0034] S2 In terms of weight percentage, the weight percentage of raw materials, water and additives for Longquan celadon porcelain body is 61:35:4. Wherein, based on the green body blank formula, the additives consist of 6.5% of binder starch, 11% of plasticizer glycerin, 23% of lubricant cellulose acetate, and 2% of dispersant GTO. After mixing raw materials, water and additives for billet evenly, put them in a ball mill and ball mill until D10>0.06μm, D90 is 0.35±0.05μm, and D100...

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Abstract

The invention discloses a Longquan celadon prepared from rare-earth tailing sand and a manufacturing method thereof. It includes raw materials for Longquan celadon blanks, water and additives, and the percentage by weight is 50-65:35-40:1-5. The weight percentages of raw materials in the Longquan celadon blank oxide are respectively: 15-75% of rare earth tailings, 30-65% of quartz, 10-30% of calcined alumina powder, 15-30% of calcined kaolin powder, and 30-30% of kaolin powder. 50%, potassium feldspar powder 2-10%, calcium oxide 1-3%, purple gold soil 1-8%; based on Longquan celadon blank, the composition of the additives is 2-7% of binder, 5-7% of plasticizer 15%, lubricant 21-25%, dispersant 1-5%. The invention makes full use of discarded rare earth resources, effectively promotes the resource utilization of rare earth tailings and the application and development of Longquan celadon porcelain making technology, and greatly reduces the cost of planned production of Longquan celadon.

Description

technical field [0001] The invention relates to the technical field of Longquan celadon, in particular to a Longquan celadon prepared from rare earth tailings and a manufacturing method thereof. Background technique [0002] my country has abundant reserves of rare earth resources, and rare earth tailings are the tailings left after rare earth extraction. However, due to the low grade of rare earth ores, the mining of rare earths brings a large amount of rare earth tailings. At present, the treatment methods of rare earth tailings are mainly stacking or landfilling. This treatment method occupies a large area and wastes a lot of land resources; and this treatment method will cause serious pollution to water and soil resources, destroy the ecological balance, and hinder economic development. sustainable development. Therefore, the resource regeneration and utilization of rare earth tailings is an important way to realize the sustainable development of mineral resources. It i...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C04B33/13C04B33/132C04B33/34C04B33/24C04B35/632
CPCC04B33/13C04B33/1305C04B33/132C04B33/24C04B33/34C04B35/632C04B2235/3208C04B2235/3217C04B2235/3418C04B2235/3472C04B2235/96C04B2235/9607Y02P40/60
Inventor 施群周灵
Owner LISHUI UNIV