WO2005072378A3 - Method of inhibiting corrosion using high grade phosphoric acid compositions - Google Patents

Method of inhibiting corrosion using high grade phosphoric acid compositions Download PDF

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Publication number
WO2005072378A3
WO2005072378A3 PCT/US2005/002584 US2005002584W WO2005072378A3 WO 2005072378 A3 WO2005072378 A3 WO 2005072378A3 US 2005002584 W US2005002584 W US 2005002584W WO 2005072378 A3 WO2005072378 A3 WO 2005072378A3
Authority
WO
WIPO (PCT)
Prior art keywords
phosphoric acid
corrosion
high grade
grade phosphoric
acid compositions
Prior art date
Application number
PCT/US2005/002584
Other languages
French (fr)
Other versions
WO2005072378A2 (en
Inventor
Kim Demarsh
Arvind Phadnis
Original Assignee
Terra Ind Inc
Kim Demarsh
Arvind Phadnis
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Terra Ind Inc, Kim Demarsh, Arvind Phadnis filed Critical Terra Ind Inc
Publication of WO2005072378A2 publication Critical patent/WO2005072378A2/en
Publication of WO2005072378A3 publication Critical patent/WO2005072378A3/en

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Classifications

    • C—CHEMISTRY; METALLURGY
    • C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
    • C23F—NON-MECHANICAL REMOVAL OF METALLIC MATERIAL FROM SURFACE; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL; MULTI-STEP PROCESSES FOR SURFACE TREATMENT OF METALLIC MATERIAL INVOLVING AT LEAST ONE PROCESS PROVIDED FOR IN CLASS C23 AND AT LEAST ONE PROCESS COVERED BY SUBCLASS C21D OR C22F OR CLASS C25
    • C23F11/00—Inhibiting corrosion of metallic material by applying inhibitors to the surface in danger of corrosion or adding them to the corrosive agent
    • C23F11/08—Inhibiting corrosion of metallic material by applying inhibitors to the surface in danger of corrosion or adding them to the corrosive agent in other liquids
    • C23F11/18—Inhibiting corrosion of metallic material by applying inhibitors to the surface in danger of corrosion or adding them to the corrosive agent in other liquids using inorganic inhibitors
    • C23F11/184—Phosphorous, arsenic, antimony or bismuth containing compounds
    • C—CHEMISTRY; METALLURGY
    • C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
    • C23F—NON-MECHANICAL REMOVAL OF METALLIC MATERIAL FROM SURFACE; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL; MULTI-STEP PROCESSES FOR SURFACE TREATMENT OF METALLIC MATERIAL INVOLVING AT LEAST ONE PROCESS PROVIDED FOR IN CLASS C23 AND AT LEAST ONE PROCESS COVERED BY SUBCLASS C21D OR C22F OR CLASS C25
    • C23F11/00—Inhibiting corrosion of metallic material by applying inhibitors to the surface in danger of corrosion or adding them to the corrosive agent
    • C23F11/08—Inhibiting corrosion of metallic material by applying inhibitors to the surface in danger of corrosion or adding them to the corrosive agent in other liquids
    • C23F11/18—Inhibiting corrosion of metallic material by applying inhibitors to the surface in danger of corrosion or adding them to the corrosive agent in other liquids using inorganic inhibitors
    • C23F11/185—Refractory metal-containing compounds

Abstract

High grade phosphoric acid is an effective inhibitor of corrosion of metal systems storing or transporting urea ammonium nitrate solutions. High grade phosphoric acid may be used alone or in combination with other additives, such as a biocide. Corrosion of metal systems may be monitored by bringing at least one surface of a test coupon made of the same material as that of the metal system into contact with the urea ammonium nitrate solution, detecting a status of corrosion of the test coupon, and monitoring the corrosion of the tank based on results of the detecting.
PCT/US2005/002584 2004-01-29 2005-01-28 Method of inhibiting corrosion using high grade phosphoric acid compositions WO2005072378A2 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US54019904P 2004-01-29 2004-01-29
US60/540,199 2004-01-29

Publications (2)

Publication Number Publication Date
WO2005072378A2 WO2005072378A2 (en) 2005-08-11
WO2005072378A3 true WO2005072378A3 (en) 2005-09-09

Family

ID=34826201

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US2005/002584 WO2005072378A2 (en) 2004-01-29 2005-01-28 Method of inhibiting corrosion using high grade phosphoric acid compositions

Country Status (1)

Country Link
WO (1) WO2005072378A2 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20080083435A1 (en) * 2006-10-06 2008-04-10 Myers Craig W Method of inhibiting corrosion in storage and transport vessels

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3185648A (en) * 1962-09-19 1965-05-25 Standard Oil Co Deicer composition
US3624243A (en) * 1970-02-27 1971-11-30 Allied Chem Inhibition of corrosive action of fluid deicer composition
US3935125A (en) * 1974-06-25 1976-01-27 Chemed Corporation Method and composition for inhibiting corrosion in aqueous systems
US4531962A (en) * 1984-03-12 1985-07-30 Tennessee Valley Authority Production of acid-type fertilizer solutions
US4964468A (en) * 1989-08-08 1990-10-23 Nalco Chemical Company Method of inhibiting corrosion
US5376159A (en) * 1993-09-10 1994-12-27 Nalco Chemical Company Corrosion inhibitor for nitrogen fertilizer solutions
US5704961A (en) * 1996-10-17 1998-01-06 Hudson; Alice P. Corrosion inhibitors for liquid fertilizers
US20030230742A1 (en) * 2002-05-24 2003-12-18 Trahan Scott David Corrosion inhibitor

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3185648A (en) * 1962-09-19 1965-05-25 Standard Oil Co Deicer composition
US3624243A (en) * 1970-02-27 1971-11-30 Allied Chem Inhibition of corrosive action of fluid deicer composition
US3935125A (en) * 1974-06-25 1976-01-27 Chemed Corporation Method and composition for inhibiting corrosion in aqueous systems
US4531962A (en) * 1984-03-12 1985-07-30 Tennessee Valley Authority Production of acid-type fertilizer solutions
US4964468A (en) * 1989-08-08 1990-10-23 Nalco Chemical Company Method of inhibiting corrosion
US5376159A (en) * 1993-09-10 1994-12-27 Nalco Chemical Company Corrosion inhibitor for nitrogen fertilizer solutions
US5704961A (en) * 1996-10-17 1998-01-06 Hudson; Alice P. Corrosion inhibitors for liquid fertilizers
US20030230742A1 (en) * 2002-05-24 2003-12-18 Trahan Scott David Corrosion inhibitor

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
FLITTON ET AL: "Long Term Corrosion/Degradation Test Third-Year Results", September 2001, IDAHO NATIONAL ENGINEERING AND EVERONMENTAL LABORATORY, article "Description of direct testing", pages: 11, 14, XP002987144 *
WIESMA ET AL: "Corrosion Testing of Carbon Stell in Acid Cleaning Solutions (U)", WESTINGHOUSE SAVANNAH RIVER COMPANY, September 2002 (2002-09-01), XP002987563 *

Also Published As

Publication number Publication date
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