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    • 76. 发明授权
    • Azeotropic purification of Z-11-hexadecenal
    • Z-11-十六烯醛共沸净化
    • US4559111A
    • 1985-12-17
    • US684208
    • 1984-12-20
    • Charles A. Drake
    • Charles A. Drake
    • B01D3/38C07C45/27C07C45/84B01D3/36C07C47/21
    • C07C45/27B01D3/38C07C45/84
    • Production of essentially pure Z-11-hexadecenal by azeotropic distillation is described. Contacting a mixture of Z-11-hexadecenal, hexadecene and hexadecadiene with dimethylsulfoxide and subjecting the blend to azeotropic distillation allows for the removal of hydrocarbon impurities from the aldehyde. Contacting a mixture of Z-11-hexadecenal and hexadecenol with a C.sub.2 -C.sub.4 glycol and subjecting the blend to azeotropic distillation conditions allows for the recovery of a glycol-aldehyde azeotrope from which essentially pure aldehyde is readily recovered. A mixture comprising Z-11-hexadecenal, hexadecene, hexadecadiene and hexadecenol can be sequentially treated according to the above-described azeotropic distillation steps in order to provide essentially pure Z-11-hexadecenal.
    • 描述了通过共沸蒸馏生产基本上纯的Z-11-十六烯醛。 将Z-11-十六碳烯,十六碳烯和十六碳二烯与二甲基亚砜的混合物接触并使共混物进行共沸蒸馏,可以从醛中除去烃类杂质。 将Z-11-十六碳烯和十六碳烯醇的混合物与C 2 -C 4二元醇接触并使共混物共沸蒸馏条件允许回收二醇 - 醛共沸物,从其中容易回收基本上纯的醛。 可以根据上述共沸蒸馏步骤依次处理包含Z-11-十六碳烯醛,十六碳烯,十六碳二烯和十六碳烯醇的混合物,以提供基本上纯的Z-11-十六烯醛。