| 序号 | 专利名 | 申请号 | 申请日 | 公开（公告）号 | 公开（公告）日 | 发明人 |
|---|---|---|---|---|---|---|
| 101 | Method for separating arsenic mineral from copper-bearing material with high arsenic grade | US13577353 | 2011-02-03 | US08685350B2 | 2014-04-01 | Hideyuki Okamoto; Yoshiyuki Tanaka; Tsuyoshi Hirajima; Keiko Sasaki |
| Disclosed herein is a method for separating an arsenic mineral from a copper-bearing material, including the steps of grinding a copper-bearing material containing arsenic, adding water to the copper-bearing material to prepare a slurry, and adding a flotation agent including a depressant, a frother, and a collector to the slurry and blowing air into the slurry for performing flotation to obtain a copper concentrate, wherein the depressant is a chelator. As the chelator, a polyethyleneamine or the like is used. Particularly, when triethylenetetramine is used as the chelator, the amount of triethylenetetramine to be added is preferably 1 to 10 equivalents relative to the amount of soluble copper generated by oxidation of the copper-bearing material, and the pH of the slurry is more preferably adjusted to 7 or more but 8 or less before the slurry is subjected to the flotation. | ||||||
| 102 | Agent for dressing of phosphate ore | US10276211 | 2002-11-14 | US20030146136A1 | 2003-08-07 | Gernot Kremer; Klaus Ulrich Pedain; Juan Balassa; Pablo Lopez |
| Agent for dressing phosphate ores The invention relates to a flotation agent for phosphate ore, comprising a fatty acid as collector and alkoxylated alkylphenols as dispersing agents, characterized in that the alkylphenols are composed of a) 8 to 20% by weight of one or more dialkylphenols having alkyl radicals from 8 to 12 carbon atoms b) 80 to 92% by weight of one or more monoalkylphenols having alkyl radicals from 8 to 12 carbon atoms, which have been alkoxylated with 2 to 6 mol of ethylene oxide. | ||||||
| 103 | Mineral ore flotation aid | US09847125 | 2001-05-02 | US06536595B2 | 2003-03-25 | Corey J. Kowalski; Russell A. Smith; Donald C. Roe |
| In accordance with the present invention, there is provided a method of improving the separation of mineral values from their associated gangue. The method itself involves the addition of an effective amount of a treatment reagent to the froth flotation process which enhances the ore recovery. The treatment reagents of the method of the present invention comprise water-soluble organophosphonates which when added to the flotation feed slurry enhance the recovery of ore values thertefrom. The organophosphonate treatment reagent may be used alone or in combination with a polymeric dispersant. | ||||||
| 104 | Kaolin clays which are conditioned prior to removing impurities | US967070 | 1997-11-10 | US6007618A | 1999-12-28 | Joseph Allen Norris; Jorge L. Yordan |
| Kaolin clays are conditioned for the removal of colored titaniferous impurities by (A) first mixing the kaolin clay with a collector to condition the impurities, in the absence of a dispersant, but in the presence of sufficient water to yield a mixture having a solids content of at least 65 percent by weight and (B) then deflocculating the kaolin clay mixture at a pH of at least 4.0 with a dispersant in amounts sufficient to yield a kaolin clay slurry which is suitable for subsequent processing to remove colored titaniferous impurities. | ||||||
| 105 | Natural calcium carbonate ores | US602044 | 1990-10-22 | US5084254A | 1992-01-28 | Christopher R. L. Golley |
| There is disclosed a process for purifying a calcium carbonate-containing mineral which process comprises the following steps:a) mixing the calcium carbonate-containing mineral with water and a dispersing agent to form a suspension containing from 60% to 80% by weight of the dry mineral;b) comminuting the suspension of calcium carbonate-containing mineral prepared in step a) to give a product containing not more than 5% by weight of particles which are retained on a sieve having a nominal aperture of 53 microns and not more than 50% by weight of particles which are smaller than 2 microns e.s.d.;c) subjecting the suspension containing from 60% to 80% by weight of the dry comminuted mineral prepared in step b) to froth flotation using a collector for discoloring impurities which colletor comprises a cation containing at least one long chain alkyl group having from 10 to 24 carbon atoms, to yield an underflow product containing the calcium carbonate-containing mineral from which substantially all discoloring impurities have been removed; andd) further comminuting the underflow product of step c) to give a material of which at least 40% by weight of the particles have an equivalent spherical diameter smaller than 2 microns. | ||||||
| 106 | Method for removing inorganic sulfides from non-sulfide minerals | US542349 | 1983-10-17 | US4552652A | 1985-11-12 | Yosry A. Attia; Douglas W. Fuerstenau |
| A method for removing inorganic sulfides from finely ground, non-sulfide minerals is provided. A polymeric agent having a molecular weight of from about 1,000 to about 300,000 and with a plurality of xanthate groups per molecule is admixed into an aqueous suspension including inorganic sulfides and non-sulfide minerals. The polymeric agent adsorbs onto the inorganic sulfides and maintains them as a dispersion while the remaining minerals are selectively separated, as by flocculation. | ||||||
| 107 | Method of treating clay to improve its whiteness | US411588 | 1982-08-25 | US4492628A | 1985-01-08 | Raymond H. Young; Horton H. Morris; Robert L. Brooks |
| A method of treating a clay to remove therefrom titanium mineral impurities comprising the steps of mixing an aqueous slurry of said clay having a high solids content with an activator and a collector for the titanium mineral impurities; conditioning the aqueous clay slurry at said high solids content for a time sufficient to dissipate therein at least 25 horsepower hours of energy per ton of solids; adding to the conditioned aqueous clay slurry a polyacrylate salt deflocculant; subjecting the conditioned aqueous clay slurry undiluted containing the polyacrylate salt deflocculant to a froth flotation process and removing the titanium impurities with the froth; and recovering clay having a reduced titanium minerals impurities content. | ||||||
| 108 | Flotation reagents | US406156 | 1982-08-09 | US4439314A | 1984-03-27 | Robert M. Parlman; Clarence R. Bresson |
| A blend of certain xanthates with mercaptan/glycol combinations produce collector compositions which yield improved results in ore flotation. | ||||||
| 109 | Ambient froth flotation process for the recovery of bitumen from tar sand | US308491 | 1981-10-05 | US4425227A | 1984-01-10 | Scott L. Smith |
| A method for upgrading the bitumen content of tar sands, wherein a raw tar sand slurry admixture of tar sands, water, collectors, and dispersing/wetting agents is milled; conditioned and then separated by a series of froth flotations at ambient temperatures from about 2.degree. C. to about 25.degree. C. to recover a concentrated bitumen tar sand product which may be processed by conventional means to recover oil from the bitumen. Enhanced recovery of bitumen may be accomplished by moderate heating in one or more of the flotation zones to about 50.degree. C. The method permits recovery and recycle of various components used in processing of the tar sand. | ||||||
| 110 | Upgrading of bauxites, bauxitic clays, and aluminum mineral bearing clays | US201279 | 1980-10-27 | US4303204A | 1981-12-01 | David Weston |
| A process for the upgrading of aluminum mineral bearing raw materials by using at least three beneficiation treatment stages consisting of dispersion of a pulp of the material in specific pH ranges, screening in specific mesh sizes, and using at least one stage of high intensity magnetic separation. | ||||||
| 111 | Concentration of hydrated aluminum oxide minerals by flotation | US838445 | 1977-10-04 | US4193791A | 1980-03-18 | David Weston |
| A process for the concentration of hydrated aluminum oxide minerals from raw materials by flotation alone or in combination with magnetic separation using a series of conditioning steps prior to flotation involving dispersion, precipitation and flocculation. | ||||||
| 112 | Concentration of hydrated aluminum oxide minerals by flotation | US736466 | 1976-10-28 | US4113466A | 1978-09-12 | David Weston |
| A process for the concentration of hydrated aluminum oxide minerals from raw materials by flotation alone or in combination with magnetic separation using a series of conditioning steps prior to flotation involving dispersion, precipitation and flocculation. | ||||||
| 113 | Method for recovering scheelite from tungsten ores by flotation | US659999 | 1976-02-23 | US4054442A | 1977-10-18 | Ronald Vedova; Norman LeRoy Grauerholz |
| A flotation process for recovering scheelite from low-grade tungsten ores containing calcium-bearing minerals other than scheelite. Calcium oxide (lime) is added to an ore pulp together with a carbonate alkalizing agent, dispersant and anionic collector. The pulp is subsequently subjected to flotation and the scheelite recovered. | ||||||
| 114 | Simultaneous flotation of silica phosphates and carbonate minerals | US3430762D | 1967-01-19 | US3430762A | 1969-03-04 | WESTON DAVID |
| 115 | Phosphate matrix beneficiation process | US31615463 | 1963-10-14 | US3302785A | 1967-02-07 | GREENE ERNEST W |
| 116 | Froth flotation method | US7609460 | 1960-12-16 | US3107214A | 1963-10-15 | DUKE JAMES B |
| 117 | Method of concentrating mineral values | US52037555 | 1955-07-06 | US2868618A | 1959-01-13 | OBERG FRED N; LE BARON IRA M |
| 118 | Concentration of potash ores containing sylvite | US26631452 | 1952-01-14 | US2846068A | 1958-08-05 | AUBREY SMITH WILLIAM; MATTSON VERNON L; GENE MEYER; BAXTER ROBERT A |
| 119 | Dispersible fatty amines | US44435554 | 1954-07-19 | US2816870A | 1957-12-17 | LENTZ THOMAS H; OPIE JOSEPH W; TERRY DAVID E |
| 120 | Depression of carbonaceous material in flotation | US18807538 | 1938-02-01 | US2145206A | 1939-01-24 | BOOTH ROBERT B |
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