METHOD OF RECOVERING ETHYLENE OXIDE FROM ETHYLENE OXIDE-CONTAINING MEDIUM
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...
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| creator | BESSLING BERND KHIL'PREKHT LUTTS AUEHR KHAJNTS BRUDI GERKHARD MAJER TOMAS GIZEL'BERG KLAUS POL'T AKSEL' VERNER SHOLL' SHTEFAN SHPIGEL' GJUNTER BALLENVEG RUBENS TERJUNG VINFRID LEFFLER UL'RIKH TSEK SEBASTIAN PLJUKKHAN JURGEN |
| description | 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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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. 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| subjects | CHEMISTRY HETEROCYCLIC COMPOUNDS METALLURGY ORGANIC CHEMISTRY PERFORMING OPERATIONS PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL SEPARATION TRANSPORTING |
| title | METHOD OF RECOVERING ETHYLENE OXIDE FROM ETHYLENE OXIDE-CONTAINING MEDIUM |
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