GB1317388A - Method of manufacturing spherical particles - Google Patents
Method of manufacturing spherical particlesInfo
- Publication number
- GB1317388A GB1317388A GB4858471A GB4858471A GB1317388A GB 1317388 A GB1317388 A GB 1317388A GB 4858471 A GB4858471 A GB 4858471A GB 4858471 A GB4858471 A GB 4858471A GB 1317388 A GB1317388 A GB 1317388A
- Authority
- GB
- United Kingdom
- Prior art keywords
- liquid
- droplets
- bath
- inert
- particles
- 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
Classifications
-
- 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
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Inorganic Compounds Of Heavy Metals (AREA)
Abstract
1317388 Making spherical particles BELGONUCLEAIRE SA 19 Oct 1971 [20 Oct 1970 (2)] 48584/71 Heading B5A [Also in Division C1] Spherical particles, especially nuclear fuel particles, are made by projecting a stream of gas which carries liquid droplets on to the surface of a bath at an acute angle thereto, the bath containing a liquid which will cause the droplets to solidify, or to form pellicles. Preferably the bath 7 has a thin surface covering 10 of a further liquid which is inert and has a desnity only slightly lower than that of the main liquid 11; the gas stream issuing from a nozzle 4 produces a wave 8 on the surface of this inert layer and the droplets roll down it to acquire spherical form before entering the liquid of the bath which preferably contains a reagent which will result in the formation of a solid precipitate. For nuclear fuel the droplets are formed from a solution or dispersion of salts of uranium, plutonium, thorium or other transuranian elements. In an example a solution of uranylnitrate is prepared from butylglycol and methylcellulose and an aqueous solution of this with nitric acid is fed through an injector 2 fitted with a stop-valve 3, a gas stream, e.g. of air, nitrogen or argon, being supplied through the outer tube 4 and the angle to the horizontal 6 being less than 45 degrees and preferably between 25 and 35 degrees. The bath contains a layer 10 of amyl alcohol floating on liquid ammonia 11 in a cylindrical bath and the droplets are projected tangentially to the peripheral rim. The droplets form into pellicles as they fall through the liquid ammonia and the reaction then continues until they are transformed into ammonium-diuranate particles which are filtered, dried and sintered in a reducing atmosphere to uranium dioxide. Suitable quantities and dimensions are given for the components. The inert liquid may be other organic alcohols or compounds such as benzene, xylene or heptane.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
BE757712 | 1970-10-20 | ||
BE757713 | 1970-10-20 |
Publications (1)
Publication Number | Publication Date |
---|---|
GB1317388A true GB1317388A (en) | 1973-05-16 |
Family
ID=25656864
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB4858471A Expired GB1317388A (en) | 1970-10-20 | 1971-10-19 | Method of manufacturing spherical particles |
Country Status (2)
Country | Link |
---|---|
FR (1) | FR2111523A5 (en) |
GB (1) | GB1317388A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
AU657282B2 (en) * | 1990-10-19 | 1995-03-09 | Lvmh Recherche | Forming sand particles |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP3159724B2 (en) * | 1991-04-19 | 2001-04-23 | フロイント産業株式会社 | Seamless capsule manufacturing method and apparatus |
-
1971
- 1971-10-19 FR FR7137434A patent/FR2111523A5/fr not_active Expired
- 1971-10-19 GB GB4858471A patent/GB1317388A/en not_active Expired
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
AU657282B2 (en) * | 1990-10-19 | 1995-03-09 | Lvmh Recherche | Forming sand particles |
Also Published As
Publication number | Publication date |
---|---|
FR2111523A5 (en) | 1972-06-02 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
US4397778A (en) | Coprocessed nuclear fuels containing (U, Pu) values as oxides, carbides or carbonitrides | |
US3397257A (en) | Method of forming spheroids of particulate, agglomeration-resistant refractory metal oxides | |
Kiang et al. | Heteromolecular nucleation theory applied to gas-to-particle conversion | |
JP5657381B2 (en) | Method for producing spherical fuel or breeder particles | |
GB1388497A (en) | Process for the separation of components from gas mixtures | |
GB1278885A (en) | An apparatus for removing a gaseous substance from gases | |
GB1525950A (en) | Process for the production of spherical nuclear fuel and/or fertile particles | |
US2868707A (en) | Process of making a neutronic reactor fuel element composition | |
GB1317388A (en) | Method of manufacturing spherical particles | |
GB1350923A (en) | Method for preparing oxides of fissile materials | |
US2824784A (en) | Method for the preparation of stable actinide metal oxide-containing slurries and of the oxides therefor | |
US4193953A (en) | Hydrosol droplet casting process for production of nuclear fuel and breeder material granules | |
GB1274112A (en) | Improvements in or relating to the production of refractory material | |
JP2003509659A (en) | Manufacturing method of MOX type nuclear fuel pellets | |
GB1395561A (en) | Process for the production of spherical metal oxide or metal carbide particles | |
US3697441A (en) | Method for preparing stable actinide peroxide sols | |
GB1069187A (en) | Coating process | |
GB1367925A (en) | Active aluminium oxide and process fof producing same | |
GB1307089A (en) | Method for preparing stable urania-plutonia sols | |
GB1386290A (en) | Manufacture of microglobules | |
GB1240250A (en) | Fuel element for high temperature nuclear reactor | |
Prodi et al. | Radioactively labeled monodisperse aerosols | |
GB1146015A (en) | Improvements in or relating to the manufacture of nuclear fuel | |
US3776988A (en) | Cryochemical method for forming spherical metal oxide particles from metal salt solutions | |
Deptuła et al. | Fabrication of uranium dioxide microspheres by classic and novel sol-gel processes |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
PS | Patent sealed | ||
PLNP | Patent lapsed through nonpayment of renewal fees |