WO2002079105A1 - Corrosion inhibitors for aqueous systems - Google Patents

Corrosion inhibitors for aqueous systems Download PDF

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Publication number
WO2002079105A1
WO2002079105A1 PCT/US2002/005598 US0205598W WO02079105A1 WO 2002079105 A1 WO2002079105 A1 WO 2002079105A1 US 0205598 W US0205598 W US 0205598W WO 02079105 A1 WO02079105 A1 WO 02079105A1
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WIPO (PCT)
Prior art keywords
acid
reaction mixture
aqueous
hypophosphite
corrosion
Prior art date
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Ceased
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PCT/US2002/005598
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English (en)
French (fr)
Inventor
Bo Yang
Peter E. Reed
John D. Morris
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ChampionX LLC
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Ondeo Nalco Co
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Filing date
Publication date
Application filed by Ondeo Nalco Co filed Critical Ondeo Nalco Co
Priority to KR1020037013011A priority Critical patent/KR100983521B1/ko
Priority to PL364137A priority patent/PL206324B1/pl
Priority to AU2002252089A priority patent/AU2002252089B2/en
Priority to BRPI0208594-1A priority patent/BR0208594B1/pt
Priority to JP2002577739A priority patent/JP4180383B2/ja
Priority to EP02721144A priority patent/EP1379473B1/en
Priority to AT02721144T priority patent/ATE527218T1/de
Priority to CA002442474A priority patent/CA2442474C/en
Priority to HU0303762A priority patent/HU228325B1/hu
Priority to ES02721144T priority patent/ES2374284T3/es
Publication of WO2002079105A1 publication Critical patent/WO2002079105A1/en
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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Classifications

    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F5/00—Softening water; Preventing scale; Adding scale preventatives or scale removers to water, e.g. adding sequestering agents
    • C02F5/08—Treatment of water with complexing chemicals or other solubilising agents for softening, scale prevention or scale removal, e.g. adding sequestering agents
    • C02F5/10—Treatment of water with complexing chemicals or other solubilising agents for softening, scale prevention or scale removal, e.g. adding sequestering agents using organic substances
    • C02F5/14—Treatment of water with complexing chemicals or other solubilising agents for softening, scale prevention or scale removal, e.g. adding sequestering agents using organic substances containing phosphorus
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F5/00—Softening water; Preventing scale; Adding scale preventatives or scale removers to water, e.g. adding sequestering agents
    • C02F5/08—Treatment of water with complexing chemicals or other solubilising agents for softening, scale prevention or scale removal, e.g. adding sequestering agents
    • C02F5/10—Treatment of water with complexing chemicals or other solubilising agents for softening, scale prevention or scale removal, e.g. adding sequestering agents using organic substances
    • C02F5/14—Treatment of water with complexing chemicals or other solubilising agents for softening, scale prevention or scale removal, e.g. adding sequestering agents using organic substances containing phosphorus
    • C02F5/145—Treatment of water with complexing chemicals or other solubilising agents for softening, scale prevention or scale removal, e.g. adding sequestering agents using organic substances containing phosphorus combined with inorganic substances
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
    • C09K5/00—Heat-transfer, heat-exchange or heat-storage materials, e.g. refrigerants; Materials for the production of heat or cold by chemical reactions other than by combustion
    • C09K5/08—Materials not undergoing a change of physical state when used
    • C09K5/10—Liquid materials
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
    • C09K8/00—Compositions for drilling of boreholes or wells; Compositions for treating boreholes or wells, e.g. for completion or for remedial operations
    • C09K8/54—Compositions for in situ inhibition of corrosion in boreholes or wells
    • 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
    • C23F11/10—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 organic inhibitors
    • 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
    • C23F11/10—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 organic inhibitors
    • C23F11/12—Oxygen-containing compounds
    • C23F11/128—Esters of carboxylic acids
    • 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
    • C23F11/10—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 organic inhibitors
    • C23F11/167—Phosphorus-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
    • C23F11/10—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 organic inhibitors
    • C23F11/173—Macromolecular 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
    • C23F14/00—Inhibiting incrustation in apparatus for heating liquids for physical or chemical purposes
    • C23F14/02—Inhibiting incrustation in apparatus for heating liquids for physical or chemical purposes by chemical means
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2103/00—Nature of the water, waste water, sewage or sludge to be treated
    • C02F2103/02—Non-contaminated water, e.g. for industrial water supply
    • C02F2103/023—Water in cooling circuits

Definitions

  • This invention relates to a new class of phosphinic acid-based corrosion inhibitors, to methods of preparing the inhibitors and to use of the inhibitors to inhibit corrosion in ferrous metal aqueous systems .
  • Ferrous metals such as carbon steel, are one of the most commonly used structural materials used in industrial aqueous systems. It is well known that corrosion of the metal is one of the major problems in industrial aqueous systems having ferrous metal in contact with an aqueous solution. Loss of metals due to general corrosion leads to deterioration of the structural integrity of the system because of material strength reduction. It can also cause other problems elsewhere in the system, such as under- deposit corrosion, reduction of heat transfer efficiency or even blockage of the flow lines due to the transport and accumulation of corrosion products in places with low flow rates or geometric limitations.
  • Corrosion inhibitors can be used to inhibit the corrosion of ferrous metals in aqueous or water containing systems.
  • aqueous systems include, but are not limited to, cooling water systems including open recirculating, closed, and once-through systems; systems used in petroleum production (e.g., well casing, transport pipelines, etc.) and refining, geothermal wells, and other oil field applications; boilers and boiler water systems or systems used in power generation, mineral process waters including mineral washing, flotation and benefaction; paper mill digesters, washers, bleach plants, white water systems and mill water systems; black liquor evaporators in the pulp industry; gas scrubbers and air washers; continuous casting processes in the metallurgical industry; air conditioning and refrigeration systems; building fire protection systems and water heaters; industrial and petroleum process water; indirect contact cooling and heating water, such as pasteurization water; water reclamation and purification systems; membrane filtration water systems; food processing streams and waste treatment systems as well as in clarifiers, liquid-solid applications, municipal sewage treatment systems; and
  • Localized corrosion such as pitting may pose even a greater threat to the normal operation of the system than general corrosion because such corrosion will occur intensely in isolated small areas and is much more difficult to detect and monitor than general corrosion. Localized corrosion may cause perforation quickly and suddenly without giving any easily detectable early warning. Obviously, these perforations may cause leaks that may require unscheduled shutdown of the industrial aqueous system. Sudden failure of equipment due to corrosion could also result in environmental damage and/or present a serious threat to the safety of plant operations.
  • Corrosion protection of ferrous metal in industrial aqueous systems is often achieved by adding a corrosion inhibitor.
  • a corrosion inhibitor for example, many metallic ion corrosion inhibitors such as
  • Cr0 2 ⁇ , Mo0 4 2" , and Zn 2+ have been used alone or in combination in various chemical treatment formulations. These inhibitors, however, have been found to be toxic and detrimental to the environment and their use in open- recirculation cooling water systems is generally restricted. Inorganic phosphates such as orthophosphate and pyrophosphate are also widely used. The inorganic phosphates have been found to contribute to scale formation (e.g., calcium phosphate, iron phosphate and zinc phosphate salts) if used improperly.
  • scale formation e.g., calcium phosphate, iron phosphate and zinc phosphate salts
  • HPA 2-hydroxy- phosphonoacetic acid
  • HEDP HEDP
  • PBTC PBTC
  • bleach or NaOBr are the most widely used biocides in cooling water systems, the halogen instability of HPA limits its application potential and reduces its effectiveness.
  • HPA is found to be a relatively ineffective CaC0 3 scale inhibitor.
  • an organophosphonic acid mixture has been used by many as mild steel corrosion inhibitor in cooling Water applications (see, U.S. Patent No. 5,606,105).
  • PCAM organophosphonic acids
  • This mixture is halogen stable under cooling water application conditions.
  • these organophosphonic acids are said to be a better CaC0 3 scale inhibitor than HPA.
  • organophosphonic acids these mixtures are comprised predominantly of a chemically different type of organophosphorus compound, namely organophosphinic acids.
  • the salts of organophosphinic acids are referred to as phosphinates .
  • organophosphinic acids produced from the reaction of hypophosphite with maleic acid for control of scale formation it is the oligomer portion of the reaction product of the maleic acid, hypophosphite and initiator which is believed to be the key component for use as a scale inhibitor. None of these references teaches the use of the reaction product for a corrosion inhibitor in aqueous systems. Furthermore, none of these references teaches a means to produce the desired organophosphinic acids in a simple process that converts essentially all of the hypophosphite and monomer raw materials into the desirable organophosphinic acid products.
  • Representative corrosion inhibitors that can be used in combination with phosphinic acid-based corrosion inhibitors include, but are not limited to, phosphorus containing inorganic chemicls, such as orthophosphates, pyrophosphates, polyphosphates; hydroxycarboxylic acids and their salts, such as gluconic acids; glucaric acid; Zn 2+ , Ce 2+ ; molybdates, vanadates, and tungstates; nitrites; carboxylates; silicates; phosphonates, HEDP and PBTC.
  • phosphorus containing inorganic chemicls such as orthophosphates, pyrophosphates, polyphosphates
  • hydroxycarboxylic acids and their salts such as gluconic acids
  • glucaric acid Zn 2+ , Ce 2+ ; molybdates, vanadates, and tungstates
  • nitrites carboxylates
  • silicates phosphonates,
  • Representative scale inhibitors that can be used in combination with the phosphinic acid-based corrosion inhibitors include, but are not limited to polyacrylates, polymethylacrylates, copolymers of acrylic acid and methacrylate, copolymers of acrylic acid and acrylamide, polymaleic acid, copolymers of acrylic acid and sulfonic , acids, copolymers of acrylic acid and maleic acid, polyesters, polyaspartic acid, funtionalized polyaspartic acids, terpolymers of acrylic acid, and acrylamide/sulfomethylated acrylamide copolymers, HEDP (1- hydroxyethylidene-1, 1-diphosphonic acid), PBTC (2- phosphono-butane-1, 2, 4-tricarboxylic acid), AMP (amino tri (methylene phosphonic acid) and mixtures thereof .
  • the reaction mixture is optionally heated, preferably at from about 40 °C to about
  • hypophosphite is important because it maximizes the yield of the desired products and minimizes the amount byproducts comprised of the relatively expensive hypophosphite and its oxidation products (inorganic phosphite and phosphate) that can otherwise contribute to scale formation when the desired products are used to inhibit corrosion in aqueous systems .
  • An advantage of this preferred process is that it is more economical because it allows the use of inexpensive maleic anhydride as a raw material instead of the more expensive fumaric acid.
  • Another advantage of the fumaric acid process is that the total amount of residual inorganic phosphorous in the product is typically less than three mole percent based on total phosphorous .
  • this invention is directed to a method of preparing a composition comprising mono, bis and oligomeric phosphinosuccinic acid adducts comprising: i) adding hypophosphite to fumaric acid acid slurry or solution in water to create a reaction mixture; and ii) -effecting a reaction by introducing a free radical initiator to the reaction mixture.
  • the reaction mixture is prepared by converting an aqueous maleic acid slurry to an aqueous fumaric acid slurry.
  • reaction mixture has a solids concentration of about 35-50% by weight. In another preferred aspect, the reaction mixture is neutralized with base.
  • the product comprised of salts hypophosphite/fumarate adducts described in the table below, displays the following molar distribution of components, determined by phosphorous NMR analysis.
  • the first set of data represents the average of four reactions run at 400-600 g scale according to the procedure described above.
  • the second set of data represents a reaction carried out as described above except that the fumaric acid slurry is prepared by mixing fumaric acid with water at a 126 g scale.
  • a 2.5/1 ratio of fumaric to hypophosphite is used in this Example.
  • the reaction conditions are as described in Example 1.
  • the product comprised of salts of hypophosphite/fumarate adducts described in the table below, displays the following molar distribution of components determined by phosphorous NMR analysis.
  • Example 2 This is a comparative example, using maleic acid instead of fumaric acid at the same 2.5/1 mole ratio as Example 2. It demonstrates that the results obtained with fumaric acid are unanticipated.
  • the first data set is the results obtained in the lab using the general procedure above, and the second data set is a plant run using the same mole ratio maleic to fumaric.
  • the general reaction conditions described in Example 1 are repeated except that maleic acid is substituted for fumaric acid at the same molar concentration.
  • the product comprised of salts of hypophosphite/maleate adducts described in the table below, displays the following molar distribution of components determined by phosphorous NMR analysis.
  • Example 4 This example uses a low 1.75/1 ratio of fumaric to hypophosphite. It does not yield >30% bis product and has a higher level of undesirable inorganic phosphorous.
  • the reaction conditions described in Example 1 are repeated except that a larger amount of hypophosphite is employed so that the molar ratio of fumaric acid to hypophosphite is 1.75/1.
  • the product comprised of salts of hypophosphite/fumarate adducts described in the table below, displays the following molar distribution of components determined by phosphorous NMR analysis.
  • Phosphonosuccinic acid salts 8 Phosphinicosuccinic acid oligomer salts (Structure III) 22 Hypophosphite, phosphite, and phosphate salts 6
  • Step 1 Monosodium Phosphinocobis (dimethyl succinate) A 2.1/1 molar ratio of dimethyl maleate to hypophosphite is used in this example. Sodium hypophosphite, 7.325 parts, are added to 6.25 parts water and 12.5 parts ethanol in a resin flask equipped with a magnetic stirrer, condenser, nitrogen inlet, heater and a dropping funnel. This solution is heated to 80°C. A solution consisting of 20.75 parts dimethyl maleate, 0.86 parts benzoyl peroxide (70% solution) and 25 parts ethanol is then added dropwise to the reaction flask over a period of 4.75 hours. The reaction mixture is heated for an additional 15 minutes then cooled. The solvent is removed by rotary evaporation under reduced pressure.
  • a saturated calomel electrode or a Ag/AgCl electrode is used as the reference electrode.
  • Solution Ohmic drop is minimized by placing the small Luggin capillary opening about 1-2 mm from the working electrode surface.
  • A.C. impedance experiments shows that the ohmic drop in the low corrosion rate conditions (e.g., R p > 3000 ohm cm 2 or ⁇ 7 ⁇ 9 mpy) usually contributed to not greater than 10% of the total measured polarization resistance (R p ) .
  • Test cells holding 700 ml ((for Table 3, 10.8 liters) solution are used in the tests.
  • the test solutions are prepared from deionized water, analytical grade chemicals and chemicals synthesized according to the method described in this invention.
  • a Gamry potentiostat and Gamry corrosion software are used to conduct the electrochemical measurements. After >16hours immersion, the polarization resistance of the electrode is determined by imposing a small overpotential (+15mV versus E corr ) on the working electrode and measuring the resulting current under steady state conditions. Quasi- steady-state potentiodynamic cathodic and anodic scans (e.g., 0.5mV/sec) are conducted immediately after the polarization resistance measurement. These measurements are commenced at the corrosion potential and polarized up to 200mV in either cathodic or anodic direction. The cathodic branch is recorded first. The anodic scan is conducted -0.5 hours after the completion of the cathodic scan.
  • Polymer 1 Acrylic acd (50 - 60 mole%) /acrylamide (20-36 mole%) amino methane sulfonate (14-20%) terpolymer
  • Example 1 The results in Table 1 show that the compounds of this invention (i.e., example 1) are much more effective mild steel corrosion inhibitors than PCAM.
  • the compound of Example 1 is also more effective than Mo0 4 2" , V0 3 3 ⁇ , nitrite, HEDP, PBTC, AMP, polyacrylate, phosphonosuccinic acid, 0-PO 4 , p-P0 4 and gluconate. It is as effective as HPA.
  • a phosphate dispersant polymer polymer 1, commonly used in cooling water systems to prevent scale formation
  • the compound of Example 1 is still a more effective mild steel corrosion inhibitor than PCAM.

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  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Organic Chemistry (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Mechanical Engineering (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Chemical & Material Sciences (AREA)
  • Hydrology & Water Resources (AREA)
  • Water Supply & Treatment (AREA)
  • Environmental & Geological Engineering (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Inorganic Chemistry (AREA)
  • Physics & Mathematics (AREA)
  • Combustion & Propulsion (AREA)
  • Thermal Sciences (AREA)
  • Preventing Corrosion Or Incrustation Of Metals (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
  • Treatment Of Water By Oxidation Or Reduction (AREA)
  • Fireproofing Substances (AREA)
PCT/US2002/005598 2001-04-02 2002-02-25 Corrosion inhibitors for aqueous systems Ceased WO2002079105A1 (en)

Priority Applications (10)

Application Number Priority Date Filing Date Title
KR1020037013011A KR100983521B1 (ko) 2001-04-02 2002-02-25 수계용 부식 억제제
PL364137A PL206324B1 (pl) 2001-04-02 2002-02-25 Sposób powstrzymywania korozji w wodnych systemach
AU2002252089A AU2002252089B2 (en) 2001-04-02 2002-02-25 Corrosion inhibitors for aqueous systems
BRPI0208594-1A BR0208594B1 (pt) 2001-04-02 2002-02-25 método de inibição de corrosão em um sistema aquoso industrial.
JP2002577739A JP4180383B2 (ja) 2001-04-02 2002-02-25 水系システム用腐食防止剤
EP02721144A EP1379473B1 (en) 2001-04-02 2002-02-25 A method for inhibiting corrosion
AT02721144T ATE527218T1 (de) 2001-04-02 2002-02-25 Verfahren zur hemmung der korrosion
CA002442474A CA2442474C (en) 2001-04-02 2002-02-25 Corrosion inhibitors for aqueous systems
HU0303762A HU228325B1 (en) 2001-04-02 2002-02-25 Corrosion inhibitors for aqueous systems
ES02721144T ES2374284T3 (es) 2001-04-02 2002-02-25 Un método para inhibir la corrosión.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US82449201A 2001-04-02 2001-04-02
US09/824,492 2001-04-02

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WO2002079105A1 true WO2002079105A1 (en) 2002-10-10

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EP (1) EP1379473B1 (https=)
JP (1) JP4180383B2 (https=)
KR (1) KR100983521B1 (https=)
CN (1) CN1244503C (https=)
AT (1) ATE527218T1 (https=)
AU (1) AU2002252089B2 (https=)
BR (1) BR0208594B1 (https=)
CA (1) CA2442474C (https=)
ES (1) ES2374284T3 (https=)
HU (1) HU228325B1 (https=)
PL (1) PL206324B1 (https=)
RU (1) RU2324767C2 (https=)
WO (1) WO2002079105A1 (https=)

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2004059121A1 (en) * 2002-12-20 2004-07-15 Albemarle Corporation Biocidal control in recovery of oil by water injection
US7223719B1 (en) 2004-03-16 2007-05-29 Albemarle Corporation Breaker composition and process
US7578968B1 (en) 2002-05-03 2009-08-25 Albemarle Corporation Microbiological control in oil or gas field operations
US9670434B2 (en) 2012-09-13 2017-06-06 Ecolab Usa Inc. Detergent composition comprising phosphinosuccinic acid adducts and methods of use
US9752105B2 (en) 2012-09-13 2017-09-05 Ecolab Usa Inc. Two step method of cleaning, sanitizing, and rinsing a surface
US9994799B2 (en) 2012-09-13 2018-06-12 Ecolab Usa Inc. Hard surface cleaning compositions comprising phosphinosuccinic acid adducts and methods of use
US11149202B1 (en) 2016-12-13 2021-10-19 Ecolab Usa Inc. Tetracarboxylic acid combinations for corrosion inhibition
US11306400B2 (en) 2015-05-28 2022-04-19 Ecolab Usa Inc. 2-substituted imidazole and benzimidazole corrosion inhibitors
US12203176B2 (en) * 2019-08-07 2025-01-21 Ecolab Usa Inc. Corrosion inhibitor for systems with mixed metallurgy

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
MY138251A (en) * 2001-06-06 2009-05-29 Thermphos Trading Gmbh Method for inhibiting calcium salt scale
ATE492682T1 (de) * 2001-06-06 2011-01-15 Dequest Ag Verfahren und wässerige zusammensetzung zur herstellung von verbessertem zellstoff
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CA2442474C (en) 2009-12-08
BR0208594B1 (pt) 2011-02-08
RU2003132068A (ru) 2005-03-10
BR0208594A (pt) 2004-12-21
CA2442474A1 (en) 2002-10-10
HUP0303762A3 (en) 2008-03-28
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ES2374284T3 (es) 2012-02-15
JP4180383B2 (ja) 2008-11-12
EP1379473B1 (en) 2011-10-05
PL364137A1 (en) 2004-12-13
HUP0303762A2 (hu) 2004-03-01
KR100983521B1 (ko) 2010-09-27
ATE527218T1 (de) 2011-10-15
AU2002252089B2 (en) 2007-11-29
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PL206324B1 (pl) 2010-07-30
US6572789B1 (en) 2003-06-03
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RU2324767C2 (ru) 2008-05-20

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