| 发明名称 |
METHOD FOR RECOVERING SYNTHETIC ULTRADISPERSED DIAMONDS |
| 摘要 |
FIELD: production of synthetic diamonds. SUBSTANCE: diamond-containing feed charge is subjected to two-step treatment with aqueous solution of nitric acid, namely: first with 50-99-% solution at 80-180 C, and then with 10-40-% solution at 220-280 C. Process is carried out under elevated pressure and it permits to carry out process in liquid phase. Content of recovered diamonds in purified product is 98.2-98.3, that of oxidized forms of carbon is 0.7-0.8%, and that of incombustible residue is 0.9-1.0%. EFFECT: higher efficiency of diamond purification. 1 tblc |
| 申请公布号 |
RU2109683(C1) |
申请公布日期 |
1998.04.27 |
| 申请号 |
RU19960103974 |
申请日期 |
1996.03.05 |
| 申请人 |
AKTSIONERNOE OBSHCHESTVO ZAKRYTOGO TIPA "ALMAZNYJ |
发明人 |
DOLMATOV VALERIJ JUR'EVICH;SUSHCHEV VADIM GEORGIEVICH;MARCHUKOV VALERIJ ALEKSANDROVICH;GUBAREVICH TAT'JANA MIKHAJLOVNA;KORZHENEVSKIJ ALEKSANDR PAVLOVICH;DOLMATOV VALERIJ JUR'EVICH;SUSHCHEV VADIM GEORGIEVICH;MARCHUKOV VALERIJ ALEKSANDROVICH;GUBAREVICH TAT'JANA MIKHAJLOVNA;KORZHENEVSKIJ ALEKSANDR PAVLOVICH |
| 分类号 |
C01B31/06 |
主分类号 |
C01B31/06 |
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