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Methods for Fabricating Zeolite Micromembranes

总结: Zeolites are microporous crystalline aluminosilicate molecular sieve that have pore sizes ranging from about 0.3 to 1 mm. Due to their uniform, molecular-sized pores, they can separate molecules based on their size, shape and polarity. They can therefore act as ''molecular sieves''. Membranes made of zeolites and molecular sieve possess good thermal and chemical stabilty, and thus have a number of practical applications.

This inventionintroduces a new preparation method for zeolite and molecular sieve micromembranes with excellent mechanical, thermal and separation properties( gas-gas, gas-liquid, vapour-liquid, liquid-liquid, ion-transport), a new preparation method for three dimensionzeolite membrane enclosed microchannel structure. It also claims a new method for low temperature removal of organic templates for activation of micromembrane and a new method for re-activating fouled membranes.

技术优势: 1. Allows the fabrication of inorganic zeolite and molecular membranes without causing crack and defect formations
2. Mechanically, thermally, chemically stable
3. New membrane architecture
4. New technology was employed

技术应用: - Membrane microseparator for gas-gas, gas-liquid, vapour-liquid, liquid-liquid separations in microsystem
- Proton transport membrane for microfuel cell
- Membrane for chemical, electrochemical and biological sensors
- Drug delivery device

附加资料: Patent Number: US7494610B2
Application Number: US2005216330A
Inventor: Yeung, King Lun | Lam, Koon Fung | Heng, Samuel | Chau, Lik Hang Joseph
Priority Date: 30 Aug 2005
Priority Number: US7494610B2
Application Date: 30 Aug 2005
Publication Date: 24 Feb 2009
IPC Current: B29C006500 | B01J002904 | B29C004792 | C01G002300
US Class: 264042 | 055523 | 21050025 | 264048 | 423705 | 501004 | 501033 | 502085 | 055223
Assignee Applicant: The Hong Kong University of Science & Technology
Title: Methods for fabricating zeolite micromembranes
Usefulness: Methods for fabricating zeolite micromembranes
Summary: For activating a zeolite membrane useful in the separation of gases and liquids and as selective barriers for sensors.
Novelty: Zeolite membrane activation for, e.g. separating gases and liquid, involves placing the membrane in contact with fluid mixture containing ozone and having specified temperature when the mixture is in gaseous or liquid

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