中科微点-全球专利检索

  1. Login
  2. Sign Up

Search Results

216 records (took 0.02 seconds)

    Flotation beneficiation process for non-sulfide minerals
    13.
    发明授权
    Flotation beneficiation process for non-sulfide minerals 失效
    非硫化矿物浮选精选工艺

    公开(公告)号：US4720339A

    公开(公告)日：1988-01-19

    申请号：US711924

    申请日：1985-03-15

    Applicant: D. R. Nagaraj ,  Alan S. Rothenberg ,  Alexander S. Lambert

    Inventor： D. R. Nagaraj ,  Alan S. Rothenberg ,  Alexander S. Lambert

    IPC: B03D1/016 ,  B03D1/02 ,  B03D1/14

    CPC classification number: B03D1/016 ,  B03D1/008 ,  B03D1/02 ,  B03D1/021 ,  B03D1/01 ,  B03D2201/02 ,  B03D2201/06 ,  B03D2203/04

    Abstract: An improved method of separating non-sulfide value minerals from non-sulfide ores is disclosed. The improved method includes the step of adding a depressant selective for siliceous gangue minerals and materials to a flotation slurry previously conditioned with an anionic collector. In preferred embodiments, the depressants comprise copolymers or terpolymers derived from acrylamide units and N-acrylamidoglycolic acid units. The method provides generally improved recoveries of non-sulfide value minerals at higher grade, in a reduced number of flotation steps and at reduced consumption levels of flotation reagents.

    Abstract translation: 公开了一种将非硫化物矿物与非硫化物矿石分离的改进方法。 改进的方法包括向先前用阴离子捕收剂调节的浮选浆料中添加对硅质脉石矿物和材料有选择性的抑制剂的步骤。 在优选的实施方案中，抑制剂包含衍生自丙烯酰胺单元和N-丙烯酰胺聚糖酸单元的共聚物或三元共聚物。 该方法提供了在较高等级，减少的浮选步骤数量以及降低的浮选试剂的消耗水平下的非硫化物价值矿物质的回收率。

    Separation of molybdenite from its mixture with other sulfide ores
    15.
    发明授权
    Separation of molybdenite from its mixture with other sulfide ores 失效
    从其与其他硫化矿石的混合物中分离辉钼矿

    公开(公告)号：US4425230A

    公开(公告)日：1984-01-10

    申请号：US348923

    申请日：1982-02-16

    Applicant: Carlos Andress ,  William F. Riggs

    Inventor： Carlos Andress ,  William F. Riggs

    IPC: B03D1/002 ,  B03D1/012 ,  B03D1/02 ,  B03D1/06 ,  B03D1/14

    CPC classification number: B03D1/02 ,  B03D1/002 ,  B03D1/06 ,  B03D2201/02 ,  B03D2201/06 ,  B03D2203/02

    Abstract: Dithiocarbonic acid, trithiocarbonic acid, water soluble salts of dithiocarbonic acid or trithiocarbonic acid or mixtures thereof when contacted with a mixed sulfide ore effectively depresses copper and iron sulfides thereby permitting molybdenite to be recovered by froth flotation. In copper concentrates produced by a flotation process, the organic collector reagents adhering to the surface of the copper and iron sulfides may be, and preferably are, stripped by conventional physical or chemical means prior to contacting the copper concentrate with the trithiocarbonate depressants of the invention. However, the trithiocarbonates of the invention have been found to be effective depressants of copper and iron sulfides in concentrates which are not stripped prior to treatment with the depressant.

    Abstract translation: 当与混合硫化物矿物接触时，二硫代碳酸，三硫代碳酸，二硫代碳酸或三硫代碳酸的水溶性盐或其混合物有效地抑制铜和铁硫化物，从而允许通过泡沫浮选回收辉钼矿。 在通过浮选工艺生产的铜精矿中，在将铜精矿与本发明的三硫代碳酸酯抑制剂接触之前，附着在铜和铁硫化物表面上的有机收集剂可以并且优选地通过常规的物理或化学方法去除 。 然而，已经发现本发明的三硫代碳酸酯是在用抑制剂处理之前不被汽提的浓缩物中的铜和铁硫化物的有效抑制剂。

    Method of beneficiating phosphate ores containing dolomite
    16.
    发明授权
    Method of beneficiating phosphate ores containing dolomite 失效
    选择含有白云石的磷矿石的方法

    公开(公告)号：US4372843A

    公开(公告)日：1983-02-08

    申请号：US269449

    申请日：1981-06-02

    Applicant: James E. Lawver ,  Walter O. McClintock ,  Robert E. Snow

    Inventor： James E. Lawver ,  Walter O. McClintock ,  Robert E. Snow

    IPC: B03B9/00 ,  B03D1/012 ,  B03D1/02 ,  B03D1/06

    CPC classification number: B03D1/021 ,  B03B9/00 ,  B03D1/002 ,  B03D1/012 ,  B03D2201/007 ,  B03D2201/02 ,  B03D2201/06 ,  B03D2203/06 ,  Y10S209/902

    Abstract: A method of beneficiating a phosphate ore containing silica and an alkaline earth metal carbonate impurity, particularly dolomite or calcite. The steps include testing the ore for excessive levels of carbonate impurities, the use of conventional flotation steps to remove silica, grinding the ore to a particle size in which at least 90% of the ore particles are less than 0.355 mm and thereafter reagentizing the ground phosphate containing ore with water, a carbonate collector, a phosphate depressant and a pH regulator to obtain a flotation feed having a solids level of about 20-30% and a pH of about 5.6-6.0. The flotation feed is then subjected to a reverse flotation in a flotation cell to remove carbonate impurities as the cell overflow and to collect a phosphate concentration as the cell underflow.

    Abstract translation: 一种选择含有二氧化硅和碱土金属碳酸盐杂质的磷矿的方法，特别是白云石或方解石。 这些步骤包括测试矿石含量过多的碳酸盐杂质，使用常规浮选步骤去除二氧化硅，将矿石研磨至其中至少90％的矿石颗粒小于0.355mm的粒度，然后将地面反应 磷酸盐矿石与水，碳酸盐收集器，磷酸盐抑制剂和pH调节剂，以获得具有约20-30％的固体含量和约5.6-6.0的pH的浮选进料。 然后将浮选进料在浮选槽中进行反浮选，以在细胞溢出时除去碳酸盐杂质，并收集磷酸盐浓度作为下游池。

    Direct flotation of pyrochlore
    17.
    发明授权
    Direct flotation of pyrochlore 失效
    直接浮选烧绿石

    公开(公告)号：US4342648A

    公开(公告)日：1982-08-03

    申请号：US261132

    申请日：1981-05-05

    Applicant: Rudy Biss ,  Raymond Nadeau

    Inventor： Rudy Biss ,  Raymond Nadeau

    IPC: B03B9/00 ,  B03D1/01 ,  B03D1/02 ,  B03D1/14

    CPC classification number: B03D1/01 ,  B03B9/00 ,  B03D1/002 ,  B03D1/016 ,  B03D1/02 ,  B03D2201/02 ,  B03D2201/06 ,  B03D2203/02

    Abstract: Direct flotation of pyrochlore from its ore can be carried out at acidic pH using 1-amidoethyl-2-substituted imidazolines of the formula ##STR1## wherein R and R' are independently alkyl or alkenyl of 8 to 22 carbons, or their salts. In the presence of large amounts of carbonate in the ore, the pulp is acidified with hydrofluoric acid, fluosilicic acid, or their acid reacting compounds. Using this process, pyrochlore concentrates can be obtained by direct flotation from ore containing 0.1% or more of sulphide compounds calculated as FeS.sub.2.

    Abstract translation: 烧绿石从其矿石的直接浮选可以在酸性pH下进行，使用具有式（I）的1-酰胺基乙基-2-取代咪唑啉，其中R和R'独立地为8至22个碳原子的烷基或链烯基，或它们 盐。 在矿石中存在大量碳酸盐时，用氢氟酸，氟硅酸或其酸反应化合物酸化纸浆。 使用该方法，可以通过从含有0.1％或更多的以FeS 2计算的硫化物化合物的矿石进行直接浮选来获得烧绿石浓缩物。

    Recovering copper by flotation using N-mercaptoalkyl amide depressant
    18.
    发明授权
    Recovering copper by flotation using N-mercaptoalkyl amide depressant 失效
    使用N-巯基烷基酰胺抑制剂通过浮选回收铜

    公开(公告)号：US4295962A

    公开(公告)日：1981-10-20

    申请号：US145093

    申请日：1980-04-30

    Applicant: Robert M. Parlman ,  Ralph P. Williams

    Inventor： Robert M. Parlman ,  Ralph P. Williams

    IPC: B03D1/012 ,  B03D1/06

    CPC classification number: B03D1/012 ,  B03D1/06 ,  B03D2201/02 ,  B03D2201/06 ,  B03D2203/02 ,  B03D2203/025

    Abstract: A process for recovering copper-bearing mineral sulfides from a froth-floated, metallurgical concentrate by admixing the concentrate with a sufficient amount of N-mercaptoalkyl amide to depress the copper-bearing mineral sulfides during a flotation and recovering the non-floating copper-bearing mineral sulfides from the flotation process. In an embodiment, copper-bearing mineral sulfides are subjected to flotation process in the presence of a flotation agent with recovery of floated metallurgical concentrate containing copper-bearing mineral sulfides and thereafter refloating the metallurgical concentrate with admixing with N-mercaptoalkyl amide depressant to recover the non-floating copper-bearing mineral sulfides.

    Abstract translation: 通过将浓缩物与足量的N-巯基烷基酰胺混合以在浮选期间压制含铜矿物硫化物并回收非浮动的含铜轴承，从浮沫的冶金浓缩物中回收含铜矿物硫化物的方法 矿物硫化物来自浮选过程。 在一个实施方案中，含铜矿物硫化物在浮选剂存在下进行浮选工艺，回收含有含铜矿物硫化物的浮选冶金浓缩物，然后用冶金浓缩物与N-巯基烷基酰胺抑制剂混合以回收 非浮选含铜矿物硫化物。

    Ore dressing process
    19.
    发明授权
    Ore dressing process 失效
    矿石修整工艺

    公开(公告)号：US4274951A

    公开(公告)日：1981-06-23

    申请号：US23447

    申请日：1978-12-14

    Applicant: Lionel A. Goold

    Inventor： Lionel A. Goold

    IPC: B03D1/016 ,  B03D1/02 ,  B03D1/06

    CPC classification number: B03D1/021 ,  B03D1/016 ,  B03D1/006 ,  B03D1/008 ,  B03D2201/02 ,  B03D2201/06

    Abstract: A process of dressing mineral ores in order to improve the quality of the float in the flotation of certain minerals, particularly apatite ores. The process involves adding to a mineral ore pulp a gangue depressant material comprising certain guar gum ethers whereby an improved separation of calcite and other gangue minerals from the mineral values, particularly phosphate values, is obtained.

    Abstract translation: 为了提高某些矿物，特别是磷灰石矿石浮选的浮选质量，矿石矿石的选矿过程。 该方法包括向矿石浆中添加包含某些瓜尔胶醚的脉石抑制剂材料，从而获得方解石和其它脉石矿物与矿物质特别是磷酸盐值的改进分离。

Patent Agency Ranking