Catalyst extrudates based on copper oxide and their use for...

Organic compounds -- part of the class 532-570 series – Organic compounds – Heterocyclic carbon compounds containing a hetero ring...

Reexamination Certificate

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Reexamination Certificate

active

07459571

ABSTRACT:
Catalyst in the form of an extrudate which comprises from 5 to 85% by weight of copper oxide and in which the same oxidic support material is present in the active composition and as binder, and the use of the catalyst for the hydrogenation of carbonyl compounds.

REFERENCES:
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patent: 4666879 (1987-05-01), Kelly et al.
patent: 2002/0145226 (2002-10-01), Hesse et al.
patent: 2 332 906 (1974-04-01), None
patent: 1 228 803 (2002-08-01), None
patent: 97/34694 (1997-09-01), None
patent: WO 97/34694 (1997-09-01), None
Muller et al (Journal of Catalysis (2003) 218, 419-426).
Mueller, Steffen Peter et al., “Extrusion of Cu/ZnO catalysts for the single-stage gas-phase processing of dimethyl maleate to tetrahydrofuran”, Journal of Catalysis, vol. 218, pp. 419-426, 2003.

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