BATCH FOR MANUFACTURING OF IRON-ORE PELLETS Russian patent published in 2004 - IPC

Abstract RU 2241770 C1

FIELD: metallurgy, in particular batch for producing of iron-ore pellets from crushed raw materials.

SUBSTANCE: clamed batch contains (mass %): 0.3-1.0 of binder and balance: iron-ore concentrate. Mixture of waste from iron-ore concentration comprising 10-30 % of fine sandy fraction with grain-size of 0.25-0.074 mm and 70-90 % of clay fraction with grain-size of <0.074 mm is used as a binder. Additionally batch contains 0.001-0.01 mass % of polyacrylamide as reduced to iron-ore concentrate.

EFFECT: burned pellets with increased strength, iron content and improved ecological properties.

2 cl, 3 tbl, 1 ex

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RU 2 241 770 C1

Authors

Mel'Nik V.G.

Mel'Nik D.V.

Dates

2004-12-10—Published

2003-10-09—Filed