Pyrite passivation by humic acid investigated by inverse liquid chromatography

被引：40

作者：

Acai, P. ^{[1
]}

Sorrenti, E. ^{[2
]}

Gorner, T. ^{[2
]}

Polakovic, M. ^{[1
]}

Kongolo, M. ^{[2
]}

de Donato, P. ^{[2
]}

机构：

[1] Slovak Tech Univ Bratislava, Fac Chem & Food Technol, Inst Chem & Environm Engn, Dept Chem & Biochem Engn, Bratislava 81237, Slovakia

[2] Nancy Univ, Lab Environm & Mineralurgie, CNRS, F-54501 Vandoeuvre Les Nancy, France

来源：

COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS | 2009年 / 337卷 / 1-3期

关键词：

Pyrite passivation; Inverse liquid chromatography; Adsorption; Humic acids; Mathematical modelling; ACTIVATED CARBON; SURFACE HETEROGENEITY; SULFIDE MINERALS; OXIDATION; ADSORPTION; FLOTATION; SPECTROSCOPY; SUBSTANCES; STATE;

D O I：

10.1016/j.colsurfa.2008.11.052

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

Passivation of pyrite surface by adsorption of humic acids was studied for differently conditioned samples by the method of inverse liquid chromatography. The adsorption of humic acids was almost irreversible and blocked the electrochemical activity of pyrite. In some cases, breakthrough curves had unusual, two-wave shapes which were successfully described with a mathematical model. This model was based on first-order irreversible kinetics of blocking of three kinds of adsorption sites in permanent evolution. (c) 2008 Elsevier B.V. All rights reserved.

引用

页码：39 / 46

页数：8

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