Mixed manganese ferrite catalysts, method of preparing thereof and method of preparing 1,3-butadiene using thereof
US8674156B2 · kind B2 · utility
Assignees
Inventors
Key dates
| Filing date | Nov 7, 2008 |
| Grant date | Mar 18, 2014 |
| Priority date | — |
| Expiry date | Feb 6, 2030 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07C2523/889
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A method of producing a mixed manganese ferrite catalyst, and a method of preparing 1,3-butadiene using the mixed manganese ferrite catalyst. Specifically, a method of producing a mixed manganese ferrite catalyst through a coprecipitation method which is performed at a temperature of 10˜40° C., and a method of preparing 1,3-butadiene using the mixed manganese ferrite catalyst through an oxidative dehydrogenation reaction, in which a C4 mixture containing n-butene, n-butane and other impurities is directly used as reactants without performing additional n-butane separation process or n-butene extraction. 1,3-butadiene can be prepared directly using a C4 mixture including n-butane at a high concentration as a reactant through an oxidative hydrogenation reaction without performing an additional n-butane separation process, and 1,3-butadiene, having high activity, can be also obtained in high yield for a long period of time.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.