发明名称 |
Drying and purification of benzanthrone |
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.
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申请公布号 |
US5281729(A) |
申请公布日期 |
1994.01.25 |
申请号 |
US19920928607 |
申请日期 |
1992.08.13 |
申请人 |
BASF AKTIENGESELLSCHAFT |
发明人 |
BORHO, KLAUS;GRAMMATIS, ZAFIRIOS;HENNICKE, KARL-HEINZ;MACH, WOLFGANG;MAYER, KARL;SARTOR, KARL-HEINZ;STEGE, WOLF D.;THOMA, PETER;VOLLMERHAUS, EWALD |
分类号 |
C09B3/02;C09B67/06;C09B67/54;(IPC1-7):C09B3/02 |
主分类号 |
C09B3/02 |
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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