The Marine Chemistry and Geochemistry of Quaternary amine corrosion inhibitors
The behaviour of a monoalkyl quaternary ammonium antioxidant in seawater (0-34 psu) has been studied. A simulating study of quaternary ammonium salt (QAS) in an environmental setting was carried out by use of two different compound compositions: pure QAS (QAS-A), and a mixture of QAS and fatty acid...
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ftoslouniv:oai:www.duo.uio.no:10852/11637 2024-10-06T13:53:19+00:00 The Marine Chemistry and Geochemistry of Quaternary amine corrosion inhibitors Borander, Erik Prof. M.I. Abdullah 2006 http://hdl.handle.net/10852/11637 http://urn.nb.no/URN:NBN:no-12444 nob nob http://urn.nb.no/URN:NBN:no-12444 Borander, Erik. The Marine Chemistry and Geochemistry of Quaternary amine corrosion inhibitors. Hovedoppgave, University of Oslo, 2006 http://hdl.handle.net/10852/11637 info:ofi/fmt:kev:mtx:ctx&ctx_ver=Z39.88-2004&rft_val_fmt=info:ofi/fmt:kev:mtx:dissertation&rft.au=Borander, Erik&rft.title=The Marine Chemistry and Geochemistry of Quaternary amine corrosion inhibitors&rft.inst=University of Oslo&rft.date=2006&rft.degree=Hovedoppgave URN:NBN:no-12444 37462 06027591x marinebiologi marinekjemi kvarærnær ammonium ion korrosjon inhibitor miljø saltvann VDP::480 Master thesis Hovedoppgave 2006 ftoslouniv 2024-09-12T05:43:54Z The behaviour of a monoalkyl quaternary ammonium antioxidant in seawater (0-34 psu) has been studied. A simulating study of quaternary ammonium salt (QAS) in an environmental setting was carried out by use of two different compound compositions: pure QAS (QAS-A), and a mixture of QAS and fatty acid amine dissolved in propanol. The study shows that the presence of a hydrophobic constituent (fatty acid amine) might have an influence in the physical property of the antioxidant in aquatic medium. The QAS-A shows uniform solubility towards seawater of different salinity. The combined material flocculates at approximately 1% V/V in seawater. When filtering off the flocculated matter, the compound show a solubility similar to the QAS-A. The investigated QAS have high affinity towards natural sediment from Vestfjorden, Oslofjorden, Norway, but different adsorbing mechanisms seem to be found when comparing the pure and the combined material. A further adsorption/desorption study of the combined material show that this have an increased affinity towards sediment with organic content (~2% TOC), compared to organic free sediment. When UV-irradiated the combined material show indication of break down by fragmentation rather then mineralization. It was not possible to identify the products from UV break down by UV-, IR- or fluorescence spectroscopy. Master Thesis Vestfjorden Universitet i Oslo: Digitale utgivelser ved UiO (DUO) Norway |
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Open Polar |
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Universitet i Oslo: Digitale utgivelser ved UiO (DUO) |
op_collection_id |
ftoslouniv |
language |
Norwegian Bokmål |
topic |
marinebiologi marinekjemi kvarærnær ammonium ion korrosjon inhibitor miljø saltvann VDP::480 |
spellingShingle |
marinebiologi marinekjemi kvarærnær ammonium ion korrosjon inhibitor miljø saltvann VDP::480 Borander, Erik The Marine Chemistry and Geochemistry of Quaternary amine corrosion inhibitors |
topic_facet |
marinebiologi marinekjemi kvarærnær ammonium ion korrosjon inhibitor miljø saltvann VDP::480 |
description |
The behaviour of a monoalkyl quaternary ammonium antioxidant in seawater (0-34 psu) has been studied. A simulating study of quaternary ammonium salt (QAS) in an environmental setting was carried out by use of two different compound compositions: pure QAS (QAS-A), and a mixture of QAS and fatty acid amine dissolved in propanol. The study shows that the presence of a hydrophobic constituent (fatty acid amine) might have an influence in the physical property of the antioxidant in aquatic medium. The QAS-A shows uniform solubility towards seawater of different salinity. The combined material flocculates at approximately 1% V/V in seawater. When filtering off the flocculated matter, the compound show a solubility similar to the QAS-A. The investigated QAS have high affinity towards natural sediment from Vestfjorden, Oslofjorden, Norway, but different adsorbing mechanisms seem to be found when comparing the pure and the combined material. A further adsorption/desorption study of the combined material show that this have an increased affinity towards sediment with organic content (~2% TOC), compared to organic free sediment. When UV-irradiated the combined material show indication of break down by fragmentation rather then mineralization. It was not possible to identify the products from UV break down by UV-, IR- or fluorescence spectroscopy. |
author2 |
Prof. M.I. Abdullah |
format |
Master Thesis |
author |
Borander, Erik |
author_facet |
Borander, Erik |
author_sort |
Borander, Erik |
title |
The Marine Chemistry and Geochemistry of Quaternary amine corrosion inhibitors |
title_short |
The Marine Chemistry and Geochemistry of Quaternary amine corrosion inhibitors |
title_full |
The Marine Chemistry and Geochemistry of Quaternary amine corrosion inhibitors |
title_fullStr |
The Marine Chemistry and Geochemistry of Quaternary amine corrosion inhibitors |
title_full_unstemmed |
The Marine Chemistry and Geochemistry of Quaternary amine corrosion inhibitors |
title_sort |
marine chemistry and geochemistry of quaternary amine corrosion inhibitors |
publishDate |
2006 |
url |
http://hdl.handle.net/10852/11637 http://urn.nb.no/URN:NBN:no-12444 |
geographic |
Norway |
geographic_facet |
Norway |
genre |
Vestfjorden |
genre_facet |
Vestfjorden |
op_relation |
http://urn.nb.no/URN:NBN:no-12444 Borander, Erik. The Marine Chemistry and Geochemistry of Quaternary amine corrosion inhibitors. Hovedoppgave, University of Oslo, 2006 http://hdl.handle.net/10852/11637 info:ofi/fmt:kev:mtx:ctx&ctx_ver=Z39.88-2004&rft_val_fmt=info:ofi/fmt:kev:mtx:dissertation&rft.au=Borander, Erik&rft.title=The Marine Chemistry and Geochemistry of Quaternary amine corrosion inhibitors&rft.inst=University of Oslo&rft.date=2006&rft.degree=Hovedoppgave URN:NBN:no-12444 37462 06027591x |
_version_ |
1812182025127329792 |