Method for reducing mineral content of sludge

Details Method for reducing mineral content of sludge Method for reducing mineral content of sludge

1975-05-27

1977-04-19

Gantz, Delbert E.

Mineral oils: processes and products

Products and compositions

Lubricating oils

210 44, 210 83, C10G 104

Patent

active

040186644

ABSTRACT:
A process for treating retention pond sludge containing greater than 20% solids including minerals and bitumen and associated with the aqueous extraction of bitumen from tar sands to provide water substantially reduced in solids content which comprises agitating the sludge with water to provide a diluted sludge with a solids concentration in the range of 6 to 18% by weight, and thereafter settling the sludge to form a lower layer having a solids content substantially higher than that of the sludge an upper layer of bituminous froth, and a middle layer of water having a substantially lower solids content than said undiluted sludge and recovering said upper layer.

REFERENCES:
patent: 3502565 (1970-03-01), Baillie
patent: 3526585 (1970-09-01), Camp
patent: 3931006 (1976-01-01), Baillie et al.

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