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2 037 763

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C1

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IPC

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Application

4843275/02, 1990-06-27

(22)

Actual filing date

1990-06-27

(45)

Published

1995-06-19

(72)

Inventor

Andreev M.E.Vanyshev V.A.Golenko V.P.Poljanskij E.V.Jarotskaja E.G.Jarotskij V.G.

(73)

Holder

Vserossijskij Nauchno-Issledovatel'Skij Institut Sinteza Mineral'Nogo Syr'Ja

PLANT WITH SILICIDEMOLYBDENUM HEATERS IN MEDIUM OF GASEOUS FLUORIDES Russian patent published in 1995 - IPC

Abstract RU 2037763 C1

FIELD: high-temperature roasting. SUBSTANCE: plant has heating chamber 1 with heat insulation 2 and U-shaped silicidemolybdenum heaters 3 mounted in vertical passages on lateral sides of chamber 1. Heaters 3 are isolated from working space of chamber 1 with source of gaseous fluorides by vertical ceramic screens 5 at clearance 6 where powder-like mixture of potash feldspar with magnesium oxide is placed. Screens 5 are made of porous refractory ceramic chemically resistant to gaseous fluorides made, for example from mullite or bokor. EFFECT: increased service life of plant. 2 dwg, 2 tbl

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RU 2 037 763 C1

Authors

Andreev M.E.

Vanyshev V.A.

Golenko V.P.

Poljanskij E.V.

Jarotskaja E.G.

Jarotskij V.G.

Dates

1995-06-19—Published

1990-06-27—Filed

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