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Vapor phase carbonylation of dimethyl ether and methyl acetate with supported transition metal catalysts

Conference · · Am. Chem. Soc., Div. Pet. Chem., Prepr.; (United States)
OSTI ID:5282147
The synthesis of acetic acid (AcOH) from methanol (MeOH) and carbon monoxide has been performed industrially in the liquid phase using a rhodium complex catalyst and an iodide promoter. The selectivity to AcOH is more than 99% under mild conditions (175/sup 0/C, 28 atm). The homogeneous rhodium catalyst has been also effective for the synthesis of acetic anhydride (Ac/sub 2/O) by carbonylation of dimethyl ether (DME) or methyl acetate (AcOMe). However, rhodium is one of the most expensive metals and its proved reserves are quite limited. It is highly desired, therefore, to develop a new catalyst as a substitute for rhodium. The authors have already reported that nickel supported on active carbon exhibits an excellent activity for the vapor phase carbonylation of MeOh in the presence of iodide promoter and under moderately pressurized conditions. In addition, corrosive attack on reactors by iodide compounds is expected to be negligible in the vapor phase system. In the present work, vapor phase carbonylation of DME and AcOMe on nickel-active carbon (Ni/A.C.) and molybdenum-active carbon (Mo/A.C.) catalysts was studied.
Research Organization:
Dept. of Synthetic Chemistry, Univ. of Tokyo, Hongo, Bunkyo-ku, Tokyo 113
OSTI ID:
5282147
Report Number(s):
CONF-860425-
Conference Information:
Journal Name: Am. Chem. Soc., Div. Pet. Chem., Prepr.; (United States) Journal Volume: 31:1
Country of Publication:
United States
Language:
English