CN105777066A - Longquan celadon made from rare earth tailings and manufacture method thereof - Google Patents

Longquan celadon made from rare earth tailings and manufacture method thereof Download PDF

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CN105777066A
CN105777066A CN201610161295.XA CN201610161295A CN105777066A CN 105777066 A CN105777066 A CN 105777066A CN 201610161295 A CN201610161295 A CN 201610161295A CN 105777066 A CN105777066 A CN 105777066A
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longquan celadon
rare earth
raw material
earth tailings
celadon
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CN105777066B (en
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施群
周灵
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Lishui University
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Abstract

The invention discloses Longquan celadon made from rare earth tailings and a manufacture method thereof, comprising materials for a Longquan celadon body, water and an additive having a weight ratio of 50-65:35-40:1-5. The materials for the Longquan celadon body include, in percent by weight: 15-75% of rare earth tailings, 30-65% of quartz, 10-30% of calcining oxidized aluminum powder, 15-30% of calcined kaolin powder, 30-50% of kaolin powder, 2-10% of potassium feldspar powder, 1-3% of calcium oxide, 1-8% of Zijin clay; the additive comprises, by the materials for the Longquan celadon body: 2-7% of an adhesive, 5-15% of a plasticizer, 21-55% of a lubricant, and 1-5% of a dispersant. The discarded rare earth resources are made full use, resourceful utilization of rare earth tailings and the application and development of Longquan celadon making technology are promoted effectively, and planned production cost of Longquan celadon is reduced greatly.

Description

A kind of Longquan celadon prepared with rare earth tailings for raw material and manufacture method thereof
Technical field
The present invention relates to a kind of Longquan celadon technical field, particularly relate to a kind of Longquan celadon prepared with rare earth tailings for raw material and manufacture method thereof.
Background technology
China's rare earth resources rich reserves, rare earth tailings is remaining mine tailing after Extraction of rare earth, but owing to Rare Earth Mine taste is relatively low, the exploitation of rare earth brings substantial amounts of rare earth tailings.At present, the processing mode of rare earth tailings is mainly piled up or landfill, and this processing mode floor space is relatively big, wastes a large amount of land resource;And water and soil resources will be caused severe contamination by this processing mode, destroy ecological balance, hinder the sustainable development of economy.Therefore, the resource regeneration to rare earth tailings, is the important channel realizing Sustainable Development of Mineral Resource, is not only the Strategic Demand of China's Rare-earth Industry, and Ye Shi China sets up the urgent needs of resource, energy conservation type society.
Longquan celadon, color and luster simple and natural with moulding dignity always is pure bright-colored well-known, has the bigger market demand.But, cost of material is high, celadon intensity and the factor of the aspect such as not enough hinders the popularization and application of Longquan celadon in intensity of colour.Celadon intensity and the deficiency in intensity of colour can be overcome with the Longquan celadon that rare earth tailings is raw material manufacture, and using discarded rare earth tailings as the raw material manufacturing celadon, reduce cost of material, alleviate environmental hazard, there is significant Social benefit and economic benefit.For this, a kind of Longquan celadon prepared with rare earth tailings for raw material and manufacture method thereof are urgently researched and developed.
Summary of the invention
The technical problem to be solved in the present invention is to provide a kind of Longquan celadon prepared with rare earth tailings for raw material and manufacture method thereof, improves the utilization rate of rare earth tailings.
For solving above technical problem, the technical scheme is that a kind of Longquan celadon prepared with rare earth tailings for raw material.It includes Longquan celadon base raw material, water and additive, and percentage by weight is 50~65:35~40:1~5.
Further, the raw material weight percentage ratio respectively rare earth tailings 15~75% of blank oxide in described Longquan celadon base raw material, quartz 30~65%, calcined oxide aluminium powder 10~30%, calcined kaolin powder 15~30%, kaolin powder 30~50%, feldspar in powder 2~10%, calcium oxide 1~3%, Zijin soil 1~8%;In Longquan celadon blank, additive consist of binding agent 2~7%, mould agent 5~15%, lubricant 21~25%, dispersant 1~5%.
Further, described rare earth tailings chemical composition contains SiO250~85%, Al2O35~20%, Fe2O31.5~3.5%, K2O0.6~2.5%, Na2O0.2~2.0%, CaO0.1~0.3%, MgO0.1~1.0%, TiO20.1~0.5%, I.L2.0~5.0%, K2O+Na2O2~10%.
Further, described binding agent be in carboxymethyl cellulose, polyvinyl alcohol, starch, glycerol one or more;Plasticizer is one or more in glycerol, acetic acid 2,2'-ethylenedioxybis(ethanol)., butyl stearate, Abalyn.;Lubricant is one or more in cellulose acetate, stearic acid, kerosene, microcrystalline wax, oleic acid;Dispersant is for for gathering methyl acrylamide (PMAA-NH4), ammonium chloride (NH4Cl), Polyethylene Glycol (mean molecule quantity is 10000), glycerol trioleate (GTO), one or more in Oleum Ricini (CTO).Above-mentioned additive can improve solid content in ball-milled mixtures, it is ensured that the dispersibility of Longquan celadon blank slip and stability.Above-mentioned additive makes raw material slip effect good, and additive is not volatile, and human body and environment is all safer.
Further, the base raw material of described Longquan celadon is one or more in Huang Tanni, Pucheng mud, precious Xi Nihezhu township mud;The granularity of described Longquan celadon base raw material is below 325 mesh sieves.
Further, a kind of Longquan celadon manufacture method prepared for raw material with rare earth tailings, comprise the following steps:
Base raw material and water are finely ground to all through 10000-hole sieve by S1 by mixing, and stir mixing 1~4h in batch mixer;Weigh base raw material, waterglass, sodium humate 5~8:0.3~1.0:0.45~0.65 carrying out slurry stirring mixing 3~4h in proportion, be subsequently adding additive and be stirred uniformly forming mud;
S2 carries out old after vacuum pugging, then repeats vacuum pugging, then is shaped;
The Longquan celadon base substrate of molding is dried by S3, after microwave drying and hot air drying, carries out biscuiting at 500~700 DEG C of temperature, is incubated 1~2h;
S4 after cooling, then execute tradition Longquan celadon green grass or young crops glaze layer 1~2mm, burn till at heat treatment temperature 1150~1300 DEG C under reducing atmosphere, heat treatment programming rate is 2~5 DEG C/min, be incubated 2~3h, it is thus achieved that a kind of be raw material with rare earth tailings Longquan celadon.
Further, in described step S1: the addition of rare earth tailings is 1~5 times of celadon blank;The addition of additive is 1~3 times of celadon blank.
Further, in described step S1: described celadon batch mixtures ball milling is D10 > 0.06 μm to fineness, D90 is 0.35 ± 0.05 μm, D100 < 3 μm, and use the screen cloth of aperture≤1 μm to carry out sieving remove impurity, thus obtaining Longquan celadon blank slip.After Longquan celadon blank slip reaches this micro/nano level fineness, Longquan celadon base substrate becomes porcelain intensity more preferably, and compactness is more preferably.
Further, in described step S2: slip fineness 325 order during slip is old;Tail over 0.3~0.6%;Slip moisture content 24~28%;Slip proportion 1.65~1.95%;Slurry flow rate 25~40 seconds.
Further, in described step S4: the described Longquan celadon painted raw material of green grass or young crops glaze is Zijin soil, Fe2O3, one or more in FeO.
The present invention adopts rare earth tailings to replace or replaces the common silica flour and Anhydrite that are generally adopted in part prior art, coordinate the celadon base material powder modification optimized, mainly by Free quartz in rare earth tailings and the kaolinite by Anhydrite air slaking, the characteristic fully can reacted with celadon base raw material, make solid state reaction carry out more complete, be favorably improved celadon and become porcelain intensity.
The present invention prepares Longquan celadon with rare earth tailings for raw material, and its base slip has good suspension and dispersibility, and chemical stability is high, rheological property is good, environment friendly and pollution-free.And, then through reductive heat treatment after the base substrate glazing of biscuiting, the associativity of base glaze is good, become porcelain intensity height, third dimension strong, tone exquisiteness no color differnece.
It is simple that the present invention manufactures Longquan celadon technique, and production cost can be greatly reduced, and fully improves rare earth tailings resource utilization.
Detailed description of the invention
Embodiment 1
By weight, preparation Longquan celadon blank oxide component is as follows: rare earth tailings 45% for S1, quartz 55%, calcined oxide aluminium powder 10%, calcined kaolin powder 25%, kaolin powder 15%, feldspar in powder 3%, calcium oxide 0.4%, Zijin soil 4%.Its middle rare earth tailings chemical constituent content is: SiO265.56%, Al2O324.57%, Fe2O31.7%, K2O1.0%, Na2O0.3%, CaO0.1%, MgO1.2%, TiO20.2%, I.L3.0%.
By weight percentage, the percentage by weight of Longquan celadon base raw material, water and additive is 54:41:5 to S2.Wherein, in base substrate blank formulation, described binding agent carboxymethyl cellulose is 12%, and plasticizer glycerol is 15%, and lubricant cellulose acetate is 25%, dispersant PMAA-NH4It is 1%.After base raw material, water and additive mix homogeneously, it is placed in ball mill and is milled to D10 > 0.06 μm, D90 is 0.35 ± 0.05 μm, after the fineness that D100 < is 3 μm, the screen cloth using aperture 325 order carries out sieving remove impurity, old, forms high-performance Longquan celadon base slip.
Slip filter pressing is formed pureed, deaeration after vacuum pugging is old by S3, then repeats vacuum pugging, then is dried by the Longquan celadon base substrate of molding, after microwave drying and hot air drying, carries out biscuiting at 650 DEG C of temperature, is incubated 1h.
S4 is after cooling, execute tradition Longquan celadon lavender grey glaze again, burn till at 1200 DEG C of temperature of reducing atmosphere, insulation 2h, heat treated heating rate is 2 DEG C/min, obtain into porcelain intensity height, bending and compressive strength is good, bright in luster, texture natural, texture is soft, third dimension is strong, have natural pale blue texture and color, the Longquan celadon product that surface is more smooth and smooth.
Embodiment 2
By weight, preparation Longquan celadon blank oxide component is as follows: rare earth tailings 50% for S1, quartz 50%, calcined oxide aluminium powder 20%, calcined kaolin powder 30%, kaolin powder 10%, feldspar in powder 4%, calcium oxide 0.5%, Zijin soil 5%.Its middle rare earth tailings chemical constituent content is: SiO267.89%, Al2O327.78%, Fe2O31.5%, K2O1.1%, Na2O0.4%, CaO0.2%, MgO1.0%, TiO20.2%, I.L3.5%.
By weight percentage, the percentage by weight of Longquan celadon base raw material, water and additive is 62:35:3 to S2.Wherein, in base substrate blank formulation, the composition binding agent polyvinyl alcohol of described additive is 10%, and plasticizer acetic acid 2,2'-ethylenedioxybis(ethanol). is 13%, and lubricant cellulose acetate is 21%, and dispersant Polyethylene Glycol is 1%.After base raw material, water and additive mix homogeneously, it is placed in ball mill and is milled to D10 > 0.06 μm, D90 is 0.35 ± 0.05 μm, after the fineness that D100 < is 3 μm, the screen cloth using aperture 325 order carries out sieving remove impurity, old, forms high-performance Longquan celadon base slip.
Slip filter pressing is formed pureed, deaeration after vacuum pugging is old by S3, then repeats vacuum pugging, then is dried by the Longquan celadon base substrate of molding, after microwave drying and hot air drying, carries out biscuiting at 600 DEG C of temperature, is incubated 1h.
S4 is after cooling, execute tradition Longquan celadon yellowish pea green glaze again, burn till at 1200 DEG C of temperature of reducing atmosphere, insulation 2.5h, heat treated heating rate is 2 DEG C/min, obtain into that porcelain intensity is high, bending and compressive strength is good, texture is natural, texture is soft, third dimension is strong, have natural pea green as texture, the Longquan celadon product that surface is more smooth, smooth.
Embodiment 3
By weight, preparation Longquan celadon blank oxide component is as follows: rare earth tailings 52% for S1, quartz 56%, calcined oxide aluminium powder 25%, calcined kaolin powder 34%, kaolin powder 16%, feldspar in powder 5%, calcium oxide 0.7%, Zijin soil 4%.Its middle rare earth tailings chemical constituent content is: SiO268.97%, Al2O329.39%, Fe2O32.3%, K2O1.4%, Na2O0.2%, CaO0.3%, MgO1.0%, TiO20.1%, I.L4.5%.
By weight percentage, the percentage by weight of Longquan celadon base raw material, water and additive is 61:35:4 to S2.Wherein, in base substrate blank formulation, the composition adhesive starch of described additive is 6.5%, and plasticizer glycerol is 11%, and lubricant cellulose acetate is 23%, and dispersant GTO is 2%.After base raw material, water and additive mix homogeneously, it is placed in ball mill and is milled to D10 > 0.06 μm, D90 is 0.35 ± 0.05 μm, after the fineness that D100 < is 3 μm, the screen cloth using aperture 325 order carries out sieving remove impurity, old, forms high-performance Longquan celadon base slip.
Slip filter pressing is formed pureed, deaeration after vacuum pugging is old by S3, then repeats vacuum pugging, then is dried by the Longquan celadon base substrate of molding, after microwave drying and hot air drying, carries out biscuiting at 600 DEG C of temperature, is incubated 2h.
S4 is after cooling, execute tradition Longquan celadon plum green glaze again, burn till at 1250 DEG C of temperature of reducing atmosphere, insulation 1.5h, heat treated heating rate is 2 DEG C/min, obtain into porcelain intensity height, bending and compressive strength is good, texture is natural, texture is soft, third dimension is strong, has natural plum green texture, the Longquan celadon product that surface is more smooth, smooth.
Embodiment 4
By weight, preparation Longquan celadon blank oxide component is as follows: rare earth tailings 51% for S1, quartz 54%, calcined oxide aluminium powder 27%, calcined kaolin powder 32%, kaolin powder 14%, feldspar in powder 6%, calcium oxide 1.0%, Zijin soil 5%.Its middle rare earth tailings chemical constituent content is: SiO265.28%, Al2O324.98%, Fe2O33.58%, K2O4.29%, Na2O0.26%, CaO0.33%, MgO0.53%, TiO20.09%, I.L4.0%.
By weight percentage, the percentage by weight of Longquan celadon base raw material, water and additive is 58:37:5 to S2.Wherein, in base substrate blank formulation, the composition binding agent polyvinyl alcohol of described additive is 5%, and plasticizer acetic acid 2,2'-ethylenedioxybis(ethanol). is 8%, and lubricant stearic acid is 22%, dispersant PMAA-NH4It is 3.5%.After base raw material, water and additive mix homogeneously, it is placed in ball mill and is milled to D10 > 0.06 μm, D90 is 0.35 ± 0.05 μm, after the fineness that D100 < is 3 μm, use the screen cloth of aperture 325 order, and the remove impurity that carries out sieving, old, form high-performance Longquan celadon base slip.
Slip filter pressing is formed pureed, deaeration after vacuum pugging is old by S3, then repeats vacuum pugging, then is dried by the Longquan celadon base substrate of molding, after microwave drying and hot air drying, carries out biscuiting at 550 DEG C of temperature, is incubated 1h.
S4 is after cooling, execute tradition Longquan celadon yellowish pea green glaze again, burn till at 1200 DEG C of temperature of reducing atmosphere, insulation 1.5h, heat treated heating rate is 2 DEG C/min, obtain into that porcelain intensity is high, bending and compressive strength is good, and texture is natural, texture is soft, third dimension is strong, have natural pea green texture, the Longquan celadon product that surface is more smooth, smooth.
Embodiment 5
By weight, preparation Longquan celadon blank oxide component is as follows: rare earth tailings 56% for S1, quartz 58%, calcined oxide aluminium powder 24%, calcined kaolin powder 32%, kaolin powder 18%, feldspar in powder 6%, calcium oxide 0.9%, Zijin soil 5%.Its middle rare earth tailings chemical constituent content is: SiO263.07%, Al2O326.06%, Fe2O33.9%, K2O2.4%, Na2O0.1%, CaO0.5%, MgO0.6%, TiO20.2%, I.L3.9%.
By weight percentage, the percentage by weight of Longquan celadon base raw material, water and additive is 60:37:3 to S2.Wherein, in base substrate blank formulation, the composition adhesive starch of described additive is 6%, and plasticizer butyl stearate is 10%, and lubricant cellulose acetate is 22%, and dispersant Polyethylene Glycol is 2.5%.After base raw material, water and additive mix homogeneously, it is placed in ball mill and is milled to D10 > 0.06 μm, D90 is 0.35 ± 0.05 μm, after the fineness that D100 < is 3 μm, use the screen cloth of aperture 325 order, and the remove impurity that carries out sieving, old, form high-performance Longquan celadon base slip.
Slip filter pressing is formed pureed, deaeration after vacuum pugging is old by S3, then repeats vacuum pugging, then is dried by the Longquan celadon base substrate of molding, after microwave drying and hot air drying, carries out biscuiting at 650 DEG C of temperature, is incubated 2h.
S4 is after cooling, execute tradition Longquan celadon yellowish pea green glaze again, burn till at 1250 DEG C of temperature of reducing atmosphere, insulation 2.5h, heat treated heating rate is 2 DEG C/min, it is thus achieved that become porcelain intensity height, bending and compressive strength good, and texture is natural, texture is soft, third dimension is strong, has natural pea green texture, the Longquan celadon product that surface is more smooth, smooth.
Embodiment 6
By weight, preparation Longquan celadon blank oxide component is as follows: rare earth tailings 50% for S1, quartz 46%, calcined oxide aluminium powder 18%, calcined kaolin powder 31%, kaolin powder 12%, feldspar in powder 6%, calcium oxide 0.8%, Zijin soil 5%.Its middle rare earth tailings chemical constituent content is: SiO264.12%, Al2O325.63%, Fe2O33.9%, K2O3.4%, Na2O0.3%, CaO0.5%, MgO1.0%, TiO20.09%, I.L5.5%.
By weight percentage, the percentage by weight of Longquan celadon base raw material, water and additive is 59:36:4 to S2.Wherein, the composition adhesive starch of described additive is 7%, and plasticizer butyl stearate is 13%, and lubricant oleic acid is 24%, and dispersant Polyethylene Glycol is 4%.After base raw material, water and additive mix homogeneously, it is placed in ball mill ball milling to D10 > 0.06 μm, D90 is 0.35 ± 0.05 μm, after the fineness that D100 < is 3 μm, use the screen cloth of aperture 325 order, and the remove impurity that carries out sieving, old, form high-performance Longquan celadon base slip.
Slip filter pressing is formed pureed, deaeration after vacuum pugging is old by S3, then repeats vacuum pugging, then is dried by the Longquan celadon base substrate of molding, after microwave drying and hot air drying, carries out biscuiting at 700 DEG C of temperature, is incubated 1.5h.
S4 is after cooling, execute tradition Longquan celadon plum green glaze again, burn till at 1280 DEG C of temperature of reducing atmosphere, insulation 3h, heat treated heating rate is 2 DEG C/min, obtain into that porcelain intensity is high, bending and compressive strength is good, and texture is natural, texture is soft, third dimension is strong, have natural pea green texture, the Longquan celadon product that surface is more smooth, smooth.
The technology of the present invention advantage:
1, the present invention manufactures Longquan celadon with rare earth tailings for raw material, not only it is substantially reduced the production cost of Longquan celadon, and make full use of resource, reduce the harm to environment of the rare earth tailings, pass on rapidly the culture of the world's " non-something lost " Longquan celadon, propagate national cultural spirit, there is great economic and social benefit.Not only conform with the Strategic Demand of china natural resources regeneration, and meet the demand for development that following China construction of energy is intensive, environmental protection is social.
2, Longquan celadon prepared by the present invention becomes porcelain intensity height, (impact strength reaches 4.00KJ/m to consistency height2, rupture strength reaches more than 120Mpa, and heat stability can ensure that 200~20 DEG C of water-cooled exchanges are not once split), various model mobile phone can be met to material performance requirement.
3, manufacturing process of the present invention is simple, and cost of material low (can save more than 35%) is conducive to the production of energy-saving and emission-reduction and industrialization.
It is obvious to a person skilled in the art that the invention is not restricted to the details of above-mentioned one exemplary embodiment, and when without departing substantially from the spirit of the present invention or basic feature, it is possible to realize the present invention in other specific forms.Therefore, no matter from which point, embodiment all should be regarded as exemplary, and be nonrestrictive, the scope of the invention rather than described above limits, it is intended that all changes in claim equivalency implication and scope included in the present invention.
In addition, it is to be understood that, although this specification is been described by according to embodiment, but not each embodiment only comprises an independent technical scheme, this narrating mode of description is only for clarity sake, description should be made as a whole by those skilled in the art, and the technical scheme in each embodiment through appropriately combined, can also form other embodiments that it will be appreciated by those skilled in the art that.

Claims (10)

1. the Longquan celadon prepared for raw material with rare earth tailings, it is characterised in that include Longquan celadon base raw material, water and additive, percentage by weight is weight percentage 50~65:35~40:1~5.
2. a kind of Longquan celadon prepared for raw material with rare earth tailings according to claim 1, it is characterized in that, the raw material weight percentage ratio respectively rare earth tailings 15~75% of blank oxide in described Longquan celadon base raw material, quartz 30~65%, calcined oxide aluminium powder 10~30%, calcined kaolin powder 15~30%, kaolin powder 30~50%, feldspar in powder 2~10%, calcium oxide 1~3%, Zijin soil 1~8%;In Longquan celadon blank, additive consist of binding agent 2~7%, mould agent 5~15%, lubricant 21~25%, dispersant 1~5%.
3. a kind of Longquan celadon prepared for raw material with rare earth tailings according to claim 2, it is characterised in that described rare earth tailings chemical composition contains SiO250~85%, Al2O35~20%, Fe2O31.5~3.5%, K2O0.6~2.5%, Na2O0.2~2.0%, CaO0.1~0.3%, MgO0.1~1.0%, TiO20.1~0.5%, I.L2.0~5.0%, K2O+Na2O2~10%.
4. a kind of Longquan celadon prepared for raw material with rare earth tailings according to claim 2, it is characterised in that described binding agent be in carboxymethyl cellulose, polyvinyl alcohol, starch, glycerol one or more;Plasticizer is one or more in glycerol, acetic acid 2,2'-ethylenedioxybis(ethanol)., butyl stearate, Abalyn.;Lubricant is one or more in cellulose acetate, stearic acid, kerosene, microcrystalline wax, oleic acid;Dispersant is poly-methyl acrylamide (PMAA-NH4), ammonium chloride (NH4Cl), Polyethylene Glycol (mean molecule quantity is 10000), glycerol trioleate (GTO), one or more in Oleum Ricini (CTO).
5. a kind of Longquan celadon prepared for raw material with rare earth tailings according to claim 1, it is characterised in that the base raw material of described Longquan celadon is one or more in Huang Tanni, Pucheng mud, precious Xi Nihezhu township mud;The granularity of described Longquan celadon base raw material is below 325 mesh sieves.
6. the Longquan celadon manufacture method prepared for raw material with rare earth tailings, it is characterised in that comprise the following steps:
Base raw material and water are finely ground to all through 10000-hole sieve by S1 by mixing, and stir mixing 1~4h in batch mixer;Weigh base raw material, waterglass, sodium humate 5~8:0.3~1.0:0.45~0.65 carrying out slurry stirring mixing 3~4h by weight proportion, be subsequently adding additive and be stirred uniformly forming mud;
S2 carries out old after vacuum pugging, then repeats vacuum pugging, then is shaped;
The Longquan celadon base substrate of molding is dried by S3, after microwave drying and hot air drying, carries out biscuiting at 500~700 DEG C of temperature, is incubated 1~2h;
S4 after cooling, then execute tradition Longquan celadon green grass or young crops glaze layer 1~2mm, burn till at heat treatment temperature 1150~1300 DEG C under reducing atmosphere, heat treatment programming rate is 2~5 DEG C/min, be incubated 2~3h, it is thus achieved that a kind of be raw material with rare earth tailings Longquan celadon.
7. a kind of Longquan celadon manufacture method prepared for raw material with rare earth tailings according to claim 6, it is characterised in that in step S1: the addition of rare earth tailings is 1~5 times of celadon blank;The addition of additive is 1~3 times of celadon blank.
8. a kind of Longquan celadon manufacture method prepared for raw material with rare earth tailings according to claim 6, it is characterized in that, in step S1: described celadon batch mixtures ball milling is D10 > 0.06 μm to fineness, D90 is 0.35 ± 0.05 μm, D100 < 3 μm, and use the screen cloth of aperture≤1 μm to carry out sieving remove impurity, thus obtaining Longquan celadon blank slip.
9. a kind of Longquan celadon manufacture method prepared for raw material with rare earth tailings according to claim 6, it is characterised in that in step S2: slip fineness 325 order during slip is old;Tail over 0.3~0.6%;Slip moisture content 24~28%;Slip proportion 1.65~1.95%;Slurry flow rate 25~40 seconds.
10. a kind of Longquan celadon manufacture method prepared for raw material with rare earth tailings according to claim 6, it is characterised in that in step S4: the described Longquan celadon painted raw material of green grass or young crops glaze is Zijin soil, Fe2O3, one or more in FeO.
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