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    Process for purifying silica sand
    2.
    发明授权
    Process for purifying silica sand 失效
    二氧化硅砂的净化工艺

    公开(公告)号：US4401638A

    公开(公告)日：1983-08-30

    申请号：US333257

    申请日：1981-12-21

    Applicant: Alejandro J. Caballero ,  Ricardo I. Holcombe

    Inventor： Alejandro J. Caballero ,  Ricardo I. Holcombe

    IPC: B03B9/00 ,  B03D1/004 ,  B03D1/018 ,  B03D1/02 ,  C03C1/02 ,  C01B33/12

    CPC classification number: B03D1/02 ,  B03B9/00 ,  B03D1/002 ,  B03D1/008 ,  B03D1/01 ,  B03D1/012 ,  C03C1/022 ,  B03D2201/007 ,  B03D2201/02 ,  B03D2201/04 ,  B03D2203/005

    Abstract: A process of purifying silica sand comprises grinding sandstone, washing and desliming the ground sandstone to remove the major part of the clay-type binder, attrition-scrubbing the deslimed sand particles to release further amounts of binder therefrom, washing and desliming to remove said binder, drying and heating the sand particles, treating the hot sand with sulfuric acid to convert the iron oxides, ferrosilicates and ferro-aluminous impurities into water soluble compounds, attrition-scrubbing the hot suspension of the chemically treated sand to release the strongly adhering stains of said impurities, washing with cold water and desliming, conditioning the sand suspension with fatty acids or petroleum sulfonate collectors, a polyalcohol frothing agent and, if necessary, a mineral acid to bring the pH to from 1.5 to 7.0, carrying out a first froth-flotation to remove the remaining ferrosilicates and iron oxides, and carrying out a second froth-flotation with a fatty amine collector in the presence of sulfuric acid and/or hydrofluoric acid to activate the aluminosilicates and to remove the same at a pH of from 1.5 to 3.5.

    Abstract translation: 净化硅砂的方法包括研磨砂岩，洗涤和脱灰砂土，以除去粘土型粘合剂的主要部分，对去渣砂粒进行磨砂洗涤以从其中释放更多量的粘合剂，洗涤和脱浆以除去所述粘合剂 ，干燥和加热砂粒，用硫酸处理热砂，将铁氧化物，硅酸盐和铁 - 铝杂质转化成水溶性化合物，擦洗化学处理的砂的热悬浮液，释放强烈粘附的污渍 所述杂质，用冷水洗脱并脱蜡，用脂肪酸或石油磺酸盐收集器调节沙子悬浮液，多元醇起泡剂和必要时的无机酸使pH值达到1.5至7.0，进行第一泡沫 - 浮选以除去剩余的硅酸硅和氧化铁，并用脂肪胺收集器进行第二泡沫浮选 在硫酸和/或氢氟酸的存在下活化铝硅酸盐并在1.5至3.5的pH下除去硅铝酸盐。

    Recovery of elemental sulphur from products containing contaminated elemental sulphur by froth flotation
    4.
    发明授权
    Recovery of elemental sulphur from products containing contaminated elemental sulphur by froth flotation 失效
    通过泡沫浮选从含有污染的元素硫的产物中回收元素硫

    公开(公告)号：US4964981A

    公开(公告)日：1990-10-23

    申请号：US220668

    申请日：1989-01-25

    Applicant: Ion I. Adamache

    Inventor： Ion I. Adamache

    IPC: B03B9/00 ,  B03B9/06 ,  B03D1/001 ,  B03D1/02

    CPC classification number: B03B9/061 ,  B03B9/00 ,  B03D1/006 ,  B03D1/008 ,  B03D1/02 ,  B03D2201/02 ,  B03D2201/04 ,  B03D2203/005 ,  Y02W30/521

    Abstract: A new "cold" process for the recovery of elemental sulphur from contaminated elemental sulphur products is described. Elemental sulphur is recovered by froth flotation from: contaminated base pads of elemental sulphur blocks, stockpiles of contaminated elemental sulphur; contaminated elemental sulphur rejects from industrial handling and hauling; complex sulphur agglomerate, reject by-product from hot melting processes which is presently unprocessable and discarded (or as is otherwise referred to as "sulphur crete melt residue"); contaminated products resulting from the exploitation processes using wells for the application of heat to reservoirs in order to recover elemental sulphur; and also from other sources of contaminated elemental sulphur in the oil and gas and other industries. This process comprises the steps of coarse screening, crushing, wet grinding, sizing, classifying. Then, the wet ground slurry at ambient temperature is treated by froth flotation, removing the elemental sulphur in the froth, and transporting the undesirable contaminants to storage ponds or subsequent land reclamation. The initial elemental sulphur froth from the first stage of flotation is cleaned one or more times by reflotations. The cleaned elemental sulphur-bearing froth is then filtered to remove excess water and to produce a filter cake.

    Recovery of elemental sulphur from products containing contaminated elemental sulphur by froth flotation
    5.
    发明授权
    Recovery of elemental sulphur from products containing contaminated elemental sulphur by froth flotation 失效
    通过泡沫浮选从含有污染的元素硫的产物中回收元素硫

    公开(公告)号：US4871447A

    公开(公告)日：1989-10-03

    申请号：US14975

    申请日：1987-02-17

    Applicant: Ion I. Adamache

    Inventor： Ion I. Adamache

    IPC: B03B9/00 ,  B03B9/06 ,  B03D1/001 ,  B03D1/02

    CPC classification number: B03B9/061 ,  B03B9/00 ,  B03D1/006 ,  B03D1/008 ,  B03D1/02 ,  B03D2201/02 ,  B03D2201/04 ,  B03D2203/005 ,  Y02W30/521

    Abstract: A new "cold" process for the recovery of elemental sulphur from contaminated elemental sulphur products is described. Elemental sulphur is recovered by froth flotation from: contaminated base pads of elemental sulphur blocks, stockpiles of contaminated elemental sulphur; contaminated elemental sulphur rejects from industrial handling and hauling; complex sulphur agglomerate, reject by-product from hot melting processes which is presently unprocessable and discarded (or as is otherwise referred to as "sulphur crete melt residue"); contaminated products resulting from the exploitation processes using wells for the application of heat to reservoirs in order to recover elemental sulphur; and also from other sources of contaminated elemental sulphur in the oil and gas and other industries. This process comprises the steps of coarse screening, crushing, wet grinding, sizing, classifying. Then, the wet ground slurry at ambient temperature is treated by froth flotation, removing the elemental sulphur in the froth, and transporting the undesirable contaminants to storage ponds or subsequent land reclamation. The initial elemental sulphur froth from the first stage of flotation is cleaned one or more times by reflotations. The cleaned elemental sulphur-bearing froth is then filtered to remove excess water and to produce a filter cake.

    Abstract translation: 描述了从污染的元素硫产物回收元素硫的新的“冷”方法。 元素硫通过泡沫浮选从元素硫块的污染基垫，污染的元素硫的储存中回收; 污染的元素硫从工业处理和运输中排除; 复杂的硫附聚物，从目前不可处理和废弃的热熔化方法（或者另外称为“硫裂纹熔体残余物”）中排除副产物; 由开采过程产生的受污染的产品使用井向储层施加热量以回收元素硫; 以及石油和天然气等行业污染的元素硫的其他来源。 该方法包括粗筛，粉碎，湿磨，上浆，分选等步骤。 然后，通过泡沫浮选处理环境温度下的湿磨浆料，除去泡沫中的元素硫，并将不期望的污染物输送到储存池或随后的填土。 从浮选的第一阶段开始的初始元素硫泡沫通过重新清洗一次或多次。 然后将经清洁的元素含硫泡沫过滤以除去多余的水并产生滤饼。

    Benefication of siderite contaminated sand
    6.
    发明授权
    Benefication of siderite contaminated sand 失效
    菱铁矿污染沙的益处

    公开(公告)号：US3914385A

    公开(公告)日：1975-10-21

    申请号：US36894173

    申请日：1973-06-11

    Applicant: OWENS ILLINOIS INC

    Inventor： SLADE WOODROW W

    IPC: B03B9/00 ,  B03D1/001 ,  C01G49/00 ,  C03C1/02 ,  C01B33/12

    CPC classification number: B03B9/00 ,  B03D1/008 ,  B03D1/01 ,  B03D2201/02 ,  B03D2203/005 ,  B03D2203/04 ,  C01G49/00 ,  C03C1/022

    Abstract: Disclosed is a method for removing iron and other impurities from sand containing kaolin clay, siderite (FeCO3) and other mineral impurities, by subjecting the sand to the sequential processing steps of washing, anionic mineral froth floating, cationic sand froth floating, and acid leaching of the froth floated sand with sulfuric acid to yield a flint glass quality sand containing less than about 0.025% by weight of iron as Fe2O3.

    Abstract translation: 公开了一种通过对沙子进行洗涤，阴离子矿物泡沫漂浮，阳离子砂沫漂浮和酸浸的顺序处理步骤，从含沙的高岭土，菱铁矿（FeCO3）等矿物杂质中除去铁和其他杂质的方法。 的泡沫漂浮的沙子用硫酸产生一种火石玻璃质量的砂，其含有小于约0.025重量％的铁作为Fe 2 O 3。

    Affinity Foam Fractionation for Collection and Purification of Materials
    10.
    发明申请
    Affinity Foam Fractionation for Collection and Purification of Materials 审中-公开
    用于收集和纯化材料的亲和性泡沫分馏

    公开(公告)号：US20090008325A1

    公开(公告)日：2009-01-08

    申请号：US11912306

    申请日：2006-04-28

    Applicant: Lu-Kwang Ju ,  Qin Zhang

    Inventor： Lu-Kwang Ju ,  Qin Zhang

    IPC: B03D1/00 ,  B03B1/04 ,  B03D3/06 ,  B03D101/02 ,  B01D19/04 ,  B03D1/02

    CPC classification number: B03D1/016 ,  B03D1/008 ,  B03D1/028 ,  B03D2201/007 ,  B03D2201/02 ,  B03D2203/001 ,  B03D2203/003 ,  B03D2203/005

    Abstract: The present invention generally relates to methods for purifying and/or concentrating compounds from or in solutions and/or mixtures. In one embodiment, the present invention relates to a method for purifying and/or concentrating a compound from a solution or mixture. In another embodiment, the present invention relates to a method for purifying/concentrating a compound from a solution or mixture that utilizes, in whole or part, foam purification and/or concentration. In still another embodiment, the present invention can be used to separate, concentrate and/or purify any material, including biological products and/or biomaterials, that can be selectively bound to a binding agent, thereby yielding a complex that will readily partition onto bubble surfaces in a foam.

    Abstract translation: 本发明一般涉及从溶液和/或混合物中提取和/或浓缩化合物的方法。 在一个实施方案中，本发明涉及从溶液或混合物中纯化和/或浓缩化合物的方法。 在另一个实施方案中，本发明涉及一种从溶液或混合物中纯化/浓缩化合物的方法，该方法或混合物全部或部分地使用泡沫纯化和/或浓缩。 在另一个实施方案中，本发明可用于分离，浓缩和/或纯化任何可以选择性地结合到结合剂上的物质，包括生物产物和/或生物材料，从而产生易于分配到泡沫上的复合物 泡沫中的表面。

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