Process and apparatus for carrying out the first stage of...

Details Process and apparatus for carrying out the first stage of... Process and apparatus for carrying out the first stage of...

B - Operations, Transporting

01

D

202/115

B01D 3/14 (2006.01)

Patent

CA 1157420

ABSTRACT OF THE DISCLOSURE The present invention relates to a process for carrying out the first stage of separation of constituents of a reaction mixture obtained during synthesis of asym- metric dimethylhydrazine by the Raschig method, consisting in sending, into an empty central section (B) of a column, the reaction mixture coming from said synthesis, this central section being surmounted by a column (C) in which is effected separation of the volatile compounds contain- ed in said mixture and being extended downwardly by an exhausting section (A).

378914

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