GB1111164A - Shaft furnace for the burning of graphite - Google Patents

Shaft furnace for the burning of graphite

Info

Publication number
GB1111164A
GB1111164A GB14367/66A GB1436766A GB1111164A GB 1111164 A GB1111164 A GB 1111164A GB 14367/66 A GB14367/66 A GB 14367/66A GB 1436766 A GB1436766 A GB 1436766A GB 1111164 A GB1111164 A GB 1111164A
Authority
GB
United Kingdom
Prior art keywords
shaft
mass
pipe
controlled
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
GB14367/66A
Inventor
Pierre Decate
Pierre Faugeras
Rene Huneau
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.)
Commissariat a lEnergie Atomique et aux Energies Alternatives CEA
Original Assignee
Commissariat a lEnergie Atomique CEA
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 Commissariat a lEnergie Atomique CEA filed Critical Commissariat a lEnergie Atomique CEA
Publication of GB1111164A publication Critical patent/GB1111164A/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G21—NUCLEAR PHYSICS; NUCLEAR ENGINEERING
    • G21F—PROTECTION AGAINST X-RADIATION, GAMMA RADIATION, CORPUSCULAR RADIATION OR PARTICLE BOMBARDMENT; TREATING RADIOACTIVELY CONTAMINATED MATERIAL; DECONTAMINATION ARRANGEMENTS THEREFOR
    • G21F9/00—Treating radioactively contaminated material; Decontamination arrangements therefor
    • G21F9/28—Treating solids
    • G21F9/30—Processing
    • G21F9/32—Processing by incineration
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
    • C01B32/00—Carbon; Compounds thereof
    • C01B32/20—Graphite
    • C01B32/21—After-treatment
    • 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
    • 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
    • C22B60/0208—Obtaining thorium, uranium, or other actinides obtaining uranium preliminary treatment of ores or scrap
    • 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
    • C22B60/0217—Obtaining thorium, uranium, or other actinides obtaining uranium by wet processes
    • C22B60/0221—Obtaining thorium, uranium, or other actinides obtaining uranium by wet processes by leaching
    • C22B60/0226—Obtaining thorium, uranium, or other actinides obtaining uranium by wet processes by leaching using acidic solutions or liquors
    • C22B60/0239—Obtaining thorium, uranium, or other actinides obtaining uranium by wet processes by leaching using acidic solutions or liquors nitric acid containing ion as active agent
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F27—FURNACES; KILNS; OVENS; RETORTS
    • F27B—FURNACES, KILNS, OVENS, OR RETORTS IN GENERAL; OPEN SINTERING OR LIKE APPARATUS
    • F27B1/00—Shaft or like vertical or substantially vertical furnaces
    • F27B1/005—Shaft or like vertical or substantially vertical furnaces wherein no smelting of the charge occurs, e.g. calcining or sintering furnaces
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F27—FURNACES; KILNS; OVENS; RETORTS
    • F27B—FURNACES, KILNS, OVENS, OR RETORTS IN GENERAL; OPEN SINTERING OR LIKE APPARATUS
    • F27B1/00—Shaft or like vertical or substantially vertical furnaces
    • F27B1/08—Shaft or like vertical or substantially vertical furnaces heated otherwise than by solid fuel mixed with charge

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Mechanical Engineering (AREA)
  • Geology (AREA)
  • Environmental & Geological Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Inorganic Chemistry (AREA)
  • Manufacturing & Machinery (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Physics & Mathematics (AREA)
  • High Energy & Nuclear Physics (AREA)
  • Muffle Furnaces And Rotary Kilns (AREA)
  • Carbon And Carbon Compounds (AREA)
  • Inorganic Compounds Of Heavy Metals (AREA)

Abstract

1,111,164. Shaft furnaces. COMMISSARIAT A L'ENERGIE ATOMIQUE. 31 March, 1966 [6 April, 1965], No. 14367/66. Heading F4B. A shaft furnace for recovering plutonium and uranium from graphite crucibles comprises a shaft 1 supplied with heated air from a heater 7 through a pipe 6 and with crushed crucible material from a hopper 4 controlled by a flap 5, and a chamber. 2 containing a mass 3 of inert material, e.g. an alumina refractory, into which the shaft 1 dips. Chamber 2 is closed by a plate 15 carrying an offtake 18 and welded to shaft 1, said plate having disposed below it an annular deflector 19. The heater can be bypassed by a pipe 9 and pipe 10 may supply a diluent gas, e.g. nitrogen. The layer of crushed graphite on top of mass 3 is ignited, either through a small layer of wood charcoal 20 or by an electric resistance, combustion being controlled to a maximum of 750‹ C. Plutonium or uranium oxide particles collecting in the mass 3 are eventually dissolved by hot nitric acid to which hydrofluoric acid or aluminium nitrate may be added. The temperature may be controlled by thermocouples in the top layers of mass 3 and controlling the supply of hot or cold air or the nitrogen.
GB14367/66A 1965-04-06 1966-03-31 Shaft furnace for the burning of graphite Expired GB1111164A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR12129A FR1439162A (en) 1965-04-06 1965-04-06 Method and device for recovering metals incorporated in a fuel

Publications (1)

Publication Number Publication Date
GB1111164A true GB1111164A (en) 1968-04-24

Family

ID=8575754

Family Applications (1)

Application Number Title Priority Date Filing Date
GB14367/66A Expired GB1111164A (en) 1965-04-06 1966-03-31 Shaft furnace for the burning of graphite

Country Status (7)

Country Link
BE (1) BE678319A (en)
CH (1) CH454294A (en)
DE (1) DE1508464B1 (en)
ES (1) ES325128A1 (en)
FR (1) FR1439162A (en)
GB (1) GB1111164A (en)
LU (1) LU50824A1 (en)

Also Published As

Publication number Publication date
LU50824A1 (en) 1966-06-06
CH454294A (en) 1968-04-15
FR1439162A (en) 1966-05-20
BE678319A (en) 1966-09-01
ES325128A1 (en) 1967-06-16
DE1508464B1 (en) 1970-04-16

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