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    Process for the recovery of micas by flotation and micas thus obtained
    161.
    发明授权
    Process for the recovery of micas by flotation and micas thus obtained 失效
    通过浮选和云母回收云母的方法

    公开(公告)号：US5439116A

    公开(公告)日：1995-08-08

    申请号：US190552

    申请日：1994-02-02

    Applicant: Andre Van Lierde ,  Jean-Philippe Beuvelet

    Inventor： Andre Van Lierde ,  Jean-Philippe Beuvelet

    IPC: B03D1/002 ,  B03D1/02

    CPC classification number: B03D1/002 ,  B03D1/008 ,  B03D1/01 ,  B03D1/02 ,  B03D2201/005 ,  B03D2201/02 ,  B03D2201/04 ,  B03D2203/02 ,  B03D2203/04

    Abstract: The invention relates to a process for the recovery of micas by flotation starting with slurried ore from which the fines have been optionally removed, comprising a stage of bringing the said slurry into contact with an appropriate cationic collector, followed by an actual flotation stage and recovery of the supernatant formed for subsequent treatment and optional rewashing, characterized in that it is carried out at a pH higher than 6 and in that the stage of bringing the said slurry into contact with the cationic collector is preceded by a stage of bringing the said slurry into contact with an activating agent chosen from soluble metal salts.The invention also relates to the micas obtained by the process.

    Abstract translation: 本发明涉及一种通过浮选回收云母的方法，该方法是从任选地除去细粒的浆状矿石开始，包括使所述浆料与合适的阳离子收集器接触的阶段，然后进行实际的浮选阶段和回收 的上清液，用于随后的处理和任选的再洗涤，其特征在于其在高于6的pH下进行，并且使所述浆料与阳离子收集器接触的阶段之前是将所述浆料 与选自可溶性金属盐的活化剂接触。 本发明还涉及通过该方法获得的云母。

    Natural calcium carbonate ores
    162.
    发明授权
    Natural calcium carbonate ores 失效
    天然碳酸钙

    公开(公告)号：US5084254A

    公开(公告)日：1992-01-28

    申请号：US602044

    申请日：1990-10-22

    Applicant: Christopher R. L. Golley

    Inventor： Christopher R. L. Golley

    IPC: B03B9/00 ,  B03D1/001 ,  B03D1/02 ,  C01F11/18 ,  C09C1/02

    CPC classification number: B03B9/00 ,  B03D1/01 ,  B03D1/011 ,  B03D1/016 ,  B03D1/02 ,  C01F11/185 ,  C09C1/021 ,  B03D2201/005 ,  B03D2201/02 ,  B03D2203/10 ,  C01P2002/84 ,  C01P2004/32 ,  C01P2004/61 ,  C01P2006/80

    Abstract: There is disclosed a process for purifying a calcium carbonate-containing mineral which process comprises the following steps:a) mixing the calcium carbonate-containing mineral with water and a dispersing agent to form a suspension containing from 60% to 80% by weight of the dry mineral;b) comminuting the suspension of calcium carbonate-containing mineral prepared in step a) to give a product containing not more than 5% by weight of particles which are retained on a sieve having a nominal aperture of 53 microns and not more than 50% by weight of particles which are smaller than 2 microns e.s.d.;c) subjecting the suspension containing from 60% to 80% by weight of the dry comminuted mineral prepared in step b) to froth flotation using a collector for discoloring impurities which colletor comprises a cation containing at least one long chain alkyl group having from 10 to 24 carbon atoms, to yield an underflow product containing the calcium carbonate-containing mineral from which substantially all discoloring impurities have been removed; andd) further comminuting the underflow product of step c) to give a material of which at least 40% by weight of the particles have an equivalent spherical diameter smaller than 2 microns.

    Method of conditioning clay for flotation using in situ ferrous activator
    163.
    发明授权
    Method of conditioning clay for flotation using in situ ferrous activator 失效
    使用原位亚铁激活剂调节粘土的浮选方法

    公开(公告)号：US4501658A

    公开(公告)日：1985-02-26

    申请号：US411250

    申请日：1982-08-25

    Applicant: Raymond H. Young

    Inventor： Raymond H. Young

    IPC: B03D1/001 ,  B03D1/02 ,  B03B1/00

    CPC classification number: B03D1/02 ,  B03D1/002 ,  B03D1/008 ,  B03D2201/005 ,  B03D2201/007 ,  B03D2203/04

    Abstract: Method of treating a clay to remove therefrom titanium mineral impurities comprising the steps of mixing an aqueous clay with a collector for the titanium mineral impurities, a reducing agent, and, if needed, an activator preferably comprising a water-soluble ferrous salt; conditioning the resulting mixture of aqueous clay slurry, collector, reducing agent and activator to dissipate therein at least 25 horsepower hours of energy per ton of solids; subjecting the conditioned mixture to froth flotation and removing titanium impurities with the froth; and recovering clay having a reduced titanium minerals impurities content. The method includes the case where the activator is a ferrous salt formed in situ from iron impurities in the clay formed by adding said reducing agent in place of some or all of added activator.

    Abstract translation: 处理粘土以除去钛矿物杂质的方法，包括以下步骤：将含水粘土与用于钛矿物杂质的收集器混合，还原剂和如果需要的优选包含水溶性亚铁盐的活化剂; 调节所得的含水粘土浆料，收集剂，还原剂和活化剂的混合物，以在其中散发每吨固体至少25马力的能量; 对经过调节的混合物进行泡沫浮选并用泡沫除去钛杂质; 并回收具有降低的钛矿物杂质含量的粘土。 该方法包括活化剂是通过加入所述还原剂代替添加的一些或全部活化剂形成的粘土中的铁杂质原位形成的亚铁盐。

    Method of treating clay to improve its whiteness
    164.
    发明授权
    Method of treating clay to improve its whiteness 失效
    处理粘土以提高其白度的方法

    公开(公告)号：US4492628A

    公开(公告)日：1985-01-08

    申请号：US411588

    申请日：1982-08-25

    Applicant: Raymond H. Young ,  Horton H. Morris ,  Robert L. Brooks

    Inventor： Raymond H. Young ,  Horton H. Morris ,  Robert L. Brooks

    IPC: C09C1/00 ,  B03D1/001 ,  B03D1/016 ,  B03D1/02 ,  B03D3/06 ,  B28C1/08 ,  C01B33/26 ,  C09C1/40 ,  C09C1/42 ,  B03B1/00

    CPC classification number: B28C1/08 ,  B03D1/016 ,  B03D1/02 ,  B03D3/06 ,  B03D2201/005 ,  Y02P40/63

    Abstract: A method of treating a clay to remove therefrom titanium mineral impurities comprising the steps of mixing an aqueous slurry of said clay having a high solids content with an activator and a collector for the titanium mineral impurities; conditioning the aqueous clay slurry at said high solids content for a time sufficient to dissipate therein at least 25 horsepower hours of energy per ton of solids; adding to the conditioned aqueous clay slurry a polyacrylate salt deflocculant; subjecting the conditioned aqueous clay slurry undiluted containing the polyacrylate salt deflocculant to a froth flotation process and removing the titanium impurities with the froth; and recovering clay having a reduced titanium minerals impurities content.

    Abstract translation: 一种处理粘土以从其中除去钛矿物杂质的方法，包括以下步骤：将具有高固体含量的所述粘土的水浆料与用于钛矿物杂质的活化剂和收集剂混合; 以所述高固体含量调节含水粘土浆料足以在其中散发其中每吨固体至少25马力的能量的时间; 向所述调理的水性粘土浆料中加入聚丙烯酸盐抗絮凝剂; 将含有聚丙烯酸酯盐絮凝剂的未稀释的调理的含水粘土浆料进行泡沫浮选处理，并用泡沫体除去钛杂质; 并回收具有降低的钛矿物杂质含量的粘土。

    Flotation with xanthate
    165.
    发明授权
    Flotation with xanthate 失效
    与XANTHATE浮动

    公开(公告)号：US3901450A

    公开(公告)日：1975-08-26

    申请号：US30369172

    申请日：1972-11-06

    Applicant: WESTON DAVID

    Inventor： WESTON DAVID

    IPC: B03D1/001 ,  B03D1/02 ,  B02C17/00

    CPC classification number: B03D1/02 ,  B03D1/002 ,  B03D1/012 ,  B03D2201/005 ,  B03D2201/02 ,  B03D2203/02

    Abstract: A process for the flotation of copper minerals employing xanthates, wherein the copper minerals are strongly activated in at least one stage at a pH of 10 to 12 and then conditioned with a dispersing agent or a flocculating agent prior to flotation, the process showing marked improvement in grade and recovery in the case of refractory ores and ore containing talc and clay, and being effective to concentrate copper sulphides, copper silicates and copper oxide in the same circuit.

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