Catalysts

Details Catalysts Catalysts

2005-05-10

2010-02-02

Mayes, Melvin C (Department: 1793)

Catalyst, solid sorbent, or support therefor: product or process

Catalyst or precursor therefor

Inorganic carbon containing

C502S063000, C502S071000, C502S075000, C502S077000, C502S084000, C502S260000, C502S327000, C502S245000, C502S247000, C502S309000

Reexamination Certificate

active

07655593

ABSTRACT:
A method of manufacturing a cobalt catalyst is described, which comprises the steps of forming an aqueous solution of a cobalt amine complex, oxidising said solution such that the concentration of Co(III) in the oxidised solution is greater than the concentration of Co(III) in the un-oxidized solution, and then decomposing the cobalt amine complex by heating the solution to a temperature between 80 and 110° C. for sufficient time to allow an insoluble cobalt compound to precipitate out of the solution. A catalyst intermediate is also described which comprises a cobalt compound, comprising a Co(II)/Co(III) hydrotalcite phase and a CO3O4cobalt spine) phase, wherein the ratio of cobalt hydrotalcite phase: cobalt spine) phase is less than 0.6:1, said cobalt hydrotalcite phase and said cobalt spine) phase being measured by X-ray diffractometry.

REFERENCES:
patent: 3235515 (1966-02-01), Taylor
patent: 4029601 (1977-06-01), Wiese
patent: 5874381 (1999-02-01), Bonne et al.
patent: 7452844 (2008-11-01), Hu et al.
patent: WO-01/87480 (2001-11-01), None
patent: WO-02/089978 (2002-11-01), None
Wang, Xin-Xi et al., “Studies on the Nanocrystalline Co3O4Through Wet Synthesis and Its Microstructure,”Acta Chimica Sinica, vol. 61, No. 11, 2003, pp. 1849-1853.
Operator's Manual for the Micromeritics ASAP 2010 Chemi System, V2.01, Appendix C, Part No. 201-42808-01, Oct. 1996.
R. W. Lines, J. G. Harfield, W. D. Griffiths, A. P. Rood and M. Alderliesten, “Standardisation in particle sizing,” Anal. Proc., vol. 21, Issue 5, 1984, pp. 159-172.
Robert C. Reuel and Calvin H. Bartholomew, “The Stoichiometries of H2and CO Adsorptions on Cobalt: Effects of Support and Preparation,”Journal of Catalysis, vol. 85, 1984, pp. 63-77.

Affiliated with

Also associated with

Rating

Catalysts does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Catalysts, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Catalysts will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-4181405