GB1032996A - Improvements in or relating to the prevention of corrosion in water systems - Google Patents

Improvements in or relating to the prevention of corrosion in water systems

Info

Publication number
GB1032996A
GB1032996A GB3824764A GB3824764A GB1032996A GB 1032996 A GB1032996 A GB 1032996A GB 3824764 A GB3824764 A GB 3824764A GB 3824764 A GB3824764 A GB 3824764A GB 1032996 A GB1032996 A GB 1032996A
Authority
GB
United Kingdom
Prior art keywords
corrosion inhibitor
corrosion
polyvinyl alcohol
water
anhydrous
Prior art date
Legal status (The legal status 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 status listed.)
Expired
Application number
GB3824764A
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
WR Grace and Co
Original Assignee
WR Grace and Co
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 WR Grace and Co filed Critical WR Grace and Co
Publication of GB1032996A publication Critical patent/GB1032996A/en
Expired legal-status Critical Current

Links

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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D65/00—Wrappers or flexible covers; Packaging materials of special type or form
    • B65D65/38—Packaging materials of special type or form
    • B65D65/46—Applications of disintegrable, dissolvable or edible materials
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
    • F02B3/00—Engines characterised by air compression and subsequent fuel addition
    • F02B3/06—Engines characterised by air compression and subsequent fuel addition with compression ignition

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Inorganic Chemistry (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Preventing Corrosion Or Incrustation Of Metals (AREA)

Abstract

A package for preventing corrosion in water systems comprises an anhydrous corrosion-inhibiting compound enclosed within a film of a watersoluble polyvinyl alcohol. The corrosion inhibitor may be Na, K, or Li chromate, K or Li dichromate, or an alkali metal chlorophenate. An alkaline buffer such as Na2CO3, K2CO3, NaHCO3 anhydrous Na metaborate, tetracorate or silicate, or an alkali metal polyphosphate may also be present to give a pH of 8.0.-9.5 when dissolved. The weight ratio of corrosion inhibitor:buffer may be 1-4:1, and of corrosion inhibitor: film 100-500:1. The polyvinyl alcohol may contain 5-15% residual acetate groups and be plasticized with glycerol, ethylene glycol, low molecular wieght polyethylene glycols, or ethanol acetamide or formamide. Air may be enclosed to provide buoyancy. The package may be tubular and of such size as to provide 100-5,000 ppm of corrosion inhibitor and 1-20 ppm of dissolved polyvinyl alcohol in the water. It can be used in the cooling systems of diesel engines, recirculating cooling towers, and air conditioning systems.ALSO:A package for preventing corrosion in water systems comprises an anhydrous corrosion-inhibiting compound enclosed within a film of a water-soluble polyvinyl alcohol. The corrosion inhibitor may be Na, K, or Li chromate, K or Li dichromate, or an alkali metal chlorophenate. An alkaline buffer such as Na2CO3, K2CO3, NaHCO3, anhydrous Na metaborate, tetraborate or silicate, or an alkali metal polyphosphate may also be present to give a pH of 8.0-9.5 when dissolved. The weight ratio of corrosion inhibitor: buffer may be 1-4:1, and of corrosion inhibitor: film 100-500:1. The polyvinyl alcohol may contain 5-15% residual acetate groups and be plasticized with glycerol, ethylene glycol, low molecular weight polyethylene glycols, or ethanol acetamide or formamide. Air may be enclosed to provide buoyancy. The package may be tubular and of such size as to provide 100-5000 p.p.m. of corrosion inhibitor and 1-20 p.p.m. of dissolved polyvinyl alcohol in the water. It can be used in the cooling systems of diesel engines, recirculating cooling towers, and air conditioning systems.
GB3824764A 1964-07-08 1964-09-18 Improvements in or relating to the prevention of corrosion in water systems Expired GB1032996A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US38121764A 1964-07-08 1964-07-08

Publications (1)

Publication Number Publication Date
GB1032996A true GB1032996A (en) 1966-06-15

Family

ID=23504153

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3824764A Expired GB1032996A (en) 1964-07-08 1964-09-18 Improvements in or relating to the prevention of corrosion in water systems

Country Status (1)

Country Link
GB (1) GB1032996A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2338979A1 (en) * 1976-01-26 1977-08-19 Basf Farben & Fasern PROCESS FOR COLORING AND COLORING WATER-DILUTED COATING AGENTS, BY MEANS OF PIGMENT PASTES
FR2459268A1 (en) * 1979-06-15 1981-01-09 Borg Warner CHARGED POLYMER COMPOSITIONS FOR THE AUTOMATIC ADDITION OF A CORROSION INHIBITOR TO A COOLANT DEVICE
GB2591292A (en) * 2020-01-27 2021-07-28 Adey Holdings 2008 Ltd Corrosion inhibitor for a central heating system
AU2020310159B2 (en) * 2019-07-11 2022-06-30 Griffin Bros., Inc. Tire enhancement product, package and method

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2338979A1 (en) * 1976-01-26 1977-08-19 Basf Farben & Fasern PROCESS FOR COLORING AND COLORING WATER-DILUTED COATING AGENTS, BY MEANS OF PIGMENT PASTES
FR2459268A1 (en) * 1979-06-15 1981-01-09 Borg Warner CHARGED POLYMER COMPOSITIONS FOR THE AUTOMATIC ADDITION OF A CORROSION INHIBITOR TO A COOLANT DEVICE
AU2020310159B2 (en) * 2019-07-11 2022-06-30 Griffin Bros., Inc. Tire enhancement product, package and method
US11884494B2 (en) 2019-07-11 2024-01-30 Griffin Bros., Inc. Tire enhancement product, package, and method
GB2591292A (en) * 2020-01-27 2021-07-28 Adey Holdings 2008 Ltd Corrosion inhibitor for a central heating system

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