Method at treatment of metals

Details Method at treatment of metals Method at treatment of metals

1996-11-27

1998-09-22

Warden, Jill

Cleaning and liquid contact with solids

Processes

For metallic, siliceous, or calcareous basework, including...

134 3, 134 10, C23G 108, C23G 136

Patent

active

058109390

ABSTRACT:
The invention relates to a method for pickling steel in an acidic aqueous pickling solution containing Fe.sup.3+ and Fe.sup.2+, wherein the steel is contacted with pickling solution that continuously is brought to circulate through a conduit into which hydrogen peroxide is supplied to oxidize Fe.sup.2+ to Fe.sup.3+.

REFERENCES:
patent: 3622478 (1971-11-01), Beyer
patent: 3962005 (1976-06-01), Lerner
patent: 4938838 (1990-07-01), Dalin et al.
patent: 5154774 (1992-10-01), Bousquet et al.
patent: 5354383 (1994-10-01), Bianchi
abstract of "Nonpolluting and regeneratable rust-removing agent for iron and steel" Zhu et al., (CN 1,054,102) 28 Aug. 1991, Chemical Abstracts, vol. 116, No. 22, 1 Jun. 1992 (116:219062u).
abstract of Japanese Patent No. 55-138081, 28 Oct. 1980, "Descaling Method for Steel or Stainless Steel" Tsuyoshi et al. Patent Abstracts of Japan.
abstract of Japanese Patent No. 63-216986, 09 Sep. 1988, "High-Speed Pickling Method for Low CR Steel" Hideaki et al. Patent Abstracts of Japan. Sep. 1988.
abstract of "Pickling of Austenitic Stainless Steel" Ryozo et al., Japanese Kokai No. 75,133,125, 22 Oct. 1975 Chemical Abstracts, vol. 84 (1976) p. 256 (84:139369e).

Affiliated with

Also associated with

Rating

Method at treatment of metals does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Method at treatment of metals, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method at treatment of metals will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1619349