Method of producing aluminum

Details Method of producing aluminum Method of producing aluminum

1985-07-12

1987-05-26

Williams, Howard S.

Chemistry: electrical and wave energy

Processes and products

75 63, 75 68R, 75 93R, C22B 910, C22B 2100, C25C 306, C25C 324

Patent

active

046683518

ABSTRACT:
A method of purifying aluminum contaminated with cerium or other rare earth metal comprises bringing the molten metal into contact with a halogenating agent. Preferred halogenating agents are aluminum fluoride for reducing cerium levels to around 0.1% to 0.3%, and chlorine gas for reducing cerium levels still further, and these may advantageously be used in sequence. Particulate aluminum fluoride may be introduced into the vortex of a stirred body of the molten metal. The controlled addition of chlorine may be effected by bubbling a mixture of chlorine and an inert gas into a body of the molten metal. The cerium contamination may arise from the use of a dimensionally stable anode comprising cerium dioxide in an aluminum reduction cell.

REFERENCES:
patent: 4470846 (1984-09-01), Dub/e/

Affiliated with

Also associated with

Rating

Method of producing aluminum does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Method of producing aluminum, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method of producing aluminum will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-701875