Process for the preparation of synthetic lubricant base stocks

US5714661A · kind A · utility

Inventors

• Deepak Kumar Tuli · Faridabad, IN
• Sabyasachi Sinha Ray · New Delhi, IN
• Rakesh Sarin · Faridabad, IN
• Madan Mohan Rai · Faridabad, IN
• Sobhan Ghosh · Faridabad, IN
• Akhilesh Kumar Bhatnagar · Faridabad, IN

Key dates

• Filing date: May 31, 1996
• Grant date: Feb 3, 1998
• Expiry date: May 31, 2016

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C07C2529/08
• WIPO field: Organic fine chemistry
• WIPO sector: Chemistry

Abstract

A process for the preparation of oligomers which are used in synthetic lubricant base stocks. The oligomers are prepared by contacting a mixture of linear olefins and n-paraffins contained in cracked refinery streams having 6 to 24 carbon atoms with activated Y-zeolites. The oligomers and unreacted monomers are subjected to the step of hydrogenation and the lower saturated paraffins are separated therefrom to produce synthetic lubricant base stock.