Barium Sulfate Crystallization in the Presence of variable Chain Length Aminomethylenetetraphosphonates and cations (Na+ or Zn2+)
Barium sulfate is a common scale in oil production installations that is treated and controlled with phosphonate inhibitors. A fundamental understanding of how these inhibitors operate, however, is only slowly emerging. In this paper, we investigate the effect on barium sulfate crystallization of tw...
| Main Authors: | , , , , |
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| Format: | Journal Article |
| Published: |
American Chemical Society
2007
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| Online Access: | http://www.elsevier.com/locate/jcrysgro http://hdl.handle.net/20.500.11937/21187 |
| _version_ | 1848750520261410816 |
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| author | Barouda, E. Demadis, K. Freeman, Sandra Jones, Franca Ogden, Mark |
| author_facet | Barouda, E. Demadis, K. Freeman, Sandra Jones, Franca Ogden, Mark |
| author_sort | Barouda, E. |
| building | Curtin Institutional Repository |
| collection | Online Access |
| description | Barium sulfate is a common scale in oil production installations that is treated and controlled with phosphonate inhibitors. A fundamental understanding of how these inhibitors operate, however, is only slowly emerging. In this paper, we investigate the effect on barium sulfate crystallization of two very similar phosphonate molecules that only differ in their backbone spacing, ethylenediamine-N,N,N',N'-tetra(methylenephosphonic acid) (EDTMP) and hexamethylenediamine-N,N,N',N'-tetr(methylenephosphonic acid) (HDTMP). It was found that the inhibitory efficacy of the organic molecules depends on their structural differences but also on the presence of other cations such as Zn2+. It appears that both stereochemical considerations and complexation strength differences between the two phosphonate additives result in different inhibitory powers. In the presence of zinc cations and EDTMP, it is found that inhibition is related to the concentration of uncomplexed ("free") organic. |
| first_indexed | 2025-11-14T07:38:08Z |
| format | Journal Article |
| id | curtin-20.500.11937-21187 |
| institution | Curtin University Malaysia |
| institution_category | Local University |
| last_indexed | 2025-11-14T07:38:08Z |
| publishDate | 2007 |
| publisher | American Chemical Society |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | curtin-20.500.11937-211872017-01-30T12:23:44Z Barium Sulfate Crystallization in the Presence of variable Chain Length Aminomethylenetetraphosphonates and cations (Na+ or Zn2+) Barouda, E. Demadis, K. Freeman, Sandra Jones, Franca Ogden, Mark Barium sulfate is a common scale in oil production installations that is treated and controlled with phosphonate inhibitors. A fundamental understanding of how these inhibitors operate, however, is only slowly emerging. In this paper, we investigate the effect on barium sulfate crystallization of two very similar phosphonate molecules that only differ in their backbone spacing, ethylenediamine-N,N,N',N'-tetra(methylenephosphonic acid) (EDTMP) and hexamethylenediamine-N,N,N',N'-tetr(methylenephosphonic acid) (HDTMP). It was found that the inhibitory efficacy of the organic molecules depends on their structural differences but also on the presence of other cations such as Zn2+. It appears that both stereochemical considerations and complexation strength differences between the two phosphonate additives result in different inhibitory powers. In the presence of zinc cations and EDTMP, it is found that inhibition is related to the concentration of uncomplexed ("free") organic. 2007 Journal Article http://hdl.handle.net/20.500.11937/21187 http://www.elsevier.com/locate/jcrysgro http://pubs.acs.org/journals/cgdefu/index.html http://pubs.acs.org/cgi-bin/article.cgi/cgdefu/2007/7/i02/pdf/cg0604172.pdf American Chemical Society restricted |
| spellingShingle | Barouda, E. Demadis, K. Freeman, Sandra Jones, Franca Ogden, Mark Barium Sulfate Crystallization in the Presence of variable Chain Length Aminomethylenetetraphosphonates and cations (Na+ or Zn2+) |
| title | Barium Sulfate Crystallization in the Presence of variable Chain Length Aminomethylenetetraphosphonates and cations (Na+ or Zn2+) |
| title_full | Barium Sulfate Crystallization in the Presence of variable Chain Length Aminomethylenetetraphosphonates and cations (Na+ or Zn2+) |
| title_fullStr | Barium Sulfate Crystallization in the Presence of variable Chain Length Aminomethylenetetraphosphonates and cations (Na+ or Zn2+) |
| title_full_unstemmed | Barium Sulfate Crystallization in the Presence of variable Chain Length Aminomethylenetetraphosphonates and cations (Na+ or Zn2+) |
| title_short | Barium Sulfate Crystallization in the Presence of variable Chain Length Aminomethylenetetraphosphonates and cations (Na+ or Zn2+) |
| title_sort | barium sulfate crystallization in the presence of variable chain length aminomethylenetetraphosphonates and cations (na+ or zn2+) |
| url | http://www.elsevier.com/locate/jcrysgro http://www.elsevier.com/locate/jcrysgro http://www.elsevier.com/locate/jcrysgro http://hdl.handle.net/20.500.11937/21187 |