公开(公告)号：JPH09168702A

公开(公告)日：1997-06-30

申请号：JP21759696

申请日：1996-08-19

Applicant: BASF AG

Inventor： GEERUHARUTO ARUTEINGAA ,  HORUSUTO EGURII ,  FURITSUTSU TEIISEN ,  RUDORUFU KAIZAA

IPC: B01D3/22 ,  B01D3/32 ,  B01J19/32 ,  C07C51/42 ,  C07C57/04

Abstract: PROBLEM TO BE SOLVED: To provide a column tray for a mass transfer shelf stage column capable of avoiding the stagnation of a liquid penetrating into the fine gaps of a tray constitutional element and the undesirable physical and chemical change of a liquid substance caused by the stagnation. SOLUTION: The greater part of a plate member constituting a tray, especially, the whole thereof and a support member or a support annular member are liquidtightly bonded, especially, welded in an especially distinguished zone or the greater part of the support member, especially, the whole therof is mutually bonded, especially, welded to the wall of a shelf stage column or the support annular member in a liquidtight manner in the especially distinguished zone. Furthermore, the tray plate member and the support member adjacent to each other are mutually isolated so as to leave an interval of 1-15mm, especially, 1-7mm with respect to the column wall or the support annular member.