| 序号 | 专利名 | 申请号 | 申请日 | 公开（公告）号 | 公开（公告）日 | 发明人 |
|---|---|---|---|---|---|---|
| 61 | Procédé de traitement de l'argile pour en éliminer les impuretés minérales à base de titane | EP83401620.6 | 1983-08-05 | EP0104100A2 | 1984-03-28 | Young, Raymond H.; Morris, Horton H.; Brooks, Robert L. |
Procédé de traitement de l'argile pour en éliminer les impuretés minérales à base de titane. Selon l'invention, on :
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| 62 | PROCESS FOR SEPARATION OF AT LEAST ONE METAL SULFIDE FROM A MIXED SULFIDE ORE OR CONCENTRATE | US15850849 | 2017-12-21 | US20180112288A1 | 2018-04-26 | Marcus Tomlinson; Teodoro Martinez; Simon Hille |
| A stabilization process for an arsenic solution comprising thiosulfates, the process comprising: acidifying the arsenic solution to decompose the thiosulfates, to yield an acidified solution; oxidizing the acidified solution to oxidize residual As3+ to As5+ and reduced sulfur species to sulfates, to yield a slurry comprising elemental sulfur; separating elemental sulfur from the slurry to yield a liquid; oxidizing the liquid to oxidize residual reduced sulfur species, to yield an oxidized solution; and forming a stable arsenic compound from the oxidized solution. | ||||||
| 63 | PROCESS FOR SEPARATION OF AT LEAST ONE METAL SULFIDE FROM A MIXED SULFIDE ORE OR CONCENTRATE | US15115142 | 2015-01-30 | US20160340756A1 | 2016-11-24 | 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 may comprise: subjecting the mixed sulfide concentrate to flotation in which at least one sulfide comprising antimony, arsenic and a first metal is floated and at least one sulfide comprising a second metal is depressed. The flotation yields a first metal concentrate having the at least one sulfide comprising antimony, arsenic and the first metal and a second metal concentrate having the at least one sulfide comprising the second metal. The first metal concentrate is leached to yield a further concentrate and a leach solution. The further concentrate comprises the first metal and the leach solution comprises soluble antimony and soluble arsenic. The process may further comprise oxidizing the leach solution to yield an antimony precipitate and an arsenic solution, and forming a stable arsenic compound from the arsenic solution. | ||||||
| 64 | Composition For Dressing Phosphate Ore | US14427063 | 2013-08-20 | US20150238976A1 | 2015-08-27 | Wagner Claudio Da Silva; Klaus Ulrich Pedain; Nilson Mar Bartalini; Zaira Guimaraes Duarte; Monica Speck Cassola; Jorge Antonio Arias Medina; Antonio Pedro Oliveira Filho |
| The invention relates to a flotation agent for phosphate ore, comprising at least one fatty acid and at least one sarcosinate of the formula (I) wherein R is a C7 to C21 alkyl or alkenyl group, which sarcosinate may be present in the form of a cation derived therefrom caused by protonation of the nitrogen atom, wherein the amount of fatty acid is from 70 to 99 wt.-%, and wherein the amount of the sarcosinate of the formula (I) is from 1 to 30 wt.-%. | ||||||
| 65 | METHOD FOR SEPARATING ARSENIC MINERAL FROM COPPER-BEARING MATERIAL WITH HIGH ARSENIC GRADE | US13577353 | 2011-02-03 | US20130004389A1 | 2013-01-03 | 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. | ||||||
| 66 | Agent for dressing phosphate ore | US10276211 | 2002-11-14 | US06712217B2 | 2004-03-30 | Dr. Gernot Kremer; Klaus Ulrich Pedain; Juan Balassa; Pablo Lopez |
| 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. | ||||||
| 67 | Magnetic separation of ores using sulfonated polymers | US09969214 | 2001-10-02 | US20030066787A1 | 2003-04-10 | Libardo A. Perez; Donald C. Roe; David M. Polizzotti |
| A method of enhancing the magnetic separation of ores is disclosed in which a sulfonated polymeric dispersant is added to an ore slurry just prior to or during the magnetic separation operation. The sulfonated polymeric additive inhibits heterogeneous flocculation during the magnetic separation operation. | ||||||
| 68 | Mineral ore flotation aid | US09847125 | 2001-05-02 | US20020185415A1 | 2002-12-12 | 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. | ||||||
| 69 | Flotation reagents | US489846 | 1983-05-06 | US4556500A | 1985-12-03 | 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 an 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. | ||||||
| 70 | Selective flocculation of coal | US679728 | 1984-12-10 | US4555329A | 1985-11-26 | Robert C. Sykes; Lawrence J. Connelly; William J. Roe |
| A method for separating inorganic gangues from coal particulates dispersed in a coal refuse slurry comprises the selective flocculation of the coal refuse slurry by initially adding an anionic dispersant followed subsequently by adding an anionic flocculant, allowing the flocculating coal slurry obtained to settle and collecting a concentrated settled coal slurry having a lowered ash value. The dispersed inorganic gangues may be recovered by the addition of a cationic flocculant/coagulant with subsequent recycle of the aqueous phase. | ||||||
| 71 | Method of conditioning clay for flotation using in situ ferrous activator | US411250 | 1982-08-25 | US4501658A | 1985-02-26 | Raymond H. Young |
| Method of treating a clay to remove therefrom titanium mineral impurities comprising the steps of mixing an aqueous clay with a collector for the titanium mineral impurities, a reducing agent, and, if needed, an activator preferably comprising a water-soluble ferrous salt; conditioning the resulting mixture of aqueous clay slurry, collector, reducing agent and activator to dissipate therein at least 25 horsepower hours of energy per ton of solids; subjecting the conditioned mixture to froth flotation and removing titanium impurities with the froth; and recovering clay having a reduced titanium minerals impurities content. The method includes the case where the activator is a ferrous salt formed in situ from iron impurities in the clay formed by adding said reducing agent in place of some or all of added activator. | ||||||
| 72 | Flocculating reagents | US350372 | 1982-02-19 | US4415458A | 1983-11-15 | Pearl M. Klein |
| Cost effective and environmentally acceptable reagents and a method for flocculating fine particles from liquid suspensions are provided. A method for selectively flocculating fine particles from a slurry is also provided. The reagents comprise orange peel extract, corn husk extract and mixtures thereof. The method generally comprises the step of adding a reagent to a suspension of fine particles, mixing the combination of reagent and suspension and allowing the flocculated fine particles to settle out of suspension. | ||||||
| 73 | Flotation and sintering of synthetic manganese carbonate | US91077 | 1979-11-05 | US4274866A | 1981-06-23 | Ralph W. M. Lai; Edwin L. Owen |
| A process in which manganese is recovered from manganese nodules after the nodules have been treated to recover base metals such as copper, nickel, cobalt, and molybdenum. The process includes the steps of reacting the manganese in the nodules to yield a carbonate and subjecting the manganese carbonate to flotation. The manganese carbonate froth is collected from the top of a flotation cell, is dried to produce a manganese concentrate, and is sintered to produce a synthetic manganese oxide. Sintering of such concentrates at 1000.degree. C. yields a product containing greater than 50% manganese.The effect of reagent dosage, pH control, and temperature control on the yield of the synthetic manganese oxide is also disclosed. | ||||||
| 74 | Upgrading of bauxites, bauxitic clays, and aluminum mineral bearing clays | US14279 | 1979-02-23 | US4272029A | 1981-06-09 | 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. | ||||||
| 75 | Composition comprising a pulverized purified substance, water and a dispersing agent, and a method for preparing the composition | US908497 | 1978-05-23 | US4217109A | 1980-08-12 | Olle L. Siwersson; Arne E. Wall; Jan A. T. Loodberg |
| A composition consisting of carbon powder, water and a dispersing agent. The particle size of the carbon powder is less than 100 .mu.m, preferably less than 40 .mu.m. The composition is obtained by preparing a mixture of about 1-20% by weight, preferably about 10% by weight, of carbonaceous powder, water and 0.02-4% by weight of dispersing agent. The dispersing agent is selected preferably from polyelectrolytes, such as alkali metal and ammonium salts of polycarboxylic acids, and polyphosphates. These substances possess the property of charging the powder particles of carbon and the impurity particles in a different degree. This different charging is utilized to separate impurity particles from carbon particles, whereupon the purified composition is suitably dehydrated to attain an increased carbon powder concentration of, for instance, 50-80% by weight. | ||||||
| 76 | Flotation with xanthate | US30369172 | 1972-11-06 | US3901450A | 1975-08-26 | WESTON DAVID |
| A process for the flotation of copper minerals employing xanthates, wherein the copper minerals are strongly activated in at least one stage at a pH of 10 to 12 and then conditioned with a dispersing agent or a flocculating agent prior to flotation, the process showing marked improvement in grade and recovery in the case of refractory ores and ore containing talc and clay, and being effective to concentrate copper sulphides, copper silicates and copper oxide in the same circuit.
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| 77 | Concentration of spodumene using flotation | US3710934D | 1970-06-29 | US3710934A | 1973-01-16 | WYMAN R |
| A method of concentrating and recovering spodumene from an aqueous pulp or slurry by conditioning the pulp with an aliphatic primary beta-amine having from seven to 15 carbon atoms (preferably as a soluble acid salt), subjecting to flotation at a pH of about 8-10 to float off the impurities, and recovering the spodumene concentrate as residue.
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| 78 | Monoamidotriphosphate detergent compositions | US3457177D | 1967-12-05 | US3457177A | 1969-07-22 | KOWALSKI XAVIER; SHAVER KENNETH J |
| 79 | Concentration of iron ores by froth flotation | US29084352 | 1952-05-29 | US2701057A | 1955-02-01 | CLEMMONS BALLARD H |
| 80 | Flotation of culm | US9807236 | 1936-08-26 | US2136074A | 1938-11-08 | CRAWFORD BRUCE D; GRINE HARRY A |
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