Cationic starch: an effective flocculating agent

被引：328

作者：

Pal, S

Mal, D

Singh, RP ^{[1
]}

机构：

[1] Indian Inst Technol, Ctr Mat Sci, Kharagpur 721302, W Bengal, India

[2] Indian Inst Technol, Dept Chem, Kharagpur 721302, W Bengal, India

来源：

CARBOHYDRATE POLYMERS | 2005年 / 59卷 / 04期

关键词：

flocculation; jar test; silica suspension; starch; turbidity;

D O I：

10.1016/j.carbpol.2004.06.047

中图分类号：

O69 [应用化学];

学科分类号：

081704 [应用化学];

摘要：

A series of cationic starches (Cat St) have been developed by incorporating a cationic moiety N-(3-Chloro-2-hydroxypropyl) trimethyl ammonium chloride (CHPTAC) onto the backbone of starch in presence of NaOH. The cationic starches are characterized by elemental analysis, FTIR spectroscopy and intrinsic viscosity measurement. The flocculation characteristics of these starches have been evaluated in 0.25 wt% silica suspension by jar test. It has been found that among the four cationic starches, the one with longer CHPTAC chains shows the best performance. The flocculation characteristics of this starch are on silica suspensions compared with various commercially available flocculants. (c) 2004 Elsevier Ltd. All rights reserved.

引用

页码：417 / 423

页数：7

共 24 条

[1]

BARKERT H, 1988, FLOCCULANTS ENCY I A, V11, P251

[2]

Starch granules: structure and biosynthesis [J].