Methods to produce molecular sieves with LTA topology and compositions derived therefrom
US9821297B2 · kind B2 · utility
3Cited by
3References
30Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 8, 2016 |
| Grant date | Nov 21, 2017 |
| Priority date | — |
| Expiry date | Mar 8, 2036 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02P30/40
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
The present disclosure is directed to processing for preparing crystalline pure-silica and heteroatom-substituted LTA frameworks in fluoride media using a simple organic structure-directing agent (OSDA), having a structure of Formula (I):where substituents R1 to R9 are defined herein. Aluminosilicate LTA is an active catalyst for the methanol to olefins reaction with higher product selectivities to butenes as well as C5 and C6 products than the commercialized catalysts. Titanosilicate LTA is an active catalyst for the epoxidation of allyl alcohol using aqueous H2O2.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.