GB1379923A - Separation of particles - Google Patents
Separation of particlesInfo
- Publication number
- GB1379923A GB1379923A GB629572A GB629572A GB1379923A GB 1379923 A GB1379923 A GB 1379923A GB 629572 A GB629572 A GB 629572A GB 629572 A GB629572 A GB 629572A GB 1379923 A GB1379923 A GB 1379923A
- Authority
- GB
- United Kingdom
- Prior art keywords
- luminescence
- thermoluminescence
- diamonds
- feb
- irradiation
- 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
- B07—SEPARATING SOLIDS FROM SOLIDS; SORTING
- B07C—POSTAL SORTING; SORTING INDIVIDUAL ARTICLES, OR BULK MATERIAL FIT TO BE SORTED PIECE-MEAL, e.g. BY PICKING
- B07C5/00—Sorting according to a characteristic or feature of the articles or material being sorted, e.g. by control effected by devices which detect or measure such characteristic or feature; Sorting by manually actuated devices, e.g. switches
- B07C5/34—Sorting according to other particular properties
- B07C5/342—Sorting according to other particular properties according to optical properties, e.g. colour
- B07C5/3425—Sorting according to other particular properties according to optical properties, e.g. colour of granular material, e.g. ore particles, grain
- B07C5/3427—Sorting according to other particular properties according to optical properties, e.g. colour of granular material, e.g. ore particles, grain by changing or intensifying the optical properties prior to scanning, e.g. by inducing fluorescence under UV or x-radiation, subjecting the material to a chemical reaction
Landscapes
- Investigating, Analyzing Materials By Fluorescence Or Luminescence (AREA)
Abstract
1379923 Uses of luminescence and thermoluminescence DE BEERS CONSOLIDATED MINES Ltd 10 Feb 1972 [12 Feb 1971] 6295/72 Heading C4S [Also in Division G1] Particles, e.g. diamonds, are separated from gangue after having been identified by their property of thermoluminescing after irradiation by electromagnetic radiation and subsequent heating. In the method described, the ore mixture is subjected to γ-rays, e.g. from a Co<SP>60</SP> source, which causes luminescence. After irradiation, and subsiding of the luminescence, the mixture is heated, when the diamonds only will thermoluminesce and can be sorted out. If more than one type are present, their thermoluminescence may be analysed spectroscopically and they may be divided according to the method of Application 6296/72. The thermoluminescent light emitted also differs from other luminescent materials present such as zircon.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| ZA710899A ZA71899B (en) | 1971-02-12 | 1971-02-12 | Separation of particles by electromagnetic radiation |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1379923A true GB1379923A (en) | 1975-01-08 |
Family
ID=25563040
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB629572A Expired GB1379923A (en) | 1971-02-12 | 1972-02-10 | Separation of particles |
Country Status (7)
| Country | Link |
|---|---|
| BE (1) | BE779173A (en) |
| GB (1) | GB1379923A (en) |
| IE (1) | IE36074B1 (en) |
| IL (1) | IL38743A (en) |
| NL (1) | NL7201743A (en) |
| OA (1) | OA04077A (en) |
| ZA (1) | ZA71899B (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4693377A (en) * | 1983-05-24 | 1987-09-15 | The British Petroleum Company P.L.C. | Diamond separation using raman scattering |
| EP1746417A1 (en) * | 2005-07-22 | 2007-01-24 | Gsf-Forschungszentrum Für Umwelt Und Gesundheit, Gmbh | Method and device for investigating a mineral sample |
| RU2517613C1 (en) * | 2013-04-29 | 2014-05-27 | Открытое Акционерное Общество "Научно-Производственное Предприятие "Буревестник" | X-ray-luminescent separation of minerals and x-ray-luminescent separator to this end |
| RU2785068C1 (en) * | 2022-02-26 | 2022-12-02 | Общество с ограниченной ответственностью "ИМПУЛЬС-У"(ООО "ИМПУЛЬС-У") | Method and device for x-ray projection separation of mineral raw materials |
-
1971
- 1971-02-12 ZA ZA710899A patent/ZA71899B/en unknown
-
1972
- 1972-02-10 NL NL7201743A patent/NL7201743A/xx not_active Application Discontinuation
- 1972-02-10 GB GB629572A patent/GB1379923A/en not_active Expired
- 1972-02-10 BE BE779173A patent/BE779173A/en unknown
- 1972-02-10 IE IE162/72A patent/IE36074B1/en unknown
- 1972-02-11 IL IL38743A patent/IL38743A/en unknown
- 1972-04-12 OA OA54536A patent/OA04077A/en unknown
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4693377A (en) * | 1983-05-24 | 1987-09-15 | The British Petroleum Company P.L.C. | Diamond separation using raman scattering |
| EP1746417A1 (en) * | 2005-07-22 | 2007-01-24 | Gsf-Forschungszentrum Für Umwelt Und Gesundheit, Gmbh | Method and device for investigating a mineral sample |
| WO2007009554A1 (en) * | 2005-07-22 | 2007-01-25 | GSF-Forschungszentrum für Umwelt und Gesundheit GmbH | Method and device for investigating a mineral sample |
| RU2517613C1 (en) * | 2013-04-29 | 2014-05-27 | Открытое Акционерное Общество "Научно-Производственное Предприятие "Буревестник" | X-ray-luminescent separation of minerals and x-ray-luminescent separator to this end |
| WO2014178753A1 (en) * | 2013-04-29 | 2014-11-06 | Открытое Акционерное Общество "Научно-Производственное Предприятие "Буревестник" | Method for x-ray luminescent separation of minerals and x-ray luminescent separator for carrying out said method |
| CN104884179A (en) * | 2013-04-29 | 2015-09-02 | 布雷维斯特尼克研究与生产公司 | Method for x-ray luminescent separation of minerals and x-ray luminescent separator for carrying out said method |
| GB2527937A (en) * | 2013-04-29 | 2016-01-06 | Res And Production Entpr | Method for x-ray luminescent separation of minerals and x-ray luminescent separator for carrying out said method |
| US9561528B2 (en) | 2013-04-29 | 2017-02-07 | Research And Production Enterprise “Bourevestinik” | Method for X-ray luminescent separation of minerals and X-ray luminescent separator |
| CN104884179B (en) * | 2013-04-29 | 2017-04-12 | 布雷维斯特尼克研究与生产公司 | Method for x-ray luminescent separation of minerals and x-ray luminescent separator for carrying out said method |
| GB2527937B (en) * | 2013-04-29 | 2019-08-07 | Res And Production Enterprise Bourevestnik | A method for X-ray luminescence separation of minerals and an X-ray luminescent sorter for carrying out said method |
| RU2785068C1 (en) * | 2022-02-26 | 2022-12-02 | Общество с ограниченной ответственностью "ИМПУЛЬС-У"(ООО "ИМПУЛЬС-У") | Method and device for x-ray projection separation of mineral raw materials |
Also Published As
| Publication number | Publication date |
|---|---|
| ZA71899B (en) | 1972-07-26 |
| OA04077A (en) | 1979-10-30 |
| IL38743A (en) | 1975-04-25 |
| BE779173A (en) | 1972-05-30 |
| IE36074L (en) | 1972-08-12 |
| NL7201743A (en) | 1972-08-15 |
| IL38743A0 (en) | 1972-04-27 |
| IE36074B1 (en) | 1976-08-04 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PS | Patent sealed [section 19, patents act 1949] | ||
| PE20 | Patent expired after termination of 20 years |