Method for the continuous hydroformylation of polyakenes...

Organic compounds -- part of the class 532-570 series – Organic compounds – Oxygen containing

Reexamination Certificate

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C568S444000, C568S456000, C585S706000, C585S901000

Reexamination Certificate

active

06849769

ABSTRACT:
Essentially monounsaturated polyalkylenes having from 30 to 700 carbon atoms are continuously hydroformylated by a process in which i) a hydroformylation-active cobalt carbonyl catalyst is prepared from a catalyst precursor dissolved in an aqueous phase in the absence of the polyalkylenes, ii) the polyalkylenes are hydroformylated by means of synthesis gas in the presence of the cobalt carbonyl catalyst in a reaction zone, iii) the cobalt carbonyl catalyst is separated from the output from the reaction zone with at least partial reformation of the catalyst precursor and the catalyst precursor is recirculated to step i).

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patent: 6331656 (2001-12-01), Blankertz et al.
patent: 9005711 (1990-05-01), None
patent: WO 9005711 (1990-05-01), None
patent: 9524431 (1995-09-01), None
M.DiSerio et al., J.Mol.Cat. 69 (1991) 1-14.

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