GB173237A - Process for the preparation of coherent masses of the rare metals, and alloys and oxides thereof - Google Patents

Process for the preparation of coherent masses of the rare metals, and alloys and oxides thereof

Info

Publication number
GB173237A
GB173237A GB34407/21A GB3440721A GB173237A GB 173237 A GB173237 A GB 173237A GB 34407/21 A GB34407/21 A GB 34407/21A GB 3440721 A GB3440721 A GB 3440721A GB 173237 A GB173237 A GB 173237A
Authority
GB
United Kingdom
Prior art keywords
oxides
refractory
metal
alloys
metals
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
GB34407/21A
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.)
Westinghouse Lamp Co
Original Assignee
Westinghouse Lamp 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 Westinghouse Lamp Co filed Critical Westinghouse Lamp Co
Publication of GB173237A publication Critical patent/GB173237A/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
    • C22B60/00—Obtaining metals of atomic number 87 or higher, i.e. radioactive metals
    • C22B60/02—Obtaining thorium, uranium, or other actinides
    • C22B60/0291—Obtaining thorium, uranium, or other actinides obtaining thorium
    • 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
    • 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
    • C22B35/00—Obtaining beryllium
    • 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
    • C22B60/00—Obtaining metals of atomic number 87 or higher, i.e. radioactive metals
    • C22B60/02—Obtaining thorium, uranium, or other actinides
    • C22B60/0204—Obtaining thorium, uranium, or other actinides obtaining uranium
    • C22B60/0213—Obtaining thorium, uranium, or other actinides obtaining uranium by dry processes

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Organic Chemistry (AREA)
  • Materials Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Metallurgy (AREA)
  • Manufacturing & Machinery (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Environmental & Geological Engineering (AREA)
  • Geology (AREA)
  • Manufacture And Refinement Of Metals (AREA)
  • Powder Metallurgy (AREA)

Abstract

Coherent masses are formed from powders of refractory metals such as zirconium, thorium, titanium, uranium, vanadium, tantalum, tungsten, and beryllium, or from their mixtures or oxides, by slowly heating one or more of the metals or their oxides or compounds in a high vacuum to expel volatilizable constituents and occluded gases and then heating them strongly to cause sintering. The powder, loose or in compressed form, may be heated in a crucible or on a plate of molybdenum or tungsten closely surrounded by a coil through which is passed first direct or low-frequency alternating current, and afterwards high-frequency alternating current. In some cases the metal may be formed in a porous state suitable for use as electrodes in electrolytic cells. Alloys may be formed by starting with mixtures of a refractory metal with another refractory or other metal; and refractory materials such as zirconia suitable for making crucibles and other articles may be obtained by treating oxides.
GB34407/21A 1920-12-21 1921-12-21 Process for the preparation of coherent masses of the rare metals, and alloys and oxides thereof Expired GB173237A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US173237XA 1920-12-21 1920-12-21

Publications (1)

Publication Number Publication Date
GB173237A true GB173237A (en) 1923-03-21

Family

ID=21781956

Family Applications (1)

Application Number Title Priority Date Filing Date
GB34407/21A Expired GB173237A (en) 1920-12-21 1921-12-21 Process for the preparation of coherent masses of the rare metals, and alloys and oxides thereof

Country Status (1)

Country Link
GB (1) GB173237A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2778725A (en) * 1952-07-18 1957-01-22 Union Carbide & Carbon Corp Method for making powdered vanadium metal
US2818605A (en) * 1949-06-23 1958-01-07 Herbert I Miller Method of making a refractory material
US5082540A (en) * 1990-05-07 1992-01-21 The Secretary Of State For Defence In Her Britannic Majesty's Government Of The United Kingdom Of Great Britain And Northern Ireland Fluoride ion sensitive materials

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2818605A (en) * 1949-06-23 1958-01-07 Herbert I Miller Method of making a refractory material
US2778725A (en) * 1952-07-18 1957-01-22 Union Carbide & Carbon Corp Method for making powdered vanadium metal
US5082540A (en) * 1990-05-07 1992-01-21 The Secretary Of State For Defence In Her Britannic Majesty's Government Of The United Kingdom Of Great Britain And Northern Ireland Fluoride ion sensitive materials

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