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One of the major aims of this study, therefore, was to analyze and investigate the effects of hydrocarbon chain length (2–5 carbon atoms) and …
The current study investigated the effects of thiol collectors on the flotation of base metals (BMs) and platinum group metals (PGMs) ores. The properties of a single-mineral flotation test were conducted using sodium isobutyl xanthate (SIBX), sodium ethyl xanthate (), potassium ethyl xanthate (PEX), and sodium isopropyl xanthate (SIPX) …
The results of the flotation test indicated that MATT exhibited an excellent depression ability on galena but barely influenced the flotation of molybdenite in the pH range of 6.0–11.0.
In this study, selective adsorption mechanism of zinc ions on the surfaces of galena and sphalerite in the flotation separation of Pb-Zn was comprehensively …
DOI: 10.1016/J.APT.2013.12.008 Corpus ID: 95049207; Formation of hydrogen peroxide by galena and its influence on flotation @article{Nooshabadi2014FormationOH, title={Formation of hydrogen peroxide by galena and its influence on flotation}, author={Alireza Javadi Nooshabadi and Kota …
To further confirming the depression performance of PBTCA on the flotation separation of sphalerite and galena, the flotation tests of synthetic mixture minerals were also performed. The effect of PBTCA concentration on the recoveries of sphalerite and galena are displayed in Fig. 5. Without PBTCA, it was impossible to …
The phosphate is low silicon carbonate collophane, gangue mainly dolomite. determine one-stage roughing and one-stage scavenging reverse flotation test process,the grinding fineness of 92.86% -200 ...
Collector type and pulp pH play an important role in the lead–zinc ore flotation process. In the current study, the effect of pulp pH and the collector type parameters on the galena and ...
This study presents an organic reagent, quercetin, as a flotation depressant used to effectively separate chalcopyrite and galena. Quercetin and O-isopropyl-N-ethyl thionocarbamate (IPETC) are used as depressants and collectors, respectively, and results of micro-flotation tests showed that quercetin can depress galena and has less effect …
Abstract The mechanism of carboxymethyl cellulose (CMC) on the galena surface and the enhancement of KMnO4 on the depression of CMC to galena were investigated by flotation test, surface adsorption experiments, scanning electron microscopy-energy dispersive spectrometry (SEM-EDS), and X-ray photoelectron …
Micro-flotation tests demonstrate that chalcopyrite and galena recovery remarkably decline by 50% and 70%, respectively, because of SS addition in a mineral–butyl xanthate (BX) flotation system.
The test is a means of determining the flotation characteristics of an ore. It is conducted in a laboratory scale cell usually with a volume of two point five litres. The intention is to generate …
Each flotation test was performed with pure 50 g samples of sulphide minerals (galena, sphalerite and pyrite) by using a 500 mL XFD single flotation cell. In the collecting …
The mechanism of carboxymethyl cellulose (CMC) on the galena surface and the enhancement of KMnO4 on the depression of CMC to galena were investigated by flotation test, surface adsorption ...
This study investigated the influence of mineral oxidation on Cu-Pb separation using green reagent sodium humate as depressant for galena. The flotation tests showed that sodium humate had a poor ...
The flotabilities of chalcopyrite and galena with sodium humate (HA) and ammonium persulfate (APS) as the depressant were studied by flotation test, adsorption measurement and infrared ...
The flotation performances of BET, SDD and ADD for galena were first compared through raw ore flotation experiment. Next, the flotation properties of three collectors toward Pb 2+ /galena were researched in detail through the test of their interactions with mineral metal ions and pure minerals.
The ores from which silver and gold are recoverable by flotation divide themselves naturally into two general processing classes: ores in which the valuable minerals are those of the base metals, the precious metals being incidental constituents, and ores in which the gold and silver are of primary importance, the base-metal …
The effct of pulp temperature change on galena flotation was studied though the single mineral flotation test with butyl xanthate (NaBX) as the collector and 4-Methyl-2-pentanol (MIBC) as the frother. Meanwhile, the effect mechanisms of pulp temperature change on recovery were investigated by infrared spectrum, Zeta potential, …
Galena flotation consumes a large amount of fresh water resources. Global identified lead resources amount to 1.5 billion tons, with 80 million tons of lead reserves, mainly distributed in Australia, China, ... PRO MPD), XPS analysis and micro-flotation test. Additionally, -38 μm samples were further ground to less than 5 μm and used for the ...
The effects of utilizing recycled tailings pond water from the flotation plant at the Mining Company of Guemassa (MCG) on galena recovery and selectivity towards chalcopyrite (RPb-Cu), sphalerite ...
A typical test result was a reduction of arsenic in jig concentrate from 0.75% arsenic to 0.007% arsenic. ... contained considerable arsenic and finer grinding is indicated to free the locked galena, for recovery by table flotation or by froth flotation. Other Metals:
The results of micro-flotation tests proved that HA was an efficient and selective sphalerite depressant, which could depress sphalerite but hardly influence the flotation of galena to achieve ...
Galena (PbS) and chalcopyrite (CuFeS2) are sulfide minerals that exhibit good floatability characteristics. Thus, efficiently separating them via common flotation is challenging. Herein, a new method of surface sulfuric acid corrosion in conjunction with flotation separation was proposed, and the efficient separation of galena and …
Abstract. The mechanism of carboxymethyl cellulose (CMC) on the galena surface and the enhancement of KMnO 4 on the depression of CMC to galena were investigated by flotation test, surface adsorption experiments, scanning electron microscopy-energy dispersive spectrometry (SEM-EDS), and X-ray photoelectron …
The results of the flotation test indicated that MATT exhibited an excellent depression ability on galena but barely influenced the flotation of molybdenite in the pH range of 6.0–11.0.
In this section, the analysis used the test conditions of Section 2.2.1 (at 20 ℃, magnetic stirring for 30 min) to perform surface modification-flotation test on galena. The test process was shown in Fig. 2 with a single flotation roughing 3 min, and the results are shown in Fig. 3. Download : Download high-res image (228KB)
The proper oxidation of galena surface is a prerequisite for the depression of galena by HA. 2) The closed-circuit flotation test of copper/lead bulk concentrate showed that grade and recovery of Cu in copper concentrate are 30.47% and 89.16%, those of Pb are 2.06% and 1.58%, respectively; the grade and recovery of Pb in lead concentrate …
In this study, a novel organic depressant maleyl 5-amino-1,3,4-thiadiazole-2-thiol (MATT) was synthesized and utilized as a galena depressant in the flotation separation of molybdenite and galena. The results of the flotation test indicated that MATT exhibited an excellent depression ability on galena but barely influenced the flotation of molybdenite …
Flotation test results show that when the concentration of HDBP is 5 × 10 −5 mol/L and the pH range is pH 6–8, HDBP effectively achieved the selective collection of chalcopyrite. Under these conditions, the recovery of chalcopyrite was more than 85%, while the recoveries of galena and pyrite were less than 20%.