Process for separating liquids from fine grained solids

US4559133A · kind A · utility

Assignee

• Peter K. Siegfried · DE

Inventors

• Peter Siegfried · Fairview Avenue, DE
• Gerd Brunner · Hamburg, DE
• Dieter Stützer · Marloffstein, DE

Key dates

• Filing date: Sep 15, 1983
• Grant date: Dec 17, 1985
• Expiry date: Sep 15, 2003

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C10M175/005
• WIPO field: Chemical engineering
• WIPO sector: Chemistry

Abstract

A process is disclosed of separating fine solids from oil in which the solids are dispersed which comprising contacting said oil with a combination of a compressed above-critical gas and an entraining agent at such temperature and such pressure that the system consisting of the oil, entraining agent and above-critical gas constitutes a single phase, withdrawing and separating the so-withdrawn phase into a liquid phase rich in oil and a gas phase lean in oil, the single-phase mixture of oil, entraining agent and above-critical gas from the solids.