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2 154 690

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IPC

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Application

2000101009/02, 2000-01-17

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Start date

2000-01-17

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Actual filing date

2000-01-17

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Published

2000-08-20

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Inventor

Kozhevnikov G.N.(Ru)Vodop'Janov A.G.(Ru)Koveshnikov A.V.(Ru)Gurin Vladimir DmitrievichSigedin Vitalij NikolaevichMironenko Viktor NikolaevichAranovich Viktor L'VovichRudenko Boris Ivanovich

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Aozt Ptp

METHOD OF EXTRACTION OF MOLYBDENUM TRIOXIDE FROM CINDER Russian patent published in 2000 - IPC

Abstract RU 2154690 C1

FIELD: nonferrous metallurgy; production of molybdenum trioxide. SUBSTANCE: method employs cinders formed at oxidizing roasting of molybdenum middlings with granulated quartz sand. Method includes sublimation of cinders at temperature of 1150 to 1200 C and residual pressure of 1 to 15 mm Hg during 1.5 to 4.0 hours and condensation of vapor formed during this process. EFFECT: increase of degree of sublimation of molybdenum to 99.4%; enhanced purity of sublimated molybdenum trioxide; short technological cycle. 1 tbl, 3 ex

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RU 2 154 690 C1

Authors

Kozhevnikov G.N.(Ru)

Vodop'Janov A.G.(Ru)

Koveshnikov A.V.(Ru)

Gurin Vladimir Dmitrievich

Sigedin Vitalij Nikolaevich

Mironenko Viktor Nikolaevich

Aranovich Viktor L'Vovich

Rudenko Boris Ivanovich

Dates

2000-08-20—Published

2000-01-17—Filed