Process for the production of zeolite membranes supported on porous glass and a zeolite membrane so produced
US6197427A · kind A · utility
8Cited by
5References
38Claims
0Family size
Assignee
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Key dates
| Filing date | Dec 6, 1996 |
| Grant date | Mar 6, 2001 |
| Priority date | — |
| Expiry date | Dec 6, 2016 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB01D2323/082
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A process for the production of a composite membrane constituted by a continuous zeolite layer which is principally located on the surface of a glass support is described. The process comprises, in succession, at least one step in which partial hydrolysis of the silica of the internal and external surfaces of the porous support is carried out, and a zeolite crystallization step. The supported zeolite membranes obtained are advantageously used in continuous separation processes.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.