Post treatment of cdon/cdol mixture by a pair of lateral taking off column
    3.
    发明专利
    Post treatment of cdon/cdol mixture by a pair of lateral taking off column 有权
    通过横向离开柱的对头后处理CDON / CDOL混合物

    公开(公告)号:JP2014118413A

    公开(公告)日:2014-06-30

    申请号:JP2013260568

    申请日:2013-12-17

    Abstract: PROBLEM TO BE SOLVED: To provide a method of obtaining pure cyclododecanone (CDON) from a mixture containing a low boiling point component, CDON, a middle boiling point component (MB), cyclododecanol (CDOL) and a high boiling point component (HB).SOLUTION: A low boiling point component LB is separated by a distillation column 6 from a mixture O obtained by oxidation 1 of cyclododecanone (CDAN) and dehydrogenation 5 of the produced CDOL, a first mixture ABC1 containing CDON, MB, CDOL and HB obtained from a bottom of the column is supplied to a first lateral taking off column 7, a fraction A1 is removed from a top of the column, a column bottom liquid C1 containing CDOL and HB is removed, a second mixture ABC2 containing CDON, CDOL and MB is supplied from the lateral taking off part to a second lateral taking off column 8, a fraction A2 is removed from the top of column, a column bottom liquid C2 containing CDOL and HB is removed, a third mixture ABC3 is removed from the lateral taking off part, A1 and A2 is combined and object fraction A containing increased CDON is obtained.

    Abstract translation: 要解决的问题:提供从含有低沸点组分CDON,中沸点组分(MB),环十二烷醇(CDOL)和高沸点组分(HB)的混合物中获得纯环十二烷酮(CDON)的方法, 解决方案:低沸点组分LB由通过环十二烷酮(CDAN)的氧化1获得的混合物O和所制备的CDOL的脱氢5分离出的蒸馏塔6,得到含有CDON,MB,CDOL和HB的第一种混合物ABC1 从塔的底部供给到第一横向取出塔7,从塔的顶部除去馏分A1,除去含有CDOL和HB的塔底液C1,含有CDON,CDOL的第二混合物ABC2和 MB从横向取出部分提供到第二横向取出塔8,从塔顶部除去馏分A2,除去含有CDOL和HB的塔底液C2,从侧面除去第三混合物ABC3 拿o ff部分,A1和A2组合,并且获得包含增加的CDON的目标分数A.

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