| 序号 | 专利名 | 申请号 | 申请日 | 公开（公告）号 | 公开（公告）日 | 发明人 |
|---|---|---|---|---|---|---|
| 81 | 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. | ||||||
| 82 | Flotation process for purification of waste water | US180977 | 1980-08-25 | US4311595A | 1982-01-19 | Elias Julke |
| In a flotation method for purification of industrial or municipal waste water, in which the waste water comes in contact with electrodes having an electrical potential capable of electrolytically decomposing a portion of the waste water, thereby creating an ascending stream of gas bubbles, the waste water is mixed before or during the electrolytic decomposition with wettable particles of polymer material which are practically insoluble in water and have an absolute density of 1.3 g/cm.sup.3 at the most. Polymeric materials, especially polyalkane fibrids, are suitable for use as particles. This process makes it possible to purify oil-containing waste water by electroflotation without forming an oil film on the electrodes. | ||||||
| 83 | Flotation of inorganic materials from glass using hydrocarbon sulfonates | US127192 | 1980-03-04 | US4269700A | 1981-05-26 | William R. White |
| Particulate glass values contained in the final inorganic fraction from comminuted municipal solid wastes and having the particle size between 10 mesh and 325 mesh are recovered by froth flotation depressing the glass and causing flotation of the gangue using as the beneficiation reagent a water compatible sulfonated hydrocarbon. Glass depression occurs by use of a mineral acid or fluoride ion and maintaining pH of the media less than about 4. | ||||||
| 84 | Method of beneficiating phosphate ores | US885156 | 1978-03-10 | US4189103A | 1980-02-19 | James E. Lawver; Robert E. Snow; Walter O. McClintock |
| A method is disclosed for beneficiating a phosphate ore matrix containing apatite, siliceous gangue, and an alkaline earth metal carbonate mineral impuritywhich includes the steps of washing and sizing the ore, subjecting it to a gravity separation, a conventional "double float" flotation, and a phosphate-carbonate flotation separation to provide a phosphate ore concentrate having a high BPL content and a relatively low concentration of alkaline earth metal carbonate mineral impurity. | ||||||
| 85 | Beneficiation of phosphate rock | US3622087D | 1969-10-24 | US3622087A | 1971-11-23 | OLTMANN HANS H |
| A treatment system for the beneficiation of phosphate rock, wherein a first treatment section effects the beneficiation proper producing the coarse and the fine concentrates of phosphate rock separated from the impurities, while a second section handles the disposal of the separated waste material in the form of large volumes of the primary and secondary slimes. The invention minimizes or eliminates the need for large and objectionable lagoon areas to receive the slimes, in that it solves the disposal problem by the provision of a stagewise thickening operation for the slimes, conducted to produce a highdensity mixed sludge that is readily disposable, while large volumes of process water are recovered instead of being lost by evaporation from the lagoons.
|
||||||
| 86 | Apparatus for froth flotation | US39779964 | 1964-09-21 | US3351199A | 1967-11-07 | ANDREJS ZVEJNIEKS |
| 87 | Integral ore milling assembly and method of concentration | US32242263 | 1963-11-08 | US3314616A | 1967-04-18 | DAMAN ARTHUR C |
| 1,046,081. Concentrating ores; ball mills. DENVER EQUIPMENT CO. Jan. 16, 1964 [Nov. 8, 1963], No. 2031/64. Headings B2A and B2H. General description. To a mineral concentrating apparatus adapted to be transported as an integral unit, dry ore in a finely divided state is fed via a conveyer 7, a bin 8 and a conveyer 9 to a jig 10 in which the ore is jigged in a liquid carrier to separate a heavy mineral concentrate and to form a pulp with the remainder of the ore. The pulp overflow is directed via a drum feeder 66 to a rotatable ball mill 11 in which the ore constituents of the pulp are reduced in size and froth flotation reagents are added to the pulp to condition it for flotation. Oversize material is removed by a screen 17 mounted on the discharge end of the mill and is returned to a crusher for further reduction. The conditioned pulp containing the undersize material falls into a sump 18, to which additional reagent can be added, and is fed by a pump 19 to a cone separator 20 where it is separated into a fine fraction which is directed via a vortex overflow pipe 22 to a first froth flotation unit comprising cells 24 to 27, Fig. 2 (not shown) and into a coarse fraction which is directed via an apex underflow pipe 23 to a second froth flotation unit comprising cells 28 to 31. In the cells 24 to 31, the valuable minerals are elevated to the surface in a froth which is skimmed off into a launder 60 for final discharge of the mineral as a concentrate. Tailings from the first bank of cells 24-27 may be delivered to a concentrating table 56<SP>1</SP> for final removal of valuable minerals before the tailings are discharged to waste. Alternatively, the tailings are fed via a pipe 23a to the second bank of cells 28-31. Below the aerating impellers 57 of the cells 28-31, Fig. 5 (not shown), the cells open into cone separators 32-35 where the non-floated solids from the cells are subjected to a sorting action, the lighter solids being returned to the cells and the heavier ones collecting in the bottom of the cone separators. The tailings from the last cell 31 are directed via a pipe 51 to the concentrating table 56<SP>1</SP> or are discharged directly to waste. The cone separators have discharge tubing portions 36-39 secured thereto and connected to pipes 40-43 leading to the jig 10. Eccentrics 44 to 47 mounted on a common shaft 48 connected by a belt and pulley to a variable speed drive 50 co-operate with the tubing portions 36-39, Fig. 4 (not shown), to regulate the flow of heavy solids slowly discharging from the cone separators 32-35, the slurry being returned to the jig 10 for recirculation. Ball Mill. The ball mill, Figs. 6 to 9 (not shown), has a cylindrical shell position 61 secured by a trunnion 62 at the feed end and supported near its discharge end by spaced hard rubber rollers 63, 64 mounted on bases 63a, 64a adjustable towards, or away from, each other by means of a bolt and nut 65, 65a. The drum is driven via belts 75, 76 by an assembly comprising a motor 71, Fig. 1 a variable drive 71a Fig. 8 (not shown) and a gear reducer 72 having double output shaft extensions. The drive assembly is mounted on a hinged base 15 to adjust the tension of the belts. The shell portion 61 is lined internally with rubber 67 and is formed with longitudinally extending projections 61c, 61d which serve to elevate the pulp and the grinding balls to aid in the pulp attrition. A grate 69 at the discharge end of the shell has a relatively large central opening 94 for introducing the grinding balls and relatively smaller openings 92 for the discharge of the treated pulp. | ||||||
| 88 | Method of producing ultra-clean coal | US38753853 | 1953-10-21 | US2842319A | 1958-07-08 | WILHELM REERINK; WALTER MUSCHENBORN; ERICH NOTZOLD |
| 89 | Flotation of slimes from sylvinite ore with hydroxyethyl cellulose | US15444750 | 1950-04-06 | US2569672A | 1951-10-02 | JACKSON RICHARD I |
| 90 | Froth flotation of iron impurities from feldspar | US63069545 | 1945-11-24 | US2483192A | 1949-09-27 | WILLIAM GIESEKE ELMER |
| 91 | Froth flotation of oxidized iron ores with sulfonated oils | US52186844 | 1944-02-10 | US2414714A | 1947-01-21 | BOOTH ROBERT B; HERKENHOFF EARL C |
| 92 | Recovery of ilmenite by a two-stage flotation process | US44450042 | 1942-05-26 | US2387856A | 1945-10-30 | ALDERSON PICKENS ROY |
| 93 | Treatment of magnesite ores | US43061942 | 1942-02-12 | US2363029A | 1944-11-21 | WEINIG ARTHUR J |
| 94 | Size band flotation of silica | US45443242 | 1942-08-11 | US2357419A | 1944-09-05 | MEAD HARRY L; MAUST ERNEST J |
| 95 | Flotation process | US32501140 | 1940-03-20 | US2295459A | 1942-09-08 | EDWARD ERICKSON STEPHEN |
| 96 | Froth flotation of siliceous material | US32277140 | 1940-03-07 | US2293470A | 1942-08-18 | MEAD HARRY L; MAUST ERNEST J |
| 97 | Ore conditioning device | US65539033 | 1933-02-06 | US2000418A | 1935-05-07 | RUTH JR JOSEPH P |
| 98 | Device for conditioning ores | US33905129 | 1929-02-11 | US1755273A | 1930-04-22 | RUTH JR JOSEPH P |
| 99 | Apparatus for ore separation | US32431019 | 1919-09-18 | US1497804A | 1924-06-17 | CHARLES SPEARMAN |
| 100 | Method for concentrating ores and the like | US28101719 | 1919-03-06 | US1491110A | 1924-04-22 | CHARLES SPEARMAN |
QQ群二维码
意见反馈
意见反馈