Crystalline microporous metallo-zinc phosphate compositions
US5302362A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Apr 10, 1992 |
| Grant date | Apr 12, 1994 |
| Priority date | — |
| Expiry date | Apr 10, 2012 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC01B37/065
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
A new class of microporous compositions are described along with a process for preparing them and processes for using them. These compositions have a three-dimensional microporous framework structure of ZnO.sub.2, PO.sub.2 and M'O.sub.2 tetrahedral units, and an intracrystalline pore system. The M' metal is selected from the group consisting of magnesium, copper, gallium, aluminum, germanium, cobalt, chromium, iron, manganese, titanium and mixtures thereof. These molecular sieves are prepared by hydrothermal crystallization of a reaction mixture containing reactive sources of phosphorus, zinc, one or more M' metal, at least one alkali metal and water. This invention also relates to processes using these molecular sieves.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.