고순도 1,4-솔비탄을 이용한 비이온 솔비탄 모노스테아르산 합성
Synthesis of Nonionic Sorbitan Monostearate using High Purity 1,4-sorbitan
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Nonionic sorbitan monostearate have been successfully prepared by esterification using 1,4-sorbitan and stearic acid. 1,4-sorbitan were prepared using D-sorbitol and acid catalyst at solvent-free conditions. The synthesized surfactants were characterized by NMR and FT-IR. We also investigated the effect of temperature, pressure and catalyst on the synthesis of nonionic sorbitan monostearate. The yields of 1,4-sorbitan were 90% at 160℃ under 160 mmHg vacuum, and the yields of nonionic sorbitan monostearate were 92% at 230℃ under 60 mmHg vacuum.
Abstract
Nonionic sorbitan monostearate have been successfully prepared by esterification using 1,4-sorbitan and stearic acid. 1,4-sorbitan were prepared using D-sorbitol and acid catalyst at solvent-free conditions. The synthesized surfactants were characterized by NMR and FT-IR. We also investigated the effect of temperature, pressure and catalyst on the synthesis of nonionic sorbitan monostearate. The yields of 1,4-sorbitan were 90% at 160℃ under 160 mmHg vacuum, and the yields of nonionic sorbitan monostearate were 92% at 230℃ under 60 mmHg vacuum.
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