Separation and characterisation of problematic solids from athabasca oil sands and waste unit samples

被引：0
作者：
Tu, Y
Li, ZF
Pleizier, G
Ng, S
Chung, KH
机构：
[1] Natl Res Council Canada, Inst Chem Proc & Environm Technol, Ottawa, ON K1A 0R6, Canada
[2] Univ Petr, State Key Lab Heavy Oil Proc, Beijing, Peoples R China
[3] Syncrude Canada Ltd, Edmonton Res Ctr, Edmonton, AB T6N 1H4, Canada
来源：
CANADIAN JOURNAL OF CHEMICAL ENGINEERING | 2004年 / 82卷 / 04期
关键词：
oil sands; waste unit; bitumen separation; clays; ultra-fines;
D O I：
暂无
中图分类号：
TQ [化学工业];
学科分类号：
0817 ;
摘要：
Traditionally, Athabasca oil sands have been classified by bitumen and fines (<44 mum) contents. However, these markers do not always identify ores with poor processing characteristics. Consequently, there is a need to discover other characteristics to define problem ores. Here we describe a separation scheme for oil sands solids fractions based on their physical and surface properties. Clay material (<3 mum) and its ultra-fine (<0.3 mum) component are of particular interest. Settling tests on ultra-fine clay suspensions confirm that this fraction is the major cause of sludging during primary bitumen separation. Waste units, or barren oil sands, are shown to be a major source of this component.
引用
收藏
页码：678 / 686
页数：9
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