Magnesium removal from magnesium reduced metal powders

Details Magnesium removal from magnesium reduced metal powders Magnesium removal from magnesium reduced metal powders

2004-09-29

2008-10-07

Wyszomierski, George (Department: 1793)

Specialized metallurgical processes, compositions for use therei

Processes

Producing or purifying free metal powder or producing or...

C148S513000

Reexamination Certificate

active

07431751

ABSTRACT:
A method of producing a refractory metal powder that includes providing a metal powder containing magnesium tantalate or magnesium niobate; and heating the powder in an inert atmosphere in the presence of magnesium, calcium and/or aluminum to a temperature sufficient to remove magnesium tantalate or magnesium niobate from the powder and/or heating the powder under vacuum to a temperature sufficient to remove magnesium tantalate or magnesium niobate from the powder, the heating steps being performed in any order. The metal powder can be formed into pellets at an appropriate sintering temperature, which can be formed into electrolytic capacitors.

REFERENCES:
patent: 1602542 (1926-10-01), Marden
patent: 1728941 (1929-09-01), Marden et al.
patent: 2516863 (1950-08-01), Gardner
patent: 2881067 (1959-04-01), Hivert et al.
patent: 2950185 (1960-08-01), Hellier et al.
patent: 3647420 (1972-03-01), Restelli
patent: 3658507 (1972-04-01), Gohin et al.
patent: 5356120 (1994-10-01), König et al.
patent: 5448447 (1995-09-01), Chang
patent: 6171363 (2001-01-01), Shekhter et al.
patent: 6558447 (2003-05-01), Shekhter et al.
patent: 2002/0066338 (2002-06-01), Shekhter et al.
patent: 2002/0152842 (2002-10-01), Oda et al.
patent: 2003/0110890 (2003-06-01), He et al.
patent: 2004/0163491 (2004-08-01), Shekhter et al.
patent: 2 231 883 (1990-11-01), None

Affiliated with

Also associated with

Rating

Magnesium removal from magnesium reduced metal powders does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Magnesium removal from magnesium reduced metal powders, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Magnesium removal from magnesium reduced metal powders will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-4011515