BR8702453A - Processamento de topazio pelo uso de radiacao de neutrons e topazio - Google Patents

Processamento de topazio pelo uso de radiacao de neutrons e topazio

Info

Publication number
BR8702453A
BR8702453A BR8702453A BR8702453A BR8702453A BR 8702453 A BR8702453 A BR 8702453A BR 8702453 A BR8702453 A BR 8702453A BR 8702453 A BR8702453 A BR 8702453A BR 8702453 A BR8702453 A BR 8702453A
Authority
BR
Brazil
Prior art keywords
topazio
neutrons
radiation
processing
topazio radiation
Prior art date
Application number
BR8702453A
Other languages
English (en)
Portuguese (pt)
Inventor
Richard V Fournier
Original Assignee
Richard V Fournier
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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=25340194&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=BR8702453(A) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Richard V Fournier filed Critical Richard V Fournier
Publication of BR8702453A publication Critical patent/BR8702453A/pt

Links

Classifications

    • 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
    • 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
    • C30B29/10—Inorganic compounds or compositions
    • C30B29/34—Silicates

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Inorganic Chemistry (AREA)
  • Crystals, And After-Treatments Of Crystals (AREA)
  • Silver Salt Photography Or Processing Solution Therefor (AREA)
  • Coloring (AREA)
BR8702453A 1986-05-14 1987-05-13 Processamento de topazio pelo uso de radiacao de neutrons e topazio BR8702453A (pt)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US06/863,083 US4749869A (en) 1986-05-14 1986-05-14 Process for irradiating topaz and the product resulting therefrom

Publications (1)

Publication Number Publication Date
BR8702453A true BR8702453A (pt) 1988-02-23

Family

ID=25340194

Family Applications (1)

Application Number Title Priority Date Filing Date
BR8702453A BR8702453A (pt) 1986-05-14 1987-05-13 Processamento de topazio pelo uso de radiacao de neutrons e topazio

Country Status (9)

Country Link
US (1) US4749869A (en:Method)
EP (1) EP0249038B1 (en:Method)
JP (1) JPS62278200A (en:Method)
BR (1) BR8702453A (en:Method)
CA (1) CA1300080C (en:Method)
DE (2) DE3766009D1 (en:Method)
DK (1) DK169572B1 (en:Method)
HK (1) HK33391A (en:Method)
SG (1) SG28291G (en:Method)

Families Citing this family (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5084909A (en) * 1990-03-23 1992-01-28 Pollak Richard D Method of processing gemstones to enhance their color
US5193685A (en) * 1991-06-20 1993-03-16 Trevithick William J Gemstone sorting apparatus and methods
GB2286760A (en) * 1994-02-17 1995-08-30 Atomic Energy Authority Uk Colouration of gemstones
US5477055A (en) * 1994-09-12 1995-12-19 Ostro Gems Method of producing gemstone quality topaz
US5637878A (en) * 1995-02-03 1997-06-10 E-Beam Corporation Process for irradiating gemstones
US5931998A (en) * 1996-10-08 1999-08-03 Tourangeau; Paulette Process for preparing colored mineral powders by chemical treatment
US6022405A (en) * 1996-10-08 2000-02-08 Tourangeau; Paulette Process for preparing colored mineral powders by thermal treatment
US6007616A (en) * 1996-10-08 1999-12-28 Tourangeau; Paulette Process for preparing colored mineral powders by irradiation
US6007617A (en) * 1996-10-08 1999-12-28 Tourangeau; Paulette System of colored mineral powders and its application in modern architectural materials
US5908499A (en) * 1996-10-08 1999-06-01 Tourangeau; Paulette Colored powders prepared by a combination of two thermal, chemical or irradiation processes
US5888918A (en) * 1997-04-25 1999-03-30 Pollak; Richard Method for enhancing the color of minerals useful as gemstones
US6068893A (en) * 1997-07-23 2000-05-30 Delap; James D. Thermally induced color enhancement of natural stone materials
EP1062669B1 (en) * 1998-03-17 2003-12-17 Jacques Pierre Friedrich Sellschop Method of producing carbon with electrically active sites
FR2816629B1 (fr) * 2000-11-14 2003-02-07 Cie Francaise De Renovation Procede et installation de coloration de mineraux par faisceau d'electrons
EP1394293A1 (en) 2002-08-30 2004-03-03 Samir Gupta A process for imparting and enhancement of colours in gemstone minerals and gemstone minerals obtained thereby
US20070110924A1 (en) * 2005-11-14 2007-05-17 Yelon William B Process for improving the color of gemstones and gemstone minerals obtained thereby
CN113717410A (zh) * 2021-08-26 2021-11-30 浙江方圆检测集团股份有限公司 一种基于Co-60产生的γ射线辐照琥珀的改色处理工艺

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2945793A (en) * 1952-09-22 1960-07-19 Dugdale Ronald Arthur Process for coloring diamonds
BE537440A (en:Method) * 1954-04-19
US3173850A (en) * 1955-11-10 1965-03-16 Corning Glass Works Method for stabilizing color of glass exposed to high level x-radiation
ZA797004B (en) * 1979-01-17 1980-11-26 De Beers Ind Diamond Diamond treatment
JPS5740120A (en) * 1980-08-19 1982-03-05 Nippon Air Brake Co Ltd Bearing
JPS5929559A (ja) * 1982-08-10 1984-02-16 川崎重工業株式会社 案内軌道車の走行装置

Also Published As

Publication number Publication date
DE249038T1 (de) 1989-06-22
DK243087A (da) 1988-02-09
EP0249038B1 (en) 1990-11-07
US4749869A (en) 1988-06-07
SG28291G (en) 1991-11-15
DK243087D0 (da) 1987-05-13
DE3766009D1 (de) 1990-12-13
EP0249038A2 (en) 1987-12-16
CA1300080C (en) 1992-05-05
DK169572B1 (da) 1994-12-05
EP0249038A3 (en) 1988-12-07
JPH0549640B2 (en:Method) 1993-07-26
HK33391A (en) 1991-05-10
JPS62278200A (ja) 1987-12-03

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Legal Events

Date Code Title Description
B21A Patent or certificate of addition expired [chapter 21.1 patent gazette]

Free format text: PATENTE EXTINTA EM 13/05/2002