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    Process for the production of black iron oxide pigments
    1.
    发明授权
    Process for the production of black iron oxide pigments 失效
    生产黑色氧化铁颜料的方法

    公开(公告)号：US06302952B1

    公开(公告)日：2001-10-16

    申请号：US09581541

    申请日：2000-08-18

    申请人： David Barry Mobbs ,  Matthew James Jackson

    发明人： David Barry Mobbs ,  Matthew James Jackson

    IPC分类号： C09C124

    CPC分类号： C01G49/06 ,  C01G49/08 ,  C01P2004/51 ,  C01P2004/61 ,  C01P2004/62 ,  C01P2004/82 ,  C01P2006/60 ,  C01P2006/62 ,  C01P2006/63 ,  C01P2006/64 ,  C09C1/24

    摘要： A process for the production of a black iron oxide pigment from Fe2O3 hematite iron oxide which may be an impure oxide produced by the “Ruthner” process or by other means, or which may be a mineral hematite. The process may be used to upgrade poor quality synthetic or natural hematite, or to improve their performance as red pigments, by conversion to black pigment with subsequent oxidation of the magnetite so produced back to hematite. The process uses a low temperature aqueous slurry reaction in which the hematite is contacted with a soluble source of Fe(II) ions in the presence of a soluble source of Fe(III) ions in an aqueous alkaline medium to convert the same to Fe3O4.

    摘要翻译： 由Fe2O3赤铁矿氧化铁制备黑色氧化铁颜料的方法，其可以是由“Ruthner”方法或其它方法生产的不纯氧化物，或可以是矿物赤铁矿。 该方法可用于升级劣质合成或天然赤铁矿，或通过转化成黑色颜料，随后氧化生成的赤铁矿而改善其作为红色颜料的性能。 该方法使用低温含水浆料反应，其中在含水碱性介质中的可溶性Fe（III）源存在下，赤铁矿与可溶解的Fe（II）离子源接触，将其转化为Fe 3 O 4。

    Production of carbon from coal granules prepared in a fluid energy mill
    2.
    发明授权
    Production of carbon from coal granules prepared in a fluid energy mill 失效
    在流体能量磨中制备的煤颗粒生产碳

    公开(公告)号：US4102812A

    公开(公告)日：1978-07-25

    申请号：US725278

    申请日：1976-09-21

    申请人： Michael Robinson ,  David Barry Mobbs ,  Kirit Talati

    发明人： Michael Robinson ,  David Barry Mobbs ,  Kirit Talati

    IPC分类号： C01B31/08 ,  C01B31/10 ,  B01J21/18 ,  C01B31/14

    CPC分类号： C01B31/10

    摘要： Granular active carbon having satisfactory adsorbency and hardness characteristics and having a high proportion of its porosity in the below 2000 A range is produced from granules prepared from coal fluid energy milled until not more than 1% of the particles have diameters above 38 microns. The coal has a low ash and high carbon content and may have a British Standard Swelling number from 2 to 7 although it is preferred for the volatile matter content of the coal to be not more than 40% on a dry ash free basis. The granules may be produced by compacting milled particles having a temperature of from 50.degree. C to 250.degree. C between unheated pressure rolls.

    摘要翻译： 颗粒活性炭具有令人满意的吸附性和硬度特性，并且在低于2000A的范围内具有高比例的孔隙率，由从煤流体能量研磨制备的颗粒产生，直到不超过1％的颗粒具有大于38微米的直径。 煤具有低灰分和高碳含量，并且可能具有2至7的英制标准溶胀数，尽管煤的挥发物含量优选在不依赖干灰的基础上不超过40％。 颗粒可以通过在未加热的压力辊之间压实温度为50℃至250℃的研磨颗粒来制备。