发明名称 |
METHOD OF CHANGE OF DIAMOND COLOR AT HIGH TEMPERATURE AND HIGH PRESSURE |
摘要 |
FIELD: treatment of diamonds. ^ SUBSTANCE: proposed method of change of diamond color includes the following stages: (i) forming reaction mass at presence of diamond in pressure-transmitting medium fully surrounds the diamond; (ii) subjecting the reaction mass to action of high temperature and pressure during required period of time; proposed diamond is brown diamond, type IIa; its color is changed from brown to colorless by subjecting the reaction mass to action of temperature of from 2200°C to 2600°C at pressure of 7.6 Gpa to 9 Gpa. ^ EFFECT: possibility of keeping diamond intact during treatment. ^ 46 cl, 4 dwg, 1 ex |
申请公布号 |
RU2293603(C2) |
申请公布日期 |
2007.02.20 |
申请号 |
RU20020129107 |
申请日期 |
2001.04.02 |
申请人 |
EHLEMENT SIKS TEKNOLODZHIZ (PTI) LTD. |
发明人 |
BERNS ROBERT CHARL'Z;FISHER DEHVID;SPITS REJMOND EHNTONI |
分类号 |
B01J3/06;C01B31/06;C30B29/04;C30B33/00 |
主分类号 |
B01J3/06 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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