Method for preparing acetic acid and or methyl acetate in...

Details Method for preparing acetic acid and or methyl acetate in... Method for preparing acetic acid and or methyl acetate in...

2005-07-12

2005-07-12

Richter, Johann (Department: 1621)

Organic compounds -- part of the class 532-570 series

Organic compounds

Carboxylic acid esters

C562S519000

Reexamination Certificate

active

06916952

ABSTRACT:
The invention relates to a process for the preparation of acetic acid and/or methyl acetate in the liquid phase by the carbonylation of methanol and/or the isomerization of methyl formate in the presence of water, a solvent, a homogeneous catalyst system comprising iridium and a halogen-containing promoter, and carbon monoxide, wherein said catalyst system also comprises platinum.

REFERENCES:
patent: 2750985 (1998-01-01), None
patent: 1234641 (1971-06-01), None
patent: 9735828 (1997-10-01), None
patent: 9833759 (1998-08-01), None

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