flotation of marmatite
2015-7-15 · Marmatite (Zn x Fe 1-x S) is an important zinc (Zn) source that contains 6 %–25 % ferrous iron [] oth flotation is widely used to recover marmatite by adding various reagents, such as collectors, frothers, and depressants. Frothers are important additives in flotation with a major influence on bubble size, stability [2–4], potential [5, 6], and froth phase [7–10].
In this work, the active sites and species involved in xanthate adsorption on sphalerite/marmatite surfaces were studied using adsorption capacity measurements, single mineral flotation, and time-of-flight secondary ion mass spectrometry (ToF-SIMS) analysis. The effects of Fe concentration on the xanthate adsorption capacity, Cu activation, and the flotation response of …
Run-qing Liu and Wei Sun and Yue-hua Hu and Dian-zuo Wang. ：. Three thiophenol collectors were tested for the flotation of marmatite without activation by copper sulfate. Flotation tests showed that marmatite flotation increased according to the following order: 2-fluoro thiophenol < 2-hydroxy thiophenol < 2-amino thiophenol.
2020-3-1 · The results of microflotation pointed out that the flotation of marmatite was significantly affected by CuSO4 activation. At weakly alkaline pH, marmatite activated by Cu2+ is …
We have unified the expressions of sphalerite and marmatite throughout the revised manuscript. Point 4: It is desirable to change from the term "batch flotation" to terms: "batch flotation of a single mineral" (15), batch flotation of the single minerals (79, 116, 303 and other).
2019-9-24 · The flotation tests of single mineral showed that lead-activated marmatite could be depressed efficiently using DMDC as the depressant. UV–vis spectroscopy and ICP study confirmed that DMDC had a stronger capacity of complexing …
Flotation of indium-beard marmatite from multi-metallic ore 2. Effect of vanadium occurrence state on the choice of extracting vanadium technology from stone coal 3. Vanadium recovery from clay vanadium mineral using an 5.
2019-3-29 · In this work, the active sites and species involved in xanthate adsorption on sphalerite/marmatite surfaces were studied using adsorption capacity measurements, single mineral flotation, and time-of-flight secondary …
The flotation test of mixture mineral shows that copper-activated marmatite can be separated efficiently from pyrrhotite using DMPS as depressant. Infrared adsorption spectra demonstrate that there are a number of function groups such as —SH and —SO3 in …
Semantic Scholar extracted view of "Marmatite depression in galena flotation" by K. Quast et al.
2011-5-31 · The difference between marmatite and sphalerite is the iron, which is present in the form of isomorphism. The marmatite is sensitive to lime and other depressants, and the addition of lime to pH 9.5 in the absence of any other zinc depressants is effective in reducing marmatite flotation[8]. Marmatite can be recovered through
@article{Zhang2014FlocFO, title={Floc flotation of marmatite fines in aqueous suspensions induced by butyl xanthate and ammonium dibutyl dithiophosphate}, author={Tingzheng Zhang and Wen-qing Qin and Congren Yang and Shui-peng Huang}, journal={Transactions of Nonferrous Metals Society of China}, year={2014}, volume={24}, pages={1578-1586} }
2016-8-1 · The purpose of this study is to investigate the effect of the dosage of sodium hypochlorite as activator on the flotations of depressed marmatite and depressed chalcopyrite, with a focus on activation-flotation kinetics. Four flotation kinetic models were applied to test data using 1stOpt statistical analysis software to estimate the relationships between the maximum …
The interaction between pine oil and marmatite without collectors and activators was investigated by flotation, scanning electron microscope and energy-dispersive spectrometer (SEM–EDS), infrared (IR) spectroscopy, Zeta potential, and first-principle theory calculations. The flotation results show that marmatite exhibits considerable floatability with the addition of pine oil. …
Floc flotation of marmatite fines in aqueous suspensions
The floatation behavior of marmatite in butyl xanthate solution as collector has been studied. The flotation recovery of marmatite is about 60% at a pH value lower than 6.0, but it decreases sharply at a pH higher than 8.0. It is larger than 50% when the pH is 6 and the pulp potential is in the range from 0.2 to 0.6. While the pH value is 9.18 or 11.0, the recovery is less than 50% no …
2006-6-1 · Marmatite floats best under acid condition and the recovery is more than 90%. The recovery drops fast when pH > 6. In the presence of cupric ions, the recovery of pyrrhotite does not vary at pH<8. but when pH>8, the recovery decreases by more than 40%. On the other hand, cupric ions promote the flotation of marmatite under tested pH values.
@article{Zhang2014FlocFO, title={Floc flotation of marmatite fines in aqueous suspensions induced by butyl xanthate and ammonium dibutyl dithiophosphate}, author={Tingzheng Zhang and Wen-qing Qin and Congren Yang and Shui-peng Huang}, journal={Transactions of Nonferrous Metals Society of China}, year={2014}, volume={24}, pages={1578-1586} } ...
2006-6-1 · An artificial mixture of minerals used in a flotation test showed that 2-aminothiophenol can effectively separate marmatite from jamesonite. A product assaying at 45.06% Zn and 4.06% Pb was produced.
Flotation, adsorption and zeta-potential tests of treated marmatite and chalcopyrite were performed. The flotation of marmatite was strongly depressed, while that of chalcopyrite was only slightly depressed, over a wide range of pH values when FCLS was used as depressant in the presence of Butyl Xanthate (BX).
2014-5-1 · Under good operating conditions, the floc flotation of marmatite fines as a function of KBX and ADD can all reach floatability over 90%, in comparison with conventional flotation obtaining floatability of about 60%. It also has been found that a small addition of kerosene greatly improved the floc flotation because of the formation of oil films ...
flotation tests indicated that the mixed depressant PASP/ZnSO 4 (PZ) exerted strong depressive effect on Cu-activated marmatite in the pH range of 9~12, but it had little effect on chalcopyrite flotation. The ore sample flotation experiments indicated the PZ system decreased the grade of Zn in Cu concentrate
2006-5-1 · 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 ...
The interaction between pine oil and marmatite without collectors and activators was investigated by flotation,scanning electron microscope and energy-dispersive spectrometer (SEM-EDS),infrared (IR) spectroscopy,Zeta potential,and first-principle theory calculations.The flotation results show that marmatite exhibits considerable floatability ...
Activation Flotation and Mechanism of Chalcopyrite and Marmatite Inhibited by CyanideCN
2018-6-13 · Zinc sulfide minerals are the primary choice for zinc extraction and marmatite is one of the two most common zinc sulphide minerals (sphalerite and marmatite), therefore it is of great significance to study and optimize the flotation of marmatite. To improve the activation of copper sulfate on marmatite, a method involving the addition of ammonium chloride is devised. The …
2012-8-13 · The results of microflotation pointed out that the flotation of marmatite was significantly affected by CuSO 4 activation. At weakly alkaline pH, marmatite activated by Cu 2+ is dependent on Cu 2+ concentration shown in electrochemical tests, and the activation products were Cu 2 S and CuS.
2008-8-21 · Flotation separation of marmatite from pyrrhotite using DMPS as depressant SUN Wei( ), LIU Run-qing(), CAO Xue-feng(), HU Yue-hua() School of Minerals Processing and Bioengineering, Central South University, Changsha 410083, China
【】：The interaction between pine oil and marmatite without collectors and activators was investigated by flotation,scanning electron microscope and energy-dispersive spectrometer(SEM-EDS),infrared(IR) spectroscopy,Zeta potential,and first-principle theory calculations.The flotation results show that marmatite exhibits considerable floatability with the addition of pine oil.SEM …
2014-6-3 · objectives are to research the flotation behavior of marmatite >38 µm. While reports about marmatite <38 µm are very little. In this work, the hydrophobic flocculation of marmatite fines and the adsorption of butyl xanthate and ammonium dibutyl dithiophosphate on marmatite were studied using laser particle size analysis, microscopy
2015-7-15 · First, the surface of 0.5 g marmatite sam ple was treated for. 10 min with an ultrasonic cleaner. Second, the samples. with 0.1 g pine oil were added to 20 ml deionized water. The mixture was ...
2010-1-1 · Fig. 3 shows the flotation recovery of marmatite with the three thiophenols and butyl xanthate as collectors. Without activation by copper sulfate, marmatite recovery was more than 80% when 2-amino thiophenol and 2-hydroxy thiophenol were used as collectors over a wide pH range, as shown in Fig. 3 was also found that 2-fluoro thiophenol and xanthate have a weak …
2013-9-25 · They have the same flotation properties and the high iron content makes the sphalerite almost black. Their was a lot of this "black jack" at …
Abstract: In the presence of Cu 2+ ion, and pH range of 2.0 to 12.0, the floatability of pyrrhotite and marmatite is well, so marmatite can not be separated from pyrrhotite. The technique of electrochemical flotation was used to separate marmatite from pyrrhotite in the ...
2015-11-16 · flotationrecovery threethiophenols butylxanthate collectors.Without activation coppersulfate, marmatite recovery morethan 80% when aminothiophenol 2-hydroxythiophenol were used collec-tors over widepH range, alsofound 2-fluorothiophenol xanthatehave weakcollecting property marmatite.Four collectors were tested effectivenessdecreased …
2008-4-1 · Pyrrhotite can be depressed and marmatite be floated through controlling the potential of flotation. Marmatite can be separated from pyrrhotite in the pulp potential range of - …
Flotation of indium-beard marmatite from Mengzi multi-metal sulfide ore in the low alkali conditions was studied. It shows that the mixed reagent X-41 (Main chemical components: Cu≧12%, S≧18%, O≧48%, H≧4.5%) as a new activator in the flotation at pH 9.5 produced a much better beneficiation than the copper sulfate at pH 13. The grade of zinc and indium was …