Succinic acid derivative degradable chelants, uses and compositi

Details Succinic acid derivative degradable chelants, uses and compositi Succinic acid derivative degradable chelants, uses and compositi

1996-10-23

1998-04-21

Utech, Benjamin

Coating processes

Immersion or partial immersion

Metal base

4274431, 4274432, B05D 518

Patent

active

057415552

ABSTRACT:
Polyamino disuccinic acids are effective chelants for use in photography and gas conditioning (both applications preferably involving the polyamino disuccinic acid in the form of a metal, preferably an iron complex). The copper chelates are also useful in electroless copper plating. In photography, the invention includes a method of bleaching or bleach-fixing a photographic material which comprises contacting said material with a bleaching solution containing a bleaching agent comprising a ferric complex of a polyamino disuccinic acid and the solution so used. In electroless deposition, the invention includes a method of electroless deposition of copper upon a non-metallic surface receptive to the deposited copper including a step of contacting the non-metallic surface with an aqueous solution comprising a soluble copper salt and a polyamino disuccinic acid and plating baths appropriate for such use. Another aspect of the invention includes a method for removing iron oxide deposits from a surface including a step of contacting the deposits with a solution comprising an ammoniated polyamino disuccinic acid. Yet another aspect of the invention involves gas conditioning including a process of removing H.sub.2 S from a fluid comprising contacting said fluid with an aqueous solution at a pH suitable for removing H.sub.2 S wherein said solution contains at least one higher valence polyvalent metal chelate of a polyamino disuccinic acid and a process of removing NO.sub.x from a fluid comprising contacting the fluid with an aqueous solution of at least one lower valence state polyvalent metal chelate of a polyamino disuccinic acid.

REFERENCES:
patent: 3119709 (1964-01-01), Atkinson
patent: 3158635 (1964-11-01), Kezerian et al.
patent: 3257215 (1966-06-01), Schneble, Jr. et al.
patent: 3264107 (1966-08-01), von Wartburg
patent: 3658535 (1972-04-01), Willems
patent: 3893858 (1975-07-01), Wabnitz, Jr.
patent: 3933993 (1976-01-01), Salemme
patent: 3937795 (1976-02-01), Hasebe
patent: 4011304 (1977-03-01), Mancini et al.
patent: 4047956 (1977-09-01), Blake
patent: 4076621 (1978-02-01), Hardison
patent: 4091073 (1978-05-01), Winkler
patent: 4113489 (1978-09-01), Sugiyama et al.
patent: 4294914 (1981-10-01), Fyson
patent: 4304846 (1981-12-01), Marthaler et al.
patent: 4414817 (1983-11-01), Jernigan
patent: 4532118 (1985-07-01), Tajiri et al.
patent: 4563405 (1986-01-01), Ishikawa et al.
patent: 4702998 (1987-10-01), Tanaka et al.
patent: 4704233 (1987-11-01), Hartman et al.
patent: 4707434 (1987-11-01), Koboshi et al.
patent: 4737450 (1988-04-01), Hall et al.
patent: 4769312 (1988-09-01), Kishimoto et al.
patent: 4780398 (1988-10-01), Kim
patent: 4861502 (1989-08-01), Caswell
patent: 4897339 (1990-01-01), Andoh et al.
patent: 4933266 (1990-06-01), Stephen et al.
patent: 4983315 (1991-01-01), Glogowski et al.
patent: 4985347 (1991-01-01), Fujimoto et al.
patent: 5110716 (1992-05-01), Kuse et al.
patent: 5238791 (1993-08-01), Tappe et al.
patent: 5316898 (1994-05-01), Ueda et al.
Derwent Abstract 91-172208/24 (DE 3,939,756).
Derwent Abstract 84-145630/23 (SU 1,043,137).
Derwent Abstract 89-288901 (JP 01-211,748).
Derwent Abstract 89-288902 (JP 01-211,750).
Derwent Abstract 89-290505 (JP 01-214,846).
Chemical Abstract 65:11738f.
Chemical Abstract 102:138591z.
Chemical Abstract 113:47510h.
Chemical Abstract 98:117068t.
J. Mejer et al., Chem. Zvesti 20(6), 414-22 (1996) (English translation).
"Oxidative Absorption of H.sub.2 S and O.sub.2 by Iron Chelate Solutions" by Neumann et al. A. I. Ch. E. Journal vol. 30, No. 1 Jan. 1984 pp. 62-69.

Affiliated with

Also associated with

Rating

Succinic acid derivative degradable chelants, uses and compositi does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Succinic acid derivative degradable chelants, uses and compositi, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Succinic acid derivative degradable chelants, uses and compositi will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-2055706