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2 154 684

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IPC

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Application

99100872/02, 1999-01-13

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Start date

1999-01-13

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Actual filing date

1999-01-13

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Published

2000-08-20

(72)

Inventor

Nazarov Ju.N.Tuljakov N.V.Gorbatenko V.P.Karmannikov V.P.Draenkov A.N.Tatarintsev A.N.Kutilov V.A.Kovalev V.V.Kleandrov V.T.Jaushev M.G.Ozhigov A.V.

(73)

Holder

Ooo Nauchno-Proizvodstvennaja Firma

METHOD OF EXTRACTION OF PLATINUM METALS, GOLD AND SILVER INTO SOLUTION Russian patent published in 2000 - IPC

Abstract RU 2154684 C1

FIELD: technology of extraction of platinum and noble metals from various raw materials. SUBSTANCE: starting raw material is kept in inert gas atmosphere at 650 to 1000 C for 5 to 200 min. Then it is cooled in inert atmosphere and is subjected to hydraulic chlorination with hydrochloric acid and chlorine in presence of nitrate ion in the amount of 0.01 to 3.0% of volume of solution. In case raw material contains highly volatile or sulfur-containing compounds, oxidizing roasting shall be performed before keeping the material in inert atmosphere. EFFECT: facilitated process of extraction of noble components. 4 cl, 3 ex

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RU 2 154 684 C1

Authors

Nazarov Ju.N.

Tuljakov N.V.

Gorbatenko V.P.

Karmannikov V.P.

Draenkov A.N.

Tatarintsev A.N.

Kutilov V.A.

Kovalev V.V.

Kleandrov V.T.

Jaushev M.G.

Ozhigov A.V.

Dates

2000-08-20—Published

1999-01-13—Filed