Process for extracting crude oil from tar sands

US4427528A · kind A · utility

Inventors

• Walter Lindorfer · Kassel, DE
• Walther Schulz · Vechta, DE
• Fritz Wagner · Kronach, DE
• Wilhelm Jahn-Held · Staufenberg, DE

Key dates

• Filing date: Feb 3, 1981
• Grant date: Jan 24, 1984
• Expiry date: Feb 3, 2001

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C10G1/047
• WIPO field: Basic materials chemistry
• WIPO sector: Chemistry

Abstract

A process for extracting crude oil from tar sands and clay-like materials. This is accomplished by adding a mixture of a trahalose lipid with water to the tar sands and subjecting the mixture to intensive agitation at 60.degree.-90.degree. C. to form a slurry and separating the slurry to recover a crude oil/water mixture.