— The technology for beneficiation of banded iron ores containing low iron value is a challenging task due to increasing demand of quality iron ore in India A flotation process has been developed to treat one such ore namely banded hematite quartzite BHQ containing % Fe and % SiO 2 by using oleic acid methyl isobutyl carbinol
WhatsApp
The effects of siderite on reverse flotation of hematite were investigated using micro flotation adsorption tests and Fourier transform infrared spectroscopy The flotation results show that interactions between siderite and quartz are the main reasons that siderite significantly influences the floatability
— The effects of carbonate minerals dolomite and siderite on the flotation of hematite using sodium oleate as a collector were investigated through flotation tests supplemented by dissolution measurements solution chemistry calculations zeta potential measurements Fourier transform infrared FTIR spectroscopic studies and X ray
WhatsApp
— The effects of siderite on reverse flotation of hematite were investigated using micro flotation adsorption tests and Fourier transform infrared spectroscopy The flotation results show that interactions between siderite and quartz are the main reasons that siderite significantly influences the floatability The interactions are attributed to dissolved
WhatsApp
— For secular hematite PZC=pH the maximum flotation of both oleic acid and sodium oleate occurred at pH 8 Kulkarni et al 1980 found that the maximum flotation of natural hematite takes place in neutral pH in the presence of 3×10 −5 mol/dm 3 oleate They postulated that the acid soap formed at neutral pH plays the significant role
WhatsApp
DOI / Corpus ID 257360889; Three phase froth stability in hematite flotation using DDA as a collector article{Li2023ThreephaseFS title={Three phase froth stability in hematite flotation using DDA as a collector} author={Rongjiao Li and Ximei Luo and Shuming Wen and C Li and Dayong Wei and Wen Yang and Ying Zhang
WhatsApp
— The study revealed that hematite flotation recovery is maximum at acidic pH with sulphate at neutral pH 6 7 with oleate and at basic pH about with C12 amine It is the first time that the
WhatsApp
— The pure hematite flotation tests performed with amidoamine as the collector showed that no hematite was floated This absence of hematite flotation is in accordance with the contact angle measurements for hematite with amidoamine Moreover when comparing the hematite recovery to the floated fraction by etheramine 68% versus
WhatsApp
— In this paper we report the benefits of partial replacement of amine collectors with a frother in reverse cationic flotation of hematite Surface tension and batch flotation experimental results indicated for the first time that replacing Flotigam EDA an etheramine collector by more than 10% improved the flotation performance in both grade
WhatsApp
— The recovered microflotation of quartz and hematite is shown as a function of flotation time at pH in Fig 2 For equivalent physico chemical conditions the recovery of quartz was near 100% after 6 min of flotation On the other hand the recovery of hematite showed values close to 0% for the same flotation time
WhatsApp
— The cation reverse flotation is a widely used method in improving the grade of iron ore concentrate but hematite depressant is the key In this work the flotation behavior of hematite and quartz using the complex of Fe III and xanthan gum Fe III XG as depressant was investigated via micro flotation tests
WhatsApp
In this study the influence of sodium lauryl sulfate SLS on the stability of dodecylamine DDA froth during the reverse flotation of hematite was investigated due to the frequent issue of excessively viscous foam leading to suboptimal reverse flotation outcomes
WhatsApp
— List of Figures Figure Simplified flotation scavenger circuit at Plant Figure Fine and low grade hematite ore beneficiation process flowsheet Mariani and
WhatsApp
— The flotation response of hematite as a function of pH at fixed cationic and anionic collector concentration is shown in Fig clearly indicate that with cationic C 12 amine collector the flotation recovery increases with the increase of pH till around pH and thereafter the recovery decreases marginally A maximum recovery with C 12
WhatsApp
— A bulk of silica sand was taken from Kowli Kosh silica sand mine to reduce its hematite content by reverse flotation The raw sample consisted of % SiO 2 and % Fe 2 O 3 and traces of Al 2 O 3 CaO MgO Na 2 O K 2 O TiO 2 Fig 1 illustrates a general block diagram for the hematite removal process from silica sand The sample was
WhatsApp
— The results of flotation optimization of hematite ores using matrix of second order center rotatable uniform design allowed to define the collector concentration impeller rotation speed and air
WhatsApp
— fractions on hematite flotation Figure 1 shows the hematite recovery as a function of fraction of dolomite with different size fractions using sodium oleate as collector at pH of about 9 As can be seen the hematite recovery decreases gradually when the fraction of dolomite with 45106 −μm size increases The
WhatsApp
— Hematite reverse flotation pulp is seriously deteriorated by chlorite due to the dissolution of chemical components metal ions on its surface This study focused on the effect of sodium alginate on hematite reverse flotation The results indicated that the addition of sodium alginate contributes to improving the chlorite entrainment
— However starch could depress the flotation of hematite Flotation recovery of % for quartz could be achieved when N23 concentration was mg/L and starch concentration was mg/L at
WhatsApp
— The adhesion behavior between particles in the pulp will seriously affect the index of concentrate In this paper the effect of citric acid on chlorite in hematite reverse flotation system was studied The flotation test and settlement test of artificial mixed ore showed that a lower dosage of citric acid could significantly improve the removal rate of
WhatsApp
نحن نقدم للعملاء مجموعة متنوعة من معدات التكسير عالية الجودة، ومعدات صنع الرمل، والكسارات المتنقلة، ونعمل على تحسين مجموعة الأنواع المختلفة من المعدات لتلبية احتياجات العمليات المختلفة.
Copyright ©2000- 2024 | الشركة المصنعة للكسارة SHBM
