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经营范围
发明名称
Verfahren zur Reinigung von durch Gasphasenoxidation von 1,2,4,5-tetraalkylierten Benzolen gewonnenem Pyromellitsaeuredianhydrid
摘要
申请公布号
DE1930011(A1)
申请公布日期
1970.12.23
申请号
DE19691930011
申请日期
1969.06.13
申请人
VEBA-CHEMIE AG
发明人
GUENTHER IBING,DR.;KURT NEUBOLD,DR.
分类号
C07C51/573
主分类号
C07C51/573
代理机构
代理人
主权项
地址
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