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    FROTHING AGENT FOR FLOTATION OF ORES
    21.
    发明公开
    FROTHING AGENT FOR FLOTATION OF ORES 审中-公开

    公开(公告)号：US20230302463A1

    公开(公告)日：2023-09-28

    申请号：US18015625

    申请日：2021-07-27

    Applicant: BASF SE

    Inventor： Graeme Levi Stewart ,  Alexej Michailovski ,  Yoav Zuk

    IPC: B03D1/008 ,  B03D1/004

    CPC classification number: B03D1/008 ,  B03D1/0043 ,  B03D2201/04 ,  B03D2203/02

    Abstract: Described herein are methods for flotation of an ore. The methods include providing an aqueous suspension having an ore in the form of particles, water, and a first frothing agent including a poly(tetrahydrofuran), in a flotation cell to obtain a provided aqueous suspension. The method further includes introducing air into the provided aqueous suspension to obtain a froth. Further described herein are specific aqueous suspensions having ore particles and poly(tetrahydrofuran) and uses of poly(tetrahydrofuran) as a frothing agent for an aqueous suspension having an ore in the form of particles.

    METHOD FOR FLOTATION OF A SILICATE-CONTAINING IRON ORE
    22.
    发明公开
    METHOD FOR FLOTATION OF A SILICATE-CONTAINING IRON ORE 审中-公开

    公开(公告)号：US20230249197A1

    公开(公告)日：2023-08-10

    申请号：US18015645

    申请日：2021-08-10

    Applicant: BASF SE

    Inventor： Alexej Michailovski ,  Gabriela Budemberg ,  Bettina Sobotka ,  Radoslaw Kierat

    IPC: B03D1/01

    CPC classification number: B03D1/01 ,  B03D2201/02 ,  B03D2203/04

    Abstract: Described herein are methods for manufacturing a concentrate enriched in iron mineral content from an ore, which contains an iron mineral and silicate, by a reverse flotation. The method includes adding a first amine to a prepared aqueous pulp of the ore and optionally one or more flotation auxiliaries to obtain an aqueous mixture. The first amine (A) may be a compound of formula I




    a salt of a protonated compound of formula I and a first anion or a mixture thereof. A second amine, which is a compound of formula II




    a salt of a protonated compound of formula II and a second anion or a mixture thereof, can be further added. Further described herein are specific compositions of the first amine (A) and the second amine (B) for a use as a flotation collector.

    Method For Flotation Of A Phosphate-Containing Ore
    23.
    发明申请
    Method For Flotation Of A Phosphate-Containing Ore 有权

    公开(公告)号：US20230066944A1

    公开(公告)日：2023-03-02

    申请号：US17791090

    申请日：2021-01-07

    Applicant: BASF SE

    Inventor： Susan Carvalho ,  Alexej Michailovski ,  Rostislav Kamkin ,  Bettina Sobotka

    IPC: B03D1/02 ,  B03D1/008 ,  B03D1/004

    Abstract: The invention relates to a method for manufacturing a concentrate enriched in a phosphate mineral content from an ore, which contains a phosphate mineral and a non-phosphate mineral, by a flotation, which method comprises the step of adding a surfactant system comprising (A) a fatty acid, (B) a blend of ethoxylated and non-ethoxylated alcohols, which is obtainable by blending (i) a reaction product of a first C12-C16 aliphatic alcohol having an average degree of branching of 1.9 to 3.5 and 10 to 20 equivalents of ethylene oxide, and (ii) a second C12-C16 aliphatic alcohol having an average degree of branching of 1.9 to 3.5, wherein the amount of (i) is 80 to 95 wt. % and the amount of (ii) is 5 to 20 wt. % and wt. % is based on the overall weight of the mixture of ethoxylated and non-ethoxylated alcohols, to a prepared aqueous pulp of the ore and optionally one or more flotation auxiliaries to obtain an aqueous mixture. Furthermore, a use of the surfactant system as flotation collector is disclosed.

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