Dust-free plasma spheroidization

Plastic and nonmetallic article shaping or treating: processes – Formation of solid particulate material directly from molten... – By extrusion spraying or gravity fall through orifice

Patent

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

264 15, B01J 216

Patent

active

042462088

ABSTRACT:
A method of manufacturing dust-free spheroidized magnetite beads comprising the steps of introducing raw magnetic ore particles in the presence of an inert non-oxidizing carrier gas to a carbon arc plasma flame assembly to which is fed a controlled amount of nitrogen and argon gas, melting the ore particles to form spheroidized droplets thereof, allowing the spheroidized droplets to fall by gravity in a chamber having a controlled atmosphere while at the same time sweeping the inside chamber wall with a vertical flow of air or an inert gas and providing a horizontal curtain of air or an inert gas at a specific location within the chamber to remove dust formed in the process. The droplets are cooled forming beads of ore, which may be used as a xerographic carrier without further processing.

REFERENCES:
patent: 3313602 (1967-04-01), Smith et al.
patent: 3836611 (1974-09-01), Mavrovic
patent: 4019842 (1977-04-01), Forgensi

LandOfFree

Say what you really think

Search LandOfFree.com for the USA inventors and patents. Rate them and share your experience with other people.

Rating

Dust-free plasma spheroidization does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Dust-free plasma spheroidization, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Dust-free plasma spheroidization will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFUS-PAI-O-1766488

  Search
All data on this website is collected from public sources. Our data reflects the most accurate information available at the time of publication.