Catalyst – solid sorbent – or support therefor: product or process – Catalyst or precursor therefor – Metal – metal oxide or metal hydroxide
Reexamination Certificate
2008-05-20
2008-05-20
Johnson, Edward M. (Department: 1793)
Catalyst, solid sorbent, or support therefor: product or process
Catalyst or precursor therefor
Metal, metal oxide or metal hydroxide
Reexamination Certificate
active
10306874
ABSTRACT:
A process for preparing a cobalt based catalyst precursor includes in a first support impregnation/drying/calcination stage, impregnating a particulate porous catalyst support with a cobalt salt, partially drying the impregnated support, and calcining the partially dried impregnated support to obtain a calcined material. The calcined material is partially reduced. Thereafter, in a second support impregnation/drying/calcination stage, the partially reduced material is impregnated with a cobalt salt, partially dried and calcined, to obtain the cobalt based catalyst precursor.
REFERENCES:
patent: 4120826 (1978-10-01), Ebel et al.
patent: 4402865 (1983-09-01), Blakely
patent: 5733839 (1998-03-01), Espinoza et al.
patent: 5817595 (1998-10-01), Tejada et al.
patent: 5856365 (1999-01-01), Zennaro et al.
patent: 6080699 (2000-06-01), Pohl
patent: 6130184 (2000-10-01), Geerlings et al.
patent: 6262132 (2001-07-01), Singleton et al.
patent: 6455462 (2002-09-01), Van Berge et al.
patent: 0681868 (1995-11-01), None
patent: 99/42214 (1999-08-01), None
patent: 0020116 (2000-04-01), None
patent: 01/39882 (2001-06-01), None
Knözinger, H. and P. Ratnasamy. “Catalytic Aluminas: Surface Models and Characterization of Surface Sites”,Catal. Rev. -Sci. Eng., (1978), 17(1): 31-70. Presented at the Fifth North American Meeting of the Catalysis Society, Pittsburgh, 1977.
Loosdrecht Jan Van De
Van Berge Peter Jacobus
Visagie Jacobus Lucas
(Sasol Technology (Proprietary) Limited)
Johnson Edward M.
Ladas & Parry LLP
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