Manufacture of .gamma.-iron(III) oxide

Details Manufacture of .gamma.-iron(III) oxide Manufacture of .gamma.-iron(III) oxide

1976-08-30

1977-10-04

Vertiz, O. R.

Compositions

Magnetic

Iron-oxygen compound containing

423634, C01G 4902

Patent

active

040523268

ABSTRACT:
A process for the manufacture of acicular .gamma.-iron(III) oxide of improved crystallinity and high coercive force by heating goethite or acicular alpha-iron(III) oxide particles at temperatures of from 500.degree. to 800.degree. C, reduction of the resulting product at temperatures of from 280.degree. to 600.degree. C and subsequent oxidation of the magnetite to .gamma.-iron(III) oxide of improved crystallinity and high coercive force.

REFERENCES:
patent: 3897354 (1975-07-01), Woditsch et al.
patent: 3974246 (1976-08-01), Chen et al.

Affiliated with

Also associated with

Rating

Manufacture of .gamma.-iron(III) oxide does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Manufacture of .gamma.-iron(III) oxide, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Manufacture of .gamma.-iron(III) oxide will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1773727