Preventing or reducing scale in wet-process phosphoric acid production
    5.
    发明授权
    Preventing or reducing scale in wet-process phosphoric acid production 有权
    预防或减少湿法磷酸生产的规模

    公开(公告)号:US09028787B2

    公开(公告)日:2015-05-12

    申请号:US12888861

    申请日:2010-09-23

    CPC分类号: C01B25/22

    摘要: Methods for preventing or reducing the formation of scale in a wet-process phosphoric acid production process by intermixing a water-soluble functional organic reagent with a phosphoric acid at one or more step of the phosphoric acid production process in an amount sufficient to prevent or reduce at least one species of scale are provided.

    摘要翻译: 通过在磷酸生产过程中的一个或多个步骤将水溶性功能性有机试剂与磷酸混合,以防止或减少在湿法磷酸生产过程中形成规模的方法, 提供至少一种量表。

    PROCESS FOR THE REMOVAL OF IMPURITIES FROM CARBONATE MINERALS
    6.
    发明申请
    PROCESS FOR THE REMOVAL OF IMPURITIES FROM CARBONATE MINERALS 有权
    从碳酸盐矿中去除污染物的过程

    公开(公告)号:US20080164140A1

    公开(公告)日:2008-07-10

    申请号:US11968850

    申请日:2008-01-03

    IPC分类号: C25B5/00

    CPC分类号: H01F1/445 B03C1/30

    摘要: A process for the beneficiation of carbonate mineral substrates by magnetic separation is defined herein wherein a phosphorus or nitrogen containing organic compound or reagent and a plurality of magnetic particles are intermixed with a carbonate containing mineral substrate, a magnetic field is applied to the mixture and a value mineral is thereby separated from a non-value mineral.

    摘要翻译: 本文定义了通过磁选分离碳酸盐矿物基质的方法,其中将含磷或氮的有机化合物或试剂和多个磁性颗粒与含碳酸盐的矿物基质混合,将磁场施加到混合物上, 因此,价值矿物与非价值矿物分离。

    Way to synthesize structured composite premium pigments
    8.
    发明授权
    Way to synthesize structured composite premium pigments 失效
    合成结构复合高级颜料的方法

    公开(公告)号:US5690728A

    公开(公告)日:1997-11-25

    申请号:US582207

    申请日:1996-01-02

    摘要: A structured composite pigment composed of TiO.sub.2, calcined clay and polyaluminum chloride (PAC). A novel process is disclosed for producing an aggregated composite premium pigment having superior optical, physical and dispersion characteristics for papermaking applications. The aggregated pigment is produced by chemically aggregating a mixture containing TiO.sub.2 and calcined clay with polyaluminum chloride of a basicity of 10-85% in alkaline conditions of pH 8.5-10.5.

    摘要翻译: 由TiO 2,煅烧粘土和聚氯化铝(PAC)组成的结构复合颜料。 公开了一种用于生产用于造纸应用具有优异的光学,物理和分散特性的聚合复合高级颜料的新方法。 聚集的颜料通过在pH 8.5-10.5的碱性条件下将含有TiO 2和煅烧粘土的混合物与碱性为10-85%的聚氯化铝进行化学聚集来制备。

    Composite aggregate pigments for the coating industry
    9.
    发明授权
    Composite aggregate pigments for the coating industry 失效
    用于涂料工业的复合骨料颜料

    公开(公告)号:US5755870A

    公开(公告)日:1998-05-26

    申请号:US763903

    申请日:1996-12-11

    IPC分类号: C09C1/00 C09C1/36

    摘要: This invention discloses a process of making composite aggregate pigments (CAPs) having superior optical and dispersion characteristics. These pigments are produced by aggregating titanium dioxide and calcined clay with zirconium hydroxy complex chemicals in a slurry in the pH range of 6.0-10.5. Superior optical properties are obtained by heat treating the pigments after removal from the slurry. Multi-faceted pigments are obtained by including a small amount of a rod-shaped pigment, such as wollastonite, in the composite pigment.

    摘要翻译: 本发明公开了具有优异的光学和分散特性的复合聚集体颜料(CAP)的制备方法。 这些颜料通过在6.0-10.5的pH范围内的浆料中将二氧化钛和煅烧粘土与锆羟基络合物化学品凝聚而制备。 通过在从浆料中除去后对颜料进行热处理,获得优异的光学性能。 通过将少量的棒状颜料(例如硅灰石)包含在复合颜料中来获得多面颜料。