Title:
【発明の名称】共沸蒸留によるHFの分離方法
Document Type and Number:
Japanese Patent JP2815913
Kind Code:
B2
Abstract:
Process for the separation of hydrogen fluoride (HF), 2,2-dichloro-1,1,1-trifluoroethane (FC-123), and/or 2-chloro-1,1,1,2-tetrafluoroethane (FC-124) from mixtures comprising them by controlling the molar ratio of HF/FC-123 in the mixture prior to subjecting the mixture to azeotropic distillation.
Inventors:
Leo Ernest Manzer
Berry Your Not Marika Juna Rao
Richard T. Rockwell
Michael Andrew Sisk
Edwin James Worwas
Roy Winteringham
Berry Your Not Marika Juna Rao
Richard T. Rockwell
Michael Andrew Sisk
Edwin James Worwas
Roy Winteringham
Application Number:
JP20015689A
Publication Date:
October 27, 1998
Filing Date:
August 01, 1989
Export Citation:
Assignee:
E.I.DU PONT DE NEMOURS AND COMPANY
International Classes:
C01B7/19; C07C17/38; C07C17/383; C07C19/08; B01D3/36; C07C22/00; (IPC1-7): C01B7/19; B01D3/36; C07C17/383; C07C19/08
Attorney, Agent or Firm:
Yoshikazu Tani (2 outside)