2014-7-12 Selective floatation of base metal sulphide minerals can be achieved by using selective reagents. Sequential floatation of chalcopyrite–sphalerite from Taknar (Iran) massive sulphide ore with 3.5 % Zn and 1.26 % Cu was studied. D-optimal design of response surface methodology was used.
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2015-10-15 Five flotation products were collected from each test: Cu–Pb cleaner concentrate (Cu CC), Cu–Pb cleaner tailing (Cu CT), Zn cleaner concentrate (Zn CC), Zn cleaner tailing (Zn CC) and final tailing (Fig. 1c). Their chemical composition was analysed by X-ray fluorescence spectrometry (XRF) at Boliden laboratories.
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Problems arising during flotation of complex Cu-Pb-Zn sulphide ores are in general of geological origin. The features of these ores are reviewed, stressing that mineralogical studies extending to process mineralogy are prerequisite for a consistent flotation process. Some examples affecting flotation are
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In a beneficiation tests of a Cu-Pb-Zn polymetallic sulfide ore, the sequential preferential flotation process by the order of copper- lead-zinc was adopted, and the products, including copper concentrate assaying 19.84 % Cu at recovery of 60.25 %, lead concentrate assaying 72.34 % Pb at recovery of 73.04%, zinc concentrate assaying 50.55 % Zn at recovery of 88.46 %, were abtaned.
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2021-3-19 This is now seldom used, as the preferred technique is to float a bulk copper-lead concentrate selectively with depression of zinc and iron, followed by reflotation of the copper-lead tailing for recovery of zinc[9]. The polymetallic separation flowsheet of copper/lead bulk flotation–copper lead separation–priority floating zinc
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The research results showed that the pre-removal of carbonaceous mud - asynchronous flotation process got a better flotation results than the conventional process. Using the former approach the copper grade in concentrate achieved to 21.2% and the recovery achieved to 88.55% when the raw ore contained 2.63 % Cu, 0.04% Co and 6.63% C.
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2019-10-1 (1) Es Cu, Fe, Pb, Zn = Concentration of Cu, Fe, Pb or Zn extracted by EDTA (mg) Cu, Fe, Pb, Zn content of ore sample (g) Repeat tests were performed using randomly selected fourteen samples to determine the reproducibility of the test. The maximum standard deviation ranges from 1% to 10% depending on the grade of the sample. 2.3. Flotation test conditions
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2021-6-16 Working with minerals containing charcoal quite content with Ag, Pb, Cu and Zn to the grinding depressants zinc sulfate, bisulphite, and sodium cyanide was added and then a naturally floatable coal flotation was performed subsequently with sparkling MIBC flotation bulk and then copper lead separation in cleaning dextrin was added to depress the fine coal with good results.
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2020-9-1 In the Cu-Zn-In bulk flotation experiments, the selective flotation of chalcopyrite, sphalerite, stannite and roquesite from their associated oxide gangue minerals was successfully achieved by using cupric sulphate (CuSO 4) as the activator and sodium butyl xanthate (C 4 H 9 OCSSNa) as the collector, without adding any depressant. In the flotation experiments for As removal, the utilised quicklime
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2012-10-1 The methodology is based on derivation of an ore specific calibration curve and prediction of flotation performance of different ore types from the same deposit by using the calibration curve. The results of the test works performed using a complex Cu–Zn sulphide ore from Çayeli Bakır İşletmeleri A.Ş., Turkey are discussed in this paper.
Read MoreAbstract The Rockliden massive sulphide Zn–Cu deposit contains minor amounts of Sb minerals. The Sb mineralogy is complex in terms of composition, micro textures and mineral associations. The main Sb minerals comprise tetrahedrite, bournonite, gudmundite and Sb–Pb sulphides such as meneghinite. The presence of these minerals is especially critical to the quality of the Cu–Pb concentrate ...
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Distribution of Sb minerals in the Cu and Zn flotation of Rockliden massive sulphide ore in north-central Sweden. Minerals Engineering, 2015. Christina Wanhainen. Jens Gutzmer ... This paper. A short summary of this paper. 36 Full PDFs related to this paper. READ PAPER. Distribution of Sb minerals in the Cu and Zn flotation of Rockliden massive ...
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2015-2-6 Cu-Zn sulphide ore was used as feed for flotation tests. This feed contains Chalcopyrite, sphalerite and pyrite with 4, 4 and 8 percent respectively. Cu and Zn contents were 1.26 and 3.5 percent. The results have shown that, dextrin is a suitable depressant for pyrite and sphalerite in the first stage of flotation. When cyanide was
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2018-7-29 This paper compares the use of the JKMSI technique and the Oxidation Index methodology to evaluate the change in flotation performance of Cu-Zn complex sulphide ore samples treated with hydrogen peroxide to generate artificially different levels of oxidation and thus ore floatability.
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Intricate Cu,Pb and Zn sulphide ore is difficult to be separated by flotation,because Cu,Pb and Zn minerals is very close and the side of these minerals in ting.According to the minerals characteristic,the experiment developed conflotationable flotation flewsheet and Pb,Zn mixed concentrate regrinded to successfully separate Pb and Zn.
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2012-12-3 Floe-Flotation of Chalcopyrite from a Low Grade Cu —Zn Ore by another 7% without affecting the grade much. Moreover, by decreasing the feed size the percentage of Cu reporting to the Zn circuit is minimized from 17.8% to 15.3%. The results are depicted in Fig.3. Effect of Ph on Cu Flotation
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This paper is aimed at a typical complex polymetallic copper-zinc sulfide ores in Yunnan province, China, and adopted the process of bulk floatation discarding tailing under coarse grinding condition, the influence factors are researched such as grinding fineness, types and dosage of flotation reagents. When the coarse grinding size-74μm 75% and butyl xanthate and ethyl xanthate as ...
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15.3 Reagent Practice Using Sequential Copper-Lead-Zinc Flotation Technique ..... 373 15.3.1 Bisulfide sequential copper-lead-zinc flotation method ..... 373 15.3.2 Soda ash-sulfurous acid Cu-Pb-Zn sequential flotation method ..... 374 15.3.3 The lime-starch-SO 2 depressant system in sequential
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2018-5-18 Flotation is the most common and commercial technique applied to recover nonferrous oxide minerals and for zinc recovery, sulfidization with alkali metal sulfides, followed by treatment with ...
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2015-1-30 Oil and froth float on the surface along with the sulphide ore. The gangue particles being insoluble in oil remain at the bottom of the water tank. The froth is removed and allowed to settle down. This is called the froth-floating process. This process is used for sulphide ores of Cu, Pb and Zn 10 11.
Read MoreAbstract The Rockliden massive sulphide Zn–Cu deposit contains minor amounts of Sb minerals. The Sb mineralogy is complex in terms of composition, micro textures and mineral associations. The main Sb minerals comprise tetrahedrite, bournonite, gudmundite and Sb–Pb sulphides such as meneghinite. The presence of these minerals is especially critical to the quality of the Cu–Pb concentrate ...
Read MoreThis paper is aimed at a typical complex polymetallic copper-zinc sulfide ores in Yunnan province, China, and adopted the process of bulk floatation discarding tailing under coarse grinding condition, the influence factors are researched such as grinding fineness, types and dosage of flotation reagents. When the coarse grinding size-74μm 75% and butyl xanthate and ethyl xanthate as ...
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2021-6-4 currently, batch rougher flotation test is ongoing in our metallurgical lab. the test is aimed to separate sulfide ore Cu and Zn in their circuit, but in the zinc rougher circuit normally, we observe grey, bit shiny and oily surface which does not let good froth flotation. what do you think is that
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A statistical approach to precipitate flotation of CuS/ZnS The precipitate flotation of copper and zinc, as sulphides, by cationic surfactants (mainly laurylamine) was studied at a pH of about 2, as a selective separation method for the two dissolved metals from dilute aqueous solutions.
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In light of the characteristics of copper-lead-zinc polymetallic sulphide ore,an effective flotation flowsheet was achieved by the contrast of many schemes.The flotation flowsheet consists of bulk flotation of copper and lead and combined depressants.The separatoin of copper and lead was realized successfully.The preferable flotation index was obtained.
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2018-12-10 sulphide precipitation-flotation method was proposed. The results showed that carbon removal rate was 90.7%, and the dioxin removal percentage was 91.0% during decarburization flotation. And Zn, Pb and Cu in residual slurry were acid-leached with the removal efficiencies being 91.3%, 79.2% and 85.6%, respectively. The optimum sulphidation condition
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2020-3-16 Jia Y W. Experimental research on copper-lead flotation separation of a Cu-Pb-Zn sulfide ore in Yunnan. Min Metall Eng, 2009, 29(4): 47 doi: 10.3969/j.issn.0253-6099.2009.04.013 [3] 王明燕, 郜伟, 王玲. 云南某金多金属矿的工艺矿物学研究. 有色金属(选矿部分
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2009-8-27 1 Froth Flotation – Fundamental Principles Froth flotation is a highly versatile method for physically separating particles based on differences in the ability of air bubbles to selectively adhere to specific mineral surfaces in a mineral/water slurry. The particles with attached air bubbles are then carried to the surface and
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Online ISSN : 1883-9142 Print ISSN : 0427-7775 ISSN-L : 0427-7775
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2019-12-12 The maximum PGM flotation recovery achieved using sulphide co-collector schemes was 55.1% 3E (Pt, Pd, and Au). Application of the hydroxamate oxide collector improved the flotation recovery to 74.7% 3E. The superior PGM recoveries achieved with hydroxamates probably lies in their ability to form complexes with base metals such as iron.
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