DIAMINE COMPOUNDS AND THEIR USE FOR INVERSE FROTH FLOTATION OF SILICATE FROM IRON ORE

    公开(公告)号:ZA201308449B

    公开(公告)日:2015-11-25

    申请号:ZA201308449

    申请日:2013-11-11

    Applicant: BASF SE

    Abstract: The invention concerns a process for enriching an iron mineral from a silicate containing iron ore by inverse flotation comprising the addition of a collector or collector composition comprising at least one of the compounds of formulae RC(O)N(Z—O—X—NH2)2 (Ia); RC(O)N(Z—O—X—NH2)2H+ Y− (Ib); in which X is an aliphatic alkylene group containing 2 to 6 carbon atoms; Z is an aliphatic alkylene group containing 2 to 6 carbon atoms; Y− is an anion; and R is a saturated or unsaturated, linear or branched, aliphatic or aromatic moiety having between 7 and 23 carbon atoms. The invention also relates to the novel compounds according to formulae (Ia) and (Ib), compositions comprising said compounds and the use of compounds and formulations as collectors for enriching of iron mineral.

    AMINE AND DIAMINE COMPOUNDS AND THEIR USE FOR INVERSE FROTH FLOTATION OF SILICATE FROM IRON ORE

    公开(公告)号:ZA201308450B

    公开(公告)日:2015-05-27

    申请号:ZA201308450

    申请日:2013-11-11

    Applicant: BASF SE

    Abstract: The invention relates to a process for enriching an iron mineral from a silicate containing iron ore by inverse flotation comprising the addition of a collector or collector composition comprising at least one of the compounds of formulae RO-X-NH2 (Ia); RO-X-NH3+Y- (Ib); RO-X-NH-Z-NH2 (IIa); and RO-X-NH-Z-NH3+Y- (IIb), in which X is a linear or branched aliphatic alkylene group containing 2 to 6 carbon atoms; Z is a linear or branched aliphatic alkylene group containing 2 to 6 carbon atoms; Y- is an anion; and R is an aliphatic group of the formula (I) C5H11CH(C3H7)CH2- (I) wherein the C5H11 moeity of the aliphatic group of the formula (I) comprises 70 to 99% by weight n-C5H11-, and 1 to 30% by weight C2H5CH(CH3)CH2- and/or CH3CH(CH3)CH2CH2-. RO-X-NH2(Ia) RO-X-NH3+Y-(Ib) RO-X-NH-Z-NH2(IIa) RO-X-NH-Z-NH3+Y-(IIb) C5H11CH(C3H7)CH2-(I)

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