Methods of making high activity transition metal catalysts
US4491639A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Sep 30, 1982 |
| Grant date | Jan 1, 1985 |
| Priority date | — |
| Expiry date | Sep 30, 2002 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB01J27/02
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
Disclosed is a process which comprises calcining an intimate mixture of elemental sulfur and compounds of the other elements in the following empirical atomic formula and further treating the resulting mass to obtain the new catalyst: EQU XY.sub.a Z.sub.b S.sub.c O.sub.d wherein: PA0 X is a transition element or a mixture thereof selected from the group V, Mo, W; PA0 Y is a stability enhancing element or a mixture thereof selected from the group C, Si, B, Ce, Th, Nb, Zr, Ta, U, where "a" can vary from 0 to 2; PA0 Z is a promoter element or a mixture thereof selected from the group Co, Ni, Fe, where "b" can vary from 0 to 0.1; PA0 S is the element sulfur, where "c" can vary from 1.3 to 6.0; PA0 O is the element oxygen, where "d" can vary from 0 to the upper limit required by stoichiometry.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.