PHASE BEHAVIOR OF BRANCHED TAIL ETHOXYLATED CARBOXYLATE SURFACTANT/ELECTROLYTE/ALKANE SYSTEMS.

Masahiko ABE Department of Industrial and Engineering Chemistry, Faculty of Science and Technology Institute of Colloid and Interface Science, University of Tokyo, 2641, Noda, Chiba, 273, Japan; Department of Chemistry, The University of Texas at Austin, Austin, Texas, 78712

Robert S. SCHECHTER Department of Chemical Engineering, The University of Texas at Austin, Austin, Texas, 78712

Robert D. SELLIAH Department of Chemistry, The University of Texas at Austin, Austin, Texas, 78712

Baharuddin SHEIKH Department of Chemistry, The University of Texas at Austin, Austin, Texas, 78712

William H. WADE Department of Chemistry, The University of Texas at Austin, Austin, Texas, 78712

ABSTRACT

This paper describes the effect of pH on phase behavior of branched tail EO carboxylate surfactants in electrolyte/ alkane microemulsion system3 which are of possible pertinence to enhanced oil recovery. The pH of the aqueous surfactant solutions was found to have a considerable effect on the salinity requirement for middle phase microemulsion formation. At 70 and 60°C alcohol-free optimal three phase microemulsion systems are formed with all alkanes studied over the entire pH range of 6-12. At lower temperatures and. higher pH values, liquid crystals were found to form in systems which contained lower molecular weight alkanes.

Reprints and Corporate Permissions

Please note: Selecting permissions does not provide access to the full text of the article, please see our help page How do I view content?

To request a reprint or corporate permissions for this article, please click on the relevant link below:

Order Reprints Request Corporate Permissions

Academic Permissions

Please note: Selecting permissions does not provide access to the full text of the article, please see our help page How do I view content?

Obtain permissions instantly via Rightslink by clicking on the button below:

Request Academic Permissions

If you are unable to obtain permissions via Rightslink, please complete and submit this Permissions form. For more information, please visit our Permissions help page.

PHASE BEHAVIOR OF BRANCHED TAIL ETHOXYLATED CARBOXYLATE SURFACTANT/ELECTROLYTE/ALKANE SYSTEMS.

Information for

Open access

Opportunities

Help and information

PHASE BEHAVIOR OF BRANCHED TAIL ETHOXYLATED CARBOXYLATE SURFACTANT/ELECTROLYTE/ALKANE SYSTEMS.

ABSTRACT

Reprints and Corporate Permissions

Academic Permissions

Related research

To cite this article:

Download citation

Information for

Open access

Opportunities

Help and information

Keep up to date

Your download is now in progress and you may close this window

Login or register to access this feature