Magnesium-aluminum-phosphorus-silicon-oxide molecular sieve compositions
US4758419A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Apr 13, 1984 |
| Grant date | Jul 19, 1988 |
| Priority date | — |
| Expiry date | Apr 13, 2004 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S423/30
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
Crystalline molecular sieves having a three-dimensional microporous framework structures of MgO.sub.2, AlO.sub.2, SiO.sub.2 and PO.sub.2 tetrahedral units are disclosed. These molecular sieves have an empirical chemical composition on an anhydrous basis expressed by the formula: EQU mR:(Mg.sub.w Al.sub.x P.sub.y Si.sub.z)O.sub.2 wherein "R" represents at least one organic templating agent present in the intracrystalline pore system; "m" represents the molar amount of "R" present per mole of (Mg.sub.w Al.sub.x P.sub.y Si.sub.z)O.sub.2 ; and "w", "x", "y" and "z" represent the mole fractions of magnesium, aluminum, phosphorus and silicon, respectively, present as tetrahedral oxides. Their use as adsorbents, catalysts, etc. is disclosed.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.