C - Chemistry – Metallurgy – 25 – C
Patent
C - Chemistry, Metallurgy
25
C
C25C 3/08 (2006.01) C04B 35/117 (2006.01) C04B 37/00 (2006.01) C04B 37/02 (2006.01) C09J 1/00 (2006.01)
Patent
CA 2155203
Bodies (3) such as tiles, plates, slabs or bricks of Refractory Hard Material (RHM) or other refractory composites are bonded to the cathodes or to other components, in particular to a carbon cell bottom (1), of a cell for the production of aluminium by electrolysis of a cryolite-based molten electrolyte, made of carbonaceous or other electrically conductive refractory material, by a non-reactive colloidal slurry (4) comprising particulate performed RHM in a colloidal carrier selected from colloidal alumina, colloidal yttria and colloidal ceria. The slurry usually comprises preformed particulate TiB2 in colloidal alumina. The bodies (3) are usually TiB2-Al2O3 composites. The bonding is achieved simply by applying the slurry and allowing it to dry.
Gowling Lafleur Henderson Llp
Moltech Invent S.a.
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