NL8200183A - Werkwijze voor het thermisch ontleden van een metaalnitraatoplossing. - Google Patents

Werkwijze voor het thermisch ontleden van een metaalnitraatoplossing. Download PDF

Info

Publication number: NL8200183A
Authority: NL; Netherlands
Prior art keywords: fuel; powder; ceramic; ammonium nitrate; tablets
Prior art date: 1981-01-21

Application number

NL8200183A

Other languages

English (en)

Dutch (nl)

Original Assignee

Us Energy

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.)

1981-01-21

Filing date

1982-01-19

Publication date

1982-08-16

1982-01-19 Application filed by Us Energy filed Critical Us Energy

1982-08-16 Publication of NL8200183A publication Critical patent/NL8200183A/nl

Links

238000000034 method Methods 0.000 title claims description 119
238000000354 decomposition reaction Methods 0.000 title claims description 19
229910001960 metal nitrate Inorganic materials 0.000 title description 8
230000008569 process Effects 0.000 claims description 76
239000000843 powder Substances 0.000 claims description 62
239000000446 fuel Substances 0.000 claims description 42
PAWQVTBBRAZDMG-UHFFFAOYSA-N 2-(3-bromo-2-fluorophenyl)acetic acid Chemical compound OC(=O)CC1=CC=CC(Br)=C1F PAWQVTBBRAZDMG-UHFFFAOYSA-N 0.000 claims description 34
239000000243 solution Substances 0.000 claims description 34
239000003758 nuclear fuel Substances 0.000 claims description 30
239000000919 ceramic Substances 0.000 claims description 23
238000004519 manufacturing process Methods 0.000 claims description 22
239000000463 material Substances 0.000 claims description 19
229910002651 NO3 Inorganic materials 0.000 claims description 13
NHNBFGGVMKEFGY-UHFFFAOYSA-N Nitrate Chemical compound [O-][N+]([O-])=O NHNBFGGVMKEFGY-UHFFFAOYSA-N 0.000 claims description 13
238000010438 heat treatment Methods 0.000 claims description 11
229910001385 heavy metal Inorganic materials 0.000 claims description 11
229910044991 metal oxide Inorganic materials 0.000 claims description 9
150000004706 metal oxides Chemical class 0.000 claims description 9
238000005245 sintering Methods 0.000 claims description 9
229910052776 Thorium Inorganic materials 0.000 claims description 7
239000000203 mixture Substances 0.000 claims description 7
ZSLUVFAKFWKJRC-IGMARMGPSA-N 232Th Chemical compound [232Th] ZSLUVFAKFWKJRC-IGMARMGPSA-N 0.000 claims description 6
239000002245 particle Substances 0.000 claims description 6
229910052778 Plutonium Inorganic materials 0.000 claims description 4
238000005056 compaction Methods 0.000 claims description 4
OYEHPCDNVJXUIW-UHFFFAOYSA-N plutonium atom Chemical compound [Pu] OYEHPCDNVJXUIW-UHFFFAOYSA-N 0.000 claims description 4
238000001179 sorption measurement Methods 0.000 claims description 3
239000007864 aqueous solution Substances 0.000 claims description 2
239000012298 atmosphere Substances 0.000 claims description 2
JCMLRUNDSXARRW-UHFFFAOYSA-N trioxouranium Chemical compound O=[U](=O)=O JCMLRUNDSXARRW-UHFFFAOYSA-N 0.000 claims 1
239000008188 pellet Substances 0.000 description 31
239000000047 product Substances 0.000 description 23
229910052751 metal Inorganic materials 0.000 description 13
239000002184 metal Substances 0.000 description 13
238000012958 reprocessing Methods 0.000 description 11
QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 description 10
229910052770 Uranium Inorganic materials 0.000 description 10
238000001556 precipitation Methods 0.000 description 10
239000000654 additive Substances 0.000 description 9
238000006243 chemical reaction Methods 0.000 description 9
238000005979 thermal decomposition reaction Methods 0.000 description 9
JFALSRSLKYAFGM-UHFFFAOYSA-N uranium(0) Chemical compound [U] JFALSRSLKYAFGM-UHFFFAOYSA-N 0.000 description 9
238000004458 analytical method Methods 0.000 description 8
239000007787 solid Substances 0.000 description 8
FCTBKIHDJGHPPO-UHFFFAOYSA-N uranium dioxide Inorganic materials O=[U]=O FCTBKIHDJGHPPO-UHFFFAOYSA-N 0.000 description 8
239000000126 substance Substances 0.000 description 7
230000000694 effects Effects 0.000 description 6
239000011230 binding agent Substances 0.000 description 5
230000007547 defect Effects 0.000 description 5
239000000428 dust Substances 0.000 description 5
238000012360 testing method Methods 0.000 description 5
230000002411 adverse Effects 0.000 description 4
230000015572 biosynthetic process Effects 0.000 description 4
238000001354 calcination Methods 0.000 description 4
238000011109 contamination Methods 0.000 description 4
238000005516 engineering process Methods 0.000 description 4
230000006872 improvement Effects 0.000 description 4
238000012545 processing Methods 0.000 description 4
239000002002 slurry Substances 0.000 description 4
210000003934 vacuole Anatomy 0.000 description 4
229910052768 actinide Inorganic materials 0.000 description 3
150000001255 actinides Chemical class 0.000 description 3
229910021529 ammonia Inorganic materials 0.000 description 3
238000012937 correction Methods 0.000 description 3
230000007797 corrosion Effects 0.000 description 3
238000005260 corrosion Methods 0.000 description 3
239000013078 crystal Substances 0.000 description 3
239000012527 feed solution Substances 0.000 description 3
239000011521 glass Substances 0.000 description 3
238000011068 loading method Methods 0.000 description 3
239000000314 lubricant Substances 0.000 description 3
150000002739 metals Chemical class 0.000 description 3
238000001000 micrograph Methods 0.000 description 3
229910003455 mixed metal oxide Inorganic materials 0.000 description 3
238000002156 mixing Methods 0.000 description 3
238000012986 modification Methods 0.000 description 3
230000004048 modification Effects 0.000 description 3
235000015097 nutrients Nutrition 0.000 description 3
238000003825 pressing Methods 0.000 description 3
230000009467 reduction Effects 0.000 description 3
238000003756 stirring Methods 0.000 description 3
238000002411 thermogravimetry Methods 0.000 description 3
230000000007 visual effect Effects 0.000 description 3
XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 description 2
IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
229910052684 Cerium Inorganic materials 0.000 description 2
GRYLNZFGIOXLOG-UHFFFAOYSA-N Nitric acid Chemical compound O[N+]([O-])=O GRYLNZFGIOXLOG-UHFFFAOYSA-N 0.000 description 2
230000000996 additive effect Effects 0.000 description 2
230000008901 benefit Effects 0.000 description 2
GWXLDORMOJMVQZ-UHFFFAOYSA-N cerium Chemical compound [Ce] GWXLDORMOJMVQZ-UHFFFAOYSA-N 0.000 description 2
238000001816 cooling Methods 0.000 description 2
238000002474 experimental method Methods 0.000 description 2
230000002349 favourable effect Effects 0.000 description 2
239000007789 gas Substances 0.000 description 2
238000000227 grinding Methods 0.000 description 2
238000003475 lamination Methods 0.000 description 2
238000012544 monitoring process Methods 0.000 description 2
229910017604 nitric acid Inorganic materials 0.000 description 2
OOAWCECZEHPMBX-UHFFFAOYSA-N oxygen(2-);uranium(4+) Chemical compound [O-2].[O-2].[U+4] OOAWCECZEHPMBX-UHFFFAOYSA-N 0.000 description 2
239000011148 porous material Substances 0.000 description 2
230000000717 retained effect Effects 0.000 description 2
239000012265 solid product Substances 0.000 description 2
229910001220 stainless steel Inorganic materials 0.000 description 2
239000010935 stainless steel Substances 0.000 description 2
230000008646 thermal stress Effects 0.000 description 2
238000012546 transfer Methods 0.000 description 2
KUKDDTFBSTXDTC-UHFFFAOYSA-N uranium;hexanitrate Chemical compound [U].[O-][N+]([O-])=O.[O-][N+]([O-])=O.[O-][N+]([O-])=O.[O-][N+]([O-])=O.[O-][N+]([O-])=O.[O-][N+]([O-])=O KUKDDTFBSTXDTC-UHFFFAOYSA-N 0.000 description 2
229910002007 uranyl nitrate Inorganic materials 0.000 description 2
238000011179 visual inspection Methods 0.000 description 2
101100008041 Arabidopsis thaliana CURT1B gene Proteins 0.000 description 1
101100275461 Artemia franciscana COIII gene Proteins 0.000 description 1
IOVCWXUNBOPUCH-UHFFFAOYSA-N Nitrous acid Chemical compound ON=O IOVCWXUNBOPUCH-UHFFFAOYSA-N 0.000 description 1
206010067482 No adverse event Diseases 0.000 description 1
FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical compound [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 description 1
238000009825 accumulation Methods 0.000 description 1
238000003915 air pollution Methods 0.000 description 1
229910052786 argon Inorganic materials 0.000 description 1
239000012300 argon atmosphere Substances 0.000 description 1
QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
239000006227 byproduct Substances 0.000 description 1
239000003795 chemical substances by application Substances 0.000 description 1
229910052804 chromium Inorganic materials 0.000 description 1
238000000975 co-precipitation Methods 0.000 description 1
238000011278 co-treatment Methods 0.000 description 1
239000011362 coarse particle Substances 0.000 description 1
239000000470 constituent Substances 0.000 description 1
238000010924 continuous production Methods 0.000 description 1
238000000113 differential scanning calorimetry Methods 0.000 description 1
238000010790 dilution Methods 0.000 description 1
239000012895 dilution Substances 0.000 description 1
238000004090 dissolution Methods 0.000 description 1
230000008030 elimination Effects 0.000 description 1
238000003379 elimination reaction Methods 0.000 description 1
239000000945 filler Substances 0.000 description 1
239000010419 fine particle Substances 0.000 description 1
-1 glassy leaves Substances 0.000 description 1
238000005469 granulation Methods 0.000 description 1
230000003179 granulation Effects 0.000 description 1
239000012535 impurity Substances 0.000 description 1
238000010348 incorporation Methods 0.000 description 1
238000007689 inspection Methods 0.000 description 1
238000011835 investigation Methods 0.000 description 1
229910052742 iron Inorganic materials 0.000 description 1
238000012423 maintenance Methods 0.000 description 1
230000014759 maintenance of location Effects 0.000 description 1
238000004949 mass spectrometry Methods 0.000 description 1
230000007246 mechanism Effects 0.000 description 1
239000011812 mixed powder Substances 0.000 description 1
230000003472 neutralizing effect Effects 0.000 description 1
229910052759 nickel Inorganic materials 0.000 description 1
150000002823 nitrates Chemical class 0.000 description 1
229910052757 nitrogen Inorganic materials 0.000 description 1
229910000069 nitrogen hydride Inorganic materials 0.000 description 1
231100000252 nontoxic Toxicity 0.000 description 1
230000003000 nontoxic effect Effects 0.000 description 1
239000011824 nuclear material Substances 0.000 description 1
238000005457 optimization Methods 0.000 description 1
239000001301 oxygen Substances 0.000 description 1
229910052760 oxygen Inorganic materials 0.000 description 1
UUZZMWZGAZGXSF-UHFFFAOYSA-N peroxynitric acid Chemical compound OON(=O)=O UUZZMWZGAZGXSF-UHFFFAOYSA-N 0.000 description 1
230000000704 physical effect Effects 0.000 description 1
239000002244 precipitate Substances 0.000 description 1
238000002360 preparation method Methods 0.000 description 1
230000035755 proliferation Effects 0.000 description 1
229910052761 rare earth metal Inorganic materials 0.000 description 1
238000011084 recovery Methods 0.000 description 1
238000002407 reforming Methods 0.000 description 1
150000003839 salts Chemical class 0.000 description 1
238000007493 shaping process Methods 0.000 description 1
238000007873 sieving Methods 0.000 description 1
238000005549 size reduction Methods 0.000 description 1
238000004513 sizing Methods 0.000 description 1
230000000087 stabilizing effect Effects 0.000 description 1
238000003860 storage Methods 0.000 description 1
230000008961 swelling Effects 0.000 description 1
238000009475 tablet pressing Methods 0.000 description 1
238000002076 thermal analysis method Methods 0.000 description 1
238000005382 thermal cycling Methods 0.000 description 1
230000001988 toxicity Effects 0.000 description 1
231100000419 toxicity Toxicity 0.000 description 1
230000007704 transition Effects 0.000 description 1
239000003039 volatile agent Substances 0.000 description 1
XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
238000005303 weighing Methods 0.000 description 1
230000004580 weight loss Effects 0.000 description 1

Classifications

- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01G—COMPOUNDS CONTAINING METALS NOT COVERED BY SUBCLASSES C01D OR C01F
- C01G55/00—Compounds of ruthenium, rhodium, palladium, osmium, iridium, or platinum
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01F—COMPOUNDS OF THE METALS BERYLLIUM, MAGNESIUM, ALUMINIUM, CALCIUM, STRONTIUM, BARIUM, RADIUM, THORIUM, OR OF THE RARE-EARTH METALS
- C01F15/00—Compounds of thorium
- 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
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01G—COMPOUNDS CONTAINING METALS NOT COVERED BY SUBCLASSES C01D OR C01F
- C01G55/00—Compounds of ruthenium, rhodium, palladium, osmium, iridium, or platinum
- C01G55/004—Oxides; Hydroxides
- 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
- G21C3/623—Oxide fuels
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
- C01P2004/00—Particle morphology
- C01P2004/01—Particle morphology depicted by an image
- C01P2004/02—Particle morphology depicted by an image obtained by optical microscopy
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
- C01P2004/00—Particle morphology
- C01P2004/50—Agglomerated particles
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
- C01P2004/00—Particle morphology
- C01P2004/60—Particles characterised by their size
- C01P2004/61—Micrometer sized, i.e. from 1-100 micrometer
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
- C01P2006/00—Physical properties of inorganic compounds
- C01P2006/10—Solid density
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
- C01P2006/00—Physical properties of inorganic compounds
- C01P2006/11—Powder tap density
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
- C01P2006/00—Physical properties of inorganic compounds
- C01P2006/12—Surface area
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
- C01P2006/00—Physical properties of inorganic compounds
- C01P2006/60—Optical properties, e.g. expressed in CIELAB-values
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
- C01P2006/00—Physical properties of inorganic compounds
- C01P2006/80—Compositional purity
- 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

Chemical & Material Sciences (AREA)
Organic Chemistry (AREA)
Inorganic Chemistry (AREA)
Engineering & Computer Science (AREA)
Life Sciences & Earth Sciences (AREA)
Geology (AREA)
Physics & Mathematics (AREA)
General Life Sciences & Earth Sciences (AREA)
Ceramic Engineering (AREA)
Plasma & Fusion (AREA)
General Engineering & Computer Science (AREA)
High Energy & Nuclear Physics (AREA)
Inorganic Compounds Of Heavy Metals (AREA)
Compounds Of Alkaline-Earth Elements, Aluminum Or Rare-Earth Metals (AREA)

NL8200183A 1981-01-21 1982-01-19 Werkwijze voor het thermisch ontleden van een metaalnitraatoplossing. NL8200183A (nl)

Applications Claiming Priority (2)

Application Number	Priority Date	Filing Date	Title
US22657681		1981-01-21
US06/226,576 US4409157A (en)	1981-01-21	1981-01-21	Method for improved decomposition of metal nitrate solutions

Publications (1)

Publication Number	Publication Date
NL8200183A true NL8200183A (nl)	1982-08-16

Family

ID=22849464

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
NL8200183A NL8200183A (nl)	1981-01-21	1982-01-19	Werkwijze voor het thermisch ontleden van een metaalnitraatoplossing.

Country Status (10)

Country	Link
US (1)	US4409157A (2)
JP (1)	JPS57179022A (2)
BE (1)	BE891819A (2)
CA (1)	CA1170032A (2)
CH (1)	CH649978A5 (2)
DE (1)	DE3201771A1 (2)
FR (1)	FR2498364B1 (2)
GB (1)	GB2091710B (2)
IT (1)	IT1149708B (2)
NL (1)	NL8200183A (2)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
DE3144684C1 (de) *	1981-11-10	1983-04-14	Kraftwerk Union AG, 4330 Mülheim	Verfahren zum Herstellen von oxidischen Kernbrennstoffsinterkoerpern
JPS59114498A (ja) *	1982-12-21	1984-07-02	動力炉・核燃料開発事業団	マイクロ波による連続濃縮・脱硝装置
DE3333652C2 (de) *	1983-09-17	1986-04-24	Nukem Gmbh, 6450 Hanau	Verfahren zur Herstellung von salpetersäurelöslichen Uran-Thorium- und Uran-Plutonium-Mischoxiden
FR2555566B1 (fr) *	1983-11-25	1989-02-17	Comurhex	Procede de preparation d'oxydes metalliques pulverulents a partir de solutions aqueuses ou de melanges solides de nitrates metalliques
DE3406084A1 (de) *	1984-02-20	1985-08-22	Kraftwerk Union AG, 4330 Mülheim	Verfahren zum herstellen von oxidischen kernbrennstoffsinterkoerpern
GB8430244D0 (en) *	1984-11-30	1985-01-09	Atomic Energy Authority Uk	Preparation of materials
US4871479A (en) *	1986-03-25	1989-10-03	Comurhex Societe Pour La Conversion De L'uranium En Metal Et Hexafluorure	Process for producing sintered mixed oxides which are soluble in nitric acid from solutions of nitrates
US5419886A (en) *	1994-03-08	1995-05-30	Rockwell International Corporation	Method for generation of finely divided reactive plutonium oxide powder
CA2898612C (en)	2013-01-18	2019-02-19	Rare Element Resources Ltd.	Selective extraction of rare earth elements by oxalic acid precipitation

Family Cites Families (13)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
NL112594C (2) *	1959-09-18
US3287279A (en) *	1965-08-11	1966-11-22	Ward L Lyon	Preparation of a filterable co-precipitate of plutonium and uranium
US3514412A (en) *	1967-09-25	1970-05-26	Grace W R & Co	Process for preparing urania-plutonia nuclear fuel
US3725293A (en) *	1972-01-11	1973-04-03	Atomic Energy Commission	Conversion of fuel-metal nitrate solutions to oxides
US3862296A (en) *	1972-02-09	1975-01-21	Gen Electric	Conversion process for waste nitrogen-containing compounds
US4184976A (en) *	1973-05-08	1980-01-22	Kernforschungsanlage Julich Gesellschaft Mit Beschrankter Haftung	Method of making metallic oxide or carbide particles
US3911076A (en) *	1973-12-28	1975-10-07	Kennecott Copper Corp	Process for purifying molybdenite concentrates
DE2617968C3 (de) *	1976-04-24	1980-05-22	Kernforschungsanlage Juelich Gmbh, 5170 Juelich	Verfahren zur Aufarbeitung von bei der Herstellung von Brenn- und/oder Brutstoffen für Kernreaktoren anfallender Ammoniumnitratlösung
DE2623977C3 (de) *	1976-05-28	1979-04-12	Nukem Gmbh, 6450 Hanau	Verfahren und Vorrichtung zur Herstellung von rieselfähigem, direkt verpressbarem Urandioxid-Pulver
US4065300A (en) *	1976-06-28	1977-12-27	Poarch Archie L	Method for extraction of copper products from copper bearing material
GB2004256B (en) *	1977-09-16	1982-01-20	Alkem Gmbh	Process for the production of uo2/puo2 nuclear fuels
US4261934A (en) *	1978-11-30	1981-04-14	Electric Power Research Institute, Inc.	Method for homogenizing mixed oxide nuclear fuels
US4225455A (en) *	1979-06-20	1980-09-30	The United States Of America As Represented By The United States Department Of Energy	Process for decomposing nitrates in aqueous solution

1981
- 1981-01-21 US US06/226,576 patent/US4409157A/en not_active Expired - Fee Related
1982
- 1982-01-05 CA CA000393606A patent/CA1170032A/en not_active Expired
- 1982-01-07 GB GB8200389A patent/GB2091710B/en not_active Expired
- 1982-01-18 BE BE0/207081A patent/BE891819A/fr not_active IP Right Cessation
- 1982-01-19 NL NL8200183A patent/NL8200183A/nl not_active Application Discontinuation
- 1982-01-20 IT IT19194/82A patent/IT1149708B/it active
- 1982-01-20 FR FR8200837A patent/FR2498364B1/fr not_active Expired
- 1982-01-21 DE DE19823201771 patent/DE3201771A1/de not_active Withdrawn
- 1982-01-21 CH CH379/82A patent/CH649978A5/fr not_active IP Right Cessation
- 1982-01-21 JP JP57008224A patent/JPS57179022A/ja active Granted

Also Published As

Publication number	Publication date
CA1170032A (en)	1984-07-03
JPS57179022A (en)	1982-11-04
BE891819A (fr)	1982-05-17
FR2498364B1 (fr)	1988-05-27
CH649978A5 (fr)	1985-06-28
IT8219194A0 (it)	1982-01-20
DE3201771A1 (de)	1982-11-11
FR2498364A1 (fr)	1982-07-23
GB2091710B (en)	1985-03-06
US4409157A (en)	1983-10-11
IT1149708B (it)	1986-12-10
GB2091710A (en)	1982-08-04
JPH03333B2 (2)	1991-01-07

Legal Events

Date	Code	Title
1985-01-01	A85	Still pending on 85-01-01
1989-03-01	BA	A request for search or an international-type search has been filed
1989-03-01	BB	A search report has been drawn up
1989-07-03	BC	A request for examination has been filed
1990-09-03	BV	The patent application has lapsed

Publication	Publication Date	Title
US4397778A (en)	1983-08-09	Coprocessed nuclear fuels containing (U, Pu) values as oxides, carbides or carbonitrides
CN85103081A (zh)	1986-10-22	从金属的硝酸盐的水溶液或固体混合物制取粉状金属氧化物的方法
Ledergerber et al.	1996	Preparation of transuranium fuel and target materials for the transmutation of actinides by gel coconversion
DE2713108A1 (de)	1978-10-05	Verfahren zur herstellung von keramischem plutonium-uran-kernbrennstoff in form von sinterpellets
US4409157A (en)	1983-10-11	Method for improved decomposition of metal nitrate solutions
Ganguly et al.	1986	Sol-Gel microsphere pelletization process for fabrication of high-density ThO2—2% UO2 fuel for advanced pressurized heavy water reactors
Colledge et al.	2023	A review of alternative finishing options for uranium/plutonium and minor actinide nitrate products from thermal and fast reactor fuels reprocessing
Haas	1988	A comparison of processes for the conversion of uranyl nitrate into ceramic-grade UO2
EP0156018B1 (de)	1987-10-28	Verfahren zum Herstellen von oxidischen Kernbrennstoffsinterkörpern
US3287279A (en)	1966-11-22	Preparation of a filterable co-precipitate of plutonium and uranium
DE2831429A1 (de)	1980-01-31	Verfahren zur verfestigung von radioaktiven spaltprodukten
DE102015209962B4 (de)	2026-01-08	Partikel-Partikel Vibrations-Wärmeübertrager
DE1592471B2 (de)	1978-03-30	Verfahren zur Herstellung von Urandioxidpulvern und -granulaten
Jonke et al.	1958	Fluidization techniques in producing refined uranium from ore concentrates
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