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101 条记录 (耗时 0.025 秒)

    Treatment of mineral materials
    12.
    发明申请
    Treatment of mineral materials 有权
    矿物材料处理

    公开(公告)号：US20030010714A1

    公开(公告)日：2003-01-16

    申请号：US09866967

    申请日：2001-05-29

    发明人： Michael Gerard Gallagher ,  Hal G. Smith ,  Steven Adkins ,  Anne Frances Hooley ,  Brian Dymond

    IPC分类号： B01D017/00 ,  C01F003/00

    CPC分类号： B09B1/00 ,  B09B3/00 ,  C01F7/066 ,  C02F1/56 ,  C02F11/008 ,  C02F2103/10 ,  C02F2103/16

    摘要： A process in which material comprising an aqueous liquid with dispersed particulate solids is pumped as a fluid then allowed to stand and rigidify and the rigidification is improved whilst retaining the pumpability of the material by combining polymeric particles with the material during or prior to pumping the material, wherein the polymeric particles comprise water soluble polymer which has an intrinsic viscosity of at least 3 dl/g. The process of the invention more effectively minimises the area taken up by a stack of the material of given volume whilst maintaining the pumpability of the material. This invention is particularly suited to material that comprises red mud from the Bayer alumina process.

    摘要翻译： 其中包含具有分散的颗粒固体的水性液体的材料作为流体被泵送，然后被允许静置和刚性化，并且刚性化得到改善，同时通过在泵送材料期间或之前将聚合物颗粒与材料组合来保持材料的可泵送性 ，其中所述聚合物颗粒包含特性粘度为至少3dl / g的水溶性聚合物。 本发明的方法更有效地最小化了由给定体积的材料的堆叠所占据的面积，同时保持材料的可泵送性。 本发明特别适合于包含拜耳氧化铝工艺的红泥的材料。

    Reclamation treatment of red mud
    15.
    发明授权
    Reclamation treatment of red mud 失效
    红泥填海处理

    公开(公告)号：US4119698A

    公开(公告)日：1978-10-10

    申请号：US884014

    申请日：1978-03-06

    申请人： Erich Zimmer ,  Ahmad Nafissi ,  Gunther Winkhaus

    发明人： Erich Zimmer ,  Ahmad Nafissi ,  Gunther Winkhaus

    IPC分类号： C01F7/06 ,  C01F7/32 ,  C01G23/053 ,  C22B3/08 ,  C22B34/12 ,  C01G23/06

    CPC分类号： C01G23/0532 ,  C01F7/066 ,  C01F7/32 ,  C22B3/08 ,  C22B34/125 ,  C22B34/1259 ,  Y02P10/234

    摘要： The red mud by-product of the Bayer process by which aluminum oxide is reed from bauxite as an aluminate, is digested with concentrated sulfuric acid or with sulfur trioxide gas to produce sulfates that can be leached out to the resulting mass with water. The solution is then heated at a pH of 1 to precipitate titanium oxide hydrate by hydrolysis. The remaining sulfates of the solution are then obtained in solid form by evaporation, or by precipitation with acetone, and the solid is then roasted to convert the aluminum and iron to the oxide. After leaching out the sodium sulfate with water, the aluminum and iron oxide are separated by the Bayer process, which works in this case even though x-ray diffusion patterns show that the aluminum oxide is mainly .alpha.Al.sub.2 O.sub.3.

    摘要翻译： 用铝酸盐从铝土矿中除去氧化铝的拜耳法的红泥副产物用浓硫酸或三氧化硫气体消化以产生硫酸盐，其可以用水浸出所得物料。 然后将溶液在pH为1下加热以通过水解沉淀出氧化钛水合物。 然后通过蒸发或通​​过用丙酮沉淀获得固体形式的溶液的剩余硫酸盐，然后将固体焙烧以将铝和铁转化为氧化物。 在用水浸出硫酸钠后，铝和氧化铁通过拜耳法分离，这在这种情况下工作，即使x射线扩散图案显示氧化铝主要是αAl 2 O 3。

    NOVEL INORGANIC, HALOGEN-FREE FLAMEPROOFING AGENT ON THE BASIS OF CHEMICALLY MODIFIED RECARBONIZED RED MUD
    18.
    发明申请
    NOVEL INORGANIC, HALOGEN-FREE FLAMEPROOFING AGENT ON THE BASIS OF CHEMICALLY MODIFIED RECARBONIZED RED MUD 有权
    新型无机，无卤素灭火剂，基于化学修饰的红色泥浆

    公开(公告)号：US20150353830A1

    公开(公告)日：2015-12-10

    申请号：US14762403

    申请日：2014-01-16

    申请人： FLUORCHEMIE GMBH FRANKFURT

    发明人： Christian Rocktäschel

    IPC分类号： C09K21/02 ,  G10K11/165 ,  C08J9/00 ,  H05K9/00 ,  C08K3/34 ,  F16L59/02 ,  C09K5/14

    CPC分类号： C08K3/016 ,  C01F7/066 ,  C01P2002/72 ,  C01P2002/88 ,  C01P2006/12 ,  C04B18/0409 ,  C04B2103/63 ,  C05D3/02 ,  C05D9/02 ,  C05F7/005 ,  C08J9/0066 ,  C08J2323/08 ,  C08K3/346 ,  C08K11/005 ,  C09K5/14 ,  C09K8/03 ,  C09K8/032 ,  C09K21/02 ,  F16L59/028 ,  G10K11/162 ,  G10K11/165 ,  G21F1/042 ,  G21F1/06 ,  G21F1/103 ,  H05K9/0081 ,  Y02W30/91 ,  C04B20/023

    摘要： The present invention relates to an inorganic, halogen-free flameproofing agent produced from modified, recarbonized red mud (MKRS-HT) having a mineral composition of 10 to 50 weight percent of iron compounds, 12 to 35 weight percent of aluminum compounds, 5 to 17 weight percent of silicon compounds, 2 to 10 weight percent of titanium dioxide, 0.5 to 6 weight percent of calcium compounds and optionally unavoidable impurities, the weight ratio of Fe (II) carbonate to the oxides of iron being at least 1. The flame proofing agent according to the invention can be used as a flame retardant in the high-temperature range; The invention further relates to an inorganic, halogen-free flameproofing agent produced from modified, recarbonized and rehydrated red mud, which can be used as a flame retardant both in the low-temperature range as well as in the high-temperature range, and to methods for producing same and the use thereof as flame retardants, substitutes or surrogates, synergists, thermal stabilizers, heat accumulators, heat insulators and/or sound insulators and/or as electromagnetic radiation shielding materials.

    摘要翻译： 本发明涉及一种无机无卤素防火剂，其由具有10至50重量％铁化合物，12至35重量％铝化合物，5至5重量％的矿物组合物的改性重碳酸红泥（MKRS-HT） 17重量％的硅化合物，2至10重量％的二氧化钛，0.5至6重量％的钙化合物和任选的不可避免的杂质，碳酸铁（II）与铁的氧化物的重量比为至少1.火焰 本发明的防霉剂可用作高温范围内的阻燃剂; 本发明还涉及由改性的重碳酸盐和再水化红泥制成的无机，无卤素的防火剂，其可以在低温范围和高温范围内用作阻燃剂，并且 阻燃剂，代用品或替代物，增效剂，热稳定剂，蓄热器，绝热体和/或声音绝缘体和/或电磁辐射屏蔽材料的制备方法及其用途。