Corrosion-inhibiting salt deicers

Details Corrosion-inhibiting salt deicers Corrosion-inhibiting salt deicers

1994-12-30

1996-07-02

Geist, Gary

Compositions

Preservative agents

Anti-corrosion

252 70, 25238961, 25238952, 25238962, C09K 318, C23F 1112, C23F 1118

Patent

active

055319319

ABSTRACT:
Salt-based deicing compositions which are highly effective as deicers and which have significantly reduced corrosive effects are provided. One deicing composition comprises a deicing salt as the major component and an inhibitor system comprising either a water-soluble rare earth salt or a water-soluble organic acid salt selected from the group consisting of gluconate salts, ascorbate salts, tartrate salts, and saccharate salts. A more preferred deicing composition comprises a deicing salt as the major component and an inhibitor system comprising a mixture of a water-soluble rare earth salt and a water-soluble organic acid salt selected from the group consisting of gluconate salts, ascorbate salts, tartrate salts, and saccharate salts. The deicing salts include sodium chloride and mixtures of sodium chloride and up to 25 weight percent magnesium chloride or calcium chloride. The preferred deicing salt is sodium chloride. Generally, the preferred water soluble rare earth salt is a lanthanum salt or mixture of rare earth salts containing lanthanum salts. The preferred water-soluble organic acid salt is a gluconate salt.

REFERENCES:
patent: 3227654 (1966-01-01), Standish et al.
patent: 3779927 (1973-12-01), Howel et al.
patent: 4094686 (1978-06-01), Dubois
patent: 4495225 (1985-01-01), Ciuba et al.
patent: 4668416 (1987-05-01), Neal
patent: 4692259 (1987-09-01), Roman
patent: 4749550 (1988-06-01), Goldie et al.
patent: 4803007 (1989-02-01), Garber
patent: 4824588 (1989-04-01), Lin
patent: 4986925 (1991-01-01), Fiske
patent: 4990278 (1991-02-01), Wyeth
patent: 4992115 (1991-02-01), Ikeda
patent: 5130052 (1992-07-01), Kreh et al.
patent: 5194138 (1993-03-01), Manfeld et al.
patent: 5211868 (1993-05-01), Ireland et al.
patent: 5238592 (1993-08-01), Stankowiak et al.
patent: 5296167 (1994-03-01), Murray
patent: 5302307 (1994-04-01), Ireland
patent: 5356492 (1994-10-01), Miller
patent: 5362335 (1994-11-01), Rungta
patent: 5372638 (1994-12-01), DePue et al.
patent: 5399210 (1995-03-01), Miller
DE 4034217A (29 May 1991) abstract only.
Hinton et al., "The Inhibition of Aluminum Alloy Corrosion by Cerous Cations," Metals Forum, vol. 7, No. 4, p. 212 (l984).
Arnott et al., "Cationic Film-Forming Inhibitors for the Corrosion Protection of AA 7075.sup.(1) aluminum alloy in chloride solutions", Materials Performance, vol. 26, No. 8, p. 42 (l987).
Hinton et al., "The Inhibition of Aluminum Alloy Corrosion by Rare Earth Metal Cations", Corrosion Australiasia, p. 12 (1984).
Mor et al., "Zin Gluconate as an Inhibitor of the Corrosion of Mild Steel in Sea Water", Br. Corros. J., 1976, vol. 11, No. 4.
Pandya R. P. et al. "Inhibition of Corrosion of Mild Steel in Sea Water Using Gluconates", Central Salt & Marine Chemicals Research Institute, Bhavnagar, 10th International Congress on Metallic Corrosion, V. 3., Madras, India, 7-11, Nov. 1987, p. 2849.
Hinton et al., "The Characteristics of Corrosion Inhibiting Films Formed in the Presence of Rare Earth Cations", Microstructural Science, Vol. 17, p. 311.

Affiliated with

Also associated with

Rating

Corrosion-inhibiting salt deicers does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Corrosion-inhibiting salt deicers, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Corrosion-inhibiting salt deicers will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1503926