专利名称：COMPOSITIONS OF FATTY ACID ESTERS OF
HEXITANS
发明人：BESHOURI, Sharon, Marie,ADAMSKI, Robert,
Paul
申请号：EP93923493.6申请日：19931014公开号：EP0664730B1公开日：19960403
摘要：The invention relates to a composition composed of fatty acid esters of
hexitans (sorbitans) and non-esterified polyols, having a content of non-esterified polyolsin the range of 6.59 wt. % to 0.05 wt. %, and to a process for purification by removingnon-esterified polyols from a composition composed of fatty acid esters of hexitans andnon-esterified polyols, which process comprises the steps of: a) dissolving saidcomposition in a solution comprising at least one hydrocarbon and at least one polarorganic solvent to produce an organic solution of said composition; b) mixing or
contacting said organic solution with an aqueous solution of at least one metal salt underconditions effective to extract said non-esterified polyols; and c) separating said organicsolution from the aqueous solution, optionally followed by the recovery of the purifiedfatty acid esters of hexitans.
申请人：SHELL OIL CO
地址：US
国籍：US
代理机构：Ellis-Jones, Patrick George Armine
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