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题名: Synthesis and properties of A-type zeolite membranes by secondary growth method with vacuum seeding
作者: Huang, AS;  Lin, YS;  Yang, WS
关键词: A-type zeolite membrane ;  coating ;  hydrothermal synthesis ;  pervaporation ;  vacuum seeding
刊名: JOURNAL OF MEMBRANE SCIENCE
发表日期: 2004-12-01
DOI: 10.1016/j.memsci.2004.08.001
卷: 245, 期:1-2, 页:41-51
收录类别: SCI
文章类型: Article
项目归属: 504
产权排名: 1;1
WOS标题词: Science & Technology ;  Technology ;  Physical Sciences
类目[WOS]: Engineering, Chemical ;  Polymer Science
研究领域[WOS]: Engineering ;  Polymer Science
英文摘要: A-type zeolite membranes were successfully synthesized on tubular alpha-Al2O3 supports by secondary growth method with vacuum seeding In the seeding process, a thin, uniform and continuous seeding layer was closely attached to the support surface by the pressure difference between the two sides of the support wall. The effects of seed particle size, suspension concentration, coating pressure difference and coating time on the membrane and its pervaporation properties were investigated. The as-synthesized membranes were characterized by XRD and SEM. The quality of the membranes was evaluated by the pervaporation dehydration of 95 wt. % isopropanol/water mixture at 343 K. High quality A-type zeolite membranes can be reproducibly prepared by the secondary growth method with vacuum seeding under the conditions: seed particle size of 500-1200 nm, suspension concentration of 4-8 g/l, coating pressure difference of 0.0100-0.0250 MPa and coating time of 45-180 s. (C) 2004 Elsevier B.V. All rights reserved.
关键词[WOS]: MOLECULAR-SIEVE FILMS ;  SEEDED GROWTH ;  ZSM-5 ;  MFI ;  SUSPENSIONS ;  SEPARATION
语种: 英语
原文出处: 查看原文
WOS记录号: WOS:000225232600003
Citation statistics: 
内容类型: 期刊论文
URI标识: http://cas-ir.dicp.ac.cn/handle/321008/81787
Appears in Collections:中国科学院大连化学物理研究所_期刊论文

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作者单位: 1.Chinese Acad Sci, Dalian Inst Chem Phys, State Key Lab Catalysis, Dalian 116023, Peoples R China

Recommended Citation:
Huang, AS,Lin, YS,Yang, WS. Synthesis and properties of A-type zeolite membranes by secondary growth method with vacuum seeding[J]. JOURNAL OF MEMBRANE SCIENCE,2004,245(1-2):41-51.
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