Method of improving the attrition resistance of V/SB oxide based catalyst
US5821192A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Sep 23, 1996 |
| Grant date | Oct 13, 1998 |
| Priority date | — |
| Expiry date | Sep 23, 2016 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB01J23/22
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A process for preparing a catalyst having the following formula: EQU V.sub.a Sb.sub.b M.sub.c O.sub.x PA1 wherein M=tin, titanium, lithium, sodium, potassium, molybdenum, tungsten, iron, chromium, cobalt, copper, gallium, niobium, tantalum, tellurium, bismuth, or mixtures thereof, PA1 a=0.1 to 5, preferably 0.1 to 3, most preferably 0.1 to 2 PA1 b=0.1 to 5, preferably 0.1 to 3, most preferably 0.1 to 2 PA1 c=0.0 to 5, preferably greater than 0 to 5, most preferably 0.01 to 3, and PA1 x is a number sufficient to satisfy the valency requirements of the elements, comprising forming an aqueous slurry comprising vanadium and antimony, adding a peptizing agent free of any lithium compounds capable of providing hydroxide ions to said slurry and spray drying said slurry to form an attrition resistant catalyst.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.