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    PROCESS FOR SELECTIVE RECOVERY OF BITUMEN FROM OIL SANDS SLURRIES BY COLUMN FLOTATION
    4.
    发明申请
    PROCESS FOR SELECTIVE RECOVERY OF BITUMEN FROM OIL SANDS SLURRIES BY COLUMN FLOTATION 审中-公开
    通过柱状浮选从石油泥浆中选择性回收的方法

    公开(公告)号：US20080121567A1

    公开(公告)日：2008-05-29

    申请号：US11947143

    申请日：2007-11-29

    申请人： David W. LIN ,  Hector M. LIZAMA

    发明人： David W. LIN ,  Hector M. LIZAMA

    IPC分类号： B03B1/00

    CPC分类号： B03D1/02

    摘要： A process is provided for obtaining flotation froth with a predetermined solids content by manipulating the bias of a flotation column. The flotation column is used for the flotation of an oil sands slurry, for example oil sands middlings, where bitumen is separated from mineral particles. Bitumen, which is hydrophobic, adheres to rising air bubbles to make a bitumen concentrate. Solids being mostly hydrophilic, report to the column underflow as flotation tails.

    摘要翻译： 提供了通过操纵浮选塔的偏压来获得具有预定固体含量的浮选泡沫的方法。 浮选柱用于浮选油砂浆料，例如油砂中空，其中沥青与矿物颗粒分离。 沥青是疏水的，坚持上升的气泡，使沥青浓缩。 固体主要是亲水性的，作为浮选尾部报告柱下流。

    Apparatus and method for the desulfurization of petroleum by bacteria
    5.
    发明授权
    Apparatus and method for the desulfurization of petroleum by bacteria 失效
    细菌对石油脱硫的装置和方法

    公开(公告)号：US5458752A

    公开(公告)日：1995-10-17

    申请号：US327265

    申请日：1994-10-21

    申请人： Hector M. Lizama ,  Timothy C. Scott ,  Charles D. Scott

    发明人： Hector M. Lizama ,  Timothy C. Scott ,  Charles D. Scott

    IPC分类号： B01J14/00 ,  B01J19/08 ,  B03C5/00 ,  B03C5/02 ,  C10G32/00

    CPC分类号： B01J14/00 ,  B01J19/087 ,  B03C5/00 ,  B03C5/02 ,  C10G32/00 ,  B01J2219/0809 ,  B01J2219/0813 ,  B01J2219/0835 ,  B01J2219/0888

    摘要： A method for treating petroleum with anaerobic microorganisms acting as biocatalysts that can remove sulfur atoms from hydrocarbon molecules, under anaerobic conditions, and then convert the sulfur atoms to hydrogen sulfide. The microorganisms utilized are from the family known as the "Sulfate Reducing Bacteria." These bacteria generate metabolic energy from the oxidation of organic compounds, but use oxidized forms of sulfur as an electron acceptor. Because the biocatalyst is present in the form of bacteria in an aqueous suspension, whereas the reacting substrate consists of hydrocarbon molecules in an organic phase, the actual desulfurization reaction takes place at the aqueous-organic interphase. To ensure adequate interfacial contacting and mass transfer, a biphasic electrostatic bioreactor system is utilized. The bioreactor is utilized to disperse and recoalesce a biocatalyst contained in the aqueous liquid phase into the organic liquid phase containing the sulfur. High-intensity electrical fields rupture the aqueous drops into a plurality of microdroplets and induce continuous coalescence and redispersion as the microdroplets travel through the organic phase, thus increasing surface area. As the aqueous microdroplets progress through the organic phase, the biocatalyst then reacts with the sulfur to produce hydrogen sulfide which is then removed from the bioreactor. The organic liquid, now free of the sulfur, is ready for immediate use or further processing.

    摘要翻译： 一种用厌氧微生物作为生物催化剂处理石油的方法，其可在厌氧条件下从烃分子中除去硫原子，然后将硫原子转化成硫化氢。 所用的微生物来自被称为“硫酸盐还原细菌”的家族。 这些细菌从有机化合物的氧化产生代谢能，但使用氧化形式的硫作为电子受体。 因为生物催化剂以水性悬浮液的形式存在，而反应底物由有机相中的烃分子组成，实际的脱硫反应发生在水 - 有机相界面。 为了确保足够的界面接触和传质，使用了双相静电生物反应器系统。 生物反应器用于将包含在水性液相中的生物催化剂分散并还原到含有硫的有机液相中。 高强度电场将水滴破碎成多个微滴，并随着微滴流过有机相而引起连续聚结和再分散，从而增加表面积。 随着含水微滴进入有机相，生物催化剂随后与硫反应产生硫化氢，然后从生物反应器中除去硫化氢。 现在没有硫的有机液体可以立即使用或进一步加工。

    RECOVERY OF RESIDUAL COPPER FROM HEAP LEACH RESIDUES
    6.
    发明申请
    RECOVERY OF RESIDUAL COPPER FROM HEAP LEACH RESIDUES 有权
    从废弃沥青残渣中恢复残留铜

    公开(公告)号：US20110303051A1

    公开(公告)日：2011-12-15

    申请号：US13160107

    申请日：2011-06-14

    申请人： Jose Alberto Gonzalez ,  Christian Ruben Jara Heck ,  Hector M. Lizama

    发明人： Jose Alberto Gonzalez ,  Christian Ruben Jara Heck ,  Hector M. Lizama

    IPC分类号： C22B60/02 ,  C22B11/00 ,  C22B15/00

    CPC分类号： C22B15/0002 ,  C22B15/0065 ,  C22B15/0071 ,  Y02P10/236

    摘要： A process for recovering copper from heap leach residues, the process comprising treating heap leach residues to provide treated heap leach residues providing improved permeability of a heap of the treated heap leach residues, and leaching the heap of the treated heap leach residues with a leaching solution. Treating the heap leach residues includes: a) blending the heap leach residues with additional material to provide a blend; or b) agglomerating the heap leach residues; or c) both blending the heap leach residues with additional material and agglomerating.

    摘要翻译： 一种从堆浸残渣中回收铜的方法，该方法包括处理堆浸残渣以提供经处理的堆浸残渣，提供处理过的堆浸渣残渣堆的改进的渗透性，以及用浸出溶液浸出处理过的堆浸残渣堆 。 处理堆浸残渣包括：a）将堆浸残渣与另外的材料混合以提供混合物; 或b）堆积堆浸残渣; 或c）将堆浸残渣与附加材料混合并进行附聚。

    Selective bioleaching of zinc
    7.
    发明授权
    Selective bioleaching of zinc 失效
    锌的选择性生物浸出

    公开(公告)号：US6103204A

    公开(公告)日：2000-08-15

    申请号：US989180

    申请日：1997-12-11

    申请人： Hector M. Lizama ,  Robert G. Frew ,  Cherian C. Abraham

    发明人： Hector M. Lizama ,  Robert G. Frew ,  Cherian C. Abraham

    IPC分类号： C01G9/00 ,  C22B3/18 ,  C22B19/00

    CPC分类号： C01G9/00 ,  C22B19/22 ,  C22B3/18 ,  Y02P10/234

    摘要： A method of selectively leaching zinc from a source material containing zinc in sulphide form and iron, comprises the steps of subjecting the source material to bioleaching with a strict sulphur oxidizing micro organism or a mixed culture of sulphur oxidizing and iron oxidizing micro organisms, in the presence of a nutrient solution containing less than about 15 mg/L phosphate ions. In another embodiment, the source material is in the form of a slurry having a solids concentration of at least about 25% on a weight per volume basis and a nutrient solution containing from about 1 mg/L to less than about 100 mg/L ammonium ions, from about 0.5 mg/L to less than about 40 mg/L magnesium ions and from about 2 mg/L to less than about 60 mg/L phosphate ions.

    摘要翻译： 从含有硫化锌和铁的锌的源材料中选择性浸出锌的方法包括以下步骤：用严格的硫氧化微生物或硫氧化和氧化铁微生物的混合培养物对源材进行生物浸出， 含有少于约15mg / L磷酸根离子的营养液的存在。 在另一个实施方案中，源材料为浆料形式，其固体浓度为每体积重量至少约25％，含有约1mg / L至小于约100mg / L铵的营养液 离子，约0.5mg / L至小于约40mg / L的镁离子和约2mg / L至小于约60mg / L的磷酸根离子。