DE1085086B - Process for the production of gas-tight, nuclear-pure artificial coal for reactor construction - Google Patents
Process for the production of gas-tight, nuclear-pure artificial coal for reactor constructionInfo
- Publication number
- DE1085086B DE1085086B DER26253A DER0026253A DE1085086B DE 1085086 B DE1085086 B DE 1085086B DE R26253 A DER26253 A DE R26253A DE R0026253 A DER0026253 A DE R0026253A DE 1085086 B DE1085086 B DE 1085086B
- Authority
- DE
- Germany
- Prior art keywords
- tight
- gas
- beryllium
- nuclear
- charcoal
- 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.)
- Pending
Links
- 238000000034 method Methods 0.000 title claims description 7
- 238000010276 construction Methods 0.000 title claims description 5
- 238000004519 manufacturing process Methods 0.000 title description 3
- 239000003245 coal Substances 0.000 title description 2
- 239000003610 charcoal Substances 0.000 claims description 10
- ATBAMAFKBVZNFJ-UHFFFAOYSA-N beryllium atom Chemical compound [Be] ATBAMAFKBVZNFJ-UHFFFAOYSA-N 0.000 claims description 8
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 7
- 229910052751 metal Inorganic materials 0.000 claims description 6
- 239000002184 metal Substances 0.000 claims description 6
- 229910052790 beryllium Inorganic materials 0.000 claims description 5
- 239000011230 binding agent Substances 0.000 claims description 5
- 229910002804 graphite Inorganic materials 0.000 claims description 5
- 239000010439 graphite Substances 0.000 claims description 5
- 239000011148 porous material Substances 0.000 claims description 5
- 238000005470 impregnation Methods 0.000 claims description 3
- 150000002739 metals Chemical class 0.000 claims description 3
- 229910045601 alloy Inorganic materials 0.000 claims description 2
- 239000000956 alloy Substances 0.000 claims description 2
- 229910052799 carbon Inorganic materials 0.000 claims description 2
- 239000000203 mixture Substances 0.000 claims description 2
- 230000000704 physical effect Effects 0.000 claims description 2
- 230000002411 adverse Effects 0.000 claims 1
- 229910052782 aluminium Inorganic materials 0.000 claims 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims 1
- 238000000137 annealing Methods 0.000 description 2
- 239000003795 chemical substances by application Substances 0.000 description 2
- 229930195733 hydrocarbon Natural products 0.000 description 2
- 150000002430 hydrocarbons Chemical class 0.000 description 2
- 238000002791 soaking Methods 0.000 description 2
- UFHFLCQGNIYNRP-VVKOMZTBSA-N Dideuterium Chemical compound [2H][2H] UFHFLCQGNIYNRP-VVKOMZTBSA-N 0.000 description 1
- 125000004429 atom Chemical group 0.000 description 1
- 125000004432 carbon atom Chemical group C* 0.000 description 1
- 238000003776 cleavage reaction Methods 0.000 description 1
- 239000000571 coke Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 229910001338 liquidmetal Inorganic materials 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 230000007017 scission Effects 0.000 description 1
- 229920003002 synthetic resin Polymers 0.000 description 1
- 239000000057 synthetic resin Substances 0.000 description 1
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
- C04B41/00—After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone
- C04B41/009—After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone characterised by the material treated
-
- 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
-
- 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
- C04B41/00—After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone
- C04B41/45—Coating or impregnating, e.g. injection in masonry, partial coating of green or fired ceramics, organic coating compositions for adhering together two concrete elements
- C04B41/50—Coating or impregnating, e.g. injection in masonry, partial coating of green or fired ceramics, organic coating compositions for adhering together two concrete elements with inorganic materials
- C04B41/51—Metallising, e.g. infiltration of sintered ceramic preforms with molten metal
-
- 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
- C04B41/00—After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone
- C04B41/80—After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone of only ceramics
- C04B41/81—Coating or impregnation
- C04B41/85—Coating or impregnation with inorganic materials
- C04B41/88—Metals
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Ceramic Engineering (AREA)
- Organic Chemistry (AREA)
- Inorganic Chemistry (AREA)
- Materials Engineering (AREA)
- Structural Engineering (AREA)
- Manufacture Of Alloys Or Alloy Compounds (AREA)
Description
Verfahren zur Herstellung von gasdichter nuklear reiner Kunstkohle für den Reaktorbau Die Herstellung von nuklear reiner Kunstkohle erfolgt in bekannter Weise durch Vermischen von Kohlenstoffen, vorzugsweise Graphiten mit oder ohne Bindemitteln, z. B. aus Pechen oder anderen Kohlenwasserstoffen, anschließendes Verpressen und Glühen. Bei der Glühbehanlung, die bis 3000° C erfolgen kann, setzt sich ein Teil des Bindemittels in Koks bzw. Graphit um. Der andere Teil des Bindemittels entweicht und läßt ein mehr oder weniger großes Poren- bzw. Kapillarvolumen zurück.Process for the production of gas-tight, nuclear-pure artificial charcoal for the reactor construction The production of nuclear pure artificial coal takes place in the well-known Way by mixing carbons, preferably graphites with or without binders, z. B. from pitch or other hydrocarbons, then pressing and Glow. During the annealing treatment, which can take place up to 3000 ° C, a part settles of the binder in coke or graphite. The other part of the binder escapes and leaves a more or less large pore or capillary volume.
Die Porosität der Kunstkohle ist im Reaktorbau aus vielen Gründen unerwünscht, z. B. können Spaltprodukte durch die Poren in unerwünschte Zonen des Reaktors gelangen.The porosity of the charcoal is in reactor construction for many reasons undesirable, e.g. B. cleavage products through the pores in undesirable zones of the Arrive at the reactor.
Es sind verschiedene Verfahren bekannt, Kunstkohle nachträglich durch Tränken mit organischen Mitteln wie Pech, Kunstharzen oder Kohlenwasserstoffen zu imprägnieren und durch mehrmalige Glüh-und Tränkbehandlung gasdicht zu machen.Various methods are known for subsequently applying charcoal Soaking with organic agents such as pitch, synthetic resins or hydrocarbons impregnate and make it gas-tight by repeated annealing and soaking treatment.
Außerdem ist bekannt, Kunstkohle mit anorganischen Mitteln, z. B. Metallen oder Metallösungen, zu tränken und damit eine gewisse Dichtigkeit zu erreichen, die neben einer Verbesserung der Wärmeleitung z. B. bei Wärmeaustauschern von Wichtigkeit ist. Der Wirkungsquerschnitt der Atome war dabei ohne Interesse.It is also known to use artificial charcoal with inorganic agents, e.g. B. Metals or metal solutions, to soak and thus achieve a certain tightness, which in addition to an improvement in heat conduction z. B. of importance in heat exchangers is. The cross-section of the atoms was of no interest.
Bei Graphiten für den Reaktorbau hat man sich dagegen bis jetzt bemüht, ein lediglich aus C-Atomen aufgebautes Produkt zu erhalten. Erfindungsgemäß wird nun vorgeschlagen, die Kunstkohlekörper mit solchen Metallen zu imprägnieren und dadurch gasdicht zu machen, welche keine schlechteren kernphysikalischen Eigenschaften haben als der Kohlenstoff, die also die Neutronen nicht stärker absorbieren.In the case of graphites for reactor construction, however, efforts have so far been made to obtain a product composed only of carbon atoms. According to the invention now proposed to impregnate the charcoal body with such metals and thereby making it gas-tight, which does not have any inferior core physical properties than the carbon, which means that the neutrons do not absorb more strongly.
Im besonderen eignet sich hierzu eine Tränkung mit Beryllium bzw. mit berylliumhaltigen Legierungen. Beryllium ist neben schwerem Wasserstoff als Moderatorwerkstoff geeignet und ergänzt die diesbezüglichen Eigenschaften des Graphits besonders hinsichtlich der Bremswirkung für Neutronen. Die Tränkung wird zweckmäßig in an sich bekannter Weise in einem Druckgefäß vorgenommen. Die Kunstkohle wird in die Metallschmelze getaucht, dann wird evakuiert, um die Luft aus den Poren zu treiben, und anschließend wird das flüssige Metall unter Druck in die Poren gepreßt.In particular, an impregnation with beryllium or with alloys containing beryllium. Beryllium is considered to be alongside heavy hydrogen Suitable for moderator material and complements the relevant properties of graphite especially with regard to the braking effect for neutrons. The impregnation is expedient made in a known manner in a pressure vessel. The charcoal will immersed in the molten metal, then evacuated to remove the air from the pores drive, and then the liquid metal is pressed into the pores under pressure.
Es ist auch möglich, gasdichte Kunstkohlekörper zu erzielen, indem ein Gemisch aus Kunstkohle, vorzugsweise Graphit, mit Berylliummetall, vorzugsweise in Pulverform, gegebenenfalls unter Verwendung von Bindemitteln, verpreßt und gesintert wird.It is also possible to achieve gas-tight charcoal bodies by a mixture of charcoal, preferably graphite, with beryllium metal, preferably in powder form, optionally with the use of binders, pressed and sintered will.
Claims (4)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DER26253A DE1085086B (en) | 1959-08-27 | 1959-08-27 | Process for the production of gas-tight, nuclear-pure artificial coal for reactor construction |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DER26253A DE1085086B (en) | 1959-08-27 | 1959-08-27 | Process for the production of gas-tight, nuclear-pure artificial coal for reactor construction |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DE1085086B true DE1085086B (en) | 1960-07-07 |
Family
ID=7402139
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DER26253A Pending DE1085086B (en) | 1959-08-27 | 1959-08-27 | Process for the production of gas-tight, nuclear-pure artificial coal for reactor construction |
Country Status (1)
| Country | Link |
|---|---|
| DE (1) | DE1085086B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1248176B (en) * | 1961-03-21 | 1967-08-24 | Sigri Elektrographit Gmbh | Nuclear reactor fuel element for high temperatures |
| DE1293922B (en) * | 1961-07-14 | 1969-04-30 | Sigri Elektrographit Gmbh | Process for the production of a high temperature nuclear reactor fuel element with a graphite source |
| US4617053A (en) * | 1985-09-20 | 1986-10-14 | Great Lakes Carbon Corporation | Metal reinforced porous refractory hard metal bodies |
-
1959
- 1959-08-27 DE DER26253A patent/DE1085086B/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1248176B (en) * | 1961-03-21 | 1967-08-24 | Sigri Elektrographit Gmbh | Nuclear reactor fuel element for high temperatures |
| DE1293922B (en) * | 1961-07-14 | 1969-04-30 | Sigri Elektrographit Gmbh | Process for the production of a high temperature nuclear reactor fuel element with a graphite source |
| US4617053A (en) * | 1985-09-20 | 1986-10-14 | Great Lakes Carbon Corporation | Metal reinforced porous refractory hard metal bodies |
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