Organic compounds -- part of the class 532-570 series – Organic compounds – Carboxylic acid esters
Patent
1996-06-12
1998-06-02
Killos, Paul J.
Organic compounds -- part of the class 532-570 series
Organic compounds
Carboxylic acid esters
562519, 562520, 562517, C07C 6736, C07C 5112
Patent
active
057602794
ABSTRACT:
The use of manganese at a molar ratio of manganese:rhodium of (0.2 to 20):1 to stabilize the rhodium catalyst during the rhodium catalyzed carbonylation of alkyl alcohols and/or recovery of carbonylation product therefrom at low partial pressure of carbon monoxide of less than or equal to 7 bar.
REFERENCES:
patent: 3769329 (1973-10-01), Paulik et al.
patent: 4994608 (1991-02-01), Torrence et al.
patent: 5001259 (1991-03-01), Smith et al.
patent: 5214203 (1993-05-01), Koyama et al.
"The Rhodium-Catalyzed Methanol Carbonylation to Acetic Acid at Low Water Concentrations: The Effect of Iodide and Acetate on Catalyst Activity and Stability"; Journal of Molecular Catalysts; B. L. Smith et al.; vol. 39, pp. 115-136; .COPYRGT.1987.
"Photo-, Electro-, and Thermal Carbonylation of Alkyl Iodides in the Presence of Group 7 and 8-10 Metal Carbonyl Catalysts"; Journal of Organometallic Chemistry; T. Kondo et al.; vol. 473, pp. 163-173; .COPYRGT.1994.
"Activity of the Catalyst RhNaX, Promoted by Some Transition Metal Oxides, in the Carbonylation of Methanol with Carbon Monoxide at Atmospheric Pressure"; Aliphatics; B. K. Nefedov et al.; vol. 90, pp. 555; .COPYRGT.1979.
BP Chemicals Limited
Keys Rosalynd
Killos Paul J.
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