Process of treating bituminous sands conveyor belt with release

Details Process of treating bituminous sands conveyor belt with release Process of treating bituminous sands conveyor belt with release

1977-11-01

1979-10-30

Lawrence, Evan K.

Mineral oils: processes and products

Products and compositions

Lubricating oils

106 2, 198500, 427401, C09K 300

Patent

active

041728114

ABSTRACT:
A process for treating a conveyor belt carrying bituminous sands with a release agent comprises: applying to the sands-bearing surface of the belt, prior to deposition of the bituminous sands, a water-based emulsion having as the disperse phase a silicone fluid having short hydroxyl-terminated polymer chains and a viscosity on the order of 100 centistokes; unloading the sands from the belt; and recovering the bitumen from the sands using a hot water extraction step. The emulsion acts as a release agent which effects clean separation of the sands from the belt surface during unloading and does not deleteriously affect the primary bitumen recovery in the extraction step.

REFERENCES:
patent: 2985544 (1961-05-01), de Monterey
patent: 3529868 (1970-09-01), Hogg

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