PROCESSING AIDS TO IMPROVE BITUMEN RECOVERY AND FROTH QUALITY IN OIL SANDS EXTRACTION PROCESSES
摘要
Disclosed and claimed is a method for improving the froth quality and bitumen recovery in primary bitumen extraction processes by coagulant addition in the underwash feed water. Preferred coagulants are cationic or amphoteric polymers. Coagulant addition in the underwash feed water reduces the solids content reporting to the primary bitumen froth in a primary separation vessel (PSC). This treatment program can also be combined with dispersant addition in the dilution make-up feed water into a PSC. Preferred dispersants are low molecular weight anionic polymers.
申请公布号
WO2011130109(A2)
申请公布日期
2011.10.20
申请号
WO2011US31707
申请日期
2011.04.08
申请人
NALCO COMPANY;CROSS, KIMBERLY JANTUNEN;CHENGARA, ANOOP;SOMMESE, ANTHONY G.;MAHARAIH, EDWARD
发明人
CROSS, KIMBERLY JANTUNEN;CHENGARA, ANOOP;SOMMESE, ANTHONY G.;MAHARAIH, EDWARD