Mineral oils: processes and products – Products and compositions – Lubricating oils
Patent
1977-02-14
1978-12-26
Levine, Herbert
Mineral oils: processes and products
Products and compositions
Lubricating oils
C10G 104
Patent
active
041315359
ABSTRACT:
In the hot water process wherein tar sand is slurried in a tumbler with hot water and sodium hydroxide, oversized material, rejected from the tumbler, is mixed with a portion of slurry flood water in a second slurrying device and subjected therein to heating and dispersal of bitumen associated with the rejects. A bitumen-containing slurry is produced from the second device and this slurry is combined with the tumbler slurry and subsequently subjected to flotation to recover bitumen.
REFERENCES:
patent: 3068167 (1962-12-01), White
patent: 3619406 (1971-11-01), Bowman et al.
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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