GB1313750A - Manufacture of microspheres by gel precipitation methods - Google Patents
Manufacture of microspheres by gel precipitation methodsInfo
- Publication number
- GB1313750A GB1313750A GB4999869A GB1313750DA GB1313750A GB 1313750 A GB1313750 A GB 1313750A GB 4999869 A GB4999869 A GB 4999869A GB 1313750D A GB1313750D A GB 1313750DA GB 1313750 A GB1313750 A GB 1313750A
- Authority
- GB
- United Kingdom
- Prior art keywords
- microspheres
- nitrate
- oxide
- gel
- solution
- 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
- 239000004005 microsphere Substances 0.000 title abstract 4
- 238000004519 manufacturing process Methods 0.000 title 1
- 238000000034 method Methods 0.000 title 1
- 238000001556 precipitation Methods 0.000 title 1
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 abstract 2
- ZHNUHDYFZUAESO-UHFFFAOYSA-N Formamide Chemical compound NC=O ZHNUHDYFZUAESO-UHFFFAOYSA-N 0.000 abstract 2
- 229910002651 NO3 Inorganic materials 0.000 abstract 2
- NHNBFGGVMKEFGY-UHFFFAOYSA-N Nitrate Chemical compound [O-][N+]([O-])=O NHNBFGGVMKEFGY-UHFFFAOYSA-N 0.000 abstract 2
- 239000012670 alkaline solution Substances 0.000 abstract 2
- 150000003863 ammonium salts Chemical class 0.000 abstract 2
- 229910052799 carbon Inorganic materials 0.000 abstract 2
- 239000000463 material Substances 0.000 abstract 2
- 229910002007 uranyl nitrate Inorganic materials 0.000 abstract 2
- QTBSBXVTEAMEQO-UHFFFAOYSA-M Acetate Chemical compound CC([O-])=O QTBSBXVTEAMEQO-UHFFFAOYSA-M 0.000 abstract 1
- VEXZGXHMUGYJMC-UHFFFAOYSA-M Chloride anion Chemical compound [Cl-] VEXZGXHMUGYJMC-UHFFFAOYSA-M 0.000 abstract 1
- KRHYYFGTRYWZRS-UHFFFAOYSA-M Fluoride anion Chemical compound [F-] KRHYYFGTRYWZRS-UHFFFAOYSA-M 0.000 abstract 1
- JVTAAEKCZFNVCJ-UHFFFAOYSA-M Lactate Chemical compound CC(O)C([O-])=O JVTAAEKCZFNVCJ-UHFFFAOYSA-M 0.000 abstract 1
- 229920000881 Modified starch Polymers 0.000 abstract 1
- 239000004372 Polyvinyl alcohol Substances 0.000 abstract 1
- QAOWNCQODCNURD-UHFFFAOYSA-L Sulfate Chemical compound [O-]S([O-])(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-L 0.000 abstract 1
- 229910052770 Uranium Inorganic materials 0.000 abstract 1
- XOQIPTFXWRJKPQ-UHFFFAOYSA-N [Pu+4].[O-][N+]([O-])=O.[O-][N+]([O-])=O.[O-][N+]([O-])=O.[O-][N+]([O-])=O Chemical class [Pu+4].[O-][N+]([O-])=O.[O-][N+]([O-])=O.[O-][N+]([O-])=O.[O-][N+]([O-])=O XOQIPTFXWRJKPQ-UHFFFAOYSA-N 0.000 abstract 1
- 239000007864 aqueous solution Substances 0.000 abstract 1
- 239000001913 cellulose Substances 0.000 abstract 1
- 229920002678 cellulose Polymers 0.000 abstract 1
- XMPZTFVPEKAKFH-UHFFFAOYSA-P ceric ammonium nitrate Chemical compound [NH4+].[NH4+].[Ce+4].[O-][N+]([O-])=O.[O-][N+]([O-])=O.[O-][N+]([O-])=O.[O-][N+]([O-])=O.[O-][N+]([O-])=O.[O-][N+]([O-])=O XMPZTFVPEKAKFH-UHFFFAOYSA-P 0.000 abstract 1
- 229910052751 metal Inorganic materials 0.000 abstract 1
- 239000002184 metal Substances 0.000 abstract 1
- 239000000203 mixture Substances 0.000 abstract 1
- 235000019426 modified starch Nutrition 0.000 abstract 1
- 230000001590 oxidative effect Effects 0.000 abstract 1
- 229920002451 polyvinyl alcohol Polymers 0.000 abstract 1
- 150000003839 salts Chemical class 0.000 abstract 1
- 239000000243 solution Substances 0.000 abstract 1
- 229910021653 sulphate ion Inorganic materials 0.000 abstract 1
- JFALSRSLKYAFGM-UHFFFAOYSA-N uranium(0) Chemical compound [U] JFALSRSLKYAFGM-UHFFFAOYSA-N 0.000 abstract 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01G—COMPOUNDS CONTAINING METALS NOT COVERED BY SUBCLASSES C01D OR C01F
- C01G43/00—Compounds of uranium
-
- 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
- B01J2/00—Processes or devices for granulating materials, e.g. fertilisers in general; Rendering particulate materials free flowing in general, e.g. making them hydrophobic
- B01J2/02—Processes or devices for granulating materials, e.g. fertilisers in general; Rendering particulate materials free flowing in general, e.g. making them hydrophobic by dividing the liquid material into drops, e.g. by spraying, and solidifying the drops
- B01J2/06—Processes or devices for granulating materials, e.g. fertilisers in general; Rendering particulate materials free flowing in general, e.g. making them hydrophobic by dividing the liquid material into drops, e.g. by spraying, and solidifying the drops in a liquid medium
- B01J2/08—Gelation of a colloidal solution
-
- 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)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geology (AREA)
- Inorganic Chemistry (AREA)
- Dispersion Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Inorganic Compounds Of Heavy Metals (AREA)
Abstract
1313750 Microspheres UNITED KINGDOM ATOMIC ENERGY AUTHORITY 23 Dec 1970 [10 Oct 1969] 49998/69 Heading C1A [Also in Division G6] Oxide or carbide microspheres are produced by mixing an aqueous solution or sol containing a metal salt or oxide with a water-soluble polymeric material and an ammonium salt or formamide, with or without carbon, and introducing drops of the mixture into an aqueous alkaline solution to form gel microspheres. The solution may contain uranyl nitrate or fluoride, uranyl nitrate + cerium ammonium nitrate, uranium + plutonium nitrates, or ZrO 2 Sol. The ammonium salt may be the nitrate, acetate, sulphate, lactate, or chloride. The polymeric material may be a starch derivative, a cellulose derivative, or polyvinyl alcohol. The alkaline solution may be NH 4 OH. Where carbon is present, the gel may be calcined in an atmosphere such as to form the carbide, oxycarbide or nitrate (e.g. up to 1000 C. in CO 2 , then up to 1600C. in H 2 ), or in an oxidizing atmosphere to form porous oxide. An oxide gel may be calcined in CO 2 up to 850 or 900 C. and then in H 2 up to 1450 or 1600 C.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB4999869 | 1969-10-10 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1313750A true GB1313750A (en) | 1973-04-18 |
Family
ID=10454266
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB4999869A Expired GB1313750A (en) | 1969-10-10 | 1969-10-10 | Manufacture of microspheres by gel precipitation methods |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB1313750A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2747783A1 (en) * | 1976-10-26 | 1978-04-27 | Atomic Energy Authority Uk | METHOD OF DRYING MATERIAL |
| DE2841853A1 (en) * | 1977-09-26 | 1979-04-12 | Nat Res Dev | METHOD FOR MANUFACTURING BALLS FROM AN INORGANIC MATERIAL AND THE PRODUCTS OBTAINED THEREOF |
| FR2425128A1 (en) * | 1978-05-05 | 1979-11-30 | Agip Nucleare Spa | PROCESS FOR PREPARING CERAMIC NUCLEAR FUEL PELLETS |
| DE2921424A1 (en) * | 1978-05-26 | 1979-12-06 | Atomic Energy Authority Uk | METHOD OF MANUFACTURING A SHAPED BODY |
| EP0106448A2 (en) * | 1982-08-13 | 1984-04-25 | United Kingdom Atomic Energy Authority | Process for the preparation of oxide materials, consisting of or containing tin oxide |
-
1969
- 1969-10-10 GB GB4999869A patent/GB1313750A/en not_active Expired
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2747783A1 (en) * | 1976-10-26 | 1978-04-27 | Atomic Energy Authority Uk | METHOD OF DRYING MATERIAL |
| DE2841853A1 (en) * | 1977-09-26 | 1979-04-12 | Nat Res Dev | METHOD FOR MANUFACTURING BALLS FROM AN INORGANIC MATERIAL AND THE PRODUCTS OBTAINED THEREOF |
| FR2425128A1 (en) * | 1978-05-05 | 1979-11-30 | Agip Nucleare Spa | PROCESS FOR PREPARING CERAMIC NUCLEAR FUEL PELLETS |
| DE2921424A1 (en) * | 1978-05-26 | 1979-12-06 | Atomic Energy Authority Uk | METHOD OF MANUFACTURING A SHAPED BODY |
| EP0106448A2 (en) * | 1982-08-13 | 1984-04-25 | United Kingdom Atomic Energy Authority | Process for the preparation of oxide materials, consisting of or containing tin oxide |
| EP0106448A3 (en) * | 1982-08-13 | 1985-11-21 | United Kingdom Atomic Energy Authority | Process for the preparation of oxide materials, consisting of or containing tin oxide |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US3397257A (en) | Method of forming spheroids of particulate, agglomeration-resistant refractory metal oxides | |
| GB1350389A (en) | Processes for precipitating metal compounds | |
| GB1294172A (en) | Process for converting an aliphatic nitrile to the corresponding amide | |
| ES478657A1 (en) | Method for the manufacture of (U,Pu)O2 mixed crystals | |
| KR840001758A (en) | Process for producing stable UO₂ fuel pellets | |
| ES431569A1 (en) | Uranium complex recycling method of purifying uranium liquors | |
| GB1313750A (en) | Manufacture of microspheres by gel precipitation methods | |
| GB1349584A (en) | Process for producing ammonium diuranate | |
| GB1461264A (en) | ||
| GB1285190A (en) | Improvements in ceramic fissile materials | |
| GB1350923A (en) | Method for preparing oxides of fissile materials | |
| GB1365014A (en) | Ceramic defluorination and reduction process | |
| GB1395561A (en) | Process for the production of spherical metal oxide or metal carbide particles | |
| GB1329470A (en) | Method for the preparation of grains | |
| GB1307089A (en) | Method for preparing stable urania-plutonia sols | |
| GB1327652A (en) | Formation of particles eg microspheroidal particles suitable for use in fissile elements and control rods | |
| GB1148228A (en) | Improved urania sol forming method | |
| GB1370928A (en) | Fuel and/or fertile material for nuclear reactors | |
| GB1396604A (en) | Sintering of actinide gel material | |
| GB1302682A (en) | ||
| GB1132129A (en) | Improved thorium oxide material | |
| ES330550A1 (en) | Method for preparation of urania sols | |
| GB1465172A (en) | Process for the preparation of particles containing metal oxides and/or metal carbides | |
| BE785836A (en) | Recovery of plutonium - from fuel scrap contg mixed oxides of uranium and plutonium | |
| ES435998A1 (en) | Preparation of substoichiometric aqueous solutions of an actinide metal salt |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| 414F | Notice of opposition given (sect. 14/1949) | ||
| 414A | Case decided by the comptroller ** specification amended (sect. 14/1949) | ||
| SPA | Amended specification published | ||
| PS | Patent sealed [section 19, patents act 1949] | ||
| PCNP | Patent ceased through non-payment of renewal fee |