Sulfur-containing palladium-carbon catalyst and method for preparing and using the same
US9248443B2 · kind B2 · utility
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31Claims
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Key dates
| Filing date | Jul 13, 2012 |
| Grant date | Feb 2, 2016 |
| Priority date | — |
| Expiry date | Jul 13, 2032 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB01J2531/824
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A sulfur-containing palladium-carbon catalyst prepared by loading palladium on an active carbon, mixing the palladium-carbon catalyst with a solvent to form a slurry, adding a sulfide to the slurry to treat the loaded palladium under a predetermined temperature, and removing liquid and drying to obtain the catalyst. The sulfur-containing palladium-carbon catalyst is suitable for making phenylene diamine rubber antioxidant with improved productivity and selectivity.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.