Effect of illite clay and divalent cations on bitumen recovery

被引：0

作者：

SNC-Lavalin Inc., Calgary, Alta. T2P 3H5, Canada ^{[1
]}

不详 ^{[2
]}

不详 ^{[3
]}

机构：

[1] SNC-Lavalin Inc., Calgary

[2] Baker Petrolite Corporation, Fort McMurray

[3] Department of Chemical and Materials Engineering, University of Alberta, Edmonton

来源：

Can. J. Chem. Eng. | 2006年 / 6卷 / 643-650期

关键词：

Bitumen recovery; Divalent cations; Illite clays; pH; Zeta potential distribution;

D O I：

10.1002/cjce.5450840602

中图分类号：

学科分类号：

摘要：

The adverse effect of illite clay on bitumen recovery was found to be related to its acidity. The addition of calcium or magnesium ions to the flotation deionized water had a marginal effect on bitumen recovery when measured using a Denver flotation cell. However, the co-addition of illite clay and divalent cations caused a significant reduction in bitumen recovery. The effect was found to be compounded at a lower process temperature and low pH values. Zeta potential distributions of illite suspensions and bitumen emulsions were measured individually and as a mixture to investigate the effect of divalent cations on the interaction between bitumen and illite clay. The presence of 1 mM calcium or magnesium ions in deionized water had a significant effect on the interactions between bitumen and illite clay. Slime coating of illite onto bitumen was not observed in zeta potential distribution measurements performed in alkaline tailings water.

引用

页码：643 / 650

页数：7

共 24 条

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