DE3062484D1 - A method of reducing the colour of diamond - Google Patents

A method of reducing the colour of diamond

Info

Publication number
DE3062484D1
DE3062484D1 DE8080300144T DE3062484T DE3062484D1 DE 3062484 D1 DE3062484 D1 DE 3062484D1 DE 8080300144 T DE8080300144 T DE 8080300144T DE 3062484 T DE3062484 T DE 3062484T DE 3062484 D1 DE3062484 D1 DE 3062484D1
Authority
DE
Germany
Prior art keywords
colour
diamond
reducing
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
Application number
DE8080300144T
Other languages
English (en)
Inventor
Trevor Evans
Brian Philip Allen
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
Application granted granted Critical
Publication of DE3062484D1 publication Critical patent/DE3062484D1/de
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G21—NUCLEAR PHYSICS; NUCLEAR ENGINEERING
    • G21H—OBTAINING ENERGY FROM RADIOACTIVE SOURCES; APPLICATIONS OF RADIATION FROM RADIOACTIVE SOURCES, NOT OTHERWISE PROVIDED FOR; UTILISING COSMIC RADIATION
    • G21H5/00—Applications of radiation from radioactive sources or arrangements therefor, not otherwise provided for 
    • 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
    • B01J3/00—Processes of utilising sub-atmospheric or super-atmospheric pressure to effect chemical or physical change of matter; Apparatus therefor
    • B01J3/06—Processes using ultra-high pressure, e.g. for the formation of diamonds; Apparatus therefor, e.g. moulds or dies
    • B01J3/062—Processes using ultra-high pressure, e.g. for the formation of diamonds; Apparatus therefor, e.g. moulds or dies characterised by the composition of the materials to be processed
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
    • C01B32/00—Carbon; Compounds thereof
    • C01B32/25—Diamond
    • C01B32/28—After-treatment, e.g. purification, irradiation, separation or recovery
    • C—CHEMISTRY; METALLURGY
    • C30—CRYSTAL GROWTH
    • C30B—SINGLE-CRYSTAL GROWTH; UNIDIRECTIONAL SOLIDIFICATION OF EUTECTIC MATERIAL OR UNIDIRECTIONAL DEMIXING OF EUTECTOID MATERIAL; REFINING BY ZONE-MELTING OF MATERIAL; PRODUCTION OF A HOMOGENEOUS POLYCRYSTALLINE MATERIAL WITH DEFINED STRUCTURE; SINGLE CRYSTALS OR HOMOGENEOUS POLYCRYSTALLINE MATERIAL WITH DEFINED STRUCTURE; AFTER-TREATMENT OF SINGLE CRYSTALS OR A HOMOGENEOUS POLYCRYSTALLINE MATERIAL WITH DEFINED STRUCTURE; APPARATUS THEREFOR
    • C30B29/00—Single crystals or homogeneous polycrystalline material with defined structure characterised by the material or by their shape
    • C30B29/02—Elements
    • C30B29/04—Diamond
    • C—CHEMISTRY; METALLURGY
    • C30—CRYSTAL GROWTH
    • C30B—SINGLE-CRYSTAL GROWTH; UNIDIRECTIONAL SOLIDIFICATION OF EUTECTIC MATERIAL OR UNIDIRECTIONAL DEMIXING OF EUTECTOID MATERIAL; REFINING BY ZONE-MELTING OF MATERIAL; PRODUCTION OF A HOMOGENEOUS POLYCRYSTALLINE MATERIAL WITH DEFINED STRUCTURE; SINGLE CRYSTALS OR HOMOGENEOUS POLYCRYSTALLINE MATERIAL WITH DEFINED STRUCTURE; AFTER-TREATMENT OF SINGLE CRYSTALS OR A HOMOGENEOUS POLYCRYSTALLINE MATERIAL WITH DEFINED STRUCTURE; APPARATUS THEREFOR
    • C30B33/00—After-treatment of single crystals or homogeneous polycrystalline material with defined structure
    • 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
    • B01J2203/00—Processes utilising sub- or super atmospheric pressure
    • B01J2203/06—High pressure synthesis
    • B01J2203/0605—Composition of the material to be processed
    • B01J2203/062—Diamond
    • 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
    • B01J2203/00—Processes utilising sub- or super atmospheric pressure
    • B01J2203/06—High pressure synthesis
    • B01J2203/065—Composition of the material produced
    • B01J2203/0655—Diamond
    • 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
    • B01J2203/00—Processes utilising sub- or super atmospheric pressure
    • B01J2203/06—High pressure synthesis
    • B01J2203/0675—Structural or physico-chemical features of the materials processed
    • B01J2203/0695—Colour change

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Engineering & Computer Science (AREA)
  • Metallurgy (AREA)
  • Materials Engineering (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Inorganic Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Geology (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Physics & Mathematics (AREA)
  • General Engineering & Computer Science (AREA)
  • High Energy & Nuclear Physics (AREA)
  • Crystals, And After-Treatments Of Crystals (AREA)
  • Carbon And Carbon Compounds (AREA)
DE8080300144T 1979-01-17 1980-01-15 A method of reducing the colour of diamond Expired DE3062484D1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB7901728 1979-01-17

Publications (1)

Publication Number Publication Date
DE3062484D1 true DE3062484D1 (en) 1983-05-05

Family

ID=10502575

Family Applications (1)

Application Number Title Priority Date Filing Date
DE8080300144T Expired DE3062484D1 (en) 1979-01-17 1980-01-15 A method of reducing the colour of diamond

Country Status (6)

Country Link
US (1) US4399364A (de)
EP (1) EP0014528B1 (de)
JP (1) JPS55126521A (de)
DE (1) DE3062484D1 (de)
IL (1) IL59047A (de)
ZA (1) ZA797004B (de)

Families Citing this family (24)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4741529A (en) * 1985-01-25 1988-05-03 Bio-Dynamic Innovations, Inc. Exercise apparatus
IL81537A (en) * 1986-02-24 1991-05-12 De Beers Ind Diamond Method and synthetic diamond detector for detection of nuclear radiation
US4749869A (en) * 1986-05-14 1988-06-07 Anil Dholakia Process for irradiating topaz and the product resulting therefrom
EP0275063A3 (de) * 1987-01-12 1992-05-27 Sumitomo Electric Industries Limited Diamanthaltiges lichtausstrahlendes Element und Verfahren zu seiner Herstellung
JP2571795B2 (ja) * 1987-11-17 1997-01-16 住友電気工業株式会社 紫色ダイヤモンドおよびその製造方法
JP2571808B2 (ja) * 1988-01-13 1997-01-16 住友電気工業株式会社 緑色ダイヤモンド及びその製造方法
JPH0288498A (ja) * 1988-06-13 1990-03-28 Sumitomo Electric Ind Ltd ダイヤモンドレーザ結晶およびその作製方法
US4985226A (en) * 1988-06-20 1991-01-15 Sumitomo Electric Industries, Ltd. Hole-burning material and production thereof
US5328855A (en) * 1991-07-25 1994-07-12 Matsushita Electric Industrial Co., Ltd. Formation of semiconductor diamond
US5888918A (en) * 1997-04-25 1999-03-30 Pollak; Richard Method for enhancing the color of minerals useful as gemstones
US6692714B2 (en) 1997-10-17 2004-02-17 Suresh Shankarappa Vagarali High pressure/high temperature production of colorless and fancy-colored diamonds
DE69930144D1 (de) * 1998-06-24 2006-04-27 Jacques Pierre Fried Sellschop Methode zur änderung der farbe eines materials
JP4294140B2 (ja) 1999-01-27 2009-07-08 有限会社アプライドダイヤモンド ダイヤモンド薄膜の改質方法及びダイヤモンド薄膜の改質及び薄膜形成方法並びにダイヤモンド薄膜の加工方法
DE19915896C2 (de) * 1999-04-08 2003-03-06 Herman A C Dierckx Verfahren zum Entfärben von Diamanten
DE60027441T2 (de) 1999-08-25 2006-12-21 Bellataire International LLC, Worthington Hochtemperatur/hochdruck-verfahren zur herstellung von gefärbten diamanten
IL154390A0 (en) 2000-08-11 2003-09-17 Gen Electric High pressure and high temperature production of diamonds
RU2328563C2 (ru) * 2002-09-06 2008-07-10 Элемент Сикс Лимитед Цветные алмазы
US20050249655A1 (en) * 2003-01-08 2005-11-10 Vagarali Suresh S High pressure/high temperature production of colorless and fancy-colored diamonds
US8110171B1 (en) * 2005-11-17 2012-02-07 Rajneesh Bhandari Method for decolorizing diamonds
CN101254917B (zh) * 2007-12-14 2010-06-09 武汉理工大学 提高金刚石微粉品质的激光加工方法
KR101444623B1 (ko) 2010-06-03 2014-09-26 엘리멘트 식스 리미티드 다이아몬드 공구
US8961920B1 (en) 2011-04-26 2015-02-24 Us Synthetic Corporation Methods of altering the color of a diamond by irradiation and high-pressure/high-temperature processing
GB2492822A (en) * 2011-07-14 2013-01-16 Element Six Ltd Modifying diamond components by irradiation
DE112020003569A5 (de) 2019-07-25 2022-04-28 Quantum Technologies UG (haftungsbeschränkt) NV-Zentrum basierender mikrowellenfreier Quantensensor und dessen Anwendungen und Ausprägungen

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE489221A (de) * 1948-05-31
US2945793A (en) * 1952-09-22 1960-07-19 Dugdale Ronald Arthur Process for coloring diamonds
BE537440A (de) * 1954-04-19
US4124690A (en) * 1976-07-21 1978-11-07 General Electric Company Annealing type Ib or mixed type Ib-Ia natural diamond crystal
GB1588445A (en) * 1977-05-26 1981-04-23 Nat Res Dev Toughening diamond

Also Published As

Publication number Publication date
JPS6243960B2 (de) 1987-09-17
EP0014528A1 (de) 1980-08-20
ZA797004B (en) 1980-11-26
US4399364A (en) 1983-08-16
IL59047A (en) 1983-02-23
JPS55126521A (en) 1980-09-30
EP0014528B1 (de) 1983-03-30
IL59047A0 (en) 1980-03-31

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