EP0415807A3 - Acidic cleaning process for metal products containing titanium or a chemical element of the titanium family - Google Patents

Acidic cleaning process for metal products containing titanium or a chemical element of the titanium family Download PDF

Info

Publication number
EP0415807A3
EP0415807A3 EP19900402144 EP90402144A EP0415807A3 EP 0415807 A3 EP0415807 A3 EP 0415807A3 EP 19900402144 EP19900402144 EP 19900402144 EP 90402144 A EP90402144 A EP 90402144A EP 0415807 A3 EP0415807 A3 EP 0415807A3
Authority
EP
European Patent Office
Prior art keywords
titanium
cleaning process
products containing
chemical element
metal products
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.)
Granted
Application number
EP19900402144
Other languages
French (fr)
Other versions
EP0415807A2 (en
EP0415807B1 (en
Inventor
Dominique Henriet
Didier Paul
Laurent Prost
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.)
USINOR SA
Ugine SA
Original Assignee
Ugine Aciers de Chatillon et Guegnon
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 Ugine Aciers de Chatillon et Guegnon filed Critical Ugine Aciers de Chatillon et Guegnon
Publication of EP0415807A2 publication Critical patent/EP0415807A2/en
Publication of EP0415807A3 publication Critical patent/EP0415807A3/en
Application granted granted Critical
Publication of EP0415807B1 publication Critical patent/EP0415807B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • C23G1/02—Cleaning or pickling metallic material with solutions or molten salts with acid solutions
    • C23G1/10—Other heavy metals
    • C23G1/106—Other heavy metals refractory metals
    • 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
    • C23G1/02—Cleaning or pickling metallic material with solutions or molten salts with acid solutions

Landscapes

  • Chemical & Material Sciences (AREA)
  • Metallurgy (AREA)
  • General Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Organic Chemistry (AREA)
  • Cleaning And De-Greasing Of Metallic Materials By Chemical Methods (AREA)
  • Inorganic Compounds Of Heavy Metals (AREA)
  • Chemical Treatment Of Metals (AREA)
  • Transition And Organic Metals Composition Catalysts For Addition Polymerization (AREA)
  • Materials For Medical Uses (AREA)
  • Cosmetics (AREA)
  • Manufacture And Refinement Of Metals (AREA)

Abstract

The process for pickling in an acid bath containing an oxidant is distinguished in that, to increase the action of the pickling process, at least one peroxygenated compound of titanium or at least one element of the titanium family included in the product to be pickled is formed, with the metal ionised to a higher valency, the formation of the peroxygenated compound is monitored by measuring the redox potential and the quantity of oxidising agent is limited to conserve an oxy-reduction potential above the passivation potential of the metal product.
EP90402144A 1989-07-26 1990-07-25 Acidic cleaning process for metal products containing titanium or a chemical element of the titanium family Expired - Lifetime EP0415807B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR8910093A FR2650303B1 (en) 1989-07-26 1989-07-26 PROCESS FOR ACIDIC STRIPPING OF METAL PRODUCTS CONTAINING TITANIUM OR AT LEAST ONE CHEMICAL ELEMENT OF THE TITANIUM FAMILY
FR8910093 1989-07-26

Publications (3)

Publication Number Publication Date
EP0415807A2 EP0415807A2 (en) 1991-03-06
EP0415807A3 true EP0415807A3 (en) 1991-03-20
EP0415807B1 EP0415807B1 (en) 1994-10-19

Family

ID=9384174

Family Applications (1)

Application Number Title Priority Date Filing Date
EP90402144A Expired - Lifetime EP0415807B1 (en) 1989-07-26 1990-07-25 Acidic cleaning process for metal products containing titanium or a chemical element of the titanium family

Country Status (12)

Country Link
EP (1) EP0415807B1 (en)
JP (1) JP2945136B2 (en)
KR (1) KR100191864B1 (en)
AT (1) ATE113080T1 (en)
AU (1) AU634277B2 (en)
CA (1) CA2037893C (en)
DE (1) DE69013447T2 (en)
ES (1) ES2064686T3 (en)
FI (1) FI93371C (en)
FR (1) FR2650303B1 (en)
RU (1) RU2168560C2 (en)
WO (1) WO1991002109A1 (en)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
IT1255855B (en) * 1992-10-12 1995-11-17 Cesare Pedrazzini PICKLING AND PASSIVATION PROCESS FOR TITANIUM SHEETS IN TAPE, WITHOUT THE USE OF NITRIC ACID.
JP3751324B2 (en) * 1993-12-10 2006-03-01 忠弘 大見 Substrate surface cleaning method and surface cleaning agent
IT1288407B1 (en) * 1996-12-09 1998-09-22 Sviluppo Materiali Spa METHOD FOR PICKLING METAL ALLOY PRODUCTS CONTAINING IRON AND TITANIUM AND ITS ALLOYS
IT1290947B1 (en) * 1997-02-25 1998-12-14 Sviluppo Materiali Spa METHOD AND DEVICE FOR THE PICKLING OF METALLIC ALLOY PRODUCTS IN THE ABSENCE OF NITRIC ACID AND FOR THE RECOVERY OF EXHAUSTED SOLUTIONS
RU2496819C1 (en) * 2012-05-30 2013-10-27 Федеральное государственное бюджетное образовательное учреждение высшего профессионального образования "Национальный исследовательский Томский политехнический университет" Titanium etchant
KR101669718B1 (en) 2014-07-01 2016-10-27 김동회 Incubator with multi-directional angle structure

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB360126A (en) * 1929-10-19 1931-11-05 Hirsch Kupfer & Messingwerke Method of pickling oxidised metals
US3258429A (en) * 1963-09-19 1966-06-28 Ronald D Weed Decontamination solution and method
DE2358683A1 (en) * 1973-11-24 1975-06-05 Kalman Von Dipl Phys Soos Pickling, etching or cleaning of metals, esp. steel - using ozone accelerator in addn. to the other chemicals
GB2000196A (en) * 1977-06-24 1979-01-04 Tokai Electro Chemical Co Controlling stainless steel pickling solution by hydrogen peroxide and sulphuric acid addition
FR2587369A1 (en) * 1985-09-19 1987-03-20 Ugine Gueugnon Sa ACID PICKLING PROCESS OF STAINLESS STEEL PRODUCTS

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS526853B2 (en) * 1972-12-22 1977-02-25
SU992179A1 (en) * 1981-09-17 1983-01-30 Фрунзенский политехнический институт Percussion-action machine
JPS6277489A (en) * 1985-09-30 1987-04-09 Nippon Mining Co Ltd Method for pickling metallic material
JPS62109998A (en) * 1985-11-07 1987-05-21 Kobe Steel Ltd Pretreatment of valve metal before anodic oxidation
EP0259533A1 (en) * 1986-09-11 1988-03-16 Eka Nobel Aktiebolag Method of reducing the emission of nitrogen oxides from a liquid containing nitric acid

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB360126A (en) * 1929-10-19 1931-11-05 Hirsch Kupfer & Messingwerke Method of pickling oxidised metals
US3258429A (en) * 1963-09-19 1966-06-28 Ronald D Weed Decontamination solution and method
DE2358683A1 (en) * 1973-11-24 1975-06-05 Kalman Von Dipl Phys Soos Pickling, etching or cleaning of metals, esp. steel - using ozone accelerator in addn. to the other chemicals
GB2000196A (en) * 1977-06-24 1979-01-04 Tokai Electro Chemical Co Controlling stainless steel pickling solution by hydrogen peroxide and sulphuric acid addition
FR2587369A1 (en) * 1985-09-19 1987-03-20 Ugine Gueugnon Sa ACID PICKLING PROCESS OF STAINLESS STEEL PRODUCTS

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
CHEMICAL ABSTRACTS, vol. 107, no. 26, 28 décembre 1987, page 82, résumé no. 241263w, Columbus, Ohio, US; & JP-A-62 077 489 (NIPPON MINING) 09-04-1987 *
PATENT ABSTRACTS OF JAPAN, vol. 11, no. 322 (C-453)[2769], 20 octobre 1987; & JP-A-62 109 998 (KOBE STEEL) 21-05-1987 *

Also Published As

Publication number Publication date
EP0415807A2 (en) 1991-03-06
EP0415807B1 (en) 1994-10-19
KR100191864B1 (en) 1999-06-15
JPH04501139A (en) 1992-02-27
DE69013447T2 (en) 1995-02-23
RU2168560C2 (en) 2001-06-10
CA2037893C (en) 2001-07-24
FI911398A0 (en) 1991-03-22
JP2945136B2 (en) 1999-09-06
CA2037893A1 (en) 1991-01-27
FI93371B (en) 1994-12-15
AU6168490A (en) 1991-03-11
AU634277B2 (en) 1993-02-18
ES2064686T3 (en) 1995-02-01
WO1991002109A1 (en) 1991-02-21
FR2650303A1 (en) 1991-02-01
DE69013447D1 (en) 1994-11-24
KR920701524A (en) 1992-08-11
ATE113080T1 (en) 1994-11-15
FI93371C (en) 1995-03-27
FR2650303B1 (en) 1993-12-10

Similar Documents

Publication Publication Date Title
EP0311954A3 (en) Use of sulfamic acid to inhibit phosphonate decomposition by chlorine-bromine mixtures
GR3018681T3 (en) Process for pickling and passivating stainless steel without using nitric acid.
EP0415807A3 (en) Acidic cleaning process for metal products containing titanium or a chemical element of the titanium family
FI920787A0 (en) Method for pickling steel material such as stainless steels and alloy steels
ES8700786A1 (en) Method of decontaminating metal surfaces.
JPS57141496A (en) Method for preventing putrefaction of metal working oil
ES8705930A1 (en) Compositions and process for chemically polishing steel surfaces.
DE69219072D1 (en) Process for the continuous pickling of steel material in a treatment line
JPS57185991A (en) Corrosion inhibitor for stainless steel
SE8600158L (en) Means for simultaneous cleaning of metal surfaces from corrosion products, oxide layers and slag
JPS5638477A (en) Formation of cupric oxide coating
ES2040162A1 (en) Aqueous ferric sulphate solutions
JPS52105573A (en) Treatment of acid washing waste liquid
Parputs et al. Anodic Behavior and Passivation of Iron in Concentrated Nitrate Solutions
Kallast Increasing the Working Life of Electrolytes in Pickling Baths
JPS56133475A (en) Pickling method for stainless steel
JPS57108273A (en) Nitric acid pickling solution for metal
Konyk et al. Ozonolysis of urea in dilute aqueous solutions
Henriet et al. Acidic Cleaning Process for Metal Products Containing Titanium or a Chemical Element of the Titanium Family
Semenova Steel Dissolution in an Ammoniate--Urotropin Zinc-Plating Electrolyte
JPS56150171A (en) Partial plating method of molten metal and plating inhibitor
Popov Pitting Generation Theory
JPS54123249A (en) Treatment of cod component
JPS5599382A (en) Treating method for aqueous solution of perchloric acid
TW366369B (en) Process for dissolving oxides deposited on a metal substrate

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

PUAL Search report despatched

Free format text: ORIGINAL CODE: 0009013

AK Designated contracting states

Kind code of ref document: A2

Designated state(s): AT BE CH DE DK ES FR GB GR IT LI LU NL SE

AK Designated contracting states

Kind code of ref document: A3

Designated state(s): AT BE CH DE DK ES FR GB GR IT LI LU NL SE

17P Request for examination filed

Effective date: 19910620

17Q First examination report despatched

Effective date: 19920403

RAP1 Party data changed (applicant data changed or rights of an application transferred)

Owner name: UGINE S.A.

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

RIN1 Information on inventor provided before grant (corrected)

Inventor name: PROST, LAURENT

Inventor name: PAUL, DIDIER

Inventor name: HENRIET, DOMINIQUE

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): AT BE CH DE DK ES FR GB GR IT LI LU NL SE

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: DK

Effective date: 19941019

REF Corresponds to:

Ref document number: 113080

Country of ref document: AT

Date of ref document: 19941115

Kind code of ref document: T

ITF It: translation for a ep patent filed

Owner name: BUGNION S.P.A.

GBT Gb: translation of ep patent filed (gb section 77(6)(a)/1977)

Effective date: 19941020

REF Corresponds to:

Ref document number: 69013447

Country of ref document: DE

Date of ref document: 19941124

EAL Se: european patent in force in sweden

Ref document number: 90402144.1

REG Reference to a national code

Ref country code: ES

Ref legal event code: FG2A

Ref document number: 2064686

Country of ref document: ES

Kind code of ref document: T3

REG Reference to a national code

Ref country code: GR

Ref legal event code: FG4A

Free format text: 3014742

PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT

26N No opposition filed
REG Reference to a national code

Ref country code: FR

Ref legal event code: TP

Ref country code: FR

Ref legal event code: CD

Ref country code: FR

Ref legal event code: CA

REG Reference to a national code

Ref country code: CH

Ref legal event code: PUE

Owner name: USINOR TRANSFER- UGINE S.A.

Ref country code: CH

Ref legal event code: PFA

Free format text: UGINE S.A. TRANSFER- USINOR SACILOR * USINOR SACILOR TRANSFER- USINOR

REG Reference to a national code

Ref country code: FR

Ref legal event code: TP

Ref country code: FR

Ref legal event code: CD

BECH Be: change of holder

Free format text: 19991104 S.A. *UGINE

BECN Be: change of holder's name

Effective date: 19991104

REG Reference to a national code

Ref country code: ES

Ref legal event code: PC2A

NLS Nl: assignments of ep-patents

Owner name: UGINE S.A.;USINOR SACILOR

NLT1 Nl: modifications of names registered in virtue of documents presented to the patent office pursuant to art. 16 a, paragraph 1

Owner name: USINOR

REG Reference to a national code

Ref country code: GB

Ref legal event code: IF02

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: CH

Payment date: 20020617

Year of fee payment: 13

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: NL

Payment date: 20020618

Year of fee payment: 13

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: SE

Payment date: 20020619

Year of fee payment: 13

Ref country code: AT

Payment date: 20020619

Year of fee payment: 13

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: GR

Payment date: 20020626

Year of fee payment: 13

Ref country code: ES

Payment date: 20020626

Year of fee payment: 13

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: DE

Payment date: 20020708

Year of fee payment: 13

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: FR

Payment date: 20020715

Year of fee payment: 13

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: LU

Payment date: 20020719

Year of fee payment: 13

Ref country code: GB

Payment date: 20020719

Year of fee payment: 13

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: BE

Payment date: 20020805

Year of fee payment: 13

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: LU

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20030725

Ref country code: GB

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20030725

Ref country code: AT

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20030725

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: SE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20030726

Ref country code: ES

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20030726

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: LI

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20030731

Ref country code: CH

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20030731

Ref country code: BE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20030731

BERE Be: lapsed

Owner name: S.A. *UGINE

Effective date: 20030731

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: NL

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20040201

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: DE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20040203

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: GR

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20040205

EUG Se: european patent has lapsed
REG Reference to a national code

Ref country code: CH

Ref legal event code: PL

GBPC Gb: european patent ceased through non-payment of renewal fee

Effective date: 20030725

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: FR

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20040331

NLV4 Nl: lapsed or anulled due to non-payment of the annual fee

Effective date: 20040201

REG Reference to a national code

Ref country code: FR

Ref legal event code: ST

REG Reference to a national code

Ref country code: ES

Ref legal event code: FD2A

Effective date: 20030726

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: IT

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES;WARNING: LAPSES OF ITALIAN PATENTS WITH EFFECTIVE DATE BEFORE 2007 MAY HAVE OCCURRED AT ANY TIME BEFORE 2007. THE CORRECT EFFECTIVE DATE MAY BE DIFFERENT FROM THE ONE RECORDED.

Effective date: 20050725