problem of chrome in flotation
Flotation concentrates derived from processing UG2 ore are typically characterized by high chrome contents (>3 wt%) which are not amenable to conventional PGM smelters The net effect of high2021年8月4日· Flotation concentrates derived from processing UG2 ore are typically characterized by high chrome contents (>3 wt%) which are not amenable toThe Reduction of Chrome in UG2 Flotation Concentrate by
2007年6月15日· It is wellknown that flotation of chromite and serpentine is very difficult, especially in oleate flotation, due to similar surface properties of both minerals and to2007年6月15日· The flotation of chromite from “slime fraction” of the gravity circuit of Kemi concentrator, Finland was studied The main(PDF) Flotation of chromite and serpentine ResearchGate
However, the problem of separating a small amount of chrome spinel from a large amount of ilmenite requires a different approach to that from separating chromite from siliceous1996年5月1日· The flotation was also found to favour the recovery of chromite particles with high chrome to iron ratio The experiments showed a distinct abundance betweenThe effect of surface potential on the flotation of chromite
2017年6月5日· This was done by preconditioning the pulp with fuel oil and fluoride ion The chromite collector was a mixture of a longchain fatty acid and petroleum sulfonate The modified Havens method usually resulted2017年8月1日· The flotation of naturally occurring chromite was found to depend on whether the ground material was aged in air or not and whether the mineral had been heated In general the observed effects could beChromite Flotation 911 Metallurgist
2023年2月15日· However, excessive aeration and agitation can lead to bad effects: (1) Promote the merger of bubbles (2) Reduce the concentrate quality (3) Increase theThe results obtained indicate that the installation of chrome plant in the middle of flotation circuit reduced the amount of chrome in the final PGM’s product and PGMs entrained inDevelopment of PGMs and Chrome Extraction Circuit from UG 2 Ore
2021年8月4日· Flotation concentrates derived from processing UG2 ore are typically characterized by high chrome contents (>3 wt%) which are not amenable to conventional PGM smelters The net effect of high chrome, inter alia, includes increased smelting energy requirements and the reduction of effective furnace capacityMSc Dissertation The Reduction of Chrome in UG2 Flotation Concentrate by Hydrometallurgical Means 2022 iii Using the optimised leaching conditions, further experiments conducted to test different solidtoliquid ratios yielded a Cr extraction of 76% at 1:2 solidtoliquid ratio and 368% at 1:26 solidtoliquid ratioTHE REDUCTION OF CHROME IN UG2 FLOTATION
increased viscosity effects attributed to unreacted PGM flotation chemicals present in some samples The viscosity effects were less pronounced at higher background magnetic field intensities, and this needs more investigation The reverse upgrade of PGMs in the WHIMS tailings stream, through chromite removal to the magnetic concentrate stream,2022年2月1日· In the flotation of the dry grinding products with xanthate, the optimal grinding condition for pyrite particles was with 30% chrome steel under atmospheric environment (30% Cr + air) While for the flotation of the grinding discharge, the optimal grinding conditions were with forged steel under atmospheric environment (forged + air)Influence of grinding conditions on the pulp chemistry and flotation
2022年9月1日· In the course of these studies, significant progress has been made by developing a better understanding of the mechanisms of collector adsorption in the flotation of chromite from silicate gangue (eg Gallios et al, 2007, Güney and Atak, 1997, Sagheer, 1966) as well as the combination of magnetic and gravity separation with flotation to2014年10月1日· Effect of pressure on chromium removal efficiency percent a Coagulant type FeC13, b coagulant type PAC, coagulant dosage 1,000 ppm, Cr(VI) initial concentration 1,000 ppm, and pH 10 flotation(PDF) Removal of Chromium by Coagulation
2017年8月1日· Flotation recovery of chromite as a function of pH at constant SDS concentration 1 x 10 4 M is shown in figure 2 The four separate curves of the figure demonstrate the effect of aging of dry2011年11月15日· Recent years has seen an upsurge in the interest for recovering PGM concentrates from traditional chrome producer’s tailings streams and dams rougher flotation and 23 stages of cleaningPGM recovery from chromite tailings ResearchGate
2021年4月6日· Test results from three of the samples showed that, without prior desliming of the pulp, 78 to 91 percent of the chromium could be recovered in concentrates of 90 percent or more chromite; two samples2016年6月7日· Chrome has a low beneficiation cost compared to other metals and is therefore an integral part of the extraction process on UG2 ores during these difficult economic times The PGMs are typicallyChrome beneficiation from PGM flotation tailings
MSc Dissertation The Reduction of Chrome in UG2 Flotation Concentrate by Hydrometallurgical Means 2022 iii Using the optimised leaching conditions, further experiments conducted to test different solidtoliquid ratios yielded a Cr extraction of 76% at 1:2 solidtoliquid ratio and 368% at 1:26 solidtoliquid ratio2022年2月1日· In the flotation of the dry grinding products with xanthate, the optimal grinding condition for pyrite particles was with 30% chrome steel under atmospheric environment (30% Cr + air) While for the flotation of the grinding discharge, the optimal grinding conditions were with forged steel under atmospheric environment (forged + air)Influence of grinding conditions on the pulp chemistry and flotation
2022年9月1日· In the course of these studies, significant progress has been made by developing a better understanding of the mechanisms of collector adsorption in the flotation of chromite from silicate gangue (eg Gallios et al, 2007, Güney and Atak, 1997, Sagheer, 1966) as well as the combination of magnetic and gravity separation with flotation toincreased viscosity effects attributed to unreacted PGM flotation chemicals present in some samples The viscosity effects were less pronounced at higher background magnetic field intensities, and this needs more investigation The reverse upgrade of PGMs in the WHIMS tailings stream, through chromite removal to the magnetic concentrate stream,Fine chrome beneficiation and reverse PGM upgrade of
2014年10月1日· Effect of pressure on chromium removal efficiency percent a Coagulant type FeC13, b coagulant type PAC, coagulant dosage 1,000 ppm, Cr(VI) initial concentration 1,000 ppm, and pH 10 flotationalance in mineral processing is discussed through some problems The reader should also go through the references for the details 12 Conclusion In this lecture material b References: 1 Kelly and Spotiswood: introduction to mineral processing 2 Gaudin: Elements of ore dressingLecture 11: Material balance in mineral processing 911
2017年8月1日· The present work reports on the effects of various pretreatments of chromite on the mineral’s flotation behavior when sodium dodecylsulfate (SDS) and dodecylammonium chloride (DAC) were used2021年4月6日· Test results from three of the samples showed that, without prior desliming of the pulp, 78 to 91 percent of the chromium could be recovered in concentrates of 90 percent or more chromite; two samplesRecover Chromite by Flotation 911 Metallurgist
fraction below 106μm showed the chrome content averaging 33% The grain size of between 1000μm and 106μm showed an average chromite content of 127% The XRD results revealed that the sample is Magnesiochromite along with the different gangue minerals such as Quartz, Enstatite ferroan, FIron diiron2016年6月7日· Chrome has a low beneficiation cost compared to other metals and is therefore an integral part of the extraction process on UG2 ores during these difficult economic times The PGMs are typicallyChrome beneficiation from PGM flotation tailings
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