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GB1132271A - Method of and apparatus for melting uranium dioxide or plutonium dioxide - Google Patents

Method of and apparatus for melting uranium dioxide or plutonium dioxide

Info

Publication number
GB1132271A
GB1132271A GB423666A GB423666A GB1132271A GB 1132271 A GB1132271 A GB 1132271A GB 423666 A GB423666 A GB 423666A GB 423666 A GB423666 A GB 423666A GB 1132271 A GB1132271 A GB 1132271A
Authority
GB
United Kingdom
Prior art keywords
powder
path
heating
crucible
graphite
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
GB423666A
Inventor
Lothar Schikarski
Hans-Jurgen Teiwes
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.)
European Atomic Energy Community Euratom
Original Assignee
European Atomic Energy Community Euratom
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 European Atomic Energy Community Euratom filed Critical European Atomic Energy Community Euratom
Publication of GB1132271A publication Critical patent/GB1132271A/en
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B33/00—Clay-wares
    • C04B33/32—Burning methods
    • C04B33/323—Burning methods involving melting, fusion or softening
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J6/00—Heat treatments such as Calcining; Fusing ; Pyrolysis
    • B01J6/005—Fusing
    • B01J6/007—Fusing in crucibles
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01G—COMPOUNDS CONTAINING METALS NOT COVERED BY SUBCLASSES C01D OR C01F
    • C01G43/00—Compounds of uranium
    • C01G43/01—Oxides; Hydroxides
    • C01G43/025—Uranium dioxide
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01G—COMPOUNDS CONTAINING METALS NOT COVERED BY SUBCLASSES C01D OR C01F
    • C01G56/00—Compounds of transuranic elements
    • C01G56/004—Compounds of plutonium
    • C01G56/005—Oxides; Hydroxides
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B33/00—Clay-wares
    • C04B33/32—Burning methods
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B35/00—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
    • C04B35/51—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on compounds of actinides
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F27—FURNACES; KILNS; OVENS; RETORTS
    • F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
    • F27D11/00—Arrangement of elements for electric heating in or on furnaces
    • F27D11/02—Ohmic resistance heating
    • F27D11/04—Ohmic resistance heating with direct passage of current through the material being heated
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B6/00—Heating by electric, magnetic or electromagnetic fields
    • H05B6/02—Induction heating
    • H05B6/22—Furnaces without an endless core
    • H05B6/24—Crucible furnaces

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Organic Chemistry (AREA)
  • Ceramic Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Materials Engineering (AREA)
  • Structural Engineering (AREA)
  • Dispersion Chemistry (AREA)
  • Plasma & Fusion (AREA)
  • Inorganic Chemistry (AREA)
  • Electromagnetism (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Thermal Sciences (AREA)
  • Manufacturing & Machinery (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geology (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Inorganic Compounds Of Heavy Metals (AREA)

Abstract

1,132,271. Internal resistance heating. EUROPEAN ATOMIC ENERGY COMMUNITY (EURATOM). 31 Jan., 1966 [8 Feb., 1965], No. 4236/66. Heading H5H. In a method of melting uranium and plutonium dioxide powders in a crucible a current path is provided through the powder of greater conductivity than that of the powder and heating current is first passed through the path to heat the powder surrounding the path and then heating current is passed through the heated powder. The melting apparatus comprises a water-cooled Cu crucible 2 having a graphite lining 3 and closed at the top by a vacuumtight housing 1. A graphite electrode 5 is mounted on a water-cooled Cu tube 4 slidable in the housing. A column 6 forming the path is placed between electrode 5 and the bottom of the crucible which is filled with powder 7 to be melted. The column may comprise compressed powder bodies, granulated residue of preceding melts or a graphite or tungsten rod, the rod being withdrawn after initial heating. A.C. or D.C. may be used and heating may be in a hydrogen atmosphere to produce a stoichiometric melt.
GB423666A 1965-02-08 1966-01-31 Method of and apparatus for melting uranium dioxide or plutonium dioxide Expired GB1132271A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEE0028656 1965-02-08

Publications (1)

Publication Number Publication Date
GB1132271A true GB1132271A (en) 1968-10-30

Family

ID=7073459

Family Applications (1)

Application Number Title Priority Date Filing Date
GB423666A Expired GB1132271A (en) 1965-02-08 1966-01-31 Method of and apparatus for melting uranium dioxide or plutonium dioxide

Country Status (5)

Country Link
BE (1) BE676120A (en)
DE (1) DE1252111B (en)
GB (1) GB1132271A (en)
LU (1) LU50403A1 (en)
NL (1) NL6601532A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3048236A1 (en) * 1980-12-20 1982-07-15 Vacuumschmelze Gmbh, 6450 Hanau Smelting oven with inductive heating, for low conductivity materials - e.g. silicon, has insulating crucible and central conductive rod
CN112830519A (en) * 2020-12-31 2021-05-25 中核北方核燃料元件有限公司 Uranium oxide smelting method

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3048236A1 (en) * 1980-12-20 1982-07-15 Vacuumschmelze Gmbh, 6450 Hanau Smelting oven with inductive heating, for low conductivity materials - e.g. silicon, has insulating crucible and central conductive rod
CN112830519A (en) * 2020-12-31 2021-05-25 中核北方核燃料元件有限公司 Uranium oxide smelting method

Also Published As

Publication number Publication date
NL6601532A (en) 1966-08-09
LU50403A1 (en) 1967-08-07
DE1252111B (en) 1967-10-12
BE676120A (en) 1966-08-08

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