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2 034 781

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C1

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IPC

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Application

5060219/26, 1992-08-27

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Actual filing date

1992-08-27

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Published

1995-05-10

(72)

Inventor

Avdeev V.V.Nikol'Skaja I.V.Voronkina A.V.Bubnov V.K.Zajachkovskij A.A.Kapkanshchikov A.M.Luchina L.P.Ezhov A.A.Shkirov V.A.

(73)

Holder

Avdeev Viktor Vasil'Evich

METHOD OF DIAMOND-GRAPHITE MATERIAL PROCESSING Russian patent published in 1995 - IPC

Abstract RU 2034781 C1

FIELD: diamond extraction. SUBSTANCE: parental material is treated with reagent providing formation of incorporation compound. Prepared product is subjected for thermic treatment for conversion of incorporation compound to expanded graphite by heating its at the rate 50-500 degree/s up to 200-800 C, and diamond and expanded graphite were separated in aqueous medium by density. A mixture of aluminium chloride with chlorine or ferrous chloride, or potassium bichromate with sulfuric acid were used as a reagent. EFFECT: improved method of processing. 3 cl

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RU 2 034 781 C1

Authors

Avdeev V.V.

Nikol'Skaja I.V.

Voronkina A.V.

Bubnov V.K.

Zajachkovskij A.A.

Kapkanshchikov A.M.

Luchina L.P.

Ezhov A.A.

Shkirov V.A.

Dates

1995-05-10—Published

1992-08-27—Filed

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