SURFACTANT RECOVERY IN ADSORBING COLLOID FLOTATION

被引：19

作者：

CURRIN, BL ^{[1
]}

POTTER, FJ ^{[1
]}

WILSON, DJ ^{[1
]}

FRENCH, RH ^{[1
]}

机构：

[1] VANDERBILT UNIV,DEPT ENVIRONM ENGN & POLICY MANAGEMENT,NASHVILLE,TN 37235

来源：

SEPARATION SCIENCE AND TECHNOLOGY | 1978年 / 13卷 / 04期

基金：

美国国家科学基金会;

关键词：

D O I：

10.1080/01496397808057103

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

The displacement of surfactants from floc-water interfaces by salts is examined by statistical mechanical methods. The effect of added salts on the adsorption isotherm is exhibited, and it is found that surfactant condensed films can readily be displaced. This may markedly improve the economics of adsorbing colloid flotation by facilitating surfactant recovery. Preliminary experimental results supporting the theory are presented; Na2CO3is used to displace sodium lauryl sulfate from Fe(OH)3. The viscous drag forces on floc particles attached to rising bubbles are calculated for bubbles having diameters in the range 0 to 1 mm. At the upper end of this range these forces appear to be large enough to reduce the efficiency of foam flotation. © 1978, Taylor & Francis Group, LLC. All rights reserved.

引用

页码：285 / 302

页数：18

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