METHOD OF CLEANING OF SYNTHETIC ULTRADISPERSED DIAMONDS

methods of cleaning of synthetic ultradispersed diamonds in withdrawal of diamonds from product of detonation synthesis. SUBSTANCE: 100 g of diamond mixture containing about 40 wt.% of diamonds and the rest in form of nondiamond carbon and metal impurities are placed on pan of electric furnace. Mixt...

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Bibliographic Details
Main Authors MOLOSTOV I.N, KULAGINA L.S, LARIONOVA I.S, KOMAROV V.F
Format Patent
LanguageEnglish
Russian
Published 10.06.2001
Edition7
Subjects
CHEMISTRY
COMPOUNDS THEREOF
INORGANIC CHEMISTRY
METALLURGY
NON-METALLIC ELEMENTS
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Summary:methods of cleaning of synthetic ultradispersed diamonds in withdrawal of diamonds from product of detonation synthesis. SUBSTANCE: 100 g of diamond mixture containing about 40 wt.% of diamonds and the rest in form of nondiamond carbon and metal impurities are placed on pan of electric furnace. Mixture is heated up to 380-440 C at rate of 2.5-10 C/min and held at maximum temperature for 2-4 h. Diamond yield amounts to 38.5-39.1 wt.%, content of nondiamond carbon is 0.1-0.8 wt.%. EFFECT: simple method with use of no toxic media. 2 ex
Bibliography:Application Number: RU19990107121