Siderite extensively mined as a natural iron mineral is often discarded as tailings due to the low grade of the ore and due to the high cost of current sorting technologies Yet this mineral has demonstrated significant potential in several
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
Anshan flotation plant in China Yin et al 2010; Luo et al 2017; Luo et al 2016b Due to the low hardness carbonate minerals are easily ground to slime which tends to adhere to or cover on other minerals resulting in similar surface characteristics and
MS 2 a novel dispersant was employed to improve the innovative dispersion flotation of carbonate bearing refractory iron quality iron concentrates TFe grade of % and recovery of % were achieved by the locked cycle flotation tests and analyzed by X ray diffraction and scanning electron microscopy to investigate the surface morphology
with siderite or dolomite is defined as follows εT11 22= γε γε 1 where ε1 and ε2 are the recovery of hematite and carbonate mineral siderite or dolomite in single mineral flotation respectively γ1 is the mass fraction of hematite in the mix tures and γ2 is the mass fraction of siderite or dolomite in the mixtures
Quartz is in most cases the major gangue mineral found in the iron ores Although it can be activated by calcium at strong alkaline pH quartz nevertheless reports to the concentrate with Fe when the iron ores contain siderite It causes a poor
Due to the easy sliming of siderite heterocoagulation among siderite hematite and quartz is a major challenge in the flotation of carbonate bearing iron ore [1 2] Although a stepped flotation method was proposed and used to treat the iron ore the grade and recovery of the concentrates decreased with the increasing content and decreasing particle sizes of the
The flotation results showed that quartz could be collected effectively at pH in the reverse flotation For siderite the recovery peaked at % at pH where siderite presented different floatability from magnetite and hematite Exploiting such difference the separation of siderite could be achieved
The presence of carbonate minerals such as siderite causes a detrimental effect on quartz flotation recovery froth product and separation selectivity between quartz and iron minerals In this work the effect of carbonate minerals on quartz flotation from iron mineral was investigated using sodium oleate as collector starch and calcium as
Pregelatinized starch PS was used for the selective flocculation and flotation of fine siderite in a carbonate containing iron ore With PS the flotation of fine siderite was improved The repulsive forces between fine siderite particles and the attractive forces between siderite and hematite or quartz were decreased after treatment with PS indicating that the aggregation of
Pregelatinized starch PS was used for the selective flocculation and flotation of fine siderite in carbonate containing iron ore With PS the flotation of fine siderite was improved
In the Anshan region of China the typical carbonate bearing iron ore includes siderite and hematite as valuable minerals and quartz as the main gangue mineral A two step flotation process Fig 1 is adopted for efficient separation of ore Yin et al 2010 The first step is the direct flotation of the siderite by NaOL and the second step
Many researchers have focused on the separation of hematite from gangue minerals using the froth flotation process [10] [11][12][13] the reverse anionic flotation of quartz [14][15][16] and the
Its Fe grade is usually in the range of 30 40% with quartz hornblende muscovite siderite as the main gangue minerals The flotation process is widely used to beneficiate the Anshan type of hematite in China but the concentrate iron recovery and grade are often not satisfactory
Both natural cleavage plane of siderite and calculated plane were used to investigate the flotation of the three minerals Based on the molecular simulation in solution with water as medium adsorption quantity and interaction capability of oleate ions on the three minerals indicated that siderite could be collected efficiently by sodium oleate
Mineral samples of siderite hematite and quartz were obtained from Liaoning Province in China Single mineral flotation showed that gelatinized starch GS selectively depressed the barite flotation with different size fractions while it had little effect on fluorite flotation using sodium oleate NaOl as the collector suggesting the
International Journal of Minerals Metallurgy and Materials IJMMM ISSN 1674 4799 CN 11 5787/TF monthly started in 1994 The effects of siderite on reverse flotation of hematite were investigated using micro flotation adsorption tests and Fourier The
The first direct flotation for siderite was removed and a regular reverse anionic flotation simply by adding MS 2 can be applied to achieve good flotation performance This also indicates that MS 2 is a powerful dispersant with outstanding selectivity for siderite minerals Surface morphology of flotation concentrates and tailings
During the process of flotation practice fine siderite particles and gangues such as quartz etc always co exist in the pulp Though the available literatures are rich in the information about aggregation flocculation of single siderite particles the authors are unaware of any reported data about particles hetero aggregation for the mixture of siderite and quartz
Many researchers have focused on the separation of hematite from gangue minerals using the froth flotation process [10] [11][12][13] the reverse anionic flotation of quartz [14][15][16] and the
In order to effectively eliminate the effect of fine carbonate minerals on quartz flotation the influence of fine siderite on quartz flotation was studied as well as the mechanism or role of ultrasonic treatment in the process The results of adsorption capacity measurement and flotation solution chemical calculation show that fine siderite and its dissolved components
If siderite is the main carbonate mineral in sample S its low flotation can be explained by its low affinity to the hydroxamate collector because iron in siderite is mainly in Fe II state Miller et al 2002
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