FR1193521A - Improvements in the extraction of tungsten from products containing - Google Patents

Improvements in the extraction of tungsten from products containing

Info

Publication number
FR1193521A
FR1193521A FR1193521DA FR1193521A FR 1193521 A FR1193521 A FR 1193521A FR 1193521D A FR1193521D A FR 1193521DA FR 1193521 A FR1193521 A FR 1193521A
Authority
FR
France
Prior art keywords
tungsten
extraction
products containing
products
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
Other languages
French (fr)
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.)
EIDP Inc
Original Assignee
EI Du Pont de Nemours and Co
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 EI Du Pont de Nemours and Co filed Critical EI Du Pont de Nemours and Co
Application granted granted Critical
Publication of FR1193521A publication Critical patent/FR1193521A/en
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22B—PRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
    • C22B34/00—Obtaining refractory metals
    • C22B34/30—Obtaining chromium, molybdenum or tungsten
    • C22B34/36—Obtaining tungsten
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01G—COMPOUNDS CONTAINING METALS NOT COVERED BY SUBCLASSES C01D OR C01F
    • C01G41/00—Compounds of tungsten

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Materials Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Metallurgy (AREA)
  • Inorganic Chemistry (AREA)
FR1193521D 1957-03-25 1958-03-21 Improvements in the extraction of tungsten from products containing Expired FR1193521A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US1193521XA 1957-03-25 1957-03-25

Publications (1)

Publication Number Publication Date
FR1193521A true FR1193521A (en) 1959-11-03

Family

ID=22383930

Family Applications (1)

Application Number Title Priority Date Filing Date
FR1193521D Expired FR1193521A (en) 1957-03-25 1958-03-21 Improvements in the extraction of tungsten from products containing

Country Status (1)

Country Link
FR (1) FR1193521A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0889006A1 (en) * 1997-07-03 1999-01-07 Patent-Treuhand-Gesellschaft für elektrische Glühlampen mbH Process for the recuparation of doped tungsten

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0889006A1 (en) * 1997-07-03 1999-01-07 Patent-Treuhand-Gesellschaft für elektrische Glühlampen mbH Process for the recuparation of doped tungsten

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