G - Physics – 01 – R
Patent
G - Physics
01
R
324/55
G01R 33/00 (2006.01) B03B 5/44 (2006.01) B03B 13/00 (2006.01) B03C 1/00 (2006.01) G01N 15/04 (2006.01) G01N 27/72 (2006.01)
Patent
CA 1158722
TESTING METHOD FOR DETERMINING THE MAGNETIC PROPERTIES OF FERROMAGNETIC POWERS ABSTRACT OF THE DISCLOSURE: The invention relates to a method permitting ferromagnetic powders for use in heavy medium suspensions for the float-sink dressing of minerals to be readily tasted as to their efficiency in magnetic separation and demagnetization. To this end, the invention provides a) for a heavy medium suspension specimen to be re- moved from the purification cycle directly down- stream of the magnetic separation stage, for it to be freed from impurities by decantation, and its relative sedimentation velocity to be determined with the aid of a sedimentometer; b) for a heavy medium suspension specimen to be removed from the purification cycle downstream of the de- magnetization stage, for it to be freed from impurities by decantation, and for its relative sedimentation velocity to be determined with the aid of a sedimentometer; and c) for the heavy medium suspension specimen according to b) to be demagnetized in a cyclicly decreasing magnetic alternating field with a maximum field strength which is 1.1 to 1.5 times the maximum field strength of the magnetic separator, and for the relative sedimentation velocity of the specimen to be determined with the aid of sedimentometer. The ferromagnetic powder is reliably separable magnetically and demagnetizable with the aid of a demagnetizing means in the event of the relative sedimentation velocity according to a) being at least ten times greater than the relative sedimentation velocity according to c), and the relative sedimentation velocity according to c) being at most 10 % lower than that according to b).
376635
Kramer Horst
Uhle Karlheinz
Fetherstonhaugh & Co.
Hoechst Aktiengesellschaft
LandOfFree
Testing method for determining the magnetic properties of... does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Testing method for determining the magnetic properties of..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Testing method for determining the magnetic properties of... will most certainly appreciate the feedback.
Profile ID: LFCA-PAI-O-459521