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Leonid M Pokrass

Abram M Ofengenden

Leonid I Krupman

Alexandr E Sochnev

Georgy Gavrilovich Zhitnik

Boris Viktorovich Gavronsky

Sergei P Efimenko

Jury G Smetanin

Jury P Shamil

Vadim M Ljudkovsky

Anatoly Nikolaevich Kalashnik

Anatoly A Kurdjukov

Grigory I Antipenko

Vasily Sergeevich Chumachenko

Abram I Khitrik

Veniamin Mikhailovich Gudkevich

Georgy Alexeevich Panev

Savely Adolfovich Telesov

Albert N Samsonov

Valentin Y Laschev

Alexandr P Voropaev

Jury G Yaroslavtsev

Vasily Ivanovich Detochka

Vakhtang V Mosiashvili

Ary Mikhailovich Okonishnikov

Viktor Alexeevich Popov

Raisa Petrovna Nesterovich

The present invention resides essentially in that a proposed mixture comprises an aluminium powder, nitre and a silica-containing component, the mixture composition, according to the invention, incorporating, apart from said constituents, calcium oxide, expanded pearlite or fluorspar, and a silicon-containing component. The proposed mixture provides for the burning thereof with subsequent formation of molten slag therefrom adapted for refining steel in a ladle.

Exothermic slag-forming mixture

A method for refining a quantity of metal by a correlated quantity of fluid slag comprising discharging the metal to be refined as a stream into a refining vessel and discharging the slag into the vessel in a stream which strikes the metal stream. The slag is discharged in an amount equal to 50% of the total slag content before the discharge of 20% of the metal is completed, the discharge of slag being halted while continuing the discharge of the metal until 50% of the metal has been discharged. The discharge of the remaining 50% of the slag content is resumed as a stream striking the metal stream during the time when the remaining 50% of the metal is discharged.

Method of refining of metal

A mixture for refining metals, comprising (weight per cent): lime          30 - 70, sodium nitrate     15 - 30, aluminum-containing component 8 - 25, fluorspar       the balance. The proposed mixture is of particular advantage in non-furnace refining of molten ferrous metals of responsible application which should meet most stringent specifications as to their freedom from sulfur, oxygen and non-metalics.

Slag-forming mixture

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Kharkiv, Ukraine

Leonid M Pokrass