Corrosion inhibiting solutions for absorption systems

Compositions – Vaporization – or expansion – refrigeration or heat or energy... – With low-volatile solvent or absorbent

Reexamination Certificate

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

C062S112000, C062S476000

Reexamination Certificate

active

07410596

ABSTRACT:
Anti-corrosion solutions and processes useful for refrigeration processes are proposed. Heteropoly complex anions of transitional metal elements can be added to an absorption solution which includes aqueous ammonia, alkali metal hydroxide and/or alkaline earth metal hydroxide, optionally in combination with transition metal compounds or compounds of the metallic elements of Groups IIIa to VIa of the Periodic Table of Elements to minimize corrosion of systems within which the solution is used.

REFERENCES:
patent: 2725364 (1955-11-01), Dazzi
patent: 3200604 (1965-08-01), Greeley et al.
patent: 3227518 (1966-01-01), Kennedy
patent: 3424601 (1969-01-01), Hamilton
patent: 3478530 (1969-11-01), Aronson
patent: 4019992 (1977-04-01), Krueger
patent: 4077929 (1978-03-01), Robinson
patent: 4237312 (1980-12-01), Stapp
patent: 4311024 (1982-01-01), Itoh et al.
patent: 4563253 (1986-01-01), Leidheiser, Jr. et al.
patent: 4612378 (1986-09-01), Bosshard et al.
patent: 4743393 (1988-05-01), Hirozawa
patent: 4963290 (1990-10-01), Bressan et al.
patent: 5101888 (1992-04-01), Sprouse et al.
patent: 5152929 (1992-10-01), Bentley et al.
patent: 5186009 (1993-02-01), Rockenfeller
patent: 5206404 (1993-04-01), Gunkel et al.
patent: 5547600 (1996-08-01), Downey
patent: 5577388 (1996-11-01), Chandler et al.
patent: 5783104 (1998-07-01), Kujak
patent: 5871667 (1999-02-01), Cheng et al.
patent: 6004475 (1999-12-01), Verma et al.
patent: 6004476 (1999-12-01), Verma et al.
patent: 6024892 (2000-02-01), Verma et al.
patent: 6033595 (2000-03-01), Verma et al.
patent: 19623268 (1996-12-01), None
patent: 0248346 (1987-12-01), None
patent: 0329560 (1989-08-01), None
patent: 0573082 (1993-12-01), None
patent: 0611388 (1994-08-01), None
patent: 0741179 (1996-11-01), None
patent: 2505861 (1982-11-01), None
patent: 58224185 (1983-12-01), None
patent: 58224187 (1983-12-01), None
patent: 5993778 (1984-05-01), None
patent: 60118785 (1985-06-01), None
patent: 01174588 (1989-07-01), None
patent: 1174588 (1989-07-01), None
patent: 1184287 (1989-07-01), None
patent: 285655 (1990-03-01), None
patent: 2147689 (1990-06-01), None
patent: 402296888 (1990-12-01), None
patent: 7138559 (1995-05-01), None
patent: 875292 (1996-03-01), None
patent: 97/49842 (1997-12-01), None
patent: WO 9749842 (1997-12-01), None
patent: WO 9803608 (1998-01-01), None
Aramaki, K., et al.Eac Sci Technol10(7):207-211 (1992).
Bartroff et al. “Inhibition of pitting corrosion by heteropoly acids”Chemical AbstractsAbstract No. 69499c 94(10):245 (Mar. 1981).
Basov et al. “Protection of metals from corrosion in acid organic media”Chemical Abstracts90:172469 (1979).
Brahser, D., et al. “Sodium dodeca-molybdophosphate as a Corrosion Inhibitor in Aqueous Solution”Br. Corros. J.4:74-79 (Mar. 1969).
Database WPI Section Ch, Week 199926. Derwent Publications Ltd., London, GB. JP 11106750 (Apr. 1999).
European Search Report corresponding to EP 03010754. Mailed Jul. 9, 2003.
European Search Report corresponding to EP 03010760. Mailed Jul. 9, 2003.
Gorski et al., “Brake Fluid”Chemical Abstracts126(3) Abstract No. 34170 (Jan. 20, 1997).
Granese et al. “The inhibition action of heterocyclic nitrogen organic compounds on Fe and Steel in HCI media”Corrosion Science33(9):1439-1453 (Sep. 1992).
Grnat & Hackh's Chemical Dictionary. Definition of “heteropoly acids” p. 282 (1987).
Japanese Patent Abstract 59117577 (1984).
Japanese Patent Abstract 59200769 (1984).
Japanese Patent Abstract 01155157 (1989).
Japanese Patent Abstract 2296888 (1990).
Japanese Patent Abstract 5228327 (1993).
Japanese Patent Abstract 5214326 (1993).
Japanese Patent Abstract 6221728 (1994).
Lomakina et al. “Heterpoloy Anions as Corrosion Inhibitors for Aluminum in High Temperature Water”Werkstoffe Und Korrosion,De, Verlag Chemi GMBM Weinheim46(7):R111 (Jul. 1995).
Pak et al. “Solid-phase redox reaction of 12thSeries Heteropoly Acids”Chemical AbstractsAN 121:25617 69(4):617-619 (1994).
Patent Abstracts of Japan 007(285):C-201 (Dec. 1983 and JP 58 164792 A (Sep. 1983).
Pikel'nyi et al. “The Kinetics and Mechanism of Corrosion in the Presence of Heterpoly Compounds”Protection of MetalsPlenum Publishing Co. New York. 30(4):385-386 (Jul. 1994).
Russian Patent Abstract 1685970 (1991).
Sastri et al. “Surface Analysis in Corrosion Inhibition Mechanisms”Werkstoffe Und Korrosion39(2):7782 (Feb. 1987).
Simpson, C., “Second Generation Corrosion Inhibitors”Polymer Paint Colour J185(4371):23-24 (1995).
Tanno et al. “The Corrosion of Carbon Steel in Lithium Bromide Solution at Moderate Temperatures”Corrosion Science34(9):1441-14451 (Sep. 1993).
Tsygankova et al.Zaschita Met alloy2777:344-347 (1991).
Tsygankova et al. “Protection of Steel by Hydroxyquinoline Films from Corrosion in Lithium Bromide Solutions”Protection of Metals27(2):288-291 (Mar. 1991).
Tumurova, LV.,Zashch. Met26(3):437-439 (1990).
Weisstuch A., et al. “An Electrochemical Study of Heteropoly Molybdates as Cooling Water Corrosion Inhibitores”Corrosion-Nace28(8):299-306 (Aug. 1972).
Zimina et al. “Synthesis and some physiochemical properties of complex halides of lithium and antimony” Chemical Abstracts, 74:106645 (1969).

LandOfFree

Say what you really think

Search LandOfFree.com for the USA inventors and patents. Rate them and share your experience with other people.

Rating

Corrosion inhibiting solutions for absorption 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 Corrosion inhibiting solutions for absorption systems, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Corrosion inhibiting solutions for absorption systems will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFUS-PAI-O-4011108

  Search
All data on this website is collected from public sources. Our data reflects the most accurate information available at the time of publication.