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    SODIUM PETROLEUM SULFONATE COLLECTOR FOR FLUORITE FLOTATION AND ITS PREPARATION AND APPLICATION METHOD
    2.
    发明公开
    SODIUM PETROLEUM SULFONATE COLLECTOR FOR FLUORITE FLOTATION AND ITS PREPARATION AND APPLICATION METHOD 审中-公开

    公开(公告)号：US20230143136A1

    公开(公告)日：2023-05-11

    申请号：US17938983

    申请日：2022-09-07

    Applicant: WUHAN UNIVERSITY OF TECHNOLOGY

    Inventor： ZIJIE REN ,  ZHENGZHENG GUO ,  HUIMIN GAO ,  YUHAO HE ,  YANG LIU ,  XIN FANG

    IPC: B03D1/012 ,  B03D1/02

    CPC classification number: B03D1/012 ,  B03D1/02 ,  B03D2201/02 ,  B03D2203/02

    Abstract: Disclosed is a sodium petroleum sulfonate collector for fluorite flotation, comprising sodium petroleum sulfonate and non-polar oil, wherein the molar ratio of the non-polar oil to the sodium petroleum sulfonate is 3.33-5.67, the sodium petroleum sulfonate comprises raw material oil and active substance, the molecular weight of the raw material oil is 350-450, the molecular weight of the sodium petroleum sulfonate is 500-750, the aromatic hydrocarbon comprises benzene ring hydrocarbon and naphthalene ring hydrocarbon, the content of the benzene ring hydrocarbon is 5% to 11%, and the content of the naphthalene ring hydrocarbon is 5% to 5.2%, the raw material oil needs to be sulfonated by sulfur trioxide, and the molar ratio of the aromatic hydrocarbon to the sulfur trioxide in the raw material oil is 2.4 to 5. The sodium petroleum sulfonate collector proposed by this disclosure is both efficient and low temperature resistant.

    ALKYL THIOETHER ETHYL HYDROXAMIC ACID BENEFICIATION REAGENT AND PREPARATION METHOD AND APPLICATION THEREOF
    3.
    发明申请
    ALKYL THIOETHER ETHYL HYDROXAMIC ACID BENEFICIATION REAGENT AND PREPARATION METHOD AND APPLICATION THEREOF 有权

    公开(公告)号：US20210276023A1

    公开(公告)日：2021-09-09

    申请号：US15734226

    申请日：2020-06-19

    Applicant: CENTRAL SOUTH UNIVERSITY

    Inventor： Hong ZHONG ,  Qing SUN ,  Shuai WANG

    IPC: B03D1/012

    Abstract: An alkyl thioether ethyl hydroxamic acid beneficiation reagent and a preparation method and application thereof are provided. The alkyl thioether ethyl hydroxamic acid molecules have two functional groups, a thioether group and a hydroxamate group. The beneficiation reagent is obtained by esterification of alkyl thioether acetic acid and methanol and then by hydroxamation of hydroxylamine and an alkali. The alkyl thioether ethyl hydroxamic acid beneficiation reagent can be used as a collector for mineral flotation. The preparation method is simple and has a high yield. The thioether and hydroxamate group in the molecules have a synergistic effect and can effectively improve the collection performance.

    Method of using flotation collector containing azolethione structure
    5.
    发明授权
    Method of using flotation collector containing azolethione structure 有权

    公开(公告)号：US10737280B2

    公开(公告)日：2020-08-11

    申请号：US16361156

    申请日：2019-03-21

    Applicant: CENTRAL SOUTH UNIVERSITY

    Inventor： Guangyi Liu ,  Yaoguo Huang ,  Longqun Ma ,  Xiaoxue Niu ,  Jun Liu ,  Hong Zhong ,  Zhe Hu

    IPC: B03D1/02 ,  B03D1/012

    Abstract: The present invention relates to an azolethione flotation collector and application thereof. According to the application, an azolethione compound such as a 1,3,4-thiadiazole-2-thione compound, a 1,3,4-oxadiazole-2-thione compound, a 1,2,4-triazole-3-thione compound or a 1,2,4,5-tetrazole-3-thione compound is used as a mineral flotation collector to be applied to ores containing copper, zinc, lead, nickel, cobalt, platinum, palladium, silver or gold minerals to realize flotation recovery of valuable metal minerals. Compared with common flotation collectors in the existing technologies, the flotation collector of the present invention can effectively improve enrichment and recovery of copper, zinc, lead, nickel, cobalt, platinum, palladium, silver or gold minerals.

    Process for the selective floatation of kainite from mineral mixtures using sulfated fatty acids as the collector reagent
    10.
    发明授权
    Process for the selective floatation of kainite from mineral mixtures using sulfated fatty acids as the collector reagent 有权

    公开(公告)号：US10118183B2

    公开(公告)日：2018-11-06

    申请号：US15531660

    申请日：2015-12-01

    Applicant: K+S AKTIENGESELLSCHAFT

    Inventor： Uwe Wachsmuth ,  Jochen Brod

    IPC: B03D1/02 ,  B03D1/012 ,  C01D5/12 ,  C01D5/16

    Abstract: The invention relates to a process for selective flotation of kainite from crushed crude potash salts or, for example, from crystallized salt mixtures obtained by evaporation processes, which in addition to kainite may contain further minerals such as halite, sylvine and other salt minerals, for example, in order to produce a kainite concentrate fraction and a residues fraction. The separation process is characterized in that the crushed or crystallized salt mixture is intensively mixed as a crystallizate suspension with a combination of conditioning agents consisting of a sulfated fatty acid or its alkali metal salt as collecting reagent and a frothing agent known for flotation (for example, glycol ether, monohydric aliphatic alcohols, terpene alcohols, polyglycol ethers, etc.) and is then separated by agitator-driven or pneumatic flotation into a kainite concentrate fraction and a residues fraction. The resulting fractions may be further processed in downstream processes. This process permits industrial-scale processing for selective extraction of kainite from mineral mixtures by means of the flotation process.

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