Method for producing a crystalline film of zeolite and/or zeolite like crystals on a porous substrate
US10682626B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 14, 2014 |
| Grant date | Jun 16, 2020 |
| Priority date | — |
| Expiry date | Mar 14, 2034 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB01J2229/64
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
The invention concerns a method for producing a crystalline film comprising zeolite and/or zeolite-like crystals on a porous substrate The method includes the steps of: a) providing a porous substrate, b) rendering at least a part of said porous substrate hydrophobic by treatment with a composition comprising one or more hydrophobic agent(s), d) subjecting said treated porous substrate to a composition comprising zeolite and/or zeolite-like crystals thereby depositing and attaching zeolite and/or zeolite-like crystals on said treated porous substrate, and e) growing a crystalline film comprising zeolite and/or zeolite-like crystals on said treated porous substrate obtained in step d). Crystalline films find use in a variety of fields such as in the production of membranes, catalysts etc.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.