C - Chemistry – Metallurgy – 25 – C
Patent
C - Chemistry, Metallurgy
25
C
C25C 3/12 (2006.01) C25C 3/08 (2006.01)
Patent
CA 2496518
A material suitable for use for structural components in a cell for the electrolytic reduction of alumina to aluminium metal defined either by: .bullet. the formula (A'l-uA"u)x(B'l-vB"v)y(C'l-wC"w)zO4, in which A' and A" are divalent elements from the group Co, Ni, or Zn, B' and B" are trivalent elements from the group Al, Cr, Mn, or Fe, and C' and C" are the tetravalent elements Ti or Sn. O is the element oxygen. 0<= u<1, 0<= v<1, 0<= w<1 1<= x <=2, 0 <= y <= 2 and 0<= z <=1, x+y+z = 3 and 2x+3y+4z = 8, or .bullet. the formula A'1-SA"sTi03, in which A' and A" are divalent elements from the group Co, Ni, or Zn. O is the element oxygen. 0 <= s<1 or .bullet. the formula A'l- tA"tO, in which A' and A" are divalent elements from the group Co, Ni, or Zn. O is the element oxygen. 0 <= t<1.
L'invention concerne un matériau s'utilisant dans une cellule de réduction électrolytique d'alumine en métal aluminium, défini soit par : la formule (A'¿l-u?A''¿u?)¿x?(B'¿l-v?)¿y?(C'¿l-w?C''¿w?)¿z?O¿4?, dans laquelle A' et A'' sont des éléments bivalents du groupe Co, Ni, ou Zn, B' et B'' sont des éléments trivalents du groupe La, Cr, Mn, ou Fe, et C' et C'' sont des élément tétravalents Ti ou Sn. O est l'élément oxygène. 0<=u<1, 0<=v<1, 0<=w<1, 0<=x<=2, 0<=y<=2 et 0<=z<=1, x+y+z = 3 et 2x+3y+4z = 8 ; la formule A'¿l-s?A''¿s?Tio¿3?, dans laquelle A' et A'' sont des éléments bivalents du groupe Co, Ni, ou Zn. O est l'élément oxygène. 0<=s<1 ou par la formule A'¿l-t?A''¿t?O, dans laquelle A' et A'' sont des éléments bivalents du groupe Co, Ni, ou Zn. O est l'élément oxygène. 0<=t<1.
Julsrud Stein
Naas Tyke
Risdal Turid
Fetherstonhaugh & Co.
Norsk Hydro Asa
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