Calcining effect of synthetic iron oxide

Compositions: coating or plastic – Materials or ingredients – Miscellaneous

Patent

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

C09C 124

Patent

active

042216079

ABSTRACT:
Copperas solution is purified and mixed with a silica-containing material, such as fumed silica. The mixture is then dried to give a monohydrate (FeSO.sub.4.H.sub.2 O)/silica material. Calcination of this substance results in a copperas red oxide having improved color characteristics and lower losses due to uncalcined sulfate. The amount of silica added is 0.25-10 wt. %, based on the finished oxide product.

REFERENCES:
patent: 2184738 (1939-12-01), Fireman
patent: 2394579 (1946-02-01), Ayers
patent: 2416138 (1947-02-01), Ayers
patent: 2620261 (1952-12-01), Toxby
patent: 2980617 (1961-04-01), Ireland
patent: 3005724 (1961-10-01), Seabright
patent: 3009821 (1961-11-01), Bennetch
patent: 3650783 (1972-03-01), Yates
patent: 3832455 (1974-08-01), Smith et al.
patent: 3947502 (1976-03-01), Leitner
patent: 4136158 (1979-01-01), Okuda et al.

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

Calcining effect of synthetic iron 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 Calcining effect of synthetic iron oxide, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Calcining effect of synthetic iron oxide will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFUS-PAI-O-2223241

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