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A platform for research: civil engineering, architecture and urbanism
FIRING CLAY COMPOSITION, FIRING CLAY MODIFICATION ADDITIVE, AND MANUFACTURING METHOD FOR FIRING CLAY COMPOSITION AND FIRING CLAY PRODUCT
To provide a firing clay composition that can suppress the formation of cristobalite in firing by effectively utilizing an aluminosilicate waste material.SOLUTION: In a firing clay composition that is modified by adding an aluminosilicate waste material with refractoriness of SK20 or more, the quantity of a specific metal cation in the firing clay composition is controlled by further adding a metal cation source containing the specific metal cation in addition to the specific metal cation in the aluminosilicate waste material, or selecting clay that contains a comparatively large quantity of soluble mineral, and thereby suppressing the formation of cristobalite in firing of the aluminosilicate waste material, and obtaining the firing clay composition with improved refractoriness.SELECTED DRAWING: Figure 1
【課題】アルミノケイ酸塩廃材料を有効活用して、焼成中のクリストバライトの生成を抑制できる焼成用粘土組成物の提供。【解決手段】耐火度がＳＫ２０以上であるアルミノケイ酸塩廃材料を添加して改質した焼成用粘土組成物において、該アルミノケイ酸塩廃材料中の特定金属カチオンに加えて、特定金属カチオンを含む金属カチオン源を更に添加する、あるいは熔剤性鉱物を比較的多く含む粘土を選択することにより、焼成用粘土組成物中の特定金属カチオン量を制御し、もって前記アルミノケイ酸塩廃材料の焼成中のクリストバライトの生成を抑制することができ、耐火度を向上させた焼成用粘土組成物を得られる。【選択図】図１
FIRING CLAY COMPOSITION, FIRING CLAY MODIFICATION ADDITIVE, AND MANUFACTURING METHOD FOR FIRING CLAY COMPOSITION AND FIRING CLAY PRODUCT
To provide a firing clay composition that can suppress the formation of cristobalite in firing by effectively utilizing an aluminosilicate waste material.SOLUTION: In a firing clay composition that is modified by adding an aluminosilicate waste material with refractoriness of SK20 or more, the quantity of a specific metal cation in the firing clay composition is controlled by further adding a metal cation source containing the specific metal cation in addition to the specific metal cation in the aluminosilicate waste material, or selecting clay that contains a comparatively large quantity of soluble mineral, and thereby suppressing the formation of cristobalite in firing of the aluminosilicate waste material, and obtaining the firing clay composition with improved refractoriness.SELECTED DRAWING: Figure 1
【課題】アルミノケイ酸塩廃材料を有効活用して、焼成中のクリストバライトの生成を抑制できる焼成用粘土組成物の提供。【解決手段】耐火度がＳＫ２０以上であるアルミノケイ酸塩廃材料を添加して改質した焼成用粘土組成物において、該アルミノケイ酸塩廃材料中の特定金属カチオンに加えて、特定金属カチオンを含む金属カチオン源を更に添加する、あるいは熔剤性鉱物を比較的多く含む粘土を選択することにより、焼成用粘土組成物中の特定金属カチオン量を制御し、もって前記アルミノケイ酸塩廃材料の焼成中のクリストバライトの生成を抑制することができ、耐火度を向上させた焼成用粘土組成物を得られる。【選択図】図１
FIRING CLAY COMPOSITION, FIRING CLAY MODIFICATION ADDITIVE, AND MANUFACTURING METHOD FOR FIRING CLAY COMPOSITION AND FIRING CLAY PRODUCT
焼成用粘土組成物、焼成用粘土改質添加材、並びに焼成用粘土組成物及び焼成粘土製品の製造方法
EGI TOSHIO (author) / YOSHIOKA HISASHI (author) / SAITO JUNICHIRO (author) / NAGASHIMA SHUICHIRO (author)
2019-08-22
Patent
Electronic Resource
Japanese
Chemical changes in clay and clay-lime mixtures on firing
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