RU2003106575A - PRODUCTION OF DIAMONDS UNDER THE INFLUENCE OF HIGH PRESSURE AND HIGH TEMPERATURE - Google Patents

PRODUCTION OF DIAMONDS UNDER THE INFLUENCE OF HIGH PRESSURE AND HIGH TEMPERATURE

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Publication number
RU2003106575A
RU2003106575A RU2003106575/15A RU2003106575A RU2003106575A RU 2003106575 A RU2003106575 A RU 2003106575A RU 2003106575/15 A RU2003106575/15 A RU 2003106575/15A RU 2003106575 A RU2003106575 A RU 2003106575A RU 2003106575 A RU2003106575 A RU 2003106575A
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RU
Russia
Prior art keywords
diamond
pressure
elevated
elevated temperature
transmitting medium
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RU2003106575/15A
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Russian (ru)
Other versions
RU2279908C2 (en
Inventor
Томас Р. ЭНТОНИ
Уилльям Ф. БАНХОЛЬЦЕР
Джон К. КЭЙСИ
Явуз КАДИОГЛУ
Алан К. СМИТ
Уилльям Э. ДЖЕКСОН
Суреш С. ВАГАРАЛИ
Стивен В. УЭББ
Original Assignee
Дженерал Электрик Компани
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Publication of RU2003106575A publication Critical patent/RU2003106575A/en
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Publication of RU2279908C2 publication Critical patent/RU2279908C2/en

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Claims (21)

1. Способ изменения цвета недекоративно окрашенного природного алмаза, содержащий стадии, на которых a)удаляют материал с природного алмаза, b) помещают упомянутый природный алмаз в передающую давление среду, c) уплотняют упомянутую передающую давление среду в брикет, d) подвергают упомянутый брикет воздействию повышенного давления и повышенной температуры в области графита или области образования алмаза фазовой диаграммы углерода в течение времени, достаточного для изменения цвета упомянутого алмаза, и e) извлекают упомянутый алмаз.1. A method for changing the color of an undecorated colored natural diamond, comprising the steps of: a) removing material from natural diamond, b) placing said natural diamond in a pressure transmitting medium, c) compacting said pressure transmitting medium in a briquette, d) exposing said briquette elevated pressure and elevated temperature in the graphite region or diamond formation region of the carbon phase diagram for a time sufficient to change the color of said diamond, and e) said diamond is removed. 2. Способ по п.1, в котором упомянутое удаление материала содержит удаление достаточного количества материала с внешней части упомянутого алмаза для уменьшения приповерхностных дефектов и неоднородностей.2. The method according to claim 1, wherein said material removal comprises removing a sufficient amount of material from the outer part of said diamond to reduce surface defects and heterogeneities. 3. Способ по п.2, в котором упомянутое удаление материала содержит обрезку.3. The method according to claim 2, in which the said removal of material contains trim. 4. Способ по п.2, в котором упомянутое удаление материала содержит шлифовку.4. The method according to claim 2, wherein said material removal comprises grinding. 5. Способ по п.2, в котором упомянутое удаление материала содержит обрезку с получением по меньшей мере двух граней на упомянутом алмазе.5. The method according to claim 2, wherein said material removal comprises cropping to obtain at least two faces on said diamond. 6. Способ по п.2, в котором упомянутое воздействие повышенного давления содержит передачу давления на упомянутый брикет через расположенные напротив друг друга поршни и создание сжимающих напряжений, а упомянутое извлечение алмаза включает в себя разведение упомянутых расположенных напротив друг друга поршней, причем упомянутое разведение упомянутых поршней создает растягивающее напряжение в упомянутом алмазе, и упомянутый природный алмаз формуют путем удаления материала для уменьшения упомянутых напряжений.6. The method according to claim 2, in which said pressure action comprises transmitting pressure to said briquette through opposing pistons and creating compressive stresses, and said extraction of diamond includes diluting said opposed pistons, said dilution of said the pistons create tensile stress in said diamond, and said natural diamond is formed by removing material to reduce said stresses. 7. Способ по п.2, в котором упомянутый недекоративный окрашенный природный алмаз представляет собой алмаз типа Ia или типа Ib.7. The method according to claim 2, in which said non-decorative colored natural diamond is a diamond of type Ia or type Ib. 8. Способ по п.2, в котором упомянутый недекоративно окрашенный природный алмаз типа IIa или типа IIb.8. The method according to claim 2, in which said non-decorative colored natural diamond type IIa or type IIb. 9. Способ по п.2, в котором извлеченный алмаз является бесцветным.9. The method according to claim 2, in which the extracted diamond is colorless. 10. Способ по п.2, в котором извлеченный алмаз является окрашенным.10. The method according to claim 2, in which the extracted diamond is colored. 11. Способ по п.2, в котором упомянутая повышенная температура находится в интервале от около 1500 до 3500°С, а упомянутое повышенное давление находится в интервале от около 10 до около 100 кбар.11. The method according to claim 2, in which said elevated temperature is in the range from about 1500 to 3500 ° C, and said elevated pressure is in the range from about 10 to about 100 kbar. 12. Способ по п.11, в котором упомянутое повышенное давление находится в интервале от около 20 до около 80 кбар.12. The method according to claim 11, in which the aforementioned increased pressure is in the range from about 20 to about 80 kbar. 13. Способ по п.2, в котором упомянутый извлеченный алмаз подвергают стадии (с) несколько раз.13. The method according to claim 2, in which the said extracted diamond is subjected to stage (C) several times. 14. Способ по п.2, в котором упомянутая передающая давление среда термически и химически стабильна при ВД/ВТ и выбрана из группы, состоящей из соли, оксида и графита.14. The method according to claim 2, in which the aforementioned pressure transmitting medium is thermally and chemically stable at VD / VT and selected from the group consisting of salt, oxide and graphite. 15. Способ по п.2, в котором упомянутая передающая давление среда представляет собой соль, выбранную из группы, состоящей из хлорида натрия, йодида натрия, бромида натрия, хлорида калия, йодида калия, бромида калия, хлорида кальция, йодида кальция и бромида кальция.15. The method according to claim 2, wherein said pressure transmitting medium is a salt selected from the group consisting of sodium chloride, sodium iodide, sodium bromide, potassium chloride, potassium iodide, potassium bromide, calcium chloride, calcium iodide and calcium bromide . 16. Способ по п.15, в котором упомянутая передающая давление среда выбрана из группы, состоящей из оксида магния, оксида кальция или их смесей.16. The method of claim 15, wherein said pressure transfer medium is selected from the group consisting of magnesium oxide, calcium oxide, or mixtures thereof. 17. Способ по п.15, в котором упомянутая передающая давление среда представляет собой графит.17. The method of claim 15, wherein said pressure transmitting medium is graphite. 18. Способ по п.2, в котором упомянутые повышенную температуру и повышенное давление поддерживают в течение времени от 30 с до 96 ч.18. The method according to claim 2, in which the aforementioned elevated temperature and elevated pressure support for a period of time from 30 s to 96 hours 19. Способ по п.2, в котором упомянутые повышенную температуру и повышенное давление поддерживают в течение времени от 5 мин до 24 ч.19. The method according to claim 2, wherein said elevated temperature and elevated pressure are maintained for a period of time from 5 minutes to 24 hours. 20. Способ по п.2, в котором упомянутые повышенную температуру и повышенное давление поддерживают в течение времени от около 5 мин до около 1 ч.20. The method according to claim 2, wherein said elevated temperature and elevated pressure are maintained for a period of time from about 5 minutes to about 1 hour. 21. Способ по п.2, в котором упомянутая черновая огранка содержит от 1 до 100 граней на поверхности упомянутого алмаза.21. The method according to claim 2, in which said rough cut contains from 1 to 100 faces on the surface of said diamond.
RU2003106575/15A 2000-08-11 2001-08-08 Production of diamonds under action of the high pressure and temperature RU2279908C2 (en)

Applications Claiming Priority (2)

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US22448500P 2000-08-11 2000-08-11
US60/224,485 2000-08-11

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US (1) US7241434B2 (en)
EP (1) EP1315558B1 (en)
JP (1) JP2004505765A (en)
KR (1) KR100812112B1 (en)
CN (3) CN1772362A (en)
AT (1) ATE342767T1 (en)
AU (1) AU2001281132A1 (en)
DE (1) DE60123979D1 (en)
HK (1) HK1062543A1 (en)
IL (2) IL154390A0 (en)
RU (1) RU2279908C2 (en)
WO (1) WO2002013958A2 (en)
ZA (1) ZA200301469B (en)

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