The roles of adsorption in hydrate precipitation
Loh, Joanne, Brodie, Greta, & Naim, Fatima (2010) The roles of adsorption in hydrate precipitation. In Light Metals 2010 : TMS Annual Meeting & Exhibition, 14-18 February 2010, Seattle, USA.
It has been well established that organic compounds with adjacent hydroxyl groups in Bayer process liquor can inhibit gibbsite precipitation by acting as seed poisons. The degree of inhibition is a function of the number and stereochemistry of the hydroxyl groups. Seed poisons generally adsorb strongly onto hydrate surfaces, implying that surface coverage is the mechanism for yield inhibition. There are examples however of organics that strongly adsorb but do not lead to yield inhibition. There is a possibility that this apparent contradiction may be an artifact of differences in conditions between the adsorption and precipitation experiments. The present work investigates the adsorption and inhibition effects of a range of compounds under strictly similar conditions to clarify the role of adsorption on yield inhibition.
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|Item Type:||Conference Paper|
|Divisions:||Current > Research Centres > Centre for Tropical Crops and Biocommodities
Current > QUT Faculties and Divisions > Science & Engineering Faculty
|Deposited On:||13 Jul 2014 23:55|
|Last Modified:||15 Jul 2014 03:57|
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