[EN] METHOD FOR FLOTATION OF A SILICATE-CONTAINING IRON ORE WITH A CATIONIC COLLECTOR<br/>[FR] PROCÉDÉ DE FLOTTATION D'UN MINERAI DE FER CONTENANT DU SILICATE AVEC UN COLLECTEUR CATIONIQUE
申请人:BASF SE
公开号:WO2020221685A1
公开(公告)日:2020-11-05
The invention relates to a method for manufacturing a concentrate enriched in iron mineral content from an ore, which contains an iron mineral and silicate, by reverse flotation, which method comprises the step of (c) adding a compound of formula I wherein R1 is C9-C22 alkyl or alkenyl, which is linear or branched, R2 is H, C1-C4 alkyl, which is linear or branched, R3 is -X-NH2, H or C1-C4 alkyl, which is linear or branched, and X is C2-C4 alkylene, which is linear or branched, or a salt of a protonated compound of formula I and an anion, to a prepared aqueous pulp of the ore and optionally one or more flotation auxiliaries to obtain an aqueous mixture. Furthermore, a method for manufacturing a specific group of compounds of formula I, i.e. compounds of formula l-X wherein R1 is C9-C15 alkyl, which is linear or branched, R2 is H, R3 is -X-NH2 and X is C2-C4 alkylene, which is linear or branched, is disclosed.
该发明涉及一种从含有铁矿物和硅酸盐的矿石中制备富含铁矿物含量的浓缩物的方法,该方法通过反向浮选实现,其中所述方法包括步骤(c):向准备好的矿石水浆中添加一种具有以下式I的化合物,其中R1为C9-C22烷基或烯基,为直链或支链,R2为H,C1-C4烷基,为直链或支链,R3为-X-NH2,H或C1-C4烷基,为直链或支链,X为C2-C4亚烷基,为直链或支链,或者是具有以下式I的质子化合物及阴离子的盐,以获得一种水混合物。此外,还公开了一种制备一组特定的具有式I的化合物的方法,即具有式l-X的化合物,其中R1为C9-C15烷基,为直链或支链,R2为H,R3为-X-NH2,X为C2-C4亚烷基,为直链或支链。