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High catalytic activity of silicalite in gas-phase ketonisation of propionic acid.

Chemical communications (Cambridge, England) (2013-03-19)
Hossein Bayahia, Elena Kozhevnikova, Ivan Kozhevnikov
ABSTRACT

Amorphous silica and crystalline silicalite (MFI structure) are demonstrated to be active and environmentally benign catalysts for propionic acid ketonisation at 450-500 °C to form 3-pentanone. The silicalite is particularly efficient, and its ketonisation selectivity is increased by base modification probably through generation of silanol nests.

MATERIALS
Product Number
Brand
Product Description

Sigma-Aldrich
Propionic acid, ACS reagent, ≥99.5%
Sigma-Aldrich
Propionic acid, ≥99.5%
Supelco
Propionic acid, analytical standard
Sigma-Aldrich
Propionic acid, ≥99.5%, FCC, FG
Sigma-Aldrich
Propionic acid, natural, 99%, FG
Sigma-Aldrich
Propionic acid, puriss. p.a., ≥99.5% (GC)
Sigma-Aldrich
Propionic acid, BioReagent, suitable for insect cell culture, ~99%