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Adsorption of surfactants on mineral oxide surfaces from aqueous solutions. Part 1. Isomerically pure anionic surfactants

Journal Article · · J. Colloid Interface Sci.; (United States)

The adsorption of surfactants on minerals is detrimental to surfactant-enhanced oil recovery. To minimize adsorption, the forces tending to cause it must be understood. This requires the study of relatively simple, well-defined systems. The majority of surfactant adsorption studies on mineral oxides has been made with surfactant mixtures and not with monoisomerically pure species. Some of the observed results may be due to complex surfactant intercomponent interactions. In this study, the adsorption of 3 isomerically pure alkylbenzene sulfonates was measured on alumina and kaolinite from very low concentrations to well above the critical micelle concentration and a thermodynamic model was developed, which describes the observed isotherms. 59 references.

OSTI ID:
6753479
Journal Information:
J. Colloid Interface Sci.; (United States), Journal Name: J. Colloid Interface Sci.; (United States) Vol. 85:2; ISSN JCISA
Country of Publication:
United States
Language:
English