Recovery of a carbonaceous liquid with a low fines content
Patent
·
OSTI ID:5942618
A method is described for removing solid fines in an extraction of bitumen from a carbonaceous solid or carbonaceous liquid containing extractable bitumen comprising; (a) forming a mixture comprising dissolved bitumen, about 5 to about 25 weight % undissolved bitumen, solid particle fines, and solvent wherein the about 5 to about 25 weight % undissolved bitumen is sufficient to settle from the mixture and remove the solid particle fines; (b) permitting the undissolved bitumen to settle with at least a portion of the solid fines agglomerating and settling with the undissolved bitumen to form a lower solid phase; (c) separating an upper dissolved bitumen solvent liquid phase from the lower solid phase; and (d) separating the dissolved bitumen from the solvent.
- Assignee:
- Standard Oil Co., (Indiana) Chicago, IL
- Patent Number(s):
- US 4572777
- OSTI ID:
- 5942618
- Country of Publication:
- United States
- Language:
- English
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