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Ceramic substrate, ceramic support, and separation membrane composite
A porous base material (31) for supporting a separation membrane (12) is provided with a plurality of coarse particles each of which is a ceramic particle having a particle size of 30 [mu] m or more, and a plurality of fine particles each of which is a ceramic particle having a particle size of 1 [mu] m or more but less than 30 [mu] m. The ratio of the number of the plurality of coarse grains to the number of the plurality of fine grains (i.e., coarse grain ratio) is 0.05-0.3. The average aspect ratio of the plurality of coarse grains is 1.5 or more and 2 or less. Consequently, the transmission resistance of the base material (31) can be reduced and the strength can be ensured at the same time.
用于支撑分离膜(12)的多孔质的基材(31)具备：分别为粒子尺寸30μm以上的陶瓷粒子的多个粗粒、以及分别为粒子尺寸1μm以上且小于30μm的陶瓷粒子的多个微粒。多个粗粒的个数相对于多个微粒的个数的比值(即粗粒比)为0.05以上且0.3以下。多个粗粒的平均纵横尺寸比为1.5以上且2以下。据此，能够同时实现减少基材(31)的透过阻力和确保强度。
Ceramic substrate, ceramic support, and separation membrane composite
A porous base material (31) for supporting a separation membrane (12) is provided with a plurality of coarse particles each of which is a ceramic particle having a particle size of 30 [mu] m or more, and a plurality of fine particles each of which is a ceramic particle having a particle size of 1 [mu] m or more but less than 30 [mu] m. The ratio of the number of the plurality of coarse grains to the number of the plurality of fine grains (i.e., coarse grain ratio) is 0.05-0.3. The average aspect ratio of the plurality of coarse grains is 1.5 or more and 2 or less. Consequently, the transmission resistance of the base material (31) can be reduced and the strength can be ensured at the same time.
用于支撑分离膜(12)的多孔质的基材(31)具备：分别为粒子尺寸30μm以上的陶瓷粒子的多个粗粒、以及分别为粒子尺寸1μm以上且小于30μm的陶瓷粒子的多个微粒。多个粗粒的个数相对于多个微粒的个数的比值(即粗粒比)为0.05以上且0.3以下。多个粗粒的平均纵横尺寸比为1.5以上且2以下。据此，能够同时实现减少基材(31)的透过阻力和确保强度。
Ceramic substrate, ceramic support, and separation membrane composite
陶瓷基材、陶瓷支撑体以及分离膜复合体
NAKANISHI TAKAHIRO (author) / NODA KENICHI (author) / KINOSHITA NAOTO (author) / AMANO NAO (author) / HIRANE KYOZUMI (author)
2024-09-20
Patent
Electronic Resource
Chinese
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