GB447176A - Improvements relating to rustproofing compositions - Google Patents

Improvements relating to rustproofing compositions

Info

Publication number
GB447176A
GB447176A GB26981/35A GB2698135A GB447176A GB 447176 A GB447176 A GB 447176A GB 26981/35 A GB26981/35 A GB 26981/35A GB 2698135 A GB2698135 A GB 2698135A GB 447176 A GB447176 A GB 447176A
Authority
GB
United Kingdom
Prior art keywords
solution
rustproofing
sulphide
improvements relating
diluted
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
GB26981/35A
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.)
WILLIAM IVAN WALTERS
Original Assignee
WILLIAM IVAN WALTERS
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 WILLIAM IVAN WALTERS filed Critical WILLIAM IVAN WALTERS
Publication of GB447176A publication Critical patent/GB447176A/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
    • C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
    • C23C22/00—Chemical surface treatment of metallic material by reaction of the surface with a reactive liquid, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals
    • C23C22/05—Chemical surface treatment of metallic material by reaction of the surface with a reactive liquid, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals using aqueous solutions
    • C23C22/06—Chemical surface treatment of metallic material by reaction of the surface with a reactive liquid, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals using aqueous solutions using aqueous acidic solutions with pH less than 6
    • C23C22/07—Chemical surface treatment of metallic material by reaction of the surface with a reactive liquid, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals using aqueous solutions using aqueous acidic solutions with pH less than 6 containing phosphates
    • C23C22/08—Orthophosphates

Landscapes

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

Abstract

A rustproofing-composition is prepared by dissolving iron sulphide in a concentrated aqueous solution of phosphoric acid or by dissolving iron or another iron compound in the acid and adding a sulphide, for example, sodium, potassium, or calcium sulphide, either during the reaction or subsequently. The solution is filtered and, when required for rustproofing, is diluted, the articles being immersed in the diluted solution which is maintained at an elevated temperature, e.g. 100 DEG C. Sodium carbonate may be added to the solution at the time of its application.
GB26981/35A 1933-10-12 1935-09-30 Improvements relating to rustproofing compositions Expired GB447176A (en)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
FR419487X 1933-10-12
FR776283T 1933-10-12
FR45935T 1934-09-29
FR447176X 1934-09-29

Publications (1)

Publication Number Publication Date
GB447176A true GB447176A (en) 1936-05-13

Family

ID=61026426

Family Applications (2)

Application Number Title Priority Date Filing Date
GB34485/33A Expired GB419487A (en) 1933-10-12 1933-12-07 An improved rust preventing composition and method of making the same
GB26981/35A Expired GB447176A (en) 1933-10-12 1935-09-30 Improvements relating to rustproofing compositions

Family Applications Before (1)

Application Number Title Priority Date Filing Date
GB34485/33A Expired GB419487A (en) 1933-10-12 1933-12-07 An improved rust preventing composition and method of making the same

Country Status (2)

Country Link
FR (2) FR776283A (en)
GB (2) GB419487A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2514941A (en) * 1946-05-13 1950-07-11 Walterisation Company Ltd Process for increasing the corrosion-resistance of metals
US2614948A (en) * 1947-03-27 1952-10-21 Michael W Freeman Producing modified machine elements
US2762733A (en) * 1953-03-27 1956-09-11 Parker Rust Proof Co Composition and method for forming black coatings for metals

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2514941A (en) * 1946-05-13 1950-07-11 Walterisation Company Ltd Process for increasing the corrosion-resistance of metals
US2614948A (en) * 1947-03-27 1952-10-21 Michael W Freeman Producing modified machine elements
US2762733A (en) * 1953-03-27 1956-09-11 Parker Rust Proof Co Composition and method for forming black coatings for metals

Also Published As

Publication number Publication date
GB419487A (en) 1934-11-13
FR45935E (en) 1936-01-08
FR776283A (en) 1935-01-22

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