BE470891A - - Google Patents

Info

Publication number
BE470891A
BE470891A BE470891DA BE470891A BE 470891 A BE470891 A BE 470891A BE 470891D A BE470891D A BE 470891DA BE 470891 A BE470891 A BE 470891A
Authority
BE
Belgium
Prior art keywords
niobium
tantalum
hydrogen
reduction
chlorination
Prior art date
Application number
Other languages
English (en)
French (fr)
Publication of BE470891A publication Critical patent/BE470891A/fr

Links

Classifications

    • CCHEMISTRY; METALLURGY
    • C22METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22BPRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
    • C22B34/00Obtaining refractory metals
    • C22B34/20Obtaining niobium, tantalum or vanadium
    • C22B34/24Obtaining niobium or tantalum

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Manufacturing & Machinery (AREA)
  • Materials Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Inorganic Compounds Of Heavy Metals (AREA)
BE470891D BE470891A (enrdf_load_stackoverflow)

Publications (1)

Publication Number Publication Date
BE470891A true BE470891A (enrdf_load_stackoverflow)

Family

ID=120924

Family Applications (1)

Application Number Title Priority Date Filing Date
BE470891D BE470891A (enrdf_load_stackoverflow)

Country Status (1)

Country Link
BE (1) BE470891A (enrdf_load_stackoverflow)

Similar Documents

Publication Publication Date Title
US4070252A (en) Purification of crude titanium tetrachloride
JP2011042570A (ja) 弗化水素を精製する方法
EP0340069A1 (fr) Procédé de préparation du chlorure ferrique à partir d'acide chlorhydrique dilué
BE470891A (enrdf_load_stackoverflow)
JPH03502116A (ja) Ta及び/又はNbを含有する材料からTa及び/又はNbの不純物不含化合物を得るための改良方法
EP0015802B1 (fr) Procédé de purification du mercaptobenzothiazole
CN112390285A (zh) 一种钒钛系废催化剂的回收方法
CA1204110A (fr) Procede de decomposition d'un complexe d'acide orthobenzoyl-benzoique, de fluorure d'hydrogene et de trifluorure de bore
US986180A (en) Process of extracting vanadium from its ores.
US4400325A (en) Process for the preparation of pure, saturated perfluoroalkane-1-carboxylic acids from 1-iodoperfluoroalkanes
US3384448A (en) Process for recovering vanadium values from crude residua
US5171448A (en) Process for purifying paraffin sulphonic acids
US4009186A (en) Process for the preparation of maleic anhydride from maleic acid in the presence of sulfolane
US1779856A (en) Recovery of vanadium from ores or compounds
US2976114A (en) Process for separating niobium and tantalum from each other
EP0000464A1 (fr) Procédé de purification du mercaptobenzothiazole
CN109553588B (zh) 一种2,6-二氯苯并恶唑的合成方法
US3341595A (en) Preparation of 3-chloro-4-toluidine
KR950004889B1 (ko) 1,3,6,8-데트라브로모피렌의 제조방법
US569334A (en) Process of extracting gold
US642767A (en) Process of separating precious metals from their mixtures with zinc.
NO119958B (enrdf_load_stackoverflow)
BE571009A (enrdf_load_stackoverflow)
GB833569A (en) The manufacture of phosphorus oxychloride addition products and their use for separating niobium and tantalum from mixtures containing them
BE454037A (enrdf_load_stackoverflow)