Clarification of black water produced during recovery of bitumen

Details Clarification of black water produced during recovery of bitumen Clarification of black water produced during recovery of bitumen

1984-06-14

1985-05-28

Wyse, Thomas

Liquid purification or separation

Processes

Ion exchange or selective sorption

210691, 210708, 210917, C02F 128

Patent

active

045199159

ABSTRACT:
Hot water is an important component in the recovery or extraction of bitumen and heavy oils. This hot water tends to form emulsions with the oil and when these emulsions are broken by demulsifiers and the oil separates, the remaining water retains a black color and cannot be recycled in the process. The black color has been most difficult to remove, but it has now been found that it can quite easily be removed by certain selected adsorbents. These include high ash coal rejects, fly ash from coking gas and red mud.

REFERENCES:
patent: 4133742 (1979-01-01), Hill
patent: 4277346 (1981-07-01), Sakotani et al.
patent: 4392944 (1983-07-01), Kessick

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