发明名称 |
PROCESS AND APPARATUS FOR RECOVERY OF DICHLOROHYDRINS VIA CODISTILLATION |
摘要 |
A process and apparatus for recovering dichlorohydrins from a mixture comprising dichlorohydrins, one or more compounds selected from esters of dichlorohydrins, monochlorohydrins and/or esters thereof, and multihydroxylated-aliphatic hydrocarbon compounds and/or esters thereof, and optionally one or more substances comprising water, chlorinating agents, catalysts and/or esters of catalysts is disclosed. The mixture is stripped to recover dichlorohydrin(s) while distilling or fractionating the mixture to separate a lower boiling fraction comprising dichlorohydrin(s) from the mixture in one step. Advantages include more efficient recovery of dichlorohydrins for a given distillation column, less waste due to avoiding the conditions conducive to the formation of heavy byproducts, and reduced capital investment in recovery equipment. |
申请公布号 |
EP2137123(A1) |
申请公布日期 |
2009.12.30 |
申请号 |
EP20080745562 |
申请日期 |
2008.04.11 |
申请人 |
DOW GLOBAL TECHNOLOGIES INC. |
发明人 |
TIRTOWIDJOJO, DANIL;MERENOV, ANDREI, S.;KNEUPPER, CHRISTIAN, D.;HOOK, BRUCE, D.;MEHTA, ANIL, J. |
分类号 |
B01D3/00;B01D3/14;B01D3/38;C07C29/82 |
主分类号 |
B01D3/00 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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