Solubility behaviour, crystallisation kinetics and pour point : a comparison of linear alkane and triacyl glyceride solute/solvent mixtures

Fletcher, Paul D I; Roberts, Noel; Urquhart, Choephel

Abstract

Mixtures of either a hydrocarbon wax in a hydrocarbon solvent or a long chain triacyl glyceride (TAG) in a TAG solvent show complex solubility boundary temperature hysteresis and precipitated crystal network formation leading to gelation. For these industrially-important systems, we show how the equilibrium solubility and its hysteresis, crystallisation kinetics and pour point temperature vary with solute concentration for representative examples of both hydrocarbon (n-tetracosane (C24) solute in n-heptane (C7) solvent) and TAG (tristearin (SSS) solute in tricaprylin (CCC) solvent) mixtures. The behaviour is modelled with good accuracy; thereby providing a useful aid to formulation and process optimisation.

Citation

Fletcher, P. D. I., Roberts, N., & Urquhart, C. (2016). Solubility behaviour, crystallisation kinetics and pour point : a comparison of linear alkane and triacyl glyceride solute/solvent mixtures. Journal of Industrial and Engineering Chemistry, 34(February), 382-389. https://doi.org/10.1016/j.jiec.2015.12.012

• Journal Article Type: Article
• Acceptance Date: Dec 6, 2015
• Online Publication Date: Dec 14, 2015
• Publication Date: Feb 25, 2016
• Deposit Date: Dec 22, 2015
• Publicly Available Date: Nov 23, 2017
• Journal: Journal of industrial and engineering chemistry
• Print ISSN: 1226-086x
• Publisher: Elsevier
• Peer Reviewed: Peer Reviewed
• Volume: 34
• Issue: February
• Pages: 382-389
• DOI: https://doi.org/10.1016/j.jiec.2015.12.012
• Keywords: Alkane; Triacyl glyceride; Solubility; Crystallisation; Pour point
• Public URL: https://hull-repository.worktribe.com/output/383314
• Publisher URL: http://www.sciencedirect.com/science/article/pii/S1226086X15005602
• Additional Information: Authors' accepted manuscript of article published in: Journal of industrial and engineering chemistry, 2016, v.34.
• Contract Date: Nov 23, 2017