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公开(公告)号:US5281729A
公开(公告)日:1994-01-25
申请号:US928607
申请日:1992-08-13
申请人: Klaus Borho , Zafirios Grammatis , Karl-Heinz Hennicke , Wolfgang Mach , Karl Mayer , Karl-Heinz Sartor , Wolf D. Stege , Peter Thoma , Ewald Vollmerhaus
发明人: Klaus Borho , Zafirios Grammatis , Karl-Heinz Hennicke , Wolfgang Mach , Karl Mayer , Karl-Heinz Sartor , Wolf D. Stege , Peter Thoma , Ewald Vollmerhaus
CPC分类号: C09B67/0096 , C09B3/02 , C09B67/0003
摘要: A continuous closed-system process for the environmentally friendly drying and purification of benzanthrone which comprises the steps of charging a benzanthrone-containing paste of pumpable consistency onto a melt held in a stirred kettle, dewatering and melting the paste by means of steam, condensing the water vapor emerging from the stirred kettle, flaking the melt from the stirred kettle by means of a rotating drum, and packaging the flaked solids.
摘要翻译: 一种用于环境友好的苯并蒽酮干燥和净化的连续封闭系统方法,其包括以下步骤:将可泵送稠度的含有苯属红酮的浆料装入保持在搅拌釜中的熔体上,通过蒸汽对该糊进行脱水和熔融, 从搅拌釜中出来的水蒸汽,通过旋转的鼓从搅拌的釜中分离出熔体,并包装片状固体。
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公开(公告)号:US1847200A
公开(公告)日:1932-03-01
申请号:US39422529
申请日:1929-09-21
申请人: EWALD VOLLMERHAUS
发明人: EWALD VOLLMERHAUS
IPC分类号: B21D7/024
CPC分类号: B21D7/024
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