GB1328435A - Process for the preparation of spherical particles - Google Patents
Process for the preparation of spherical particlesInfo
- Publication number
- GB1328435A GB1328435A GB2332571*A GB2332571A GB1328435A GB 1328435 A GB1328435 A GB 1328435A GB 2332571 A GB2332571 A GB 2332571A GB 1328435 A GB1328435 A GB 1328435A
- Authority
- GB
- United Kingdom
- Prior art keywords
- cores
- fines
- powder
- screen
- spherical 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
- 239000012798 spherical particle Substances 0.000 title abstract 3
- 239000000843 powder Substances 0.000 abstract 5
- 238000005056 compaction Methods 0.000 abstract 1
- 238000004519 manufacturing process Methods 0.000 abstract 1
- 238000010298 pulverizing process Methods 0.000 abstract 1
- 238000012216 screening Methods 0.000 abstract 1
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
- B01J2/18—Processes or devices for granulating materials, e.g. fertilisers in general; Rendering particulate materials free flowing in general, e.g. making them hydrophobic using a vibrating apparatus
-
- 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
-
- 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)
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Ceramic Engineering (AREA)
- Plasma & Fusion (AREA)
- General Engineering & Computer Science (AREA)
- High Energy & Nuclear Physics (AREA)
- Inorganic Compounds Of Heavy Metals (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Abstract
1328435 Spherical particles SOC DE FABRICATION D'ELEMENTS CATALYTIQUES 19 April 1971 [6 March 1970] 23325/71 Heading B5A [Also in Divisions C1 and G6] Spherical particles are prepared from powder by disposing cores of the powder on a vibrating screen of mesh larger than the fines of the powder but smaller than the cores and continuously dropping or projecting fines of the powder on to the cores on the screen, thereby increasing the size of the cores. The fines may be projected on to the cores by disposing the screen in a container containing the fines and subjecting the container to repeated impacts. Alternatively, the fines may be dropped on to the cores from a second vibrating screen held over the first screen. The cores may have been obtained by compacting fines of the powder e.g. to a size of 40-800 8 and a S.A. of 2 m<SP>2</SP>/g, under a pressure of 100-2000 bars, and then force screened to a predetermined size. The screening residues e.g. 10-50 Á, may be recycled to the compaction step or as fines to the spheroidization step, after pulverization if necessary.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR7008209A FR2082224A5 (en) | 1970-03-06 | 1970-03-06 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1328435A true GB1328435A (en) | 1973-08-30 |
Family
ID=9051872
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB2332571*A Expired GB1328435A (en) | 1970-03-06 | 1971-04-19 | Process for the preparation of spherical particles |
Country Status (6)
| Country | Link |
|---|---|
| BE (1) | BE763829A (en) |
| CH (1) | CH539480A (en) |
| DE (1) | DE2110571B2 (en) |
| FR (1) | FR2082224A5 (en) |
| GB (1) | GB1328435A (en) |
| SE (1) | SE371652B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113941703A (en) * | 2021-10-18 | 2022-01-18 | 合肥工业大学 | A method for preparing spherical bronze powder for 3D printing by microwave heating |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN119345995B (en) * | 2024-10-25 | 2025-06-24 | 浙江经大饲料股份有限公司 | A particle size adjustable ring die pelletizing machine and particle size adjustment method |
-
1970
- 1970-03-06 FR FR7008209A patent/FR2082224A5/fr not_active Expired
-
1971
- 1971-03-05 SE SE7102855A patent/SE371652B/xx unknown
- 1971-03-05 CH CH328571A patent/CH539480A/en not_active IP Right Cessation
- 1971-03-05 BE BE763829A patent/BE763829A/en unknown
- 1971-03-05 DE DE2110571A patent/DE2110571B2/en active Granted
- 1971-04-19 GB GB2332571*A patent/GB1328435A/en not_active Expired
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113941703A (en) * | 2021-10-18 | 2022-01-18 | 合肥工业大学 | A method for preparing spherical bronze powder for 3D printing by microwave heating |
Also Published As
| Publication number | Publication date |
|---|---|
| SE371652B (en) | 1974-11-25 |
| FR2082224A5 (en) | 1971-12-10 |
| DE2110571B2 (en) | 1973-12-13 |
| DE2110571A1 (en) | 1971-09-23 |
| BE763829A (en) | 1971-08-02 |
| CH539480A (en) | 1973-07-31 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PS | Patent sealed | ||
| PCNP | Patent ceased through non-payment of renewal fee |