Inhibition of scale and corrosion in aqueous systems

Details Inhibition of scale and corrosion in aqueous systems Inhibition of scale and corrosion in aqueous systems

1996-04-19

1997-04-01

McAvoy, Ellen M.

Compositions

Water-softening or purifying or scale-inhibiting agents

Plant or organic material containing

252181, 210697, 210698, 210699, 210701, C02F 514

Patent

active

056162782

ABSTRACT:
A method and compounds for inhibiting the formation of scale, e.g., barium scale, and controlling corrosion is disclosed. The method is particularly effective at inhibiting or preventing corrosion of ferrous-based metals in contact with the aqueous systems such as cooling water systems. The method comprises introducing into the aqueous system a compound of the general formula: ##STR1## wherein R is hydrogen, alkyl, aryl, substituted alkyl or substituted aryl; R' and R" are each independently hydrogen, C.sub.1-4 alkyl or C.sub.1-4 substituted alkyl; Z is O, S, NH or NR, where R is as described above; n is a positive integer greater than 1; f is a positive integer; and M is hydrogen, a water soluble cation (e.g., NH.sub.4.sup.+, alkali metal), or a C.sub.1-3 alkyl group.

REFERENCES:
patent: 3776850 (1973-12-01), Pearson et al.
patent: 4654159 (1987-03-01), Bush et al.
patent: 4659481 (1987-04-01), Chen
patent: 5062962 (1991-11-01), Brown et al.
patent: 5116513 (1992-05-01), Koskan et al.
patent: 5152902 (1992-10-01), Koskan et al.
patent: 5183590 (1993-02-01), Carter et al.
patent: 5248438 (1993-09-01), Perez
patent: 5256332 (1993-10-01), Kessler
patent: 5378372 (1995-01-01), Carey et al.
patent: 5378390 (1995-01-01), Perez et al.
patent: 5437712 (1995-08-01), Klatskih et al.
patent: 5468393 (1995-11-01), Zidovec et al.
patent: 5489666 (1996-02-01), Carey et al.
patent: 5518629 (1996-05-01), Perez et al.
patent: 5525257 (1996-06-01), Kleinstuck et al.

Affiliated with

Also associated with

Rating

Inhibition of scale and corrosion in aqueous systems does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Inhibition of scale and corrosion in aqueous systems, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Inhibition of scale and corrosion in aqueous systems will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-536671