HK1001095A1 - Process for the accelerated etching and refining of metals in ammoniacal etching systems - Google Patents

Process for the accelerated etching and refining of metals in ammoniacal etching systems

Info

Publication number
HK1001095A1
HK1001095A1 HK97102708A HK97102708A HK1001095A1 HK 1001095 A1 HK1001095 A1 HK 1001095A1 HK 97102708 A HK97102708 A HK 97102708A HK 97102708 A HK97102708 A HK 97102708A HK 1001095 A1 HK1001095 A1 HK 1001095A1
Authority
HK
Hong Kong
Prior art keywords
etching
refining
metals
ammoniacal
accelerated
Prior art date
Application number
HK97102708A
Inventor
Andreas Linhard
Original Assignee
Elochem Aetztechnik Gmbh
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 Elochem Aetztechnik Gmbh filed Critical Elochem Aetztechnik Gmbh
Publication of HK1001095A1 publication Critical patent/HK1001095A1/en

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

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)
  • Electrolytic Production Of Metals (AREA)
  • Water Treatment By Electricity Or Magnetism (AREA)
  • ing And Chemical Polishing (AREA)
  • Manufacture And Refinement Of Metals (AREA)
HK97102708A 1993-11-18 1997-12-31 Process for the accelerated etching and refining of metals in ammoniacal etching systems HK1001095A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE4339320A DE4339320A1 (en) 1993-11-18 1993-11-18 Process for accelerated etching and deposition of metals in ammoniacal etching systems

Publications (1)

Publication Number Publication Date
HK1001095A1 true HK1001095A1 (en) 1998-05-22

Family

ID=6502857

Family Applications (1)

Application Number Title Priority Date Filing Date
HK97102708A HK1001095A1 (en) 1993-11-18 1997-12-31 Process for the accelerated etching and refining of metals in ammoniacal etching systems

Country Status (7)

Country Link
JP (1) JPH07197300A (en)
CN (1) CN1107902A (en)
DE (1) DE4339320A1 (en)
FR (1) FR2712607B1 (en)
GB (1) GB2283983B (en)
HK (1) HK1001095A1 (en)
IT (1) IT1276359B1 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110042425A (en) * 2019-04-23 2019-07-23 博罗县华盈科技有限公司 A kind of heavy process for copper of alkaline etching waste liquid for producing direct electrowinning

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1294804A (en) * 1970-07-24 1972-11-01 Shipley Co Etchant for cupreous metals
BE789944A (en) * 1971-10-12 1973-02-01 Shipley Co REGENERATION OF A USED COPPER ATTACK SOLUTION
DE2216269A1 (en) * 1972-04-05 1973-10-18 Hoellmueller Maschbau H METHOD OF ETCHING COPPER AND COPPER ALLOYS
DE3305319A1 (en) * 1983-02-16 1984-08-16 Siemens AG, 1000 Berlin und 8000 München Electrolytic full regeneration process for an ammoniacal etching solution
CA2029444A1 (en) * 1990-03-21 1991-09-22 Raymond A. Letize System and process for etching with and regenerating, alkaline ammoniacal etchant solution
AT395177B (en) * 1990-07-05 1992-10-12 Provera Gmbh RESOLUTION
DE4218843C2 (en) * 1991-11-09 1994-04-28 Hoellmueller Maschbau H Process for the regeneration of an ammoniacal etchant and device for carrying out this process
WO1993009267A1 (en) * 1991-11-09 1993-05-13 Hans Höllmüller Maschinenbau GmbH & Co. Process for regenerating an ammoniacal etching agent and device for implementing it

Also Published As

Publication number Publication date
FR2712607B1 (en) 1997-06-20
GB2283983B (en) 1997-07-02
GB2283983A (en) 1995-05-24
ITBO940512A1 (en) 1996-05-17
JPH07197300A (en) 1995-08-01
FR2712607A1 (en) 1995-05-24
IT1276359B1 (en) 1997-10-30
DE4339320A1 (en) 1995-05-24
CN1107902A (en) 1995-09-06
GB9422669D0 (en) 1995-01-04
ITBO940512A0 (en) 1994-11-17

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Legal Events

Date Code Title Description
PC Patent ceased (i.e. patent has lapsed due to the failure to pay the renewal fee)