Title:
ペンタフルオロエタンの精製方法
Document Type and Number:
Japanese Patent JP4098856
Kind Code:
B2
Abstract:
A new purification process for pentafluoroethane (F125) containing chlorotrifluroethylene (F1113), is claimed. A current of the F 125 to be purified is passed over a bed of activated carbon. The active carbon has a surface area of 800 - 1500 m<2>/g and a microporosity of 50 - 90%(more preferably 70 - 85%). The operating conditions are -20 to +80 degrees C and 100 - 2200 kPa. For a gaseous phase operation, the flow rate of F125 corresponds to a VVH of 50 - 1500 v/h/v with a velocity of passing 10 - 2500 cm/mn, and for a liquid phase operation the flow rate of F125 is 4 - 20 v/h/v with a velocity of passing 5 - 40 cm/mn.
Inventors:
Rene Belttsucio
Andre Lantz
Andre Lantz
Application Number:
JP28231097A
Publication Date:
June 11, 2008
Filing Date:
October 15, 1997
Export Citation:
Assignee:
Atofina S.A.
International Classes:
C07C17/389; C07C19/08
Domestic Patent References:
| JP2268124A | ||||
| JP7300436A | ||||
| JP8508479A | ||||
| JP8099919A | ||||
| JP8081399A | ||||
| JP5271120A | ||||
| JP55002653A | ||||
| JP6092879A |
Foreign References:
| RU2049085A |
Attorney, Agent or Firm:
Yoshio Kawaguchi
Takeshi Funayama
Takeshi Funayama