GB863117A - Improved process for cleaning metals - Google Patents

Improved process for cleaning metals

Info

Publication number
GB863117A
GB863117A GB448557A GB448557A GB863117A GB 863117 A GB863117 A GB 863117A GB 448557 A GB448557 A GB 448557A GB 448557 A GB448557 A GB 448557A GB 863117 A GB863117 A GB 863117A
Authority
GB
United Kingdom
Prior art keywords
rust
solution
heptoses
tetroses
pentoses
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
GB448557A
Inventor
Richard Elliott Shaw
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.)
Imperial Chemical Industries Ltd
Original Assignee
Imperial Chemical Industries Ltd
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
Priority to BE564594D priority Critical patent/BE564594A/xx
Application filed by Imperial Chemical Industries Ltd filed Critical Imperial Chemical Industries Ltd
Priority to GB448557A priority patent/GB863117A/en
Priority to FR1191215D priority patent/FR1191215A/en
Publication of GB863117A publication Critical patent/GB863117A/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
    • C23G—CLEANING OR DE-GREASING OF METALLIC MATERIAL BY CHEMICAL METHODS OTHER THAN ELECTROLYSIS
    • C23G1/00—Cleaning or pickling metallic material with solutions or molten salts
    • C23G1/14—Cleaning or pickling metallic material with solutions or molten salts with alkaline solutions
    • C23G1/19—Iron or steel

Abstract

A process of removing rust from ferriferous articles comprises treating the articles with an aqueous solution in which the rust-removing ingredients consist of at least 7% by weight of an alkali metal hydroxide and at least 3% by weight of an organic additive. The organic additive is one of the group consisting of trialkanolamines, inositols, polyhydroxy alcohols derived from tetroses, pentoses, hexoses and heptoses, and mono- and dicarboxylic acids derived from tetroses, pentoses, hexoses and heptoses and water soluble salts thereof; examples of such compounds are saccharic, gluconic, mucic, and tartaric acids or their sodium or potassium salts, mannitol, sorbital, or erythritol and their structural isomers. The solution may also contain alkali metal silicates and phosphates and surface active reagents and it is stated that such solutions will remove rust, oil, grease, and paint at the same time. It is preferred to use the solution as a dip or a spray at a temperature approaching the boiling point.
GB448557A 1957-02-08 1957-02-08 Improved process for cleaning metals Expired GB863117A (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
BE564594D BE564594A (en) 1957-02-08
GB448557A GB863117A (en) 1957-02-08 1957-02-08 Improved process for cleaning metals
FR1191215D FR1191215A (en) 1957-02-08 1958-02-08 Metal cleaning process

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB448557A GB863117A (en) 1957-02-08 1957-02-08 Improved process for cleaning metals

Publications (1)

Publication Number Publication Date
GB863117A true GB863117A (en) 1961-03-15

Family

ID=9778066

Family Applications (1)

Application Number Title Priority Date Filing Date
GB448557A Expired GB863117A (en) 1957-02-08 1957-02-08 Improved process for cleaning metals

Country Status (3)

Country Link
BE (1) BE564594A (en)
FR (1) FR1191215A (en)
GB (1) GB863117A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2315437A1 (en) * 1973-03-28 1974-10-10 Henkel & Cie Gmbh PROCESS FOR PRE-TREATMENT OF STEEL STRIP SURFACES BEFORE ANNEALING
US4435304A (en) 1982-11-15 1984-03-06 Phillips Petroleum Company Sulfur based metal cleaners
US20190226094A1 (en) * 2018-01-19 2019-07-25 Baker Hughes, A Ge Company, Llc Phosphorous-free, and iron activating agent-free rust removal, inhibition, and passivation

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2315437A1 (en) * 1973-03-28 1974-10-10 Henkel & Cie Gmbh PROCESS FOR PRE-TREATMENT OF STEEL STRIP SURFACES BEFORE ANNEALING
US4435304A (en) 1982-11-15 1984-03-06 Phillips Petroleum Company Sulfur based metal cleaners
US20190226094A1 (en) * 2018-01-19 2019-07-25 Baker Hughes, A Ge Company, Llc Phosphorous-free, and iron activating agent-free rust removal, inhibition, and passivation

Also Published As

Publication number Publication date
BE564594A (en)
FR1191215A (en) 1959-10-19

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