COMPOSITION FOR MINERAL COTTON MAKING Russian patent published in 1994 - IPC

FIELD: chemical technology. SUBSTANCE: composition has additionally at least one of iron oxides FeO, Fe₂O₃ at the following ratio of components, wt. -% : SiO₂ 46.4-48.5; Al₂O₃ 1.5-2.5; CaO 17.0-17.8; MgO 19.5-21.0; Na₂O 2.5-3.5; K₂O 3.5-5.0, and at least one of oxides FeO, Fe₂O₃ 4.8-5.2. Also, composition has Cr₂O₃ at concentration 0.3-0.5%. EFFECT: content of nonfibrous inclusions at the charge reprocessing is decreased up to 2-3.5%. 2 cl, 1 tbl