ES458765A1 - Procedure to reduce the formation of costs in metal fosfatation. (Machine-translation by Google Translate, not legally binding) - Google Patents

Procedure to reduce the formation of costs in metal fosfatation. (Machine-translation by Google Translate, not legally binding)

Info

Publication number
ES458765A1
ES458765A1 ES458765A ES458765A ES458765A1 ES 458765 A1 ES458765 A1 ES 458765A1 ES 458765 A ES458765 A ES 458765A ES 458765 A ES458765 A ES 458765A ES 458765 A1 ES458765 A1 ES 458765A1
Authority
ES
Spain
Prior art keywords
fosfatation
translation
costs
procedure
formation
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
ES458765A
Other languages
Spanish (es)
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.)
Hoechst AG
Original Assignee
Hoechst AG
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 Hoechst AG filed Critical Hoechst AG
Publication of ES458765A1 publication Critical patent/ES458765A1/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

Abstract

Crust formation during the phosphating treatment of metals employing an aqueous phosphating solution which contains metal ions and has a pH between 3.0 and 6.0 is reduced by the addition of a poly- alpha -oxyacrylic acid. The poly- alpha -oxyacrylic acid has the following formula < IMAGE > where the symbols have the meaning specified in Claim 1. The said compound is added for as long as it is still soluble in the water.
ES458765A 1976-05-19 1977-05-13 Procedure to reduce the formation of costs in metal fosfatation. (Machine-translation by Google Translate, not legally binding) Expired ES458765A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19762622276 DE2622276A1 (en) 1976-05-19 1976-05-19 METAL PHOSPHATING METHOD

Publications (1)

Publication Number Publication Date
ES458765A1 true ES458765A1 (en) 1978-03-16

Family

ID=5978389

Family Applications (1)

Application Number Title Priority Date Filing Date
ES458765A Expired ES458765A1 (en) 1976-05-19 1977-05-13 Procedure to reduce the formation of costs in metal fosfatation. (Machine-translation by Google Translate, not legally binding)

Country Status (12)

Country Link
AR (1) AR212770A1 (en)
BR (1) BR7703193A (en)
CH (1) CH629539A5 (en)
DE (1) DE2622276A1 (en)
DK (1) DK217377A (en)
ES (1) ES458765A1 (en)
FR (1) FR2352069A1 (en)
IT (1) IT1084699B (en)
NL (1) NL7705325A (en)
NO (1) NO771743L (en)
PT (1) PT66563B (en)
SE (1) SE7705874L (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4417965A1 (en) * 1994-05-21 1995-11-23 Henkel Kgaa Iron phosphating using substituted monocarboxylic acids

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3136663A (en) * 1960-10-24 1964-06-09 Kelite Corp Compositions and methods for preservation of metals
DE2211256C2 (en) * 1972-03-09 1982-12-02 Hoechst Ag, 6000 Frankfurt Process for the preparation of poly-α-oxy-acrylic acid
GB1549856A (en) * 1975-06-20 1979-08-08 Ici Ltd Phosphating process

Also Published As

Publication number Publication date
AR212770A1 (en) 1978-09-29
PT66563A (en) 1977-06-01
NL7705325A (en) 1977-11-22
FR2352069A1 (en) 1977-12-16
BR7703193A (en) 1978-01-31
SE7705874L (en) 1977-11-20
IT1084699B (en) 1985-05-28
DE2622276A1 (en) 1977-12-08
DK217377A (en) 1977-11-20
NO771743L (en) 1977-11-22
PT66563B (en) 1979-01-22
CH629539A5 (en) 1982-04-30
FR2352069B1 (en) 1981-07-24

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