EP 1481115 B1 20051207 - GRAPHITIZED CATHODE BLOCKS
Title (en)
GRAPHITIZED CATHODE BLOCKS
Title (de)
GRAPHITIERTE KATHODENBLÖCKE
Title (fr)
BLOCS CATHODIQUES GRAPHITES
Publication
Application
Priority
- DE 10164008 A 20011228
- EP 0214548 W 20021219
Abstract (en)
[origin: DE10164008C1] Disclosed are graphitized cathode blocks for producing aluminum by electrolytically reducing aluminum oxide in a molten cryolite bath. The electrical resistance of the inventive cathode blocks has a V-shaped profile across the length of the cathode blocks, increases towards the ends, and has a place of discontinuity in the middle thereof. Also disclosed are a method for the production of said cathode blocks and the use thereof for producing aluminum.
[origin: DE10164008C1] Graphitized cathode block is composed of two parts and has a V-shaped profile of its electrical resistance over its length. The resistance has a discontinuity site in the center of the block and increases to the ends so that the ratio of the resistance on the ends of the parts to the resistance in the center is 1.05: 1. An Independent claim is also included for the production of the graphitized cathode block. Preferably the contact surfaces of the parts of the block are connected by mechanical pressing or by using a stamping composition or by adhering the contact surfaces.
IPC 1-7
IPC 8 full level
C25C 3/08 (2006.01)
CPC (source: EP)
C25C 3/08 (2013.01)
Designated contracting state (EPC)
DE FR GB
DOCDB simple family (publication)
DE 10164008 C1 20030430; AR 037912 A1 20041222; AU 2002361174 A1 20030715; BR 0215323 A 20041019; CA 2470753 A1 20030710; DE 50205232 D1 20060112; EP 1481115 A2 20041201; EP 1481115 B1 20051207; PL 201672 B1 20090430; PL 369969 A1 20050502; WO 03056068 A2 20030710; WO 03056068 A3 20040930
DOCDB simple family (application)
DE 10164008 A 20011228; AR P020104963 A 20021218; AU 2002361174 A 20021219; BR 0215323 A 20021219; CA 2470753 A 20021219; DE 50205232 T 20021219; EP 0214548 W 20021219; EP 02796687 A 20021219; PL 36996902 A 20021219