Decarbonation of tailings sludge to improve settling

Details Decarbonation of tailings sludge to improve settling Decarbonation of tailings sludge to improve settling

1982-09-10

1983-11-08

Hruskoci, Peter A.

Liquid purification or separation

Processes

Making an insoluble substance or accreting suspended...

208 11LE, 210718, 210727, 210731, C02F 1114

Patent

active

044141173

ABSTRACT:
Carbonates and bicarbonates are removed from the sludge of tar sands tailings ponds whereby solids settle from the sludge more rapidly than in the presence of the carbonates and/or bicarbonates. Hydrolyzed starch is used as a flocculant in the process and alcohol may also be used to assist in the settling and/or to improve the characteristics of the settled sludge for subsequent dewatering.

REFERENCES:
patent: 3526585 (1970-09-01), Camp
patent: 3816305 (1974-06-01), Schutte
patent: 4036752 (1977-07-01), Lassiter
patent: 4225433 (1980-09-01), Liu et al.
patent: 4229295 (1980-10-01), Krofchak
patent: 4282103 (1981-08-01), Fuhe et al.
patent: 4330409 (1982-05-01), Yong et al.

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