发明名称 |
METHOD OF MAKING DIAMOND POWDERS FROM FINE DIAMOND-BEARING CONCENTRATES |
摘要 |
FIELD: process engineering.SUBSTANCE: invention relates to production of fine diamond powders from diamond-bearing concentrates and may be used in mining. Proposed method comprises grain size screen grading of concentrates and separate dispersion of every group of grains, and size re-grading to isolate powder of grain size subjected to crushing. Said separate dispersion is carried out by crushing-and-abrading effects to isolate waste product. Said size re-grading is performed with combined coarse product after dispersion. Mean products of pre-grading and re-grading are jointly dispersed and re-graded to isolate fine products. Said fine products are dispersed to isolate waste products. Isolated diamond powders are subjected to chemical cleaning by hydrochloric acid and chromium mix.EFFECT: higher quality.2 cl, 5 tbl |
申请公布号 |
RU2468869(C2) |
申请公布日期 |
2012.12.10 |
申请号 |
RU20110108135 |
申请日期 |
2011.03.02 |
申请人 |
AKTSIONERNAJA KOMPANIJA "ALROSA" (OTKRYTOE AKTSIONERNOE OBSHCHESTVO) |
发明人 |
SEREDKINA ELENA VASIL'EVNA;TARASOVA LARISA GENNAD'EVNA |
分类号 |
B02C23/16 |
主分类号 |
B02C23/16 |
代理机构 |
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地址 |
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