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    ENHANCED METAL RECOVERY THROUGH OXIDATION IN LIQUID AND/OR SUPERCRITICAL CARBON DIOXIDE
    51.
    发明申请
    ENHANCED METAL RECOVERY THROUGH OXIDATION IN LIQUID AND/OR SUPERCRITICAL CARBON DIOXIDE 审中-公开

    公开(公告)号：US20170240434A1

    公开(公告)日：2017-08-24

    申请号：US15419184

    申请日：2017-01-30

    Applicant: KING ABDULLAH UNIVERSITY OF SCIENCE AND TECHNOLOGY

    Inventor： Mario BLANCO ,  Ulrich BUTTNER

    IPC: C01G49/14 ,  C22B1/11

    CPC classification number: C01G49/14 ,  C22B1/11 ,  C22B3/12 ,  Y02P10/234 ,  Y02P20/544

    Abstract: Process for enhanced metal recovery from, for example, metal-containing feedstock using liquid and/or supercritical fluid carbon dioxide and a source of oxidation. The oxidation agent can be free of complexing agent. The metal-containing feedstock can be a mineral such as a refractory mineral. The mineral can be an ore with high sulfide content or an ore rich in carbonaceous material. Waste can also be used as the metal-containing feedstock. The metal-containing feedstock can be used which is not subjected to ultrafine grinding. Relatively low temperatures and pressures can be used. The metal-containing feedstock can be fed into the reactor at a temperature below the critical temperature of the carbon dioxide, and an exotherm from the oxidation reaction can provide the supercritical temperature. The oxidant can be added to the reactor at a rate to maintain isothermal conditions in the reactor. Minimal amounts of water can be used as an extractive medium.

    BIOTECHNOLOGICAL PROCEDURE TO REMOVE MAGNETIC SULFUR IMPURITIES FROM IRON CONCENTRATE ORES
    52.
    发明申请
    BIOTECHNOLOGICAL PROCEDURE TO REMOVE MAGNETIC SULFUR IMPURITIES FROM IRON CONCENTRATE ORES 审中-公开
    从铁矿浓缩物中除去磁性硫污染的生物化学方法

    公开(公告)号：US20170058377A1

    公开(公告)日：2017-03-02

    申请号：US14836615

    申请日：2015-08-26

    Applicant: BIOSIGMA S.A.

    Inventor： Roberto Andrés Bobadilla Fazzini

    IPC: C22B3/18 ,  C22B1/11 ,  C22B61/00 ,  C12R1/01

    CPC classification number: C22B3/18 ,  C22B1/11 ,  Y02P10/234

    Abstract: Present invention describes a biotechnological procedure to remove magnetic sulfur impurities from iron concentrate, CHARACTERIZED because it includes: to bioleach iron concentrate ores agglomerated in heaps under temperature condition between 5 and 35° C., inoculating the iron concentrate ores with Acidithiobacillus thiooxidans cultures, with an inoculum concentration 104 and 106 cel/g and addition of water supplemented with nitrogen and phosphorous source (0.01 to 0.5 g (NH4)2HPO4/L), without potassium addition, adjusting pH between 1.0 and 9.0, and a feeding rate between 5 and 15 L/h/m2; this procedure allows a removal efficiency above 80% in 21 days, with a maximum iron loss of 3%.

    Abstract translation: 本发明描述了从铁精矿中除去磁性硫杂质的生物技术程序，其特征在于它包括：在5至35℃的温度条件下将沉淀的铁精矿矿石堆积在堆中，用硫酸氧化硫杆菌培养物接种铁浓缩物矿石， 接种物浓度104和106cd / g，并加入补充有氮和磷源（0.01至0.5g（NH 4）2 HPO 4 / L）的水），不加钾，调节pH在1.0和9.0之间，并且进料速率在5和 15 L / h / m2; 该程序允许21天内的去除效率高于80％，最大铁损为3％。

    Process for desulfurization of coal and ores
    55.
    再颁专利
    Process for desulfurization of coal and ores 失效
    煤和矿石脱硫工艺

    公开(公告)号：USRE32454E

    公开(公告)日：1987-07-07

    申请号：US266631

    申请日：1981-05-26

    Applicant: Arthur E. Starbuck

    Inventor： Arthur E. Starbuck

    IPC: C01B17/033 ,  C10L9/02 ,  C22B1/11 ,  E04B2/02 ,  E04C1/40

    CPC classification number: C01B17/033 ,  C10L9/02 ,  C22B1/11 ,  E04C1/40 ,  E04B2002/0234

    Abstract: A continuous process of desulfurizing coal and other ores contaminated with sulfur and recovering the sulfur in relatively pure crystal form, the process for coal including the steps of crushing sulfur bearing coal ore, mixing the crushed ore in a solvent forming a solvent liquor in which the sulfur is dissolved, centrifuging the solvent liquor separating a coal slurry from the solvent liquor, centrifuging the coal slurry separating the coal from the tailings including rare metals for further refining to recover the rare metals, drying the coal slurry and recovering the solvent, filtering the remaining solvent liquor removing ash, crystallizing the sulfur in the filtered solvent, centrifugally separating the crystallized sulfur from the solvent and recovering the solvent, drying the crystallized sulfur and further recovering the solvent, heating the crystallized sulfur to form a sulfur liquid and casting the sulfur in preformed molds to produce building materials.

    Process for treating sulfide-bearing ores
    56.
    发明授权
    Process for treating sulfide-bearing ores 失效
    处理含硫矿石的方法

    公开(公告)号：US4376647A

    公开(公告)日：1983-03-15

    申请号：US235177

    申请日：1981-02-17

    Applicant: Hong Y. Sohn

    Inventor： Hong Y. Sohn

    IPC: C22B1/11 ,  C22B15/00 ,  C22B19/02 ,  C22B34/34 ,  C22B43/00 ,  C22B1/02

    CPC classification number: C22B19/02 ,  C22B1/11 ,  C22B15/0006 ,  C22B34/34 ,  C22B43/00

    Abstract: A process for removing sulfur from sulfide-bearing ores by reacting water vapor with the sulfide-bearing ore forming hydrogen sulfide while simultaneously regenerating water vapor by reacting the hydrogen sulfide with lime. Advantageously, the process occurs in the absence of a net consumption or production of gaseous species so that the process can be carried out in a closed system with respect to the gaseous species. Sulfide-bearing ores which can be treated using the process of this invention include sulfide-bearing ores of molybdenum, zinc, iron, mercury, and copper. Advantageously, the molybdenum oxide so produced from the sulfide-bearing ore of molybdenum can be reacted further with lime and water producing calcium molybdate and hydrogen. The chalcopyrite form of the sulfide-bearing ore of copper produces bornite and magnetite.

    Abstract translation: 通过使水蒸气与形成硫化氢的含硫化物矿石反应，同时通过使硫化氢与石灰反应而再生水蒸气，从含硫矿石矿中除去硫的方法。 有利的是，该过程发生在没有净消耗或生产气态物质的情况下，使得该方法可以在关于气态物质的封闭系统中进行。 可以使用本发明的方法处理的含硫矿石包括含钼，锌，铁，汞和铜的含硫化物矿石。 有利的是，由含硫化物的钼矿产生的氧化钼可进一步与产生钼酸钙和氢的石灰和水反应。 铜的含硫矿物的黄铜矿形式产生斑岩和磁铁矿。

    Process for beneficiating oxide ores
    59.
    发明授权
    Process for beneficiating oxide ores 失效
    有利于氧化矿石的工艺

    公开(公告)号：US4205979A

    公开(公告)日：1980-06-03

    申请号：US950176

    申请日：1978-10-10

    Applicant: James K. Kindig ,  Ronald L. Turner

    Inventor： James K. Kindig ,  Ronald L. Turner

    IPC: B03C1/00 ,  B03C1/30 ,  C22B1/00 ,  C22B1/11 ,  C22B3/16 ,  C22B3/26 ,  C22B1/06

    CPC classification number: C22B3/0018 ,  B03C1/00 ,  B03C1/30 ,  C22B1/00 ,  C22B1/11 ,  C22B3/0021 ,  C22B3/16 ,  C22B3/1641 ,  C22B3/1658 ,  Y02P10/234

    Abstract: In a process for beneficiating one or more mineral values of a metal oxide ore selected from the group consisting of bauxite, taconite, chrysocolla, apatite, titanium oxides and the metal oxides of Groups IIIB, IVB, VB, VIB, VIIB, VIIIB, IB, IIB and IVA by treating the ore with a metal containing compound, preferably iron carbonyl, under conditions such as to selectively enhance the magnetic susceptibility of the mineral values to the exclusion of the gangue in order to permit a separation between the values and gangue, the improvement comprising pretreating the metal oxide ore by heating it to a temperature of at least about 80.degree. C. for a time period of at least about 0.1 hours.

    Abstract translation: 在选自由铝土矿，铁铁矿，金银花，磷灰石，钛氧化物和IIIB，IVB，VB，VIB，VIIB，VIIIB，IBB族的IBB，VIIB，VIIIB，IBB， ，IIB和IVA，通过在含有金属的化合物，优选铁羰基的情况下处理矿石，在诸如选择性地增强矿物值的磁化率以排除ang石之前，以允许该值与ang石之间的分离， 改进包括通过将金属氧化物矿石加热至至少约80℃的温度至少约0.1小时的时间来预处理。

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