发明名称 |
METHOD OF RECOVERING ETHYLENE OXIDE FROM ETHYLENE OXIDE-CONTAINING MEDIUM |
摘要 |
chemical engineering. SUBSTANCE: method involves distillation of initial medium in column and withdrawal of (i) pure ethylene oxide in liquid or gas state from the top section of column and through lateral tap-off disposed in the concentrating section of column and (ii) bottom product. In emergency situations, a fire-extinguishing means is supplied to the column. Process is characterized by that the distillation column is operated at pressure 2 to 10 bar and temperature from 20 to 180 C. Mixture is passed through several in-series disposed zones with structured metal sheet inserts or charge beds arranged within the column, from which at least one zone is connected to a water source. Water functions as ethylene oxide-miscible fire- extinguishing means, which raises pressure in the column by 0.01 to 4 bar. EFFECT: optimized process parameters. 8 cl, 1 dwg
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申请公布号 |
RU2181721(C2) |
申请公布日期 |
2002.04.27 |
申请号 |
RU19980111932 |
申请日期 |
1996.11.05 |
申请人 |
BASF AG |
发明人 |
BESSLING BERND;TSEK SEBASTIAN;PLJUKKHAN JURGEN;MAJER TOMAS;LEFFLER UL'RIKH;SHPIGEL' GJUNTER;BALLENVEG RUBENS;BRUDI GERKHARD;GIZEL'BERG KLAUS;KHIL'PREKHT LUTTS;TERJUNG VINFRID;AUEHR KHAJNTS;POL'T AKSEL' VERNER;SHOLL' SHTEFAN |
分类号 |
B01D3/00;B01D3/16;C07D301/32;C07D303/02;C07D303/04;(IPC1-7):C07D301/32 |
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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