Carbonylation of ethanol using Ni-isoquinoline complex catalyst: Activity and selectivity studies

✍ Scribed by R.S. Ubale; A.A. Kelkar; R.V. Chaudhari

• Book ID: 104423144
• Publisher: Elsevier Science
• Year: 1997
• Tongue: English
• Weight: 922 KB
• Volume: 118
• Category: Article
• ISSN: 1381-1169
• DOI: 10.1016/s1381-1169(96)00136-7

✦ Synopsis

The carbonylation of ethanol using NiCl, 6H,O/isoquinoline catalyst system and aqueous HI as a promoter has been investigated.

Effect of catalyst, ethanol and HI concentration, temperature, partial pressures of CO and H,, N-or P-containing ligands and co-catalysts on the activity and selectivity has been studied. The Ni catalysts were found to be active only in the presence of N-or P-containing ligands. LiI and NaI were found to further enhance the catalytic activity without affecting the selectivity. Activity of Ni-isoquinoline-HI catalyst was found to be constant even after 4 recycles indicating high stability.