Mineral oils: processes and products – Products and compositions – Lubricating oils
Patent
1976-12-02
1978-09-26
Levine, Herbert
Mineral oils: processes and products
Products and compositions
Lubricating oils
C10G 104
Patent
active
041168097
ABSTRACT:
Bitumen froth streamsfrom the primary separation vessel and secondary flotation cells are gravity transferred into one or more columns and heated and deaerated therein by passing them countercurrent to steam. The heated deaerated froth is then pumped with centrifugal pump means to the froth treatment circuit. By deaerating and heating before pumping, the froth is converted from a form difficult to pump to one which is relatively easy to pump.
REFERENCES:
patent: 3052621 (1962-09-01), Clark
patent: 3998702 (1976-12-01), Opukn
Canada-Cities Service, Ltd.
Gulf Oil Canada Limited
Her Majesty the Queen in right of Canada as represented by the
Her Majesty the Queen in right of the Province of Alberta, Gover
Imperial Oil Limited
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