Preparation and use of non-chrome catalysts for Cu/Cr catalyst applications
US6455464B1 · kind B1 · utility
Assignee
Inventor
Key dates
| Filing date | Sep 18, 1998 |
| Grant date | Sep 24, 2002 |
| Priority date | — |
| Expiry date | Sep 18, 2018 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02P20/52
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A non-chrome, copper-containing catalyst, Cu—Al—O and method of preparing the same are provided wherein the Cu—Al—O catalyst is prepared by the co-precipitation of copper nitrate (Cu(NO3)2) and sodium aluminate (Na2Al2O4) solutions using sodium carbonate (Na2CO3) as a precipitant. the precipitate is filtered, washed to remove excess sodium, and dried. The dried product, to be used in a powder form, is calcined at a preferred temperature of approximately 700 to 900° C. for approximately 1 to 4 hours. The dry powder, to be tableted or extruded, is calcined at a temperature of approximately 400 to 700° C. The activity of the Cu—Al—O catalyst can be promoted in hydrogenolysis applications by the addition of various agents. The Cu—Al—O catalyst can be employed in applications in place of Cu/Cr, or other copper-based catalysts.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.