C - Chemistry – Metallurgy – 04 – B
Patent
C - Chemistry, Metallurgy
04
B
C04B 35/52 (2006.01) B28B 1/08 (2006.01) C04B 35/528 (2006.01) C04B 37/00 (2006.01) C25C 3/08 (2006.01) C25C 3/12 (2006.01)
Patent
CA 2137817
A carbon containing paste for use in particular as components of electrolytic cells as such or compacted to form anodes, cathodes and cell linings of cells for the electrolysis of alumina for the production of aluminium, consists of a compact mixture of one or more particulate carbonaceous material(s) with a non-carbonaceous non- polluting binder and optionally with one or more fillers, especially alumina and aluminium, the binder being a suspension of one or more colloids such as colloidal silica, alumina, yttria, ceria, thoria, zirconia, magnesia, lithia or being derived from one or more colloid precursors or colloid reagents optionally with one or more chelating agents. Cell components are produced by forming the paste to a desired shape and size, for instance in a mold, an injection die or in a cell bottom, compacting and drying before use, or the paste can be used as such like in a Soderberg type anode, or for bonding together carbon blocks like a ramming paste.
de Nora Vittorio
Sekhar Jainagesh A.
Gowling Lafleur Henderson Llp
Moltech Invent S.a.
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