Electrolysis: processes – compositions used therein – and methods – Electrolytic synthesis – Utilizing fused bath
Patent
1994-10-21
1996-04-23
Gorgos, Kathryn
Electrolysis: processes, compositions used therein, and methods
Electrolytic synthesis
Utilizing fused bath
204290R, 205231, C25C 312
Patent
active
055100082
ABSTRACT:
An anode for the electrowinning of aluminium by the electrolysis of alumina dissolved in a molten fluoride electrolyte comprises a porous combustion synthesis product of nickel, aluminium, iron, copper and optional doping elements in the amounts 60-90 wt % nickel, 3-10 wt % aluminium, 5-20 wt % iron, 0-15 wt % copper and 0-5 wt % of one or more of chromium, manganese, titanium, molybdenum, cobalt, zirconium, niobium, yttrium, cerium, oxygen, boron and nitrogen. The combustion synthesis product contains metallic and intermetallic phases. A composite oxide surface is produced in-situ by anodic polarization of the porous combustion synthesis product in a molten fluoride electrolyte containing dissolved alumina. The in-situ formed composite oxide surface comprises an iron-rich relatively dense outer portion, and an aluminate-rich relatively porous inner portion.
REFERENCES:
patent: 4374050 (1983-02-01), Ray
patent: 4374761 (1983-02-01), Ray
patent: 4454015 (1984-06-01), Ray et al.
patent: 4614569 (1986-09-01), Duruz et al.
patent: 4620905 (1986-11-01), Tarcy et al.
patent: 4678760 (1987-07-01), Ray
patent: 4909842 (1990-03-01), Dunmead et al.
patent: 4948676 (1990-08-01), Darracq et al.
patent: 4956068 (1990-09-01), Nguyen et al.
patent: 4960494 (1990-10-01), Nguyen et al.
patent: 5069771 (1991-12-01), Nguyen et al.
patent: 5217583 (1993-06-01), Sekhar et al.
patent: 5284562 (1994-02-01), Beck et al.
patent: 5316718 (1994-05-01), Sekhar
patent: 5340448 (1994-08-01), Sekhar et al.
Duruz Jean-Jacques
Liu James J.
Sekhar Jainagesh A.
LandOfFree
Stable anodes for aluminium production cells does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Stable anodes for aluminium production cells, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Stable anodes for aluminium production cells will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-2305953