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2 093 611

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IPC

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Application

96105056/02, 1996-03-12

(22)

Actual filing date

1996-03-12

(45)

Published

1997-10-20

(72)

Inventor

Derevjagin V.N.Gromov B.S.Barantsev A.G.Pak R.V.

(73)

Holder

Aktsionernoe Obshchestvo Otkrytogo Tipa Aljuminievyj Zavod"

METHOD OF AUTOMATICALLY CONTROLLING FEED OF ALUMINUM ELECTROLYZER USING SILICA Russian patent published in 1997 - IPC

Abstract RU 2093611 C1

FIELD: aluminum production. SUBSTANCE: silica is portionwise fed onto electrolyte surface in the regions with open surface without piercing crust. Amount of silica delivered in these regions is raised as compared to regions with cryolite-silica crust. In the regions having such crust and increased accretion volume, amount of delivered silica is diminished as compared to regions with open electrolyte surface. Weight of silica portion fed onto crust or electrolyte surface is 0.05-0.19 kg and feeding periodicity is 20-400 s. EFFECT: enhanced efficiency of process. 4 cl, 1 dwg, 1 tbl

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RU 2 093 611 C1

Authors

Derevjagin V.N.

Gromov B.S.

Barantsev A.G.

Pak R.V.

Dates

1997-10-20—Published

1996-03-12—Filed

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