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2 170 601

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IPC

(21) (22)

Application

2000113901/12, 2000-05-31

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Start date

2000-05-31

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Actual filing date

2000-05-31

(45)

Published

2001-07-20

(72)

Inventor

Alikin V.N.Kuz'Mitskij G.Eh.Fedchenko N.N.Poletaev D.V.Zhuravlev V.A.Makarov L.B.Makarovets N.A.Kobylin R.A.Koren'Kov V.M.Gaevskij V.V.

(73)

Holder

Federal'Noe Gosudarstvennoe Unitarnoe Predprijatie Zavod Im. S.M. Kirova"

METHOD OF PREPARING FIRE-EXTINGUISHING POWDERED COMPOSITION Russian patent published in 2001 - IPC

Abstract RU 2170601 C1

FIELD: fire extinguishing. SUBSTANCE: invention relates to fire-extinguishing powdered compositions based on potassium chloride. The latter is dried, cribled, redried and then subjected to hydrophobization with alkylhalosilanes in vapor phase at 80-100 C after preliminary passage of air with absolute moisture content 60-70 g/cu.cm. Hydrophobized powder is calcined in silica powder medium at 80-155 C for 2.5-4.5 h and recribled to give powder with high hydrophobicity level, in which fraction below 50 mcm constitutes at least 70%. EFFECT: increased fire-extinguishing efficiency. 1 dwg, 1 tbl

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RU 2 170 601 C1

Authors

Alikin V.N.

Kuz'Mitskij G.Eh.

Fedchenko N.N.

Poletaev D.V.

Zhuravlev V.A.

Makarov L.B.

Makarovets N.A.

Kobylin R.A.

Koren'Kov V.M.

Gaevskij V.V.

Dates

2001-07-20—Published

2000-05-31—Filed