AU8962282A - Diamond sorting using x-rays - Google Patents

Diamond sorting using x-rays

Info

Publication number
AU8962282A
AU8962282A AU89622/82A AU8962282A AU8962282A AU 8962282 A AU8962282 A AU 8962282A AU 89622/82 A AU89622/82 A AU 89622/82A AU 8962282 A AU8962282 A AU 8962282A AU 8962282 A AU8962282 A AU 8962282A
Authority
AU
Australia
Prior art keywords
rays
diamond sorting
diamond
sorting
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.)
Granted
Application number
AU89622/82A
Other versions
AU557022B2 (en
Inventor
Henry Joseph Coppens
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
De Beers Industrial Diamond Division Pty Ltd
Original Assignee
De Beers Industrial Diamond Division Pty Ltd
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.)
Filing date
Publication date
Application filed by De Beers Industrial Diamond Division Pty Ltd filed Critical De Beers Industrial Diamond Division Pty Ltd
Publication of AU8962282A publication Critical patent/AU8962282A/en
Application granted granted Critical
Publication of AU557022B2 publication Critical patent/AU557022B2/en
Anticipated expiration legal-status Critical
Withdrawn - After Issue legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N23/00—Investigating or analysing materials by the use of wave or particle radiation, e.g. X-rays or neutrons, not covered by groups G01N3/00 – G01N17/00, G01N21/00 or G01N22/00
    • G01N23/22—Investigating or analysing materials by the use of wave or particle radiation, e.g. X-rays or neutrons, not covered by groups G01N3/00 – G01N17/00, G01N21/00 or G01N22/00 by measuring secondary emission from the material
    • G01N23/223—Investigating or analysing materials by the use of wave or particle radiation, e.g. X-rays or neutrons, not covered by groups G01N3/00 – G01N17/00, G01N21/00 or G01N22/00 by measuring secondary emission from the material by irradiating the sample with X-rays or gamma-rays and by measuring X-ray fluorescence
    • 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
    • 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
    • B07C5/36—Sorting apparatus characterised by the means used for distribution
    • B07C5/363—Sorting apparatus characterised by the means used for distribution by means of air
    • B07C5/365—Sorting apparatus characterised by the means used for distribution by means of air using a single separation means
    • B07C5/366—Sorting apparatus characterised by the means used for distribution by means of air using a single separation means during free fall of the articles
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N2223/00—Investigating materials by wave or particle radiation
    • G01N2223/07—Investigating materials by wave or particle radiation secondary emission
    • G01N2223/076—X-ray fluorescence

Landscapes

  • Physics & Mathematics (AREA)
  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Biochemistry (AREA)
  • General Health & Medical Sciences (AREA)
  • General Physics & Mathematics (AREA)
  • Immunology (AREA)
  • Pathology (AREA)
  • Analysing Materials By The Use Of Radiation (AREA)
  • Sorting Of Articles (AREA)
AU89622/82A 1981-10-23 1982-10-20 Diamond sorting using x-rays Withdrawn - After Issue AU557022B2 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
ZA817366 1981-10-23
ZA817366 1981-10-23

Publications (2)

Publication Number Publication Date
AU8962282A true AU8962282A (en) 1983-04-28
AU557022B2 AU557022B2 (en) 1986-12-04

Family

ID=25575714

Family Applications (1)

Application Number Title Priority Date Filing Date
AU89622/82A Withdrawn - After Issue AU557022B2 (en) 1981-10-23 1982-10-20 Diamond sorting using x-rays

Country Status (2)

Country Link
AU (1) AU557022B2 (en)
GB (1) GB2107861B (en)

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2121535B (en) * 1982-06-02 1986-04-30 Anglo Amer Corp South Africa Detector for use in sorting system
GB8314340D0 (en) * 1983-05-24 1983-06-29 British Petroleum Co Plc Separation technique
GB2215041A (en) * 1988-01-29 1989-09-13 Argyle Diamond Sales Sorting and/or confirming the identity of gems
US5206699A (en) 1988-05-06 1993-04-27 Gersan Establishment Sensing a narrow frequency band of radiation and gemstones
GB9211734D0 (en) * 1992-06-03 1992-07-15 Gersan Ets Prospecting for diamonds
GB2282882B (en) * 1992-06-03 1995-11-15 Gersan Ets Detecting diamonds in a rock sample
AU719072B2 (en) * 1995-04-07 2000-05-04 Technological Resources Pty Limited A method and an apparatus for analysing a material
AUPN226295A0 (en) * 1995-04-07 1995-05-04 Technological Resources Pty Limited A method and an apparatus for analysing a material
CA2245141C (en) * 1997-08-13 2006-07-25 De Beers Consolidated Mines Limited On-line diamond detection
GB2382135A (en) * 2001-11-20 2003-05-21 Spectral Fusion Technologies L X-ray apparatus for grading meat samples according to a predetermined meat to fat ratio
CN103913477B (en) * 2014-04-16 2016-06-15 国家黄金钻石制品质量监督检验中心 The place of production authentication method of a kind of Taishan jade ranges

Also Published As

Publication number Publication date
GB2107861B (en) 1985-08-14
AU557022B2 (en) 1986-12-04
GB2107861A (en) 1983-05-05

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