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Solvent extraction of hydrofluosilicic acid with alamine 336

Stenström, Stig LU and Wingefors, S (1986) In Canadian Journal of Chemical Engineering 64(3). p.426-431
Abstract
Extraction constants for the solvent extraction of hydrofluosilicic acid with Alamine 336 have been determined. Two species were identified, (R3NH+ )2 SiF62- and R3NH+ HSiF6, whose respective extraction constants were determined to be log K21 = 7.42 and log K11 = 2.60. For the dissociation of hydrofluosilicic acid the activity coefficient model presented by Bromley was adapted to sulphuric acid and the values used for hydrofluosilicic acid. The effect of the diluent was experimentally investigated.
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author
organization
publishing date
type
Contribution to journal
publication status
published
subject
in
Canadian Journal of Chemical Engineering
volume
64
issue
3
pages
426 - 431
publisher
Wiley-Blackwell
external identifiers
  • wos:A1986D286200010
  • scopus:0022733617
ISSN
0008-4034
DOI
10.1002/cjce.5450640310
language
English
LU publication?
yes
id
d1384b3f-3e39-4a2c-bf05-4d282985e83f (old id 3914152)
date added to LUP
2013-07-01 10:03:23
date last changed
2017-01-01 07:04:55
@article{d1384b3f-3e39-4a2c-bf05-4d282985e83f,
  abstract     = {Extraction constants for the solvent extraction of hydrofluosilicic acid with Alamine 336 have been determined. Two species were identified, (R3NH+ )2 SiF62- and R3NH+ HSiF6, whose respective extraction constants were determined to be log K21 = 7.42 and log K11 = 2.60. For the dissociation of hydrofluosilicic acid the activity coefficient model presented by Bromley was adapted to sulphuric acid and the values used for hydrofluosilicic acid. The effect of the diluent was experimentally investigated.},
  author       = {Stenström, Stig and Wingefors, S},
  issn         = {0008-4034},
  language     = {eng},
  number       = {3},
  pages        = {426--431},
  publisher    = {Wiley-Blackwell},
  series       = {Canadian Journal of Chemical Engineering},
  title        = {Solvent extraction of hydrofluosilicic acid with alamine 336},
  url          = {http://dx.doi.org/10.1002/cjce.5450640310},
  volume       = {64},
  year         = {1986},
}