陶瓷支撑体、沸石膜复合体、沸石膜复合体的制造方法以及分离方法

• Format: Patent
• Language: Chinese
• Published: 04.11.2022
• Subjects: ARTIFICIAL STONE; CEMENTS; CERAMICS; CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOIDCHEMISTRY; CHEMISTRY; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDINGMATERIALS; COMPOUNDS THEREOF; CONCRETE; INORGANIC CHEMISTRY; LIME, MAGNESIA; METALLURGY; NON-METALLIC ELEMENTS; PERFORMING OPERATIONS; PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL; REFRACTORIES; SEPARATION; SLAG; THEIR RELEVANT APPARATUS; TRANSPORTING; TREATMENT OF NATURAL STONE

支撑体(11)为沸石膜支撑用的多孔质的陶瓷支撑体。支撑体(11)的透水系数为1.1×10－3m/s以下。在支撑体(11)的与表面(114)垂直的深度方向上，自表面(114)起算30μm以内的表层部(116)中的碱金属及碱土金属的合计含有率为1重量％以下。由此，能够抑制沸石膜(12)中发生异常。 A support is a porous ceramic support for supporting a zeolite membrane. The hydraulic conductivity of the support is less than or equal to 1.1×10−3 m/s. In the support, the total content of alkali metal and alkaline earth metal in a surface part within 30 μm from a surface in a depth direction perpendicular to the surface is less than or equal to 1% by weight.