Preparation of layered zirconium phosphite sulfophenylphosphonates and their use as a catalyst
US5616749A · kind A · utility
3Cited by
2References
10Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 27, 1994 |
| Grant date | Apr 1, 1997 |
| Priority date | — |
| Expiry date | Sep 27, 2014 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB01J2540/32
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
The present invention provides zirconium phosphite sulfophenylphosphonates having the following formula EQU Zr(HPO.sub.3).sub.m (HPO.sub.4).sub.n (PO.sub.3 C.sub.6 H.sub.5).sub.y (PO.sub.3 C.sub.6 H.sub.4 SO.sub.3 H).sub.z wherein m+n=x; x+y+z=2; 0.4.ltoreq.x.ltoreq.1.7; 0.ltoreq.y.ltoreq.1.6; and 0.01.ltoreq.z.ltoreq.0.8. The present invention also discloses a method of preparing these zirconium phosphite sulfophenylphosphonates and their use as a catalyst.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.