DE3169917D1 - Method of selectively dissolving molybdenum in the presence of tungsten - Google Patents

Method of selectively dissolving molybdenum in the presence of tungsten

Info

Publication number
DE3169917D1
DE3169917D1 DE8181110588T DE3169917T DE3169917D1 DE 3169917 D1 DE3169917 D1 DE 3169917D1 DE 8181110588 T DE8181110588 T DE 8181110588T DE 3169917 T DE3169917 T DE 3169917T DE 3169917 D1 DE3169917 D1 DE 3169917D1
Authority
DE
Germany
Prior art keywords
tungsten
molybdenum
dissolving
selectively
selectively dissolving
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
DE8181110588T
Other languages
German (de)
English (en)
Inventor
Karoly Dr Dipl Chem Vadasdi
Laszlo Dr Dipl Chem Bartha
Andras Dr Dipl Chem Kiss
Tivadar Dr Dipl Chem I Millner
Endre Tekula
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.)
Magyar Tudomanyos Akademia Muszaki Fizikai Kutato Intezete
Original Assignee
Magyar Tudomanyos Akademia Muszaki Fizikai Kutato Intezete
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 Magyar Tudomanyos Akademia Muszaki Fizikai Kutato Intezete filed Critical Magyar Tudomanyos Akademia Muszaki Fizikai Kutato Intezete
Application granted granted Critical
Publication of DE3169917D1 publication Critical patent/DE3169917D1/de
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
    • C23F1/10—Etching compositions
    • C23F1/14—Aqueous compositions
    • C23F1/16—Acidic compositions
    • C23F1/26—Acidic compositions for etching refractory 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)
  • Catalysts (AREA)
  • Manufacture And Refinement Of Metals (AREA)
  • Inorganic Compounds Of Heavy Metals (AREA)
DE8181110588T 1981-12-18 1981-12-18 Method of selectively dissolving molybdenum in the presence of tungsten Expired DE3169917D1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP81110588A EP0082210B1 (fr) 1981-12-18 1981-12-18 Procédé pour la dissolution sélective du molybdène en présence de tungstène

Publications (1)

Publication Number Publication Date
DE3169917D1 true DE3169917D1 (en) 1985-05-15

Family

ID=8188075

Family Applications (1)

Application Number Title Priority Date Filing Date
DE8181110588T Expired DE3169917D1 (en) 1981-12-18 1981-12-18 Method of selectively dissolving molybdenum in the presence of tungsten

Country Status (3)

Country Link
EP (1) EP0082210B1 (fr)
AT (1) ATE12661T1 (fr)
DE (1) DE3169917D1 (fr)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4548791A (en) * 1983-09-30 1985-10-22 American Chemical & Refining Company, Inc. Thallium-containing composition for stripping palladium
JPS6096779A (ja) * 1983-10-06 1985-05-30 オリン　コーポレーシヨン 銅基材料の洗浄方法と洗浄液の再生方法

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5045742A (fr) * 1973-08-27 1975-04-24
DE2359558C2 (de) * 1973-11-29 1975-11-13 Hitachi, Ltd., Tokio Verfahren zum Verhindern der Bildung von Stickstoffmonoxid bei der Ausätzung eines Molybdänkernes aus einer Wolframdrahtwendel
US3945865A (en) * 1974-07-22 1976-03-23 Dart Environment And Services Company Metal dissolution process
US4174253A (en) * 1977-11-08 1979-11-13 Dart Industries Inc. Dissolution of metals utilizing a H2 O2 -H2 SO4 solution catalyzed with hydroxy substituted cycloparaffins
DE2933430A1 (de) * 1979-08-17 1981-03-26 Patent-Treuhand-Gesellschaft für elektrische Glühlampen mbH, 81543 München Verfahren zur rueckgewinnung von molybdaen und mischsaeure aus verbrauchten mischsaeurebeizloesungen

Also Published As

Publication number Publication date
EP0082210A1 (fr) 1983-06-29
ATE12661T1 (de) 1985-04-15
EP0082210B1 (fr) 1985-04-10

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Legal Events

Date Code Title Description
8339 Ceased/non-payment of the annual fee