Extraction Equilibrium of Dicarboxylic Acids with Tertiary Amine in Single and Binary Diluents
Result description
The extraction equilibria of aliphatic dicarboxylic acids with solutions of trialkylamine in binary diluents were measured and compared. Oxalic, succinic, dl-malic and d-tartaric acids were used. Trialkylamine TAA with C7 to C9 carbon atom chains was dissolved in octanol-1, methyl-isobutyl ketone and chloroform, or in their binary mixtures with n-heptane. Physical extraction with pure active diluents was also measured. The contribution of physical extraction was significant only in the case of succinicand oxalic acids and with octanol-1 and MIBK as diluents. Various modifications of a mathematical model, incorporating reactions of formation of (1:2), (1:1), (2:1) and (3:1) acid:amine complexes and physical extraction, were used for correlating the equilibrium data.
Keywords
The result's identifiers
Result code in IS VaVaI
Result on the web
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DOI - Digital Object Identifier
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Alternative languages
Result language
angličtina
Original language name
Extraction Equilibrium of Dicarboxylic Acids with Tertiary Amine in Single and Binary Diluents
Original language description
The extraction equilibria of aliphatic dicarboxylic acids with solutions of trialkylamine in binary diluents were measured and compared. Oxalic, succinic, dl-malic and d-tartaric acids were used. Trialkylamine TAA with C7 to C9 carbon atom chains was dissolved in octanol-1, methyl-isobutyl ketone and chloroform, or in their binary mixtures with n-heptane. Physical extraction with pure active diluents was also measured. The contribution of physical extraction was significant only in the case of succinicand oxalic acids and with octanol-1 and MIBK as diluents. Various modifications of a mathematical model, incorporating reactions of formation of (1:2), (1:1), (2:1) and (3:1) acid:amine complexes and physical extraction, were used for correlating the equilibrium data.
Czech name
Rovnováhy extrakce dikarboxylových kyselin terciárními aminy v jednoduchých a binárních ředidlech
Czech description
Byly měřeny, a vzájemně porovnávány, rovnováhy extrakce alifatický dikarboxylových kyselin roztoky trialkylaminu v binárních ředidlech. Použity byly kyseliny šťavelová, jantarová, dl-jablečná a vinná. Trialkylamin TAA s uhlíkovými řetězci C7 ? C9 byl rozpuštěn v oktanolu-1, metylisobutyketonu, chloroformu, nebo v jejich binárních směsích s n-heptanem. Byla také měřena fyzikální extrakce kyseliny čistým aktivním ředidlem. Významný příspěvek fyzikální extrakce byl zjištěn pouze u kyselin jantarové a šťavelové a s oktanolem-1 a MIBK jako ředidly. Ke korelaci změřených dat byl použit matematický model zahrnující tvorbu komplexů kyselina:amin (1:2), (1:1), (2:1) a ((3:1), a fyzikální extrakci.
Classification
Type
Jx - Unclassified - Peer-reviewed scientific article (Jimp, Jsc and Jost)
CEP classification
CI - Industrial chemistry and chemical engineering
OECD FORD branch
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Result continuities
Project
Continuities
Z - Vyzkumny zamer (s odkazem do CEZ)
Others
Publication year
2004
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
Separation Science and Technology
ISSN
0149-6395
e-ISSN
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Volume of the periodical
39
Issue of the periodical within the volume
5
Country of publishing house
US - UNITED STATES
Number of pages
19
Pages from-to
1075-1093
UT code for WoS article
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EID of the result in the Scopus database
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Basic information
Result type
Jx - Unclassified - Peer-reviewed scientific article (Jimp, Jsc and Jost)
CEP
CI - Industrial chemistry and chemical engineering
Year of implementation
2004