申请人:Great Lakes Chemical Corporation
公开号:US07268261B2
公开(公告)日:2007-09-11
Methods and materials are disclosed for the recovery of valuable hydrofluorocarbons and subsequent conversion to environmentally inert compounds. More specifically methods and materials are provided for recovering hydrofluorocarbons such as HFC-227, HFC-236, HFC-245, HFC-125, HFC-134, HFC-143, HFC-152, HFC-32, HFC-23 and their respective isomers. Processes are provided for converting hydrofluorocarbons such as these to fluoromonomer precursors such as CFC-217, CFC-216, CFC-215, CFC-115, CFC-114, CFC-113, CFC-112, HCFC-22, CFC-12, CFC-13 and their respective isomers. Materials, methods and schemes are provided for the conversion of these fluoromonomer precursors to fluoromonomers such as HFP, PFP, TFP, TFE, and VDF.
本发明公开了一种回收有价值的氢
氟碳化合物并将其转化为环境惰性化合物的方法和材料。更具体地,本发明提供了回收氢
氟碳化合物(例如HFC-227、HFC-236、HFC-245、HFC-125、H
FC-134、HFC-143、HFC-152、
HFC-32、HFC-23及其各自的异构体)的方法和材料。本发明提供了将这些氢
氟碳化合物转化为
氟单体前体(例如CFC-217、CFC-216、CFC-215、CFC-115、CFC-114、CFC-113、CFC-112、
HCFC-22、CFC-12、CFC-13及其各自的异构体)的过程。本发明提供了将这些
氟单体前体转化为
氟单体(例如
HFP、
PFP、
TFP、
TFE和VDF)的材料、方法和方案。