CHARGE FOR PREPARING SLAG NEUTRALIZER Russian patent published in 2006 - IPC C04B35/101 C04B35/63 

FIELD: refractory material manufacture, possibly production of neutralizer of slag in converters and plants for out-of-furnace steel evacuating.

SUBSTANCE: charge for producing slag neutralizer on base of alumina filler prepared from technological alumina with additive of boron compound contains next relation of ingredients, mass %: technical-grade alumina or aluminum hydroxide and technical-grade alumina with fraction size less than 0.063 mm, 60 - 68; non-organic plasticizer, 5 - 20; organic adhesive, 1 - 5; binder, 6 -15. Charge filler contains α -alumina at relation of technical-grade alumina to α-alumina (1 : 2) - (2 : 1), boric acid is used boron compound at relation of charge components, mass %: alumina filler with fraction size less than 3 mm, 40 -80; boric acid, 0.5 -3; adhesive composition, 19.5 - 57.

EFFECT: preparation of charge for slag neutralizer on base of active form of alumina with structure having target strength at room temperature with high permeability relative to melt slag, lowered temperature for heat treatment of material.

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