Chemistry of carbon compounds – Miscellaneous organic carbon compounds – C-metal
Patent
1976-10-27
1978-02-21
Holler, Alan
Chemistry of carbon compounds
Miscellaneous organic carbon compounds
C-metal
203 39, 203 77, 526 68, 526 77, C08F29708, C08F 600, B01D 300, B01D 310
Patent
active
040752879
ABSTRACT:
A stream containing at least one noncondensible, under ordinary pressure and temperature, component and at least two components which are condensible under ordinary pressure and temperature are separated by subjecting said stream to successive fractional distillation conditions to successively remove highest boiling components. An overhead produced in one fractional distillation zone is introduced as a feed into the next fractional distillation zone. The penultimate overhead comprising only the noncondensible and a lowest boiling condensible component is partially condensed. The liquid phase is introduced onto the top tray of a last fractionation zone and the vapor phase is introduced below the top tray. A vapor stream containing a single condensible component and at least one noncondensible can be separated in the same manner as the penultimate overhead of a multi-component mixture. The method of this invention can be utilized for separation of hydrogen from a mixture of unreacted propylene and ethylene in a copolymerization reaction.
REFERENCES:
patent: 3403080 (1968-09-01), Clay
patent: 3644583 (1972-02-01), Scoggin
patent: 3654094 (1972-04-01), Yamagishi et al.
Holler Alan
Phillips Petroleum Company
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