The Resource Effect of micelles on flotation of metal ions, by Uriel Michael Oko, (electronic resource)

Effect of micelles on flotation of metal ions, by Uriel Michael Oko, (electronic resource)

Label
Effect of micelles on flotation of metal ions
Title
Effect of micelles on flotation of metal ions
Statement of responsibility
by Uriel Michael Oko
Creator
Subject
Genre
Language
eng
Summary
"A study of the anionic surfactant, sodium dodecyl sulfate (SDS), and the dependency of the adsorption of divalent metal counterions such as copper and zinc at the air-water interface on its concentration in the solution, was undertaken in order to better understand the process of ion flotation. The study is divided into two broad categories, the first of which consists of the evaluation of the extent of aggregation of the surfactant molecules into micelles, and the effect of the divalent metal counterion concentration on this aggregation and on the critical concentration at which micelles start forming (cmc). This was accomplished using well established light scattering and surface tension techniques, which were also used in the investigation of the influence of surfactant concentration on the precipitation of lead dodecyl sulfate. The adsorption of divalent counterions at air-water interfaces comprised the second category of this research, and it was conducted using conventional equilibrium surface tension measurements and an established foaming technique. The following conclusions were drawn: 1) The adsorption of divalent metal counterions at air-water interfaces, and therefore, the flotation of these ions is largely independent of the type of divalent counterion. 2) Optimum flotation conditions for divalent counterions occur in surfactant solutions containing no micelles. Since the stability of the foam, a desirable feature in ion flotation, increases with the concentration of the surfactant, the best conditions for ion flotation occur at the cmc. 3) The competing adsorption of the divalent metal counterions at the micellar shear interface is primarily responsible for the decrease in the adsorption of these counterions at the air-water interface. 4) The competing adsorption of divalent lead counterions at the micellar shear interface is apparently responsible for the increase in the solubility of Pb(DS)2 in concentrated sodium dodecyl sulfate (SDS) solutions. It was possible to propose a theory, based on the potential calculations of the electrical double layers of flat and spherical surfaces, which correlated most of the observations made in this research"--Abstract, p. ii-iii
Related
Cataloging source
UMR
http://library.link/vocab/creatorDate
1938-
http://library.link/vocab/creatorName
Oko, Uriel Michael
Degree
Ph. D.
Dissertation year
1968.
Granting institution
University of Missouri--Rolla
Illustrations
illustrations
Index
no index present
Literary form
non fiction
Nature of contents
  • dictionaries
  • bibliography
  • theses
http://library.link/vocab/subjectName
  • Metallurgy
  • Micelles
  • Metal ions
  • Organosulfur compounds
Target audience
specialized
Label
Effect of micelles on flotation of metal ions, by Uriel Michael Oko, (electronic resource)
Instantiates
Publication
Note
  • Vita
  • The entire thesis text is included in file
  • Title from title screen of thesis/dissertation PDF file (viewed August 16, 2012)
Bibliography note
Includes bibliographical references (pages 79-83)
Carrier category
online resource
Carrier category code
  • cr
Carrier MARC source
rdacarrier.
Color
black and white
Content category
text
Content type code
  • txt
Content type MARC source
rdacontent.
Control code
806325457
Dimensions
unknown
Extent
1 online resource (ix, 115 unnumbered pages)
Form of item
electronic
Media category
computer
Media MARC source
rdamedia.
Media type code
  • c
Other physical details
illustrations, digital, PDF file.
Specific material designation
remote
System control number
(OCoLC)806325457
System details
  • System requirements: Adobe Acrobat Reader; Internet browser
  • Mode of access: World Wide Web
Label
Effect of micelles on flotation of metal ions, by Uriel Michael Oko, (electronic resource)
Publication
Note
  • Vita
  • The entire thesis text is included in file
  • Title from title screen of thesis/dissertation PDF file (viewed August 16, 2012)
Bibliography note
Includes bibliographical references (pages 79-83)
Carrier category
online resource
Carrier category code
  • cr
Carrier MARC source
rdacarrier.
Color
black and white
Content category
text
Content type code
  • txt
Content type MARC source
rdacontent.
Control code
806325457
Dimensions
unknown
Extent
1 online resource (ix, 115 unnumbered pages)
Form of item
electronic
Media category
computer
Media MARC source
rdamedia.
Media type code
  • c
Other physical details
illustrations, digital, PDF file.
Specific material designation
remote
System control number
(OCoLC)806325457
System details
  • System requirements: Adobe Acrobat Reader; Internet browser
  • Mode of access: World Wide Web

Library Locations

  • Curtis Laws Wilson LibraryBorrow it
    400 West 14th Street, Rolla, MO, 65409, US
    37.955220 -91.772210
  • Missouri University of Science & Technology Library DepositoryBorrow it
    2908 Lemone Blvd, Columbia, MO, 65201, US
    38.919360 -92.291620
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