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    Silver halide precipitation process with deletion of materials through the reaction vessel
    5.
    发明授权
    Silver halide precipitation process with deletion of materials through the reaction vessel 失效
    卤化银沉淀工艺，通过反应容器缺失材料

    公开(公告)号：US4336328A

    公开(公告)日：1982-06-22

    申请号：US272612

    申请日：1981-06-11

    申请人： Barry M. Brown ,  Malcolm L. Judd ,  Roger N. Schindler

    发明人： Barry M. Brown ,  Malcolm L. Judd ,  Roger N. Schindler

    IPC分类号： C01G5/02 ,  G03C1/005 ,  G03C1/015 ,  G03C1/02

    CPC分类号： G03C1/015 ,  B01D61/145 ,  B01D2319/04 ,  G03C2001/0157 ,  G03C2200/09

    摘要： An improved silver halide precipitation process of preparing a dispersion of silver halide grains is disclosed. The process comprises forming a radiation-sensitive silver halide dispersion by reacting silver and halide salts in solution within a dispersing medium to form silver halide grain nuclei within the dispersing medium and allowing silver halide grain growth to occur in a reaction vessel in which the silver halide grain nuclei and the dispersing medium are present. The improvement comprises, during silver halide grain growth, withdrawing a portion of the dispersing medium from the reaction vessel through an ultrafiltration membrane while retaining the silver halide grains within the dispersing medium remaining within the reaction vessel.

    摘要翻译： 公开了制备卤化银颗粒分散体的改进的卤化银沉淀方法。 该方法包括通过使分散介质中的溶液中的银和卤化物盐反应形成辐射敏感的卤化银分散体，以在分散介质内形成卤化银颗粒核，并使卤化银晶粒生长发生在反应容器中，其中卤化银 颗粒核和分散介质存在。 改进之处在于，在卤化银晶粒生长期间，通过超滤膜从反应容器中取出一部分分散介质，同时将卤化银颗粒保留在反应容器内的分散介质中。

    Recovery of silver from cuprous chloride solutions by co-crystallization with sodium chloride
    6.
    发明授权
    Recovery of silver from cuprous chloride solutions by co-crystallization with sodium chloride 失效
    通过与氯化钠共结晶从氯化亚铜溶液中回收银

    公开(公告)号：US4101315A

    公开(公告)日：1978-07-18

    申请号：US759846

    申请日：1977-01-17

    申请人： Mark A. Peters ,  Robert K. Johnson

    发明人： Mark A. Peters ,  Robert K. Johnson

    IPC分类号： C01G3/05 ,  C01G5/02 ,  C22B11/00 ,  C22B15/00 ,  C22B15/12 ,  C01G5/00 ,  C22B11/04

    CPC分类号： C22B15/0069 ,  C01G3/05 ,  C01G5/02 ,  C22B11/04 ,  C22B15/0086 ,  C22B15/0089 ,  Y02P10/236

    摘要： A process for recovering silver present in cuprous chloride solutions as a soluble silver chloride which comprises saturating the cuprous chloride solution with sodium chloride, subjecting the saturated solution to evaporation to co-crystallize the sodium chloride and silver chloride, separating the solid chlorides from the liquid, recovering silver from the sodium chloride-silver chloride crystals and reclaiming the sodium chloride, adding water to the liquid and cooling it to crystallize cuprous chloride. The procedure is adaptable to processes for recovering copper from its ores in which copper is reduced to cuprous chloride in a leach slurry followed by cooling the leach slurry to crystallize out the cuprous chloride from which copper is recovered by conventional techniques.

    摘要翻译： 回收作为可溶性氯化银存在的氯化亚铜溶液中的银的方法，其中包括用氯化钠饱和氯化亚铜溶液，使饱和溶液蒸发以使氯化钠和氯化银共结晶，将固体氯化物与液体分离 从氯化钠 - 氯化银晶体中回收银并回收氯化钠，向该液体中加入水并冷却以使氯化亚铜结晶。 该方法适用于从其矿石中回收铜的方法，其中将铜在浸出浆料中还原为氯化亚铜，然后冷却浸出浆料以结晶通过常规技术回收铜的氯化亚铜。

    Method for preparation of hematite iron oxide with different nanostructures and hematite iron oxide prepared thereby
    10.
    发明授权
    Method for preparation of hematite iron oxide with different nanostructures and hematite iron oxide prepared thereby 有权
    制备具有不同纳米结构的赤铁矿氧化铁和由此制备的赤铁矿氧化铁的方法

    公开(公告)号：US08865116B2

    公开(公告)日：2014-10-21

    申请号：US13670907

    申请日：2012-11-07

    申请人： Korea University Research and Business Foundation

    发明人： Jong-Sung Yu ,  Nitin Kaduba Chaudhari ,  Hyoung Chan Kim ,  Chul Sung Kim ,  Jeunghee Park

    IPC分类号： C01G5/02 ,  C01G49/06 ,  C01G49/02 ,  H01F1/00 ,  B82Y40/00 ,  B82Y25/00

    CPC分类号： C01G49/06 ,  B82Y25/00 ,  B82Y30/00 ,  B82Y40/00 ,  C01G49/02 ,  C01P2002/72 ,  C01P2002/82 ,  C01P2004/03 ,  C01P2004/04 ,  C01P2004/16 ,  C01P2004/32 ,  C01P2004/38 ,  C01P2004/40 ,  C01P2006/12 ,  C01P2006/42 ,  H01F1/0009 ,  H01F1/0072 ,  Y10S977/773 ,  Y10S977/896

    摘要： Disclosed is a method for preparing hematite iron oxide having various nanostructures, including: preparing a mixture solution by adding iron chloride and caffeine to a solvent and magnetically stirring; and performing hydrothermal synthesis, wherein the solvent is selected from water, ethanol, propanol and methanol. In accordance with the present disclosure, hematite iron oxide (α-Fe2O3) superstructures of various shapes, including grape, cube, dumbbell and microsphere shapes, can be synthesized in different solvents using caffeine. The shapes can be controlled variously via a simple one-step synthesis route without using a growth-inducing agent and without separation based on size. The prepared hematite iron oxide exhibits high coercivity at room temperature owing to its fine crystal structures and anisotropic shapes. The hematite iron oxide nanoparticles having different nanostructures prepared according to the present disclosure may be widely useful in biological and biochemical applications as a material having peroxidase mimic activity and thus capable of replacing natural enzymes.

    摘要翻译： 公开了一种制备具有各种纳米结构的赤铁矿氧化铁的方法，包括：通过向溶剂中加入氯化铁和咖啡因并进行磁力搅拌来制备混合溶液; 并进行水热合成，其中溶剂选自水，乙醇，丙醇和甲醇。 根据本公开，可以使用咖啡因在不同溶剂中合成各种形状的赤铁矿氧化铁（α-Fe2O3）上层结构，包括葡萄，立方体，哑铃和微球形状。 可以通过简单的一步合成路线，不使用生长诱导剂并且基于尺寸不分离，可以不同地控制形状。 由于其精细的晶体结构和各向异性的形状，所制备的赤铁矿氧化铁在室温下表现出高的矫顽力。 根据本公开制备的具有不同纳米结构的赤铁矿氧化铁纳米粒子可广泛用于生物和生物化学应用中，作为具有过氧化物酶模拟活性并因此能够替代天然酶的材料。