[12] Patent
[11] Patent No.:GC0004546  
[45] Date of Publishing the Grant of the Patent: 31/Dec /2016                32/2016  
Number of the Decision to Grant the Patent:2016/89780
Date of the Decision to Grant the Patent:19/Dec/2016

[21] Application No.:GC 2011-17603

[22] Filing Date:19/1/2011

[30] Priority:

[33] State [32] Priority date [31] Priority No.
EP
21/1/2010
10151325.7

[72] Inventor: Geir Wedde

[73] Owner: GENERAL ELECTRIC TECHNOLOGY GmbH, Brown Boveri Strasse 7, CH-5400, Baden, Switzerland

[74] Agent: Abu-Gazaleh Intellectual Property L.L.C

  

 

  

[51]IPC:
Int. Cl.: C25C3/22 (2006.01)

[56] Cited Documents:

-US 3 664 935 A (JOHNSON ARTHUR F)23 May 1972
-DE 198 45 258 C1 (HAMBURGER ALUMINIUM NERKGMBH [DE]) 16 March 2000
-US 2 947 673 A (OVROM SEM MATHIAS ET AL)2 August 1960
-US 5 814 127 A (LI YAO-EN [US])29 September 1998
 
Examiner: Eng. Ebrahim AlObody

[54] A METHOD OF VENTILATING AN ALUMINIUM PRODUCTION ELECTROLYTIC CELL
[57] Abstract: An aluminium production electrolytic cell (4) comprises a bath (8) with bath contents (8a), at least one cathode electrode (10) in contact with said contents (8a), at least one anode electrode (6) in contact with said contents (8a), and a hood (16), defining interior area (16a), covering at least a portion of said bath (8). The electrolytic cell (4) is equipped for vent gases to be drawn from said interior area (16a). The electrolytic cell (4) also comprises at least one heat exchanger (52) for cooling at least a portion of the vent gases drawn from interior area (16a), prior to circulation thereof to interior area (16a).
No. of claims: 15     No. of figures: 8


 

Note: Any interested individual may, within 3 months of publication of the grant, file objection thereof with the Grievance Committee after payment of grievance fees.