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Peter Van Meurs, Eric P De Rouffignac, Harold J Vinegar, Michael F Lucid: Conductively heating a subterranean oil shale to create permeability and subsequently produce oil. Shell Oil Company, December 12, 1989: US04886118 (342 worldwide citation)

Shale oil is produced from a subterranean interval of oil shale, where the interval is initially substantially impermeable and contains a specified grade and thickness of oil shale. Said interval is conductively heated from borehole interiors which are kept hotter than about 600.degree. C. and are h ...


2
Paul D Bowerman, Michael F Lucid: Reductive stripping process for the recovery of either or both uranium and vanadium. Kerr McGee Corporation, William G Addison, December 23, 1980: US04241027 (12 worldwide citation)

A process for the reductive stripping of an organic phase containing either or both uranium and vanadium. Said process comprising contacting said organic phase containing either or both uranium in the hexavalent state and vanadium in the pentavalent state with an aqueous solution containing a predet ...


3
Michael F Lucid, Wilbert J Robertson, Paul D Bowerman: Simultaneous extraction and recovery of uranium and vanadium from wet process acids. Kerr McGee Corporation, William G Addison, July 15, 1980: US04212849 (10 worldwide citation)

A process for the simultaneous coextraction of uranium and vanadium from an aqueous acidic solution containing the same comprising contacting said aqueous acidic solution with an organic phase comprising a mixture of (a) an alkyl substituted diaryl phosphoric acid, (b) a trialkylphosphine oxide comp ...


4
P David Bowerman, Michael F Lucid: Sequential process for extraction and recovery of vanadium and uranium from wet process acids. Kerr McGee Chemical Corporation, William G Addison, January 24, 1984: US04427640 (6 worldwide citation)

A process for preferentially extracting and recovering vanadium and uranium from wet process acids. The wet process acid first is contacted with a neutral organo-phosphorus compound to extract the vanadium values. The resulting loaded organic phase is separated from the wet process acid due to immis ...


5
John A Hermann, Michael F Lucid: Method of stabilizing wet process phosphoric acid for solvent extraction. Kerr McGee Chemical Corporation, William G Addison, April 27, 1982: US04327061 (5 worldwide citation)

A method of stabilizing wet process phosphoric acid containing acid soluble impurities preparatory to solvent extraction for the recovery of valuable minerals. The acid is introduced into a vessel containing crystal seed bed of the impurities. A portion of the acid then is withdrawn and concentrated ...


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