Process for the beneficiation of sulfide minerals
    11.
    发明授权
    Process for the beneficiation of sulfide minerals 有权
    硫化矿物选矿工艺

    公开(公告)号:US06820746B2

    公开(公告)日:2004-11-23

    申请号:US10270754

    申请日:2002-10-15

    IPC分类号: B03D102

    摘要: Froth flotation processes, useful for beneficiating base metal mineral values from metal sulfide ore, utilize a collector comprising an N-butoxycarbonyl-O-alkylthionocarbamate selected from the group consisting of N-butoxycarbonyl-O-methylthionocarbamate, N-butoxycarbonyl-O-ethylthionocarbamate, N-butoxycarbonyl-O-propylthiononocarbamate, N-butoxycarbonyl-O-butylthionocarbamate, N-butoxycarbonyl-O-pentylthionocarbamate, and N-butoxycarbonyl-O-hexylthionocarbamate.

    摘要翻译: 可用于从金属硫化物矿石中选择贱金属矿物值的泡沫浮选方法利用选自N-丁氧基羰基-O-甲基硫代氨基甲酸酯,N-丁氧基羰基-O-乙基硫代氨基甲酸酯,N-丁氧基羰基-O-乙基硫代氨基甲酸酯, N-丁氧基羰基-O-丙基硫代氨基甲酸酯,N-丁氧基羰基-O-丁硫羰基氨基甲酸酯,N-丁氧基羰基-O-戊基硫代氨基甲酸酯和N-丁氧基羰基-O-己基硫代氨基甲酸酯。

    Flotation separation of valuable minerals
    12.
    发明授权
    Flotation separation of valuable minerals 失效
    浮选分离有价值矿物

    公开(公告)号:US06427843B1

    公开(公告)日:2002-08-06

    申请号:US09320530

    申请日:1999-05-26

    IPC分类号: B03D102

    摘要: A process for separating minerals of different mineralogical character. A milled slurry or flotation concentrate is subjected to a first conditioning step (20) followed by a first flotation step (30) followed by a second conditioning step (50) followed by a second flotation step (60). One of the conditioning steps is with an oxidising gas, the other of the conditioning steps being with a non-oxidising gas and an oxidisable surface modifying reagent. The process allows separation of mixtures of valuable minerals by tailoring both the first and second conditioning steps and first and second flotation steps to particular mixed mineral ores.

    摘要翻译: 分离不同矿物学特征的矿物的过程。 经研磨的浆液或浮选浓缩物经受第一调节步骤(20),随后进行第一浮选步骤(30),随后进行第二调节步骤(50),随后进行第二浮选步骤(60)。 其中一个调节步骤是氧化气体,另一个调节步骤是用非氧化气体和可氧化的表面改性剂。 该方法允许通过将第一和第二调节步骤和第一和第二浮选步骤调整到特定的混合矿物矿石来分离有价值矿物的混合物。

    Air-assisted density separator device and method
    13.
    发明授权
    Air-assisted density separator device and method 有权
    空气辅助密度分离装置及方法

    公开(公告)号:US06425485B1

    公开(公告)日:2002-07-30

    申请号:US09276212

    申请日:1999-03-25

    IPC分类号: B03D102

    摘要: A process is described for separating particles based on differences in mass after the selective attachment of air bubbles to reduce the density of one or more of the components of the feed. A novel feature of this process is aeration of a hindered-bed of solids in a fluidized-bed separator to create particle/bubble agglomerates that can be separated based on the principal of gravity. This approach offers an improvement in process efficiency that cannot be achieved by other processes. Air and water are mixed in a shear device before the aerated fluidized water is introduced to the separation chamber.

    摘要翻译: 描述了一种用于在选择性附着气泡之后基于质量差异分离颗粒以降低进料中一种或多种组分的密度的方法。 该方法的新颖特征是在流化床分离器中通入固体受阻壁以产生可以基于重力原理分离的颗粒/气泡附聚物。 这种方法提高了其他过程无法实现的过程效率。 在将充气流化水引入分离室之前,空气和水在剪切装置中混合。

    Flotation method for removing colored impurities from kaolin clay
    14.
    发明授权
    Flotation method for removing colored impurities from kaolin clay 有权
    从高岭土中去除有色杂质的浮选方法

    公开(公告)号:US06378703B1

    公开(公告)日:2002-04-30

    申请号:US09727322

    申请日:2000-11-30

    IPC分类号: B03D102

    摘要: An improved method for purifying titania contaminated kaolin clay by froth flotation which features the use an hydroxamate flotation collector at a neutral or mildly alkaline pH wherein a slurry of the impure clay is conditioned for the flotation step in a baffled conditioning apparatus provided with mean for imparting sufficient mechanical energy to heat a dispersed slurry of the impure clay before flotation.

    摘要翻译: 一种用于通过泡沫浮选来净化二氧化钛污染的高岭土的改进方法,其特征在于在中性或弱碱性pH下使用异羟肟酸盐浮选捕集剂,其中将不纯的粘土的浆液调节至浮选步骤中的浮选步骤,其具有赋予 足够的机械能来在浮选前加热不纯的粘土的分散浆料。