Heat stable yellow iron oxides

Details Heat stable yellow iron oxides Heat stable yellow iron oxides

1979-09-05

1981-09-22

Vertiz, O. R.

Chemistry of inorganic compounds

Oxygen or compound thereof

Metal containing

423633, C01F 730, C01G 4902

Patent

active

042910102

ABSTRACT:
Synthetic yellow iron oxide (.alpha.-FeOOH) is dispersed in an aqueous ferric solution, and an adequate alkali solution and an aqueous aluminum salt solution are added. The resultant dispersion is subjected to a hydrothermal treatment at 150.degree.-250.degree. C. By this treatment, the surface of the synthetic yellow iron oxide is covered with a (FeAl)OOH (solid solution). Yellow iron oxides treated thus have an elevated resistivity to heat of about 50.degree. C. The modified synthetic yellow iron oxide thus obtained is non-toxic and can be used as a pigment in plastics and melt-type traffic paint.

REFERENCES:
patent: 3382174 (1968-05-01), Hund et al.
patent: 3947502 (1976-03-01), Leitner et al.
patent: 3969494 (1976-07-01), Nobuoka et al.
patent: 4006090 (1977-02-01), Beck
patent: 4140539 (1979-02-01), Hund et al.
Ervin and Osborn, J. Geology, vol. 59 (1951).
T. Ando, Powder and Powder Metallurgy, vol. 13, No. 1 (1966).

Affiliated with

Also associated with

Rating

Heat stable yellow iron oxides does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Heat stable yellow iron oxides, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Heat stable yellow iron oxides will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-335081