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    • 16. 发明公开
    • PROCEDURE FOR EFFICIENT RECOVERY OF DIAMONDS, GOLD FROM TAILINGS
    • VERFAHREN ZUR EFFIZIENTEN WIEDERHERSTELLUNG VON DIAMANTEN UND GOLD AUS ABRAUMMATICIALIEN
    • EP3021969A4
    • 2017-04-12
    • EP14827136
    • 2014-07-21
    • SASSO CLAUDIO
    • SAMAROO MAHENDRA
    • B03B9/00B01D21/00B07B1/18C22B1/00C22B11/00
    • B03B9/00B03B5/48B03B7/00B07B1/18C22B1/00C22B11/021Y02P10/214
    • The value-minerals are captured by gravity-separation, from a low-grade slurry. The ratio of liquids-to-solids in the slurry affects the efficiency of capture, and an ideal liquids/solids ratio is the ratio at which the efficiency of capture is at a maximum. The ideal ratio is different for different particle-sizes. The procedure includes dewatering the slurry, dividing the dry particles by particle-size, and feeding the several size-divided dry-streams into respective capture-stations. Prior to each dry-stream entering its respective capture-station, make-up water is added to the dry-stream in such quantity as to bring the liquids/solids ratio up to the ideal, for that particle-size. The procedure makes it simple to provide accurate measurement of, and accurate control of, the liquids/solids ratio.
    • 通过重力分离从低级浆料中捕获价值矿物质。 浆料中的液体与固体的比例影响捕获效率,理想的液体/固体比是捕获效率达到最大值的比例。 不同粒径的理想比例是不同的。 该方法包括使浆料脱水,用颗粒尺寸分割干燥颗粒,并将多个分级干燥流送入相应的捕获站。 在每个干流进入其各自的捕获站之前,将补充水添加到干流中,其量使得液体/固体比达到理想值,对于该颗粒尺寸。 该程序使得提供准确的液体/固体比率的测量和精确控制变得简单。
    • 20. 发明公开
    • RECOVERY METHOD FOR RARE EARTH ELEMENTS
    • WIEDERHERSTELLUNGSVERFAHRENFÜRSELTENERDELEMENTE
    • EP3006581A4
    • 2017-01-11
    • EP14804098
    • 2014-05-29
    • HITACHI METALS LTD
    • HOSHI HIROYUKIMIYAMOTO YU
    • C22B59/00C22B1/02C22B5/10C22B7/00
    • C22B59/00C01G1/02C01G56/007C21B11/00C21B15/02C22B1/00C22B7/001Y02P10/214
    • An object of the present invention is to provide a method according to which a rare earth element can be efficiently recovered from a workpiece containing at least a rare earth element and an iron group element, and also wear and damage to the treatment container can be suppressed, allowing the container to be used repeatedly for a long period of time. The method of the present invention as a means for resolution is characterized in that in the heat treatment of an oxidation-treated workpiece in the presence of carbon, when the oxidation-treated workpiece is placed in a treatment container, a carbon substance is interposed between the oxidation-treated workpiece and the bottom surface of the container, and the heat treatment is performed in an inert gas atmosphere or in vacuum at a temperature of 1300°C or more.
    • 本发明的目的是提供一种可以从含有至少稀土元素和铁族元素的工件有效地回收稀土元素的方法,并且可以抑制对处理容器的磨损和损坏 ,允许容器长时间反复使用。 本发明的分解方法的特征在于,在碳的存在下对氧化处理的工件进行热处理时,当氧化处理的工件放置在处理容器中时,碳物质介于 氧化处理的工件和容器的底面,并且在惰性气体气氛中或在1300℃以上的温度下进行热处理。