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)
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 electrochemical flotation behavior of galena and its mechanism are systematically introduced with consideration of oxidation of galena, adsorption of …
A study of the role of oxygen in xanthate flotation of galena, pyrite, and chalcopyrite was reported by Ireneus Klymowsky, and the results obtained suggest that adsorption of collector on pyrite decreased in oxygen saturated solutions, and that bubble adhesion requires the presence of dissolved oxygen. However, each mineral required a ...
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 …
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 …
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 …
Separation test results of galena and chalcopyrite validates the theoretical analysis. Abstract. The development of galena flotation inhibitors is a key focus and …
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 …
In the current study, the effect of pulp pH and the collector type parameters on the galena and sphalerite flotation from a complex lead–zinc–iron ore was …
Chalcopyrite and galena are primary raw materials for producing Cu and Pb metals, respectively. Flotation is still the main method to recover these two minerals. So …
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 …
Single mineral flotation test shows that the slurry oxidation environment and the proper oxidation of galena surface are prerequisites for the depression of galena by sodium humate.
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 ...
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.
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 ...
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 …
In this paper, a novel collector S-benzyl-N-ethoxycarbonyl thiocarbamate (BET) was utilized used as flotation collector to selectively separate galena from a …
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.
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 ...
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 ...
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%.
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 …
Laboratory flotation tests were conducted to investigate the role of pH, zinc sulphate and potassium metabisulphite in the flotation of galena and marmatite in the Broken Hill orebody. Marmatite was depressed under alkaline conditions alone, however the addition of the two depressants, either individually or combined, resulted in the greatest ...
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:
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 …
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 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 …
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