1
Edward W Funk, Walter G May, James C Pirkle Jr: Solvent extraction process for tar sands. Exxon Research & Engineering Co, James H Takemoto, August 31, 1982: US04347118 (62 worldwide citation)

A solvent extraction process for tar sands is disclosed wherein a low boiling solvent having a normal boiling point of from 20.degree. to 70.degree. C. is used to extract tar sands. The solvent is mixed with tar sands in a dissolution zone, the solvent:bitumen weight ratio being maintained at from a ...


2
Richard D Jordan, Richard H Schlosberg: Extraction of oil from oil sand. Epic Oil Extractors, William H Honaker, Dickinson Wright PLLC, September 19, 2017: US09765260

Disclosed is a process for extracting an oil composition from oil sand. The extraction process is carried out using a fluidizing medium to fluidize oil sand particles within a contact zone in which the fluidizing medium contacts the oil sand and maintains the oil sand in the fluidized state. At leas ...


3
Richard H Schlosberg, Richard D Jordan, Edward L Diefenthal: Propane process for producing crude oil and bitumen products. Epic Oil Extractors, Dickinson Wright PLLC, January 10, 2017: US09540569

Disclosed are processes for producing bitumen-derived crude oil and heavy bitumen compositions from oil sand. The processes involve treating oil sand feedstock with a first hydrocarbon solvent comprised of propane to produce the bitumen-derived crude oil composition having an asphaltene content of n ...


4
Richard H Schlosberg, Richard D Jordan, Edward L Diefenthal: Process for producing crude oil and bitumen products. Epic Oil Extractors, William H Honaker, Dickinson Wright PLLC, November 7, 2017: US09809757

Disclosed are processes for producing crude oil and bitumen products of relatively high quality from oil sand. The processes for producing the high quality crude oil and bitumen products involve a Phase I and/or Phase II extraction solvent. According to the Phase I process, a high quality bitumen-de ...


5
May Walter G, Funk Edward W, Pirkle J Carl Jr: Methode dextraction aux solvants pour sables bitumineux, Solvent extraction process for tar sands. Exxon Research And Engineering Company, BORDEN LADNER GERVAIS, June 14, 1983: CA1148104

ABSTRACT OF THE DISCLOSURE A solvent extraction process for tar sands is dis-closed wherein a low boiling solvent having a normal boil-ing point of from 20 to 70�C is used to extract tar sands.Raw tar sands are prepared in feed preparation zone 11, andsolvent is mixed with tar sands in dissolution z ...