1
Francis V Hanson, Jan D Miller, Alex G Oblad: Process for recovering products from tar sand. University of Utah, H Ross Workman, Allen R Jensen, Dale E Hulse, October 11, 1983: US04409090 (247 worldwide citation)

A combination physical separation process and thermal fluidized bed process for recovering products from tar sands. The process includes initially separating a portion of the sand from the tar sand through a physical separation process, yielding a bitumen-rich concentrate. The bitumen-rich concentra ...


2
Jan D Miller: Air-sparged hydrocyclone and method. University of Utah, July 21, 1981: US04279743 (119 worldwide citation)

An air-sparged hydrocyclone apparatus and method, the apparatus including a substantially hollow, cyclone body having a cylindrical section and a downwardly oriented conical section. An inlet, an overflow and an underflow are also provided in the cyclone body. At least a portion of the wall of the c ...


3
Jan D Miller, Ye Yi: Air sparged hydrocyclone flotation apparatus and methods for separating particles from a particulate suspension. University of Utah, Workman Nydegger & Jensen, June 13, 1989: US04838434 (79 worldwide citation)

The present invention is directed to air sparged hydrocyclone flotation apparatus and methods for separating particles from particulate suspensions (such as coal and mineral ore slurries), wherein fluid discharge is removed annularly from a flotation vessel. Preferably, the flotation apparatus inclu ...


4
Jan D Miller, David J Kinneberg: Flotation apparatus and method. University of Utah, Workman Nydegger & Jensen, May 17, 1988: US04744890 (74 worldwide citation)

Flotation apparatus and methods for separating particles from particulate suspensions such as coal and mineral ore slurries, wherein fluid discharge is removed annularly from a flotation vessel. Preferably, the flotation apparatus includes a vertically oriented, cylindrical flotation vessel having a ...


5
Jan D Miller: Apparatus and method for separating particles from a fluid suspension. University of Utah, H Ross Workman, Allen R Jensen, Dale E Hulse, August 9, 1983: US04397741 (65 worldwide citation)

An apparatus and method for separating particles from a fluid, particulate suspension by flotation in a centrifugal field. The apparatus includes a vertically oriented, cylindrical vessel having a tangential inlet and a tangential outlet. The particulate suspension is introduced into the vessel thro ...


6
Jan D Miller: Flotation apparatus and method for achieving flotation in a centrifugal field. University of Utah Research Foundation, H Ross Workman, Allen R Jensen, Dale E Hulse, August 16, 1983: US04399027 (54 worldwide citation)

A gas-sparged hydrocyclone apparatus and method for achieving separation by flotation in a centrifugal field. The hydrocyclone apparatus is suitably modified so that a gas phase may be dispersed into the liquid vortex created in the hydrocyclone.


7
Francis V Hanson, Jan D Miller, Alex G Oblad: Process for obtaining products from tar sand. University of Utah, H Ross Workman, J Winslow Young, Allen R Jensen, June 29, 1982: US04337143 (36 worldwide citation)

A novel thermal process for recovering hydrocarbon and other products from tar sand. The process includes blending tar sand with a bitumen-rich concentrate while heating the same with a hot, burnt sand. The products are recovered by passing the combined feed through a fluidized bed and selectively c ...


8
Jan D Miller, Jaime E Sepulveda: Separation of bitumen from dry tar sands. University of Utah, October 17, 1978: US04120776 (33 worldwide citation)

A process for the separation and recovery of bitumen from dry tar sands or sands with negligible quantities of connate water. The process includes comminuting the tar sands to an average particle size of approximately one centimeter in diameter and digesting the comminuted tar sand in a hot, aqueous ...


9
Jan D Miller, Jan Hupka: Bitumen recovery from tar sands. University of Utah, H Ross Workman, Allen R Jensen, Dale E Hulse, September 11, 1984: US04470899 (32 worldwide citation)

A process for recovering bitumen from tar sands wherein the tar sands are pretreated with a diluent, such as kerosene in the preferred embodiment, to lower the viscosity of the bitumen such that it is in the range of about 5 to about 20 poise at the digestion temperature. The tar sands are then dige ...


10
Jan D Miller, Manoranjan Misra: Process for separating high viscosity bitumen from tar sands. University of Utah, H Ross Workman, Allen R Jensen, Dale E Hulse, December 4, 1984: US04486294 (31 worldwide citation)

A novel process for separating high viscosity bitumen from tar sand. The process includes grinding the tar sand to obtain phase disengagement of the bitumen phase from the sand phase and thereafter using flotation techniques to obtain phase separation of the bitumen phase from the sand phase. Phase ...



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