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1.发明授权Separating acrylonitrile or methacrylonitrile from mixtures containing the same 失效从含有它们的混合物中分离出丙烯腈或甲基丙烯腈
公开(公告)号：US3374263A
公开(公告)日：1968-03-19
申请号：US43053565
申请日：1965-02-05
Applicant: BASF AG
Inventor： HANS-MARTIN WEITZ , HANS FRITZ , ROLF PLATZ
IPC: C07C20060101
CPC classification number: C07C253/34 , C07C255/08
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