GB1444699A - Electrolytic bath for the removal of metals - Google Patents

Electrolytic bath for the removal of metals

Info

Publication number
GB1444699A
GB1444699A GB5461474A GB5461474A GB1444699A GB 1444699 A GB1444699 A GB 1444699A GB 5461474 A GB5461474 A GB 5461474A GB 5461474 A GB5461474 A GB 5461474A GB 1444699 A GB1444699 A GB 1444699A
Authority
GB
United Kingdom
Prior art keywords
electrolytic bath
dec
salts
alkali metal
metallic coatings
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
GB5461474A
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 GB1444699A publication Critical patent/GB1444699A/en
Expired legal-status Critical Current

Links

Classifications

    • CCHEMISTRY; METALLURGY
    • C25ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
    • C25FPROCESSES FOR THE ELECTROLYTIC REMOVAL OF MATERIALS FROM OBJECTS; APPARATUS THEREFOR
    • C25F5/00Electrolytic stripping of metallic layers or coatings

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Electroplating And Plating Baths Therefor (AREA)
  • Cleaning And De-Greasing Of Metallic Materials By Chemical Methods (AREA)
  • ing And Chemical Polishing (AREA)

Abstract

1444699 Electrolytic stripping of metallic coatings HOECHST AG 18 Dec 1974 [20 Dec 1973] 54614/74 Heading C7B An aqueous electrolytic bath for removing metallic coatings, e.g. Ni, Cr, Zn, Sn, Cu, Cd, or Ag plate, from steel parts, contains nitric acid and/ or one or more of its salts with inorganic and/or organic bases, e.g. between 15 and 60 g/l of alkali metal hydroxide, ammonium hydroxide, an aliphatic amine and/or aminoalcohol; one or more organic acids and/or their salts, e.g. between 10 and 40 g/l of formic, acetic, propionic, oxalic, malonic, lactic and/or citric; and a water-soluble iodine compound, e.g. between 0.05 and 1.0 g/l of alkali metal or ammonium iodide, or cuprous iodide in total proportion greater than solubility. The pH may be between 6.5 and 7.5.
GB5461474A 1973-12-20 1974-12-18 Electrolytic bath for the removal of metals Expired GB1444699A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE2363352A DE2363352C3 (en) 1973-12-20 1973-12-20 Bath for the electrolytic stripping of metals

Publications (1)

Publication Number Publication Date
GB1444699A true GB1444699A (en) 1976-08-04

Family

ID=5901294

Family Applications (1)

Application Number Title Priority Date Filing Date
GB5461474A Expired GB1444699A (en) 1973-12-20 1974-12-18 Electrolytic bath for the removal of metals

Country Status (9)

Country Link
US (1) US3912603A (en)
BE (1) BE823676A (en)
CH (1) CH603833A5 (en)
DE (1) DE2363352C3 (en)
FR (1) FR2255397B1 (en)
GB (1) GB1444699A (en)
IT (1) IT1026066B (en)
NL (1) NL7416696A (en)
SE (1) SE7415930L (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2117406A (en) * 1982-03-08 1983-10-12 Occidental Chem Co Electrolytic stripping
GB2121439A (en) * 1982-05-27 1983-12-21 Occidental Chem Co Electrolytic stripping composition and process

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4090935A (en) * 1977-07-12 1978-05-23 The United States Of America As Represented By The Secretary Of The Interior Process for recovering silver, copper and stainless steel from silver brazed stainless steel sections
US4264419A (en) * 1979-10-09 1981-04-28 Olin Corporation Electrochemical detinning of copper base alloys
US4233124A (en) * 1979-10-29 1980-11-11 Oxy Metal Industries Corporation Electrolytic stripping bath and process
US4264420A (en) * 1979-10-29 1981-04-28 Oxy Metal Industries Corporation Electrolytic stripping bath and process
US4664763A (en) * 1985-05-08 1987-05-12 M&T Chemicals Inc. Process for stripping nickel or nickel-alloy plating in a chromic acid solution
BE1001539A3 (en) * 1988-03-17 1989-11-21 Bekaert Sa Nv Metal fibers obtained by bundled PULLING.
US4968397A (en) * 1989-11-27 1990-11-06 Asher Reginald K Non-cyanide electrode cleaning process
USRE34227E (en) * 1989-11-27 1993-04-20 Motorola, Inc. Non-cyanide electrode cleaning process
DE102004053135A1 (en) * 2004-10-29 2006-05-04 Siemens Ag Process for removing a coating containing a chromium and/or chromium oxide compound from a component comprises placing the component in a bath containing an alkanol-amine compound as inhibitor and removing after a treatment time
WO2011044340A1 (en) * 2009-10-08 2011-04-14 First Solar, Inc. Electrochemical method and apparatus for removing coating from a substrate
EP3168332B2 (en) 2015-03-13 2023-07-26 Okuno Chemical Industries Co., Ltd. Use of a jig electrolytic stripper for removing palladium from an object and a method for removing palladium
CN106367803A (en) * 2016-09-05 2017-02-01 上海瑞尔实业有限公司 Method for stripping copper-nickel-chrome plating layer from plastic plating hanger

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2371529A (en) * 1941-09-20 1945-03-13 Dow Chemical Co Removal of electrodeposited metals
US2581490A (en) * 1947-03-11 1952-01-08 Gen Motors Corp Electrolytic process of stripping metallic coatings from a ferrous metal base
US3151049A (en) * 1958-09-29 1964-09-29 Union Carbide Corp Electrolytic method of and bath for stripping coatings from bases
US3819494A (en) * 1973-03-29 1974-06-25 Fountain Plating Co Inc Method of removing braze

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2117406A (en) * 1982-03-08 1983-10-12 Occidental Chem Co Electrolytic stripping
GB2121439A (en) * 1982-05-27 1983-12-21 Occidental Chem Co Electrolytic stripping composition and process

Also Published As

Publication number Publication date
BE823676A (en) 1975-06-20
DE2363352A1 (en) 1975-10-02
IT1026066B (en) 1978-09-20
FR2255397A1 (en) 1975-07-18
SE7415930L (en) 1975-06-23
FR2255397B1 (en) 1980-11-07
NL7416696A (en) 1975-06-24
DE2363352B2 (en) 1980-04-17
US3912603A (en) 1975-10-14
DE2363352C3 (en) 1980-12-11
CH603833A5 (en) 1978-08-31

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PCNP Patent ceased through non-payment of renewal fee