-
- دوشنبه تا شنبه: 10:00 - 16:00 / یکشنبه تعطیل است
Therefore, a good separation range of pH 3–11 was observed, in which molybdenite is effectively depressed with 20 ppm of HA, keeping the chalcopyrite flotation unchanged. This reduction in molybdenite floatability suggests that chemical interaction is absent between HA and the basal planes of molybdenite, unlike between HA and …
به خواندن ادامه دهید
This patent application claims benefit of U.S. Provisional Patent Application Ser. No. 62/863,060 filed Jun. 18, 2019, which is entirely incorporated herein by reference. ... Each of these streams can be treated to a gas flotation separation process to separate the organic solvent from the aqueous phase. A gas is added to each stream, and the ...
به خواندن ادامه دهید
Different from froth flotation, gravity separation takes advantage of the density differences between unburned carbon particles (~1.8 g/cm 3) and ash particles (~2.5 g/cm 3) [22], [23], which led to the distinctions of settling velocity in fluid medium (for example water or air) and promoted the separation of unburned carbon particles and ash ...
به خواندن ادامه دهید
Saitoh et al., 1976, Izumi and Saitoh, 1976a, Izumi and Saitoh, 1976b disclosed patents for flotation separation of plastics. Flotation separation of plastics utilizing …
به خواندن ادامه دهید
A flotation separation apparatus for separating particles in suspensions, feeds slurry containing the particles through an inlet (10) into a contactor (16) where gas is fed through an inlet (12) to mix with the slurry, for example in a downwardly plunging jet (14), to form a gas-liquid bubbly two-phase mixture under pressure from an outlet restriction in a …
به خواندن ادامه دهید
According to the foreign patent, the flotation index is still good when gum is used with wetting agent in the flotation of nickel sulfide ore containing 50 % talcum. ... In addition, starch depressants are also applied in the flotation separation of Cu–Mo ore [7, 8]. The modified products of starch can selectively depress quartz, silicate ...
به خواندن ادامه دهید
Froth flotation is a physicochemical separation process in which a mixture of fine mineral particles is mixed with water in a large tank (cell), and a swarm of small air …
به خواندن ادامه دهید
Abstract. A method and apparatus are disclosed for the microbubble flotation separation of very fine particles, especially coal, so as to produce a high purity and large …
به خواندن ادامه دهید
Patent Number(s): US 5167798; A Application Number: PPN: US 7-574794 Assignee: ... An apparatus is disclosed for the microbubble flotation separation of very fine and coarse particles, especially coal, and minerals so as to produce high purity and high recovery efficiency. This is accomplished through the use of a flotation column, …
به خواندن ادامه دهید
Priority to AU2003276310A priority patent/AU2003276310A1/en Priority to ARP030104161A priority patent/AR042029A1/en ... thus eliminating inefficiency in the flotation machine. The separation element is arranged to cover at least part of the slurry area. The separation element is arranged to circle at least part of the gas ...
به خواندن ادامه دهید
Abstract. The invention discloses the method for purification of a kind of wollastonite, relate to mineral floating separation technology field.Impurity iron in wollastonite mine is removed by the present invention by magnetic separation, then by rosin amine, quartz is flotated, add collecting agent dodecyl salt acid amide and inhibitor tannic ...
به خواندن ادامه دهید
In froth flotation separation, the first use of polysaccharides dates back to 1928 and has continued up to now [34].Although several polysaccharides have been recently synthesized and extensively used for pyrite depression in different mineral processing plants, no comprehensive review article has universally explored their …
به خواندن ادامه دهید
@article{osti_5183181, title = {Critical surface tension of wetting and flotation separation of hydrophobic solids}, author = {Kelebek, S and Smith, G W and Finch, J A and Yoeruek, S}, abstractNote = {Wetting characteristics of a number of minerals including layer-type hydrophobic minerals as well as common sulfides were investigated. For the majority of …
به خواندن ادامه دهید
US Patent Application for System and method of gas energy management for particle flotation and separation Patent Application (Application #20040178152 …
به خواندن ادامه دهید
DOE Patents Patent: Apparatus and ... An apparatus is disclosed for the microbubble flotation separation of very fine and coarse particles, especially coal, and minerals so as to produce high purity and high recovery efficiency. This is accomplished through the use of a flotation column, microbubbles, recycling of the flotation pulp, and ...
به خواندن ادامه دهید
The flotation results for monominerals, mixed minerals, and actual mineral samples indicated that guar gum exhibited much higher selective depression for talc than for scheelite. Bench-scale closed-circuit tests showed that a tungsten concentrate with a WO 3 grade of 51.43% and a WO 3 recovery of 76.18% was obtained.
به خواندن ادامه دهید
A method of mineral separation by froth floatation in which pulp is fed into a cylindrical tank of height approximately equal to its diameter. The pulp is mechanically agitated, and air at low pressure is fed into the bottom of the tank, to keep the tank contents in suspension and to float the desired fraction of the pulp. The feature of the invention is that a low flow …
به خواندن ادامه دهید
The separation of the oiled mineral from the unoiled gangue is described thus: "In practice, the concentrate, after thorough agitation of the mass and detachment of the sand, will in this case be preferably removed by means of a constant overflow of water from a washing-out vessel, by … See more
به خواندن ادامه دهید
J.O. Gustafsson and C.J. Lannefors, Polyquaternary Polymer as a Depressant in a Method for Froth Flotation of Potash Ores, US Patent, Appl. 9486815B2, 2014. Google Scholar M.J. Pearse, Historical use and future development of chemicals for solid-liquid separation in the mineral processing industry, Miner.
به خواندن ادامه دهید
Priority to US13/577,279 priority Critical patent/US20130140218A1/en Publication of US20130140218A1 publication Critical patent/US20130140218A1/en Status Abandoned legal-status Critical Current Links. ... Flotation separation using lightweight synthetic beads or bubbles US20150209799A1 (en) * : : Cidra ...
به خواندن ادامه دهید
The mixed cationic and anionic collectors were found to be as effective as the HF reagent system in obtaining high grade feldspar concentrates. Iron-bearing raw marine sand consisting of quartz (88%) and feldspar (10%) was treated by Mathieu and Sirois (1984) using the same combination of anionic-cationic promotors.
به خواندن ادامه دهید
This Patent is brought to you for free and open access by the Center for Applied Energy Research at UKnowledge. It has been accepted for inclusion in Center for Applied Energy …
به خواندن ادامه دهید
The invention discloses a copper-molybdenum separation electric potential flotation process. The copper-molybdenum separation electric potential flotation process comprises the steps of raw ore crushing, ore grinding, mixed flotation and separation flotation. In the separation flotation step, the ph value of pulp is kept at 10-11, and rougher flotation …
به خواندن ادامه دهید
Patent Miller, Jan D [1886 Atkin Ave., Salt Lake City, UT 84106]; Yi, Ye [2875 E. Wander Way, Salt Lake City, UT 84117]; Yu, Qiang ... A method and apparatus are disclosed for the microbubble flotation separation of very fine and coarse particles, especially coal and minerals, so as to produce high purity and high recovery efficiency. ...
به خواندن ادامه دهید
The flotation medium used in this study contains the only chemical agent (frother TP) during the whole separation process, referring to none of the interferential …
به خواندن ادامه دهید
Some of the patents obtained on the separation of plastics aimed mainly at flotation separation of PVC from other plastics 8, 20, 21. More extensive work focusing on the fundamental research on plastics flotation was done by several authors recently. A pilot plant for plastics flotation was recently established in Germany [5]. 4.2.1.
به خواندن ادامه دهید
According to the flotation separation method, the antimony sulfide minerals can be effectively separated from the gold-carrying minerals through flotation, so that the antimony concentrate having the antimony grade of 33.82%-37.28% and the recovery rate of 87.21%-91.62% is obtained, and simultaneously, the gold concentrate having the grade …
به خواندن ادامه دهید
Patent Yoon, Roe-Hoan; Adel, Gregory; Luttrell, Gerald. ... An apparatus is disclosed for the microbubble flotation separation of very fine and coarse particles, especially coal, and minerals so as to produce high purity and high recovery efficiency. This is accomplished through the use of a flotation column, microbubbles, recycling of the ...
به خواندن ادامه دهید
Flotation separation of smithsonite from calcite using 2-phosphonobutane-1, 2, 4-tricarboxylic acid as a depressant. Powder Technology, 352, 11-15. Zhang W., Honaker R., (2019). Low-cost selective precipitation circuit for recovery of rare earth elements from acid leachate of coal waste. U.S. Patent Application No. 16/185, 120.
به خواندن ادامه دهید
In particular, the flotation cell or column 12 in FIG. 1 may be configured to receive polymer-based blocks like synthetic beads containing one or more chemicals used in a flotation separation of the valuable material, including mining ores, that are encapsulated into polymers to provide a slow or targeted release of the chemical once released ...
به خواندن ادامه دهید