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Synthesis and evaluation of polytriethanolamine monooleates for oil‐based muds
Author(s) -
Hafiz A. A.,
Abdou M. I.
Publication year - 2003
Publication title -
journal of surfactants and detergents
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.349
H-Index - 48
eISSN - 1558-9293
pISSN - 1097-3958
DOI - 10.1007/s11743-003-0268-z
Subject(s) - triethanolamine , chemistry , trimer , hydrolysis , organic chemistry , oleic acid , cottonseed oil , base oil , dimer , chromatography , seal (emblem) , biochemistry , food science , analytical chemistry (journal) , art , visual arts
New emulsifiers were developed by esterification of polytriethanolamine based on the dimerization and trimerization of triethanolamine. The dimer and trimer were esterified with oleic acid to prepare monoesters of di‐triethanolamine and tri‐triethanolamine. The synthesized esters were evaluated as water‐in‐oil emulsifiers in oil‐based muds, which are the circulating fluids used in rotary drilling to perform various functions required in the drilling operation, such as control of density, flow, and filtration properties. The dimer and trimer of triethanolamine were also esterified with hydrolyzed cottonseed oil, and the resulting esters were evaluated as commercial emulsifiers for oil‐base muds.