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CA2071944A1 - Stripping solution and process for stripping compounds of titanium from base metals - Google Patents

Stripping solution and process for stripping compounds of titanium from base metals

Info

Publication number
CA2071944A1
CA2071944A1 CA 2071944 CA2071944A CA2071944A1 CA 2071944 A1 CA2071944 A1 CA 2071944A1 CA 2071944 CA2071944 CA 2071944 CA 2071944 A CA2071944 A CA 2071944A CA 2071944 A1 CA2071944 A1 CA 2071944A1
Authority
CA
Canada
Prior art keywords
stripping
titanium
solution
compounds
base metals
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
CA 2071944
Other languages
French (fr)
Other versions
CA2071944C (en
Inventor
Jiinjen Albert Sue
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.)
Praxair ST Technology Inc
Original Assignee
Individual
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 Individual filed Critical Individual
Publication of CA2071944A1 publication Critical patent/CA2071944A1/en
Application granted granted Critical
Publication of CA2071944C publication Critical patent/CA2071944C/en
Anticipated expiration legal-status Critical
Expired - Fee Related 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
    • 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
    • C23G1/20—Other heavy metals

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • ing And Chemical Polishing (AREA)
  • Detergent Compositions (AREA)
  • Cleaning And De-Greasing Of Metallic Materials By Chemical Methods (AREA)

Abstract

An aqueous stripping solution and method for selectively removing a titanium compound from a base metal. The aqueous solution contains a source of hydrogen peroxide, an alkali source of hydroxyl ions and an acid with the components in a concentration such that the pH of the solution is above 8.
CA 2071944 1990-10-19 1991-10-18 Stripping solution and process for stripping compounds of titanium from base metals Expired - Fee Related CA2071944C (en)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
US59983390A 1990-10-19 1990-10-19
US7-599,833 1990-10-19
US74309391A 1991-08-09 1991-08-09
US7-743,093 1991-08-09

Publications (2)

Publication Number Publication Date
CA2071944A1 true CA2071944A1 (en) 1992-04-20
CA2071944C CA2071944C (en) 1998-02-03

Family

ID=27083467

Family Applications (1)

Application Number Title Priority Date Filing Date
CA 2071944 Expired - Fee Related CA2071944C (en) 1990-10-19 1991-10-18 Stripping solution and process for stripping compounds of titanium from base metals

Country Status (5)

Country Link
EP (1) EP0506928B1 (en)
JP (1) JP2989265B2 (en)
CA (1) CA2071944C (en)
DE (1) DE69113020T2 (en)
WO (1) WO1992007110A1 (en)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6432219B1 (en) 1997-11-10 2002-08-13 Unakis Trading Ag Method for separating layers from articles
EP1093534B1 (en) * 1998-06-11 2007-12-26 Oerlikon Trading AG, Trübbach Method for removing layers of hard material
RU2156322C2 (en) * 1998-07-21 2000-09-20 Акционерное общество открытого типа "Уральский завод гражданской авиации" Composition for cleansing metal surfaces
US7611588B2 (en) 2004-11-30 2009-11-03 Ecolab Inc. Methods and compositions for removing metal oxides
DE102005049249B4 (en) * 2005-10-14 2018-03-29 MTU Aero Engines AG Process for stripping a gas turbine component
JP6101832B2 (en) * 2016-02-16 2017-03-22 三菱重工業株式会社 How to determine the availability of acidic aqueous solutions

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4443268A (en) * 1981-11-12 1984-04-17 The Dow Chemical Company Process for removing copper and copper oxide encrustations from ferrous surfaces
FR2564350B1 (en) * 1984-05-17 1987-11-20 Snecma DIFFUSION REPAIR PROCESS
FR2601968B1 (en) * 1986-07-25 1989-04-14 Interox Sa STRIPPING BATHS AND METHOD FOR REMOVING A COATING COMPRISING NIOBIUM ON A SUBSTRATE.
JPS6353266A (en) * 1986-08-22 1988-03-07 Hitachi Ltd Side seal device
JPH0622218B2 (en) * 1988-08-06 1994-03-23 富士通株式会社 Etching method

Also Published As

Publication number Publication date
DE69113020D1 (en) 1995-10-19
CA2071944C (en) 1998-02-03
EP0506928B1 (en) 1995-09-13
WO1992007110A1 (en) 1992-04-30
EP0506928A1 (en) 1992-10-07
JPH05503320A (en) 1993-06-03
JP2989265B2 (en) 1999-12-13
DE69113020T2 (en) 1996-04-18

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Legal Events

Date Code Title Description
EEER Examination request
MKLA Lapsed