1
Bryan D Sparks, F Weldon Meadus, Enrique O Hoefele: Solvent extraction spherical agglomeration of oil sands. Canadian Patents and Development, Alan A Thomson, January 12, 1988: US04719008 (42 worldwide citation)

Oil sands and similar hydrocarbon-solids mixtures are separated into their components by steps comprising: mixing with a solvent for the hydrocarbon in an extraction-contacting stage including a controlled light milling action, in the presence of hydrophilic bridging liquid, under selected condition ...


2
Bryan D Sparks, Richard D Coleman, Floyd N Toll, F Weldon Meadus, Michio Ikura: Incorporation of a coprocessing additive into coal/oil agglomerates. Energy Mines and Resources Canada, March 2, 1993: US05190566 (38 worldwide citation)

In the present invention, iron sulfate is added in the form of an aqueous wash solution to coal agglomerates after separation of ash from the agglomerated coal. As the agglomerates remain in a continuous water phase, a good dispersion of the iron sulfate solution throughout the agglomerate matrix oc ...


3
Ira E Puddington, Bryan D Sparks, Ernest A Sexton: Ink removal from waste paper. Canadian Patents and Development, The Ontario Paper Company, Alan A Thomson, February 28, 1978: US04076578 (32 worldwide citation)

Waste paper, particularly newsprint, is treated to release adhering ink particles (e.g. pigment carbon) from the paper fibers, and the ink solids (and organic contaminants) are then preferentially collected on the surface of inserted non-soap solids which have an affinity for, and are of larger size ...


4
F Weldon Meadus, Bryan D Sparks, Ira E Puddington, J Redmond Farnand: Separating organic material from tar sands or oil shale. Canadian Patents and Development, Alan A Thomson, November 8, 1977: US04057486 (26 worldwide citation)

Tar sands and like mineral solids-plus petroleum deposits are separated into a petroleum fraction and a solids fraction by contacting with an organic solvent or diluent (in one or more stages) to give a liquid slurry, providing in the system a small amount of an aqueous agglomerating liquid, mixing ...


5
Bryan D Sparks, F Weldon Meadus, David H McNabb, C Edward Capes: Soil remediation. National Research Council of Canada, September 26, 1995: US05453133 (25 worldwide citation)

The invention disclosed relates to a process for removing contaminants, such as hydrocarbons, from soil. The process involves contacting the contaminated soil with a suitable solvent for the contaminant, in the presence of a bridging liquid which is immiscible with the solvent, while agitating. The ...


6
Richard D Coleman, Floyd N Toll, Bryan D Sparks: Irreversible drying of carbonaceous fuels. National Research Council of Canada, June 18, 1996: US05527365 (20 worldwide citation)

The invention disclosed relates to a method for drying low-quality solid carbonaceous fuels such as lignite and sub-bituminous coal to reduce the moisture content substantially to zero, and to minimize re-adsorption of moisture during storage and transporation. The method involves drying the solid f ...


7
Abdul Majid, Vincent P Clancy, Bryan D Sparks: Preparation of composite fuels, with reduced sulfur emission characteristics, from oily and carbonaceous wastes. Canadian Patents & Development, Juliusz Szereszewski, September 19, 1989: US04867755 (13 worldwide citation)

A method of preparing a sulfur-containing composite fuel is provided to utilize some high-sulfur content solid and semi-solid fuels such as tar sand coke and refinery tank sludges by reducing their sulfur emission on combustion. The method comprises the steps of making an aqueous slurry including a ...


8
Frederick W Meadus, Bryan D Sparks: Particulate solids conveying and draining device. Canadian Patents & Development, Francis W Lemon, September 27, 1983: US04406788 (8 worldwide citation)

A particulate solids conveying and draining device, for mounting in a solids outlet wall, comprising a funnel-shaped rotor with particulate solids scooping members attached thereto. Each particulate solids scooping member comprises a paddle scooping portion leading to a liquid draining, particulate ...


9
Frederick W Meadus, Ira E Puddington, Bryan D Sparks: Pressure- and heat-sensitive coatings. Canadian Patents and Development, Larson Taylor and Hinds, June 19, 1979: US04158648 (7 worldwide citation)

A composition for forming pressure- and heat-sensitive coatings comprising finely divided organic material of particle size from about 0.05 to 10 micrometers in diameter having a melting point above about 150.degree. C., the particles being of substantially uniform color and subject to plastic flow ...


10
Frederick Weldon Meadus, Bryan D Sparks, Ira E Puddington: Apparatus for separating organic material from particulate tar sands and coal and agglomeration of the particulate residue. Canadian Patents and Development, Francis W Lemon, October 5, 1976: US03984287 (6 worldwide citation)

A rotatable drum having an interior which tapers in a horizontal direction has a first port at the smaller end for receiving particulate Tar Sands or coal, and an agglomerating liquid, e.g. water, and a second port at the larger end for receiving an organic material separating liquid, e.g. Varsol, w ...