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| Number | Title | Issue Date |
| 7247598 | Nano-scale magnetic solid base catalyst and its preparation method This invention describes a nano-scale magnetic solid base catalyst and its preparation method. The catalyst involves a magnetic core coated with a solid base active layer. The synthesis of the nano-scale magnetic cores was first carried out using a rapid nucleation ... | 07/24/2007 |
| 3931351 | Modification of iron and barium ferrite catalysts Catalysts comprising ferrites of iron modified with oxides of cerium, zinc, manganese and lead and ferrites of barium modified with oxides of zinc, manganese and lead and a process of oxidative dehydrogenation of organic compounds in the presence of these... | 01/06/1976 |
