中科微点-全球专利检索

  1. Login
  2. Sign Up

Search Results

308 records (took 0.014 seconds)

    Use of derivatives of tricyclo-(5.2.1.02,6)-dec-3-ene as frothers in the flotation of coal and ores
    81.
    发明授权
    Use of derivatives of tricyclo-(5.2.1.02,6)-dec-3-ene as frothers in the flotation of coal and ores 失效
    在矿石和矿石浮选中使用三环（5.2.1.02,6） - 癸-3-烯的衍生物作为起泡剂

    公开(公告)号：US4925559A

    公开(公告)日：1990-05-15

    申请号：US164166

    申请日：1988-03-04

    Applicant: Manfred Biermann ,  Rita Koester ,  Horst Eierdanz

    Inventor： Manfred Biermann ,  Rita Koester ,  Horst Eierdanz

    IPC: B03D1/02 ,  B03D1/008

    CPC classification number: B03D1/008 ,  B03D2201/04 ,  B03D2203/08

    Abstract: Derivatives of tricyclo-[5.2.1.0.sup.2,6 ]-dec-3-ene corresponding to the following general formula ##STR1## in which R.sup.1 is hydrogen; a linear or branched C.sub.1 -C.sub.8 alkyl radical; an acyl radical R.sup.2 -CO, where R.sup.2 is hydrogen or a linear or branched C.sub.1 -C.sub.18 alkyl or alkenyl radical; or a hydroxyalkyl radical ##STR2## in which R.sup.3 and R.sup.4 independently of one another may be hydrogen or a hydroxy group and m and n are integers of 0 to 5 and the sum (m+n) is an integer of 1 to 5, with the proviso that at least one of the radicals R.sup.3 and R.sup.4 is a hydroxy group; are used as frothers in the flotation of coal and ores.

    Abstract translation: 对应于下列通式（Ⅰ）的三环[5.2.1.02,6]癸烯-3-酮的衍生物，其中R1是氢; 直链或支链C 1 -C 8烷基; 酰基R2-CO，其中R2是氢或直链或支链C1-C18烷基或烯基; 或其中R 3和R 4彼此独立地为羟基或羟基的羟基烷基基团，其中m和n为0〜5的整数，且和（m + n）为1〜5的整数，与 条件是基团R 3和R 4中的至少一个是羟基; 用作浮选煤和矿石中的起泡剂。

    Selective flotation of inorganic sulfides from coal
    82.
    发明授权
    Selective flotation of inorganic sulfides from coal 失效
    从煤中选择性浮选无机硫化物

    公开(公告)号：US4867868A

    公开(公告)日：1989-09-19

    申请号：US200100

    申请日：1988-05-31

    Applicant: Kenneth J. Miller ,  Wu-Wey Wen

    Inventor： Kenneth J. Miller ,  Wu-Wey Wen

    IPC: B03D1/001 ,  B03D1/02

    CPC classification number: B03D1/02 ,  B03D1/008 ,  B03D1/012 ,  B03D2201/02 ,  B03D2201/04 ,  B03D2201/06 ,  B03D2203/02 ,  B03D2203/08

    Abstract: Pyritic sulfur is removed from coal or other carbonaceous material through the use of humic acid as a coal flotation depressant. Following the removal of coarse pyrite, the carbonaceous material is blended with humic acid, a pyrite flotation collector and a frothing agent within a flotation cell to selectively float pyritic sulfur leaving clean coal as an underflow.

    Abstract translation: 通过使用腐殖酸作为煤浮选抑制剂，从煤或其他碳质材料中除去硫铁矿。 除去粗黄铁矿后，碳质材料与浮选槽内的腐殖酸，黄铁矿浮选捕收剂和起泡剂混合，以选择性地将黄铁矿硫离开清洁煤作为下溢。

    Selective resin flotation from coal by controlled oxidation
    84.
    发明授权
    Selective resin flotation from coal by controlled oxidation 失效
    通过控制氧化从煤中选择性树脂浮选

    公开(公告)号：US4724071A

    公开(公告)日：1988-02-09

    申请号：US920125

    申请日：1986-10-17

    Applicant: Jan D. Miller ,  Ye Yi

    Inventor： Jan D. Miller ,  Ye Yi

    IPC: B03B1/00 ,  B03D1/002 ,  B03D1/02

    CPC classification number: B03B1/00 ,  B03D1/002 ,  B03D1/0043 ,  B03D1/008 ,  B03D1/02 ,  B03D2201/04 ,  B03D2203/08

    Abstract: Disclosed is a process for separating resin from reduced size resin-bearing coal particles by treating the particles with ozone. Particles of reduced size resin-bearing coal are preferably mixed with water to form a slurry. The slurry is then treated with ozone for a short length of time. The slurry is then subjected to froth flotation. The ozone selectively oxidizes the coal, decreasing its hydrophobicity causing the relatively more hydrophobic resin to attach to the bubbles formed during the flotation process. A much improved separation efficiency for resin flotation from coal is observed.

    Abstract translation: 本发明公开了一种通过用臭氧处理颗粒从减小尺寸的含树脂的煤颗粒中分离树脂的方法。 减小尺寸的含树脂煤的颗粒优选与水混合以形成浆料。 然后将该浆料用臭氧处理短时间。 然后将浆料进行泡沫浮选。 臭氧选择性地氧化煤，降低其疏水性，导致相对较疏水的树脂附着于在浮选过程中形成的气泡。 观察到来自煤的树脂浮选的分离效率大大提高。

    Froth flotation method for recovering metal values with polyhydroxy fatty acids
    87.
    发明授权
    Froth flotation method for recovering metal values with polyhydroxy fatty acids 失效
    用多羟基脂肪酸回收金属值的泡沫浮选方法

    公开(公告)号：US4455223A

    公开(公告)日：1984-06-19

    申请号：US416288

    申请日：1982-09-09

    Applicant: Vojislav Petrovich

    Inventor： Vojislav Petrovich

    IPC: B03D1/008 ,  B03D1/14

    CPC classification number: B03D1/008 ,  B03D1/002 ,  B03D1/018 ,  B03D2201/02 ,  B03D2201/04 ,  B03D2203/04

    Abstract: An improved method in concentration of oxide ores by froth flotation process which comprises subjecting a sufficiently fine sized ore of a metal which can change the valency state from lower to higher by the action of inorganic oxidizing compounds in the presence of an effective amount of a polyhydroxy fatty acid collector-frother; the indicated compounds provide selectivity and/or recovery of oxide minerals of iron, chromium, cerium, antimony, arsenic, titanium, zirconium, thorium, vanadium, niobium, tantalum, and wolfram, over silica and silicate gangue.

    Abstract translation: 一种通过泡沫浮选方法提高氧化物矿石浓度的方法，该方法包括：在有效量的多羟基化合物的存在下，通过无机氧化化合物的作用使经过足够细小尺寸的金属矿石，其可以将价态从低到高改变 脂肪酸收集器 所指示的化合物在二氧化硅和硅酸盐g石上提供铁，铬，铈，锑，砷，钛，锆，钍，钒，铌，钽和钨的氧化物矿物的选择性和/或回收。

    Froth flotation of ores
    89.
    发明授权
    Froth flotation of ores 失效
    矿石泡沫浮选

    公开(公告)号：US4362552A

    公开(公告)日：1982-12-07

    申请号：US7314

    申请日：1979-01-29

    Applicant: Vojislav Petrovich

    Inventor： Vojislav Petrovich

    IPC: B03D1/008 ,  B03D1/01 ,  B03D1/02 ,  C01G39/02 ,  C01G41/02 ,  C22B3/00

    CPC classification number: B03D1/02 ,  B03D1/008 ,  B03D1/01 ,  C01G39/02 ,  C01G41/02 ,  B03D2201/02 ,  B03D2201/04 ,  B03D2203/04

    Abstract: Beneficiation of metallic ores selected from the group of zinc, bismuth, cobalt, nickel, titanium, zirconium, thorium, chromium, molybdenum, wolfram, and uranium, by froth flotation process using commercial amines in conjunction with oxalic acid or alkali oxalates to obtain pure concentrates of said metal values comprises; adding to a water suspension of finely divided ore of amine type collectors and an adequate amount of oxalic acid or a soluble oxalate which acting in conjunction activate and levitate in the froth by usual froth flotation process the metal values of zinc, bismuth, cobalt, nickel, titanium, zirconium, chromium, and uranium minerals; and for molybdenum and wolfram recovering the pulp of mineral slurry are oxidized with hydrogen peroxide, or any strong oxidizing agent and proceed as described above.

    Abstract translation: 通过使用商业胺与草酸或碱草酸盐结合的泡沫浮选法，从锌，铋，钴，镍，钛，锆，钍，铬，钼，钨和铀中选出的金属矿石的获得，以获得纯 所述金属值的浓缩物包括： 加入细碎的胺型收集器的水悬浮液和足够量的草酸或可溶性草酸盐，其通过通常的泡沫浮选法在泡沫中起作用并浮起，锌，铋，钴，镍的金属值 ，钛，锆，铬和铀矿物; 并且对于钼和钨回收矿物浆料的纸浆，用过氧化氢或任何强氧化剂氧化并如上所述进行。

Patent Agency Ranking