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GB1390268A - Electrolytic regeneration of spent etchant - Google Patents

Electrolytic regeneration of spent etchant

Info

Publication number
GB1390268A
GB1390268A GB4679472A GB4679472A GB1390268A GB 1390268 A GB1390268 A GB 1390268A GB 4679472 A GB4679472 A GB 4679472A GB 4679472 A GB4679472 A GB 4679472A GB 1390268 A GB1390268 A GB 1390268A
Authority
GB
United Kingdom
Prior art keywords
solution
cathode
copper
etching
oct
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
GB4679472A
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.)
Shipley Co Inc
Original Assignee
Shipley Co Inc
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 Shipley Co Inc filed Critical Shipley Co Inc
Publication of GB1390268A publication Critical patent/GB1390268A/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
    • C23F—NON-MECHANICAL REMOVAL OF METALLIC MATERIAL FROM SURFACE; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL; MULTI-STEP PROCESSES FOR SURFACE TREATMENT OF METALLIC MATERIAL INVOLVING AT LEAST ONE PROCESS PROVIDED FOR IN CLASS C23 AND AT LEAST ONE PROCESS COVERED BY SUBCLASS C21D OR C22F OR CLASS C25
    • C23F1/00—Etching metallic material by chemical means
    • C23F1/46—Regeneration of etching compositions
    • C—CHEMISTRY; METALLURGY
    • C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
    • C25C—PROCESSES FOR THE ELECTROLYTIC PRODUCTION, RECOVERY OR REFINING OF METALS; APPARATUS THEREFOR
    • C25C1/00—Electrolytic production, recovery or refining of metals by electrolysis of solutions
    • C25C1/12—Electrolytic production, recovery or refining of metals by electrolysis of solutions of copper
    • C—CHEMISTRY; METALLURGY
    • C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
    • C25C—PROCESSES FOR THE ELECTROLYTIC PRODUCTION, RECOVERY OR REFINING OF METALS; APPARATUS THEREFOR
    • C25C7/00—Constructional parts, or assemblies thereof, of cells; Servicing or operating of cells

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Engineering & Computer Science (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Electrochemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Mechanical Engineering (AREA)
  • ing And Chemical Polishing (AREA)
  • Manufacturing Of Printed Circuit Boards (AREA)
  • Water Treatment By Electricity Or Magnetism (AREA)
  • Electrolytic Production Of Metals (AREA)

Abstract

1390268 Recovery of copper from etching solutions SHIPLEY CO Inc 11 Oct 1972 [12 Oct 1971] 46794/72 Heading C7B Copper metal is recovered from an aqueous etching solution containing cupric ions by electrolyzing the solution while cooling the cathode and avoiding solution agitation to decrease the etching potential of the solution. In the apparatus shown the solution is contained in a double-walled tomb 1, e.g. of polyethylene, and is electrolysed between anodes 7 of graphite and stainless steel cathode 2. Cooling water is passed through the cathode from pipe 3 and may optionally be then passed through the jacket 5 of the container. The maximum temperature of the etchant solution is preferably 140‹F. while the temperature at cathode-solution interface does not exceed 90‹F. A loose, granular layer of copper forms on the cathode and is readily scraped off to be removed through outlet 16. After a part, preferably not over 80% of the copper has been removed from the solution, the compo- sition of the solution is adjusted e.g. by addition of ammonium chloride and monoethanolamine and returned to the etching process for re-use.
GB4679472A 1971-10-12 1972-10-11 Electrolytic regeneration of spent etchant Expired GB1390268A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US18818971A 1971-10-12 1971-10-12

Publications (1)

Publication Number Publication Date
GB1390268A true GB1390268A (en) 1975-04-09

Family

ID=22692104

Family Applications (1)

Application Number Title Priority Date Filing Date
GB4679472A Expired GB1390268A (en) 1971-10-12 1972-10-11 Electrolytic regeneration of spent etchant

Country Status (9)

Country Link
US (1) US3783113A (en)
JP (1) JPS4872026A (en)
BE (1) BE789944A (en)
CA (1) CA1021713A (en)
DE (1) DE2250072A1 (en)
FR (1) FR2156249B1 (en)
GB (1) GB1390268A (en)
IT (1) IT968493B (en)
NL (1) NL7213827A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2131454A (en) * 1982-12-07 1984-06-20 Jury Ivanovich Naumov Process for regeneration of iron-copper chloride etching solution
CN116043280A (en) * 2023-02-17 2023-05-02 三河市日盛机械制造有限公司 Lead-base alloy electrolytic furnace

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2133806B (en) * 1983-01-20 1986-06-04 Electricity Council Regenerating solutions for etching copper
DE3303594A1 (en) * 1983-02-03 1984-08-09 Robert Bosch Gmbh, 7000 Stuttgart METHOD AND DEVICE FOR REGENERATING A copper-containing etching solution
DE3324450A1 (en) * 1983-07-07 1985-01-17 ELO-CHEM Ätztechnik GmbH, 7758 Meersburg AMMONIUM SULFATE-CONTAINING ETCH SOLUTION AND METHOD FOR REGENERATING THE ETCH SOLUTION
DE3340342A1 (en) * 1983-11-08 1985-05-15 ELO-CHEM Ätztechnik GmbH, 7758 Meersburg METHOD AND PLANT FOR REGENERATING AN AMMONIA ACID SOLUTION
US5085730A (en) * 1990-11-16 1992-02-04 Macdermid, Incorporated Process for regenerating ammoniacal chloride etchants
US5431776A (en) * 1993-09-08 1995-07-11 Phibro-Tech, Inc. Copper etchant solution additives
DE4339320A1 (en) * 1993-11-18 1995-05-24 Elochem Aetztechnik Gmbh Process for accelerated etching and deposition of metals in ammoniacal etching systems
GB9907848D0 (en) * 1999-04-07 1999-06-02 Shipley Co Llc Processes and apparatus for removal of copper from fluids
US7404904B2 (en) * 2001-10-02 2008-07-29 Melvin Stanley Method and apparatus to clean particulate matter from a toxic fluid
GB0318017D0 (en) * 2003-08-01 2003-09-03 Shipley Co Llc Methods for recovering metals
CN103588262A (en) * 2012-08-17 2014-02-19 成都虹华环保科技有限公司 Low copper content wastewater comprehensive treatment apparatus
CN107311309B (en) * 2017-08-02 2023-06-06 哈尔滨工业大学 Upflow internal circulation microaerobic bioreactor and its aeration method and application method for enhancing mass transfer

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB506590A (en) * 1937-11-29 1939-05-30 George William Johnson Improvements in the electrolytic manufacture and production of zinc dust
FR1213119A (en) * 1957-10-28 1960-03-29 Western Electric Co Bath to corrode copper and regeneration of this bath
GB1057625A (en) * 1963-11-25 1967-02-01 Ici Ltd Electro deposition process

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2131454A (en) * 1982-12-07 1984-06-20 Jury Ivanovich Naumov Process for regeneration of iron-copper chloride etching solution
CN116043280A (en) * 2023-02-17 2023-05-02 三河市日盛机械制造有限公司 Lead-base alloy electrolytic furnace

Also Published As

Publication number Publication date
BE789944A (en) 1973-02-01
FR2156249B1 (en) 1975-03-14
NL7213827A (en) 1973-04-16
CA1021713A (en) 1977-11-29
DE2250072A1 (en) 1973-04-19
FR2156249A1 (en) 1973-05-25
IT968493B (en) 1974-03-20
JPS4872026A (en) 1973-09-28
US3783113A (en) 1974-01-01

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PLNP Patent lapsed through nonpayment of renewal fees