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(12) PATENT APPLICATION PUBLICATION
(19) INDIA (21) Application No.: 1249/MUM/2004 A
(22) Date of filing of Application: 19/11/2004 (43) Publication Date: 09/06/2006
(54) Title of the invention: COUNTERFLOW COLUMN WITH A LIQUID DISTRIBUTOR
(51) International classification : B01D 3/00,
B01D 53/18,
B01D 3/00
(31) Priority Document No : 98 811 188.6
(32) Priority Date : 30/11/1998
(33) Name of priority country : EPO
(86) International Application No : NIL
and Filing Date : NIL
(87) International Publication No : NIL
(61) Patent of addition to :
Application No
NIL
(62)
Filed on : N.A.
Divisional to Application No : 726/BOM/1999
Filed on : 26/10/1999
(71) Name of Applicant:
SULZER CHEMTECH AG
Address of the Applicant:
HEGIFELDSTRASSE 10, CH-8404
WINTERTHUR, SWITZERLAND.
(72) Name of the Inventor:
1. MARKUS FISCHER
2. PELIX MOSER
Filed U/S 5(2) before The Patents
(Amendment) Act, 2005: NO
(57) Abstract: The counterflow column (1) contains a liquid distributor (2) having a plurality of tubular or troughlike
distributor members (21). These distributor members are arranged in a column above a packing (3) in such a
manner that a plurality of partial flows (40) develop in an upwardly flowing gas (4) at the level of the distributor
members. Stagnation zones (45) are present between the packing and the distributor members. Through additional
means (24), which are not required per se for a liquid output, the stagnation zones and/or the flow of a liquid (5) to
be distributed are influenced in such a manner that a liquid (50), after emerging from the distributor members and
prior to entry into the packing, traverses in free fall the stagnation zones and where appropriate also further regions
in which the gas flow is largely free of horizontal velocity components. The gas flow can also be influenced by
means of a suitable shaping of the distributor members.
Drawing: 03 Sheets.
Total Pages: 14.
Fig. Nil
The Patent Office Journal 09/06/2006 10915