| 序号 | 专利名 | 申请号 | 申请日 | 公开（公告）号 | 公开（公告）日 | 发明人 |
|---|---|---|---|---|---|---|
| 121 | Process for separation of at least one metal sulfide from a mixed sulfide ore or concentrate | US15115142 | 2015-01-30 | US09885095B2 | 2018-02-06 | Marcus Tomlinson; Teodoro Martinez; Simon Hille |
| A process is provided for separation of at least one metal sulfide from a mixed sulfide concentrate. The process includes: subjecting the mixed sulfide concentrate to flotation in which at least one sulfide including antimony, arsenic and a first metal is floated and at least one sulfide including a second metal is depressed. The flotation yields a first metal concentrate having the at least one sulfide including antimony, arsenic and the first metal and a second metal concentrate having the at least one sulfide including the second metal. The first metal concentrate is leached to yield a further concentrate and a leach solution. The further concentrate includes the first metal and the leach solution includes soluble antimony and soluble arsenic. The process further includes oxidizing the leach solution to yield an antimony precipitate and an arsenic solution, and forming a stable arsenic compound from the arsenic solution. | ||||||
| 122 | APPARATUS FOR SIMULTANEOUS GRINDING AND FROTH FLOTATION | US15526059 | 2015-11-24 | US20170312759A1 | 2017-11-02 | Michael STEINWENDER; Jörg SÖTEMANN |
| The present invention relates to apparatus for simultaneous grinding and froth flotation of at least one crude mineral and/or pigment, a process carried out in the apparatus for manufacturing at least one ground mineral and/or pigment, use of the ground mineral and/or pigment bearing phase obtainable by the process in paper applications as well as in paper, plastics, paints, coatings, adhesives, sealants, food, feed, pharma, concrete, cement, cosmetic, water treatment and/or agriculture applications, preferably in a wet end process of paper machine, in cigarette paper, board, and/or coating applications, or as support for rotogravure and/or offset and/or ink jet printing and/or continuous ink jet printing and/or flexography and/or electrophotography and/or decoration surfaces and the ground mineral and/or pigment bearing phase or ground mineral and/or pigment obtainable by the process. | ||||||
| 123 | Method for Improving Rheological Properties of Mineral Slurry | US14971164 | 2015-12-16 | US20160151791A1 | 2016-06-02 | Lucas R. Moore; Mika Martikainen |
| A method for improving the rheological properties of mineral slurry comprising adding a copolymeric dispersing agent to the slurry to disperse silicate minerals. Also disclosed is a method for flotating mineral slurry. | ||||||
| 124 | PROCESSES FOR THE SEPARATION OF ORES | US14056498 | 2013-10-17 | US20140110621A1 | 2014-04-24 | Michael S. Kerns; Pablo G. Dopico; John B. Hines |
| Methods for purifying one or more value materials are provided. The method can include contacting an aqueous mixture comprising a value material and a contaminant with a dispersant and a depressant to produce a treated mixture. A weight ratio of the dispersant to the depressant can be from about 1:1 to about 30:1. The method can also include recovering a purified product comprising the value material from the treated mixture. The purified product can have a reduced concentration of the contaminant relative to the aqueous slurry. | ||||||
| 125 | Method for Improving Rheological Properties of Mineral Slurry | US13992251 | 2011-12-14 | US20130338295A1 | 2013-12-19 | Lucas R. Moore; Mika Martikainen |
| A method for improving the rheological properties of mineral slurry comprising adding a copolymeric dispersing agent to the slurry to disperse silicate minerals. Also disclosed is a method for flotating mineral slurry. | ||||||
| 126 | Method of reducing phosphate ore losses in a desliming process | US10026223 | 2001-12-19 | US06805242B2 | 2004-10-19 | Francisco J. Sotillo |
| The specification describes one or more embodiments of the present invention, which relates to a method of reducing phosphate ore losses in a desliming process. A phosphate ore preparation slurry is directed to a desliming unit; surfactants and/or an organic polymers are added to the slurry and mixed into the slurry to reduce the viscosity of the slurry and to settle out the fine phosphate ore particles for recovery. These particles are collected and directed to a beneficiation process for recovering the phosphate ore product. It is emphasized that this abstract is provided to comply with the rules requiring an abstract that will allow a reader to quickly ascertain the subject matter of the technical disclosure. It is submitted with the understanding that it will not be used to interpret or limit the scope of meaning of the claims. 37 CFR 1.72(b). | ||||||
| 127 | Method of reducing phosphate ore losses in a desliming process | US10026223 | 2001-12-19 | US20030121833A1 | 2003-07-03 | Francisco J. Sotillo |
| The specification describes one or more embodiments of the present invention, which relates to a method of reducing phosphate ore losses in a desliming process. A phosphate ore preparation slurry is directed to a desliming unit; surfactants and/or an organic polymers are added to the slurry and mixed into the slurry to reduce the viscosity of the slurry and to settle out the fine phosphate ore particles for recovery. These particles are collected and directed to a beneficiation process for recovering the phosphate ore product. It is emphasized that this abstract is provided to comply with the rules requiring an abstract that will allow a reader to quickly ascertain the subject matter of the technical disclosure. It is submitted with the understanding that it will not be used to interpret or limit the scope of meaning of the claims. 37 CFR 1.72(b). | ||||||
| 128 | METHOD OF PRODUCING POLYOXYALKYLENE GLYCEROL ETHER FATTY ACID ESTERS | US08929011 | 1997-09-08 | US20020121346A1 | 2002-09-05 | SHOICHI NISHIZAKI; TORU KITAGAWA |
| The invention relates to a method of producing fatty acid esters of polyoxyalkylene glycerol ethers. The method comprises reacting an alkylene oxide or oxides directly with a mixture of a natural fat or oil, water and a catalyst. The method of the invention can avoid the complicatedness encountered in the prior art production processes and give polyoxyalkylene glycerol ether fatty acid esters excellent in surfactant performance. | ||||||
| 129 | Flotation method for removing colored impurities from kaolin clay | US09727322 | 2000-11-30 | US06378703B1 | 2002-04-30 | Sharad Mathur; Ronnie E. Brooks; Ernest M. Finch |
| An improved method for purifying titania contaminated kaolin clay by froth flotation which features the use an hydroxamate flotation collector at a neutral or mildly alkaline pH wherein a slurry of the impure clay is conditioned for the flotation step in a baffled conditioning apparatus provided with mean for imparting sufficient mechanical energy to heat a dispersed slurry of the impure clay before flotation. | ||||||
| 130 | Process for conditioning kaolin clays prior to removing impurities | US509506 | 1995-07-28 | US5685899A | 1997-11-11 | 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. | ||||||
| 131 | Process for the recovery of micas by flotation and micas thus obtained | US190552 | 1994-02-02 | US5439116A | 1995-08-08 | Andre Van Lierde; Jean-Philippe Beuvelet |
| The invention relates to a process for the recovery of micas by flotation starting with slurried ore from which the fines have been optionally removed, comprising a stage of bringing the said slurry into contact with an appropriate cationic collector, followed by an actual flotation stage and recovery of the supernatant formed for subsequent treatment and optional rewashing, characterized in that it is carried out at a pH higher than 6 and in that the stage of bringing the said slurry into contact with the cationic collector is preceded by a stage of bringing the said slurry into contact with an activating agent chosen from soluble metal salts.The invention also relates to the micas obtained by the process. | ||||||
| 132 | Purification of kaolin clay by froth flotation using hydroxamate collectors | US676477 | 1984-11-29 | US4629556A | 1986-12-16 | Roe-Hoan Yoon; Thomas M. Hilderbrand |
| An improved flotation process for removal of colored titaniferous impurities from kaolin clay uses as collector a hydroxamate compound, or a mixture of compounds, having the formula ##STR1## in which R is an alkyl, aryl, or alkylaryl group having 4-28, and preferably 6-24 carbon atoms, and M represents an alkali metal, an alkaline earth metal or hydrogen. The process does not require the use of activators to make the collector adsorb selectively on the colored impurities. | ||||||
| 133 | Flotation reagents | US689675 | 1985-01-08 | US4579651A | 1986-04-01 | Clarence R. Bresson; Robert M. Parlman |
| A composition and process are provided for the recovery of the values of zinc, molybdenum, copper, lead, iron (pyrite), and iron-containing small amounts of gold or uranium, or both, from ores comprising these mineral sulfides. The aqueous composition is the impure form of an alkali metal alkyl trithiocarbonate compound. The process comprises employing said aqueous composition as a collection agent for the above minerals in an ore recovery process.A process for the separation of zinc values from lead values from a ore comprising both is provided by employing an alkali metal alkyl trithiocarbonate compound as a collection agent for zinc.In addition, both a composition and process are provided for the recovery of the values of iron, copper, and lead from ores comprising these values. The composition consists essentially of a dispersant and an impure form of an alkali metal alkyl trithiocarbonate compound. The process comprises employing this composition as a collection agent for the above minerals in an ore recovery process. | ||||||
| 134 | Process for separating copper and iron minerals from molybdenite | US211470 | 1980-11-28 | US4317543A | 1982-03-02 | Juan P. Olivares |
| A process for separating molybdenite from copper and iron ores is disclosed. A copper concentrate containing molybdenite is treated during an attritioning stage with a surfactant which is an alkyl ester of sodium and/or calcium succinic or succinamic acids and a molybdenite concentrate is recovered by flotation. The molybdenite concentrate contains at least 90% of the original molybdenite and less than 5% of the undesirable ores. | ||||||
| 135 | Flotation of non-sulfide zinc materials | US54742 | 1979-07-05 | US4253614A | 1981-03-03 | Phillip E. McGarry; Zoran Pacic |
| A method is provided for recovering zinc from non-sulfide containing zinc ore comprising the steps of grinding the ore to a pre-determined level; selectively flocculating the ground ore using a dispersing agent and a flocculating agent and froth flotating the flocs using an ester of a mercaptocarboxylic acid as a collector in the presence of a soluble sulfide. | ||||||
| 136 | Selective flocculation of minerals from a mixture or an ore | US683349 | 1976-05-05 | US4090955A | 1978-05-23 | Robin William Dexter; Douglas Rusling |
| Modification of a polyacrylamide to provide a content of N-hydroxymethyl groups thereon results in a selective flocculant which is effective in separating mineral values from an ore or mixture. | ||||||
| 137 | Talc beneficiation | US3459299D | 1967-09-01 | US3459299A | 1969-08-05 | MERCADE VENANCIO |
| 138 | N-substituted monoamidotriphosphate and processes for their manufacture | US41549964 | 1964-12-02 | US3405168A | 1968-10-08 | XAVIER KOWALSKI; SHAVER KENNETH J |
| 139 | Method for beneficiating clay by flotation | US41550364 | 1964-12-02 | US3337048A | 1967-08-22 | VENANCIO MERCADE |
| 140 | Flotation of mica | US39048564 | 1964-08-18 | US3329265A | 1967-07-04 | BROWNING JAMES S; ADAIR RALPH B |
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