FR590774A - Process for obtaining tungsten and derivatives - Google Patents

Process for obtaining tungsten and derivatives

Info

Publication number
FR590774A
FR590774A FR590774DA FR590774A FR 590774 A FR590774 A FR 590774A FR 590774D A FR590774D A FR 590774DA FR 590774 A FR590774 A FR 590774A
Authority
FR
France
Prior art keywords
derivatives
obtaining tungsten
tungsten
obtaining
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.)
Mitsubishi Heavy Industries Ltd
Original Assignee
Mitsubishi Heavy Industries Ltd
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 Mitsubishi Heavy Industries Ltd filed Critical Mitsubishi Heavy Industries Ltd
Application granted granted Critical
Publication of FR590774A publication Critical patent/FR590774A/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

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Manufacturing & Machinery (AREA)
  • Materials Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
FR590774D 1924-11-26 1924-11-26 Process for obtaining tungsten and derivatives Expired FR590774A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR590774T 1924-11-26

Publications (1)

Publication Number Publication Date
FR590774A true FR590774A (en) 1925-06-23

Family

ID=8963647

Family Applications (1)

Application Number Title Priority Date Filing Date
FR590774D Expired FR590774A (en) 1924-11-26 1924-11-26 Process for obtaining tungsten and derivatives

Country Status (1)

Country Link
FR (1) FR590774A (en)

Similar Documents

Publication Publication Date Title
FR590774A (en) Process for obtaining tungsten and derivatives
FR560246A (en) Process for obtaining soap
FR631242A (en) Process for the production of monoxy-omega-amynoacetophenone derivatives
FR633319A (en) Process for obtaining diazotypes
FR606804A (en) Process for the manufacture of arylidoanthraquinone derivatives
FR640236A (en) Process for obtaining monobenzoylated diaminoanthraquinones
FR620365A (en) Process for the manufacture of anthraquinone derivatives
FR594712A (en) Process for obtaining ammonia
FR726257A (en) Process for the production of urethane derivatives
FR612381A (en) Process for the production of n-dihydro 1, 2, 1 ', 2' anthraquinoneazine and its derivatives
FR601329A (en) Process for the production of 1.1'-dianthraquinonyl-2, 2'-dialdehyde and its derivatives
FR618064A (en) Process for obtaining amidoguanidines and their alkyl derivatives
FR808307A (en) Process for obtaining thiazolidine derivatives
FR566041A (en) Process for the preparation of ethane derivatives
FR634884A (en) Process for obtaining phosphotungstomolybdenum compounds
FR644778A (en) Process for obtaining alkaline cyanides
FR641054A (en) Process for obtaining metal parts by extrusion
FR618063A (en) Process for obtaining diguanidines and their alkyl and oxyalkyl derivatives
FR606173A (en) Process for obtaining light hydrocarbons
FR677549A (en) Process for the preparation of valuable derivatives of di-o-benzolene-1,10,6,5-pyrene
FR576965A (en) Metal composition and process for obtaining it
FR604099A (en) Process for preparing 1.4.5.8.-Naphthalenetetracarboxylic acid and its derivatives
FR583248A (en) Process for the preparation of synthetic ammonia
FR613149A (en) Process for the production of acridine derivatives and process for the preparation of solutions
FR681877A (en) Process for obtaining derivatives of carbon-alkylated aromatic combinations