Amylopectin-graft-polyacrylamide for the flocculation and dewatering of oil sands tailings

被引：12

作者：

Bazoubandi, Behnaz ^{[1
]}

Soares, Joao B. P. ^{[1
]}

机构：

[1] Univ Alberta, Dept Chem & Mat Engn, Edmonton, AB, Canada

来源：

MINERALS ENGINEERING | 2020年 / 148卷

关键词：

Amylopectin; Polyacrylamide; Graft polymerization; Flocculation; Dewatering; Oil sands tailings; NMR-SPECTROSCOPY; ACRYLAMIDE; WATER;

D O I：

10.1016/j.mineng.2020.106196

中图分类号：

TQ [化学工业];

学科分类号：

0817 ;

摘要：

A series of amylopectin-graft-polyacrylamides with varying molecular structures were synthesized and used to flocculate and dewater oil sands tailings. Amylopectin-graft-polyacrylamides made with different grafting frequencies and lengths were compared with commercial polyacrylamide flocculants according to supernatant turbidity, sediment solids content, and capillary suction time. Thanks to their hydrophobic core, amylopectin-graft-polyacrylamides formed sediments with higher solids content than the commercial polyacrylamides used in our experiments, suggesting that they are an attractive alternative to treat oil sands tailings.

引用

页数：11

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