GB1317637A - Method for fusing carbides - Google Patents
Method for fusing carbidesInfo
- Publication number
- GB1317637A GB1317637A GB3857670A GB3857670A GB1317637A GB 1317637 A GB1317637 A GB 1317637A GB 3857670 A GB3857670 A GB 3857670A GB 3857670 A GB3857670 A GB 3857670A GB 1317637 A GB1317637 A GB 1317637A
- Authority
- GB
- United Kingdom
- Prior art keywords
- tube
- carbides
- charge
- electrodes
- upper electrode
- 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
Links
- 150000001247 metal acetylides Chemical class 0.000 title abstract 3
- PNEYBMLMFCGWSK-UHFFFAOYSA-N Alumina Chemical group [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 abstract 3
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 abstract 3
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 abstract 3
- -1 H5H Uranium carbides Chemical class 0.000 abstract 3
- 229910052802 copper Inorganic materials 0.000 abstract 3
- 239000010949 copper Substances 0.000 abstract 3
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 abstract 2
- 229910052778 Plutonium Inorganic materials 0.000 abstract 2
- 229910052770 Uranium Inorganic materials 0.000 abstract 2
- 230000015572 biosynthetic process Effects 0.000 abstract 2
- 229910002804 graphite Inorganic materials 0.000 abstract 2
- 239000010439 graphite Substances 0.000 abstract 2
- 238000010438 heat treatment Methods 0.000 abstract 2
- 239000000463 material Substances 0.000 abstract 2
- 230000008018 melting Effects 0.000 abstract 2
- 238000002844 melting Methods 0.000 abstract 2
- 239000000203 mixture Substances 0.000 abstract 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract 2
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 abstract 1
- 229910002092 carbon dioxide Inorganic materials 0.000 abstract 1
- 229910002091 carbon monoxide Inorganic materials 0.000 abstract 1
- 230000004927 fusion Effects 0.000 abstract 1
- 239000011521 glass Substances 0.000 abstract 1
- 230000005484 gravity Effects 0.000 abstract 1
- 239000011261 inert gas Substances 0.000 abstract 1
- 239000000155 melt Substances 0.000 abstract 1
- 229910052757 nitrogen Inorganic materials 0.000 abstract 1
- OOAWCECZEHPMBX-UHFFFAOYSA-N oxygen(2-);uranium(4+) Chemical compound [O-2].[O-2].[U+4] OOAWCECZEHPMBX-UHFFFAOYSA-N 0.000 abstract 1
- UTDLAEPMVCFGRJ-UHFFFAOYSA-N plutonium dihydrate Chemical compound O.O.[Pu] UTDLAEPMVCFGRJ-UHFFFAOYSA-N 0.000 abstract 1
- FLDALJIYKQCYHH-UHFFFAOYSA-N plutonium(IV) oxide Inorganic materials [O-2].[O-2].[Pu+4] FLDALJIYKQCYHH-UHFFFAOYSA-N 0.000 abstract 1
- 239000010453 quartz Substances 0.000 abstract 1
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N silicon dioxide Inorganic materials O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 abstract 1
- FCTBKIHDJGHPPO-UHFFFAOYSA-N uranium dioxide Inorganic materials O=[U]=O FCTBKIHDJGHPPO-UHFFFAOYSA-N 0.000 abstract 1
- JFALSRSLKYAFGM-UHFFFAOYSA-N uranium(0) Chemical compound [U] JFALSRSLKYAFGM-UHFFFAOYSA-N 0.000 abstract 1
Classifications
-
- 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
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
- D06M23/00—Treatment of fibres, threads, yarns, fabrics or fibrous goods made from such materials, characterised by the process
- D06M23/16—Processes for the non-uniform application of treating agents, e.g. one-sided treatment; Differential treatment
- D06M23/18—Processes for the non-uniform application of treating agents, e.g. one-sided treatment; Differential treatment for the chemical treatment of borders of fabrics or knittings; for the thermal or chemical fixation of cuttings, seams or fibre ends
-
- G—PHYSICS
- G21—NUCLEAR PHYSICS; NUCLEAR ENGINEERING
- G21C—NUCLEAR REACTORS
- G21C3/00—Reactor fuel elements and their assemblies; Selection of substances for use as reactor fuel elements
- G21C3/42—Selection of substances for use as reactor fuel
- G21C3/58—Solid reactor fuel Pellets made of fissile material
- G21C3/62—Ceramic fuel
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E30/00—Energy generation of nuclear origin
- Y02E30/30—Nuclear fission reactors
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Textile Engineering (AREA)
- General Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Ceramic Engineering (AREA)
- Mechanical Engineering (AREA)
- Plasma & Fusion (AREA)
- High Energy & Nuclear Physics (AREA)
- Electrolytic Production Of Non-Metals, Compounds, Apparatuses Therefor (AREA)
- Inorganic Compounds Of Heavy Metals (AREA)
- Physical Or Chemical Processes And Apparatus (AREA)
Abstract
1317637 Internal resistance heating NUKEM NUKLEAR-CHEMIE UND-METALLURGIE G.m.b.H. 11 Aug 1970 [16 Aug 1969] 38576/70 Heading H5H Uranium carbides, plutonium carbides or mixtures thereof are fused by passing an electric current through a powdered charge of the material, the charge 8 being located in a cylindrical tube 4 and supplied with current through electrodes 3, 5 which seal the tube ends, at least one of the electrodes 3, 5 being displaceable in the tube 4 to maintain electric contact with the charge 8 as its volumes reduces during melting. As shown the electrodes 3, 5 are made of graphite and the upper one 3 is vertically movable under gravity during melting. The tube 4 which is quart glass is surrounded by ballast 7 composed of the same material as the charge. A water cooled gas-tight copper crucible 6 has feed and discharge pipes 9, 10 for supplying inert gas or evacuating it. In an alternative embodiment (Fig. 3, not shown), for producing uranium and plutonium carbides from a mixture of uranium dioxide, carbon, and plutonium dioxide the upper electrode is tapered or of reduced section at its lower end so that during the formation of the carbides a gap is left between the edge of the upper electrode and the tube 4 to permit carbon monoxide to escape. On formation of the carbides the upper part of the descending upper electrode makes a tight fit with the tube 4 and subsequent heating with increased current fuses the charge. The tube 4 in this case is aluminium oxide. In this embodiment the ballast is omitted and a graphite crucible is situated inside the copper crucible. In Fig. 2, (not shown), both electrodes are movable and the quartz tube 4 is secured inside a water cooled copper block. After fusion, the lower electrode is removed and the upper electrode forces the melt into a waiting container. This apparatus may be installed and operated in a glove box containing O 2 , H 2 O and nitrogen under reduced pressure.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19691941828 DE1941828A1 (en) | 1969-08-16 | 1969-08-16 | Device for evaporation-free melting of uranium carbide or plutonium carbide |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1317637A true GB1317637A (en) | 1973-05-23 |
Family
ID=5743042
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB3857670A Expired GB1317637A (en) | 1969-08-16 | 1970-08-11 | Method for fusing carbides |
Country Status (4)
| Country | Link |
|---|---|
| BE (1) | BE754787A (en) |
| DE (1) | DE1941828A1 (en) |
| FR (1) | FR2030837A5 (en) |
| GB (1) | GB1317637A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0104749A1 (en) * | 1982-08-27 | 1984-04-04 | Activated Carbon Services Limited | A heating apparatus for heating solid, particulate material |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2621743C3 (en) * | 1976-05-15 | 1978-12-07 | Kernforschungszentrum Karlsruhe Gmbh, 7500 Karlsruhe | Process for reducing plutonium losses in uranium-plutonium mixed carbide production |
-
0
- BE BE754787D patent/BE754787A/en unknown
-
1969
- 1969-08-16 DE DE19691941828 patent/DE1941828A1/en active Pending
- 1969-12-10 FR FR6942750A patent/FR2030837A5/fr not_active Expired
-
1970
- 1970-08-11 GB GB3857670A patent/GB1317637A/en not_active Expired
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0104749A1 (en) * | 1982-08-27 | 1984-04-04 | Activated Carbon Services Limited | A heating apparatus for heating solid, particulate material |
Also Published As
| Publication number | Publication date |
|---|---|
| BE754787A (en) | 1971-01-18 |
| FR2030837A5 (en) | 1970-11-13 |
| DE1941828A1 (en) | 1971-03-25 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PS | Patent sealed | ||
| PLNP | Patent lapsed through nonpayment of renewal fees |