The Governing Council of the University of Toronto

Colin R Phillips

Leon J Rubin

Levente Laszlo Diosady

Jose Freire-Canosa

This invention relates to a process for the extraction of oilseeds and oilseed materials with two mutually immiscible solvents, the first solvent comprising a lower alkanol containing dissolved ammonia, and the second solvent comprising a lower alkane or halogenated lower alkane. The process yields two improved products, a proteinaceous meal of reduced glucosinolate content and a high quality triglyceride oil, both acceptable as food ingredients.

Solvent extraction of oil bearing seeds

A specially modified and adapted fluidized bed is used for heat transfer between gas streams, which have a substantial temperature differential. The fluidized bed is provided with first and second inlet ports for the gases and first and second upper zones, in respective substantial vertical alignment with one another, with outlet ports in the upper zones. The hot gas is led in through the first inlet port and out through the first outlet port, whilst the cooler gas is led in through the second inlet port and out through the second outlet port. Particles of the fluidized bed are permitted to flow between the hot zone and the cooler zone of the fluidized bed, but no significant mixing of the two gas streams takes place in the fluidized bed. Efficient heat transfer is effected through the bed. The apparatus may be used in a heat transfer process with inert fluidized bed particles, and may also be used in the fluidized bed gasification of coal, feeding air in through the first inlet port to cause exothermic reaction with the coal, and feeding water vapour in through the second inlet for gasification of the coal. In this manner, the exothermic reaction provides heat which is transferred to maintain the endothermic reaction in coal gasification.

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Gormley, Canada

Colin R Phillips