Compositions – Magnetic – Chromium or chromium compound containing
Patent
1985-01-29
1986-07-08
Lovering, Richard D.
Compositions
Magnetic
Chromium or chromium compound containing
252 6255, 252 6256, 252309, 252314, C04B 3526, B01J 1300
Patent
active
045991847
ABSTRACT:
A process for producing a ferromagnetic liquid comprising fine particles of a ferromagnetic material and a surface-active liquid, which comprises a step of heating said ferromagnetic material to evaporate it, and a step of bringing the resulting vapor of the ferromagnetic material into contact with the surface-active liquid being stirred.
REFERENCES:
patent: 3384589 (1968-05-01), Dunton
patent: 3531413 (1970-09-01), Rosensweig
patent: 3764540 (1973-10-01), Khalafalla et al.
patent: 4197347 (1980-04-01), Ogawa et al.
patent: 4356098 (1982-10-01), Chagnon
patent: 4416751 (1983-11-01), Berkowitz et al.
Masumoto Katashi
Nakatani Isao
Lovering Richard D.
National Research Institute
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