Chemical apparatus and process disinfecting – deodorizing – preser – Process disinfecting – preserving – deodorizing – or sterilizing – Maintaining environment nondestructive to metal
Reexamination Certificate
2011-06-07
2011-06-07
Hruskoci, Peter A (Department: 1776)
Chemical apparatus and process disinfecting, deodorizing, preser
Process disinfecting, preserving, deodorizing, or sterilizing
Maintaining environment nondestructive to metal
C210S698000, C252S390000, C422S016000, C422S018000
Reexamination Certificate
active
07955553
ABSTRACT:
A method of providing corrosion inhibition to copper, nickel, aluminum, zinc, tin, lead, beryllium, carbon steel, various alloys of such metals, and galvanized coatings in evaporative cooling water applications approaching zero liquid discharge that are specifically attacked by cooling water with residuals of corrosive chemistry or ions such as ammonia/ammonium ion, chloride, high TDS, OH−, or high pH. The method includes applying azoles inhibitors (such as TTA, BTA, etc.) at residuals of 0.25 mg/L to 200 mg/L or greater (as azoles) to the cooling water application and operating with a combination of high TDS (greater than 2500 mg/L) and high pH (greater than 9.0), while maintaining low total hardness (less than 200 mg/L as CaCO3).
REFERENCES:
patent: 4098720 (1978-07-01), Hwa
patent: 4149969 (1979-04-01), Robitaille et al.
patent: 4678638 (1987-07-01), Outlaw et al.
patent: 5194223 (1993-03-01), Moulton et al.
patent: 5277823 (1994-01-01), Hann et al.
patent: 5403521 (1995-04-01), Takahashi
patent: 5746947 (1998-05-01), Vanderpool et al.
patent: 5885362 (1999-03-01), Morinaga et al.
patent: 5985152 (1999-11-01), Otaka et al.
patent: 6103144 (2000-08-01), Cheng
patent: 6315909 (2001-11-01), Hoots et al.
patent: 6334955 (2002-01-01), Kawashima et al.
patent: 6402957 (2002-06-01), Boyce
patent: 6468470 (2002-10-01), Oldsberg et al.
patent: 6537456 (2003-03-01), Mukhopadhyay
patent: 6733636 (2004-05-01), Heins
patent: 6929749 (2005-08-01), Duke et al.
patent: 6949193 (2005-09-01), Duke et al.
patent: 6998092 (2006-02-01), Duke et al.
patent: 7122148 (2006-10-01), Duke et al.
patent: 7517493 (2009-04-01), Duke et al.
patent: 7662304 (2010-02-01), Woyciesjes et al.
patent: 7708939 (2010-05-01), Duke et al.
Iler, R.K., The Chemistry of Silica, 1979 Wiley, pp. 4-6; 10-15; 22-23; 30-31; 40-43; 46-51; 54-55; 74-75; 82-89; 92-93; 116-117; 124-145; 160-163; 174-177; 188-189; 194-197; 204-205; 212-215; 218-219; 312-317; 324-325; 354-361; 366-369; 374-377; 554-559.
Icopini, G.A., Kinetics of Silica Oligomerization and Nanocolloid Formation as a Function of pH and Ionic Strength at 25 degrees C, Penn State U., Dept. of Geosciences, pub. Geochimica Et Cosmochimica ACTA, vol. 69, No. 2, pp. 293-303 (2005).
Icenhower, J.P., The Dissolution Kinetics of Amorphous Silica in Sodium Chloride Solution: Effects of Temperature & Ionic Strength, Geochimica Et Cosmochimica ACTA vol. 64 (24), pp. 4193-4203 (2000).
Klein, R.; Charge Stabilized Colloidal Suspensions, Pure Applied Chemistry, vol. 73, No. 11, pp. 1705-1719 (2001).
Crocker and Grier , Interactions and Dynamics in Charge-Stabilized Colloid, MRS Bulletin 23, pp. 24-31 (1998).
Kallay, N., Introduction of the Surface Complexation Model into the Theory of Colloid Stability, Croatia Chemica ACTA, CCACAA 74 (3), pp. 479-497 (2001).
Kirby, B.J., Zeta Potential of Microfluidic Substrates, Electrophoresis 2004, 25, pp. 187-202.
Barr, T.L., U. Wisconsin-Milwaukee, Modification and Characterization of Mineralization Surface for Corrosion Protection, (www.elisha.com/docs/CorrosionProtection.pdf, Jan. 2006 dl).
Mauritz, K, Sol Gel Chemistry, U. Southern Mississippi, School of Polymers, (www.psrc.usm.edu/mauritz/solgel.html, Jan. 2006 dl).
Gillet, S.L., Toward a Silicate-Based Molecular Nanotechnology I, Mackay School of Mines, U. Nevada Reno (1998) (www.foresight.org/conference/MNT05;Papers:Gillet1/Index.html, Jan. 2006 dl).
Gillet, S.L., Toward a Silicate-Based Molecular Nanotechnology II, Mackay School of Mines, U. Nevada Reno (1998), (www.foresight.org/conference/MNT05/PapersGillet2/Index.html, Jan. 2006 dl).
U. of Aberdeen, UK Silicification in Hot Spring Environments, Learning Resource Site, (www.abdn.uc.uk/rhyne/sinter.htm#silici, Jan. 2006 dl).
Strumm, et al.; “Formation of Polysilicates as Determined by Coagulation Effect”; Environmental Science and Technology; 1967; vol. 1; 221-227.
Small, R.J.., et al., “Using a buffered rinse solution to minimize metal contamination after wafer cleaning”; Ultrapure Materials—Chimicals, Micro Magazine.com.
Rozenfeld, I.L.; “Corrosion Inhibitors”; 1981; McGraw Hill; 171-174.
The NALCO Water Handbook; 1979; Chapter 3, pp. 14 and 16.
Drew; Principles of Industrial Water Treatment; Sixth Edition; 1983; Chapter 3, pp. 43 and 64.
Boffardi, Bennett P., PhD; Calgon Internal Publication; 1988; Chapter 4; pp. 30-31.
Atkinson, J.M., et al.; “Cathodic delamination of methyl methacrylate-based dry film polymers on copper”; IBM Jour. Res. Develop.; vol. 29, No. 1, Jan. 1985, p. 29.
Tuthill, A.H., “Experience with copper alloy tubing, waterboxes and piping in MSF desalination plants”; Oct. 6, 1997; vol. 1, Sessions 1-3, p. 1-22.
Metikos-Hukovic, et al., “Copper corrosion at various pH values with and without the inhibitor”, May 7, 1999, Journal of Applied Electrochemistry 30; pp. 617-624; 2000.
White Rust; an industry update and guide paper, 2002, Association of Water Technologies; pp. 1-14.
Duke Dan A.
Kubis John L.
Hruskoci Peter A
Stetina Brinda Garred & Brucker
Water Conservation Technology International, Inc.
LandOfFree
Cooling water corrosion inhibition method does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Cooling water corrosion inhibition method, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Cooling water corrosion inhibition method will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-2667476