Formation of a jojoba oil analog by esterification of oleic acid using zeolites as catalyst

✍ Scribed by J. Aracil; M. Martinez; N. Sa´nchez; A. Corma

• Book ID: 104290327
• Publisher: Elsevier Science
• Year: 1992
• Tongue: English
• Weight: 355 KB
• Volume: 12
• Category: Article
• ISSN: 0144-2449
• DOI: 10.1016/s0144-2449(05)80288-x

✦ Synopsis

An analog of Jojoba oil has been obtained by esterification of oleic acid with oleic alcohol, using ultrastable Y zeolites as catalysts. A maximum in activity is observed at 30-40 and = 10 AI/u.c. for steam and SiCI4-dealuminated samples, respectively. UItrastable zeolites do not catalyze the formation of esters with 38 or more carbon atoms, but are very active and selective for those with 32-34 and 36 carbon atoms. The reaction takes place on an outer shell of the crystallites, the crystallite size and surface composition being important parameters for controlling both activity and selectivity.