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Ultralow heavy metal dissolution and low radioactive meteorite ceramic and preparation method of ultralow heavy metal dissolution and low radioactive meteorite ceramic

A low-radioactive, ceramic preparation technology, applied in the field of ceramics, to achieve the effects of ultra-low heavy metal dissolution and low radioactivity, high firing rate and safe use

Active Publication Date: 2018-01-16
北京中科极地抗衰老技术研究院(有限合伙)
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Especially when the temperature of food and water is relatively high and there is a certain degree of acidity, such as vinegar in tableware, lead and cadmium ions are more likely to dissolve. As food and water enter the human body, china clay also contains metals such as lead, cadmium and iron. These metal components Not intentionally added, but natural, unavoidable

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] S1: Material selection and grinding: Prepare raw materials according to the following components: achondrite calcareous meteorite, purple sand, clay; grind achondrite calcareous meteorite into 200-mesh powder, purple sand into 200-mesh powder, and clay into 200-mesh powder purpose powder;

[0028] S2: pulping: all three kinds of raw materials in step S1 are dried, weigh 0.3g of achondrite calcareous meteorite, 95g of purple sand, 4.7g of clay, fully mix, add 20g of water for pulping, Zn content in the water for pulping is Above 0.7mg / L, β radioactivity is less than 0.03Bq / L;

[0029] S3: Practicing mud: repeatedly kneading, beating and extruding the mixed material after pulping described in step S2 until the cross section of the mud material is shiny;

[0030] S4: stale: put the mixture obtained in step S3 into a closed stainless steel container and let it stand for 3 months;

[0031] S5: Refining mud: kneading, beating and extruding the mixed material obtained in ste...

Embodiment 2

[0038] S1: Material selection and grinding: Prepare raw materials according to the following components: achondrite calcareous meteorite, purple sand, clay; grind achondrite calcareous meteorite into 250-mesh powder, purple sand into 300-mesh powder, and clay into 200-mesh powder purpose powder;

[0039] S2: Mixing: Dry the three raw materials in step S1, weigh 43g of achondrite calcareous meteorite, 56g of purple sand, and 1.0g of clay, mix them well, add 20g of water to mix, and the Zn content in the mixing water is 0.7 Above mg / L, β radioactivity is less than 0.03Bq / L;

[0040] S3: Practicing mud: repeatedly kneading, beating and extruding the mixed material after pulping described in step S2 until the cross section of the mud material is shiny;

[0041] S4: stale: put the mixture obtained in step S3 into a closed porcelain container and let it stand for 5 months;

[0042] S5: Refining mud: kneading, beating and extruding the mixed material obtained in step S4 again;

[...

Embodiment 3

[0049] S1: Material selection and grinding: Prepare raw materials according to the following components: achondrite calcareous meteorite, purple sand, clay; grind achondrite calcareous meteorite into 300-mesh powder, purple sand into 300-mesh powder, and clay into 300-mesh powder purpose powder;

[0050] S2: Mixing: Dry the three raw materials in step S1, weigh 30g of achondrite calcareous meteorite, 65g of purple sand, and 5.0g of clay, mix them well, add 20g of water for mixing, and the Zn content in the mixing water is 0.7 Above mg / L, β radioactivity is less than 0.03Bq / L;

[0051] S3: Practicing mud: repeatedly kneading, beating and extruding the mixed material after pulping described in step S2 until the cross section of the mud material is shiny;

[0052] S4: stale: put the mixture obtained in step S3 into a closed stainless steel container and let it stand for 4 months;

[0053] S5: Refining mud: kneading, beating and extruding the mixed material obtained in step S4 a...

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Abstract

The invention discloses an ultralow heavy metal dissolution and low radioactive meteorite ceramic and a preparation method of the ultralow heavy metal dissolution and low radioactive meteorite ceramic. The ultralow heavy metal dissolution and low radioactive meteorite ceramic is prepared from the following components of 0.3-43% of spherulite-free calcium meteorite, 56-95% of purple sand, and 1-5%of clay by mass percent through the steps of selecting the materials, grinding, mixing, pugging, fossilizing, pugging back, forming, drying, bisque-firing and sintering, a processed composite ceramichas the advantages of high sintering rate, ultralow heavy metal dissolution and low radioactive level, is safer to use due to the ultralow heavy metal dissolution and the low radioactive level, the secondary treatment does not pollute the environment even if the ceramic is broken.

Description

technical field [0001] The invention relates to the technical field of ceramics, in particular to a meteorite ceramic with ultra-low heavy metal dissolution and low radioactivity and a preparation method thereof. Background technique [0002] There are many pottery materials, and pottery that comes into contact with food (including water and beverages) contains heavy metals that can be dissolved. Ceramic tableware, tea sets, and coffee sets that people use almost every day often contain leached lead and cadmium. Especially when the temperature of food and water is relatively high and there is a certain degree of acidity, such as vinegar in tableware, lead and cadmium ions are more likely to dissolve. As food and water enter the human body, china clay also contains metals such as lead, cadmium and iron. These metal components It is not added on purpose, but exists naturally and cannot be avoided. At the same time, the application of meteorites in ceramic materials is stil...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B33/13C04B33/30C04B33/32
Inventor 冯天冯瑞祥
Owner 北京中科极地抗衰老技术研究院(有限合伙)
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