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2009-9-29The flotation recoveries of quartz, calamine and calcite rise sharply with the rise of pH. And in a wide range of pH, their flotation recoveries all exceed 90. And in the whole flotation experiment, the flotation recovery of hematite rises with the increase of collector
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Mycobacterium phlei has very good potential as a hematite flotation collector. The flotation recovery of hematite is dependent upon the solution pH and concentration of the microorganism. The critical pH for maximum recovery of hematite is around three, which corresponds to the
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reverse floatation was adopted in the beneficiation test on the regionally representative oolitic hematite ore of Longyan Iron Mine,Xuan Steel.The test results indicate that,with Slong pulsating high gradient magnetic separation as HIMS equipment,with ...
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Oolitic hematite is one of the most refractory iron ores with complicate mineral compositions and abundant reserves in China. The hematite and limonite in the ore integrate closely with fine particles of collophanite, quartz, chamosite, calcite and chalcedony to form concentric ring structure, making the separation of the minerals extremely difficult.
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Dissolution measurements, solution chemistry calculations, and flotation tests confirmed that both the cationsCa2 and Mg2 and CO32ions dissolved from dolomite depressed hematite flotation, whereas only the 23CO-ions dissolved from siderite
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2017-12-1Flotation tests conducted on the two Iron Duke samples using oleate showed that the presence of goethite adversely affected the flotation response of the hematite but contact angle measurements showed a higher hydrophobicity for the sample containing 25 goethite. Correcting the oleate addition for the changes in surface area still showed that the goethite reduced the flotability of the hematite.
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Abstract A highly selective collector SNSSodium Naphthene Sulfonate has been developed and flotation behaviours of fluorite and hematite of Baotou complex mine using SNS as collector have been studied.The separation mechanism of fluorite from hematite was ...
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2018-6-12Hematite ore slimes collected from an iron ore mine in Gansu province, China, assaying 43.73 Fe total and 24.11 SiO 2 respectively, were used for flotation tests. Its particle size is 96.70 -15 m, and the sample is not suitable for flotation. Pure hematite with an average granularity of
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The flotation of hematite and apatite using sodium oleate as collector and the collection mechanism were studied through flotation tests,solution chemistry calculations and infrared spectroscopic analysis.The results show that hematite possesses good floatability in ...
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Abstract The reverse flotation separation performance and mechanism of hematite and cellophane in the presence of RFP-138, a newly synthesized dephosphorization collector, were studied. Reverse flotation tests on monominerals and artificially mixed minerals of hematite and collophanite show that, this anionic collector performs excellently in reducing the phosphorus content in hematite.
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The flotation separation on chlorite and hematite with the new modified fatty acid collector CY-23 was studied. The investigation included both flotation and reagent adsorption tests. And all the characteristics of chlorite surface before and after the adsorption of new collector CY-23 have been studied with X-ray photoelectron spectroscopy XPS.
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Oolitic hematite and limonite in the ore integrate closely with fine particles of collophanite, quartz, chamosite, calcite and chalcedony to form concentric ring structure, making the separation of the minerals extremely difficult. The results indicated that the flotation separation efficiency with most cationic collectors such as dodecylamine, ether amine, GE601 or GE609 was not satisfactory.
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Oolitic hematite is one of the most refractory iron ores with complicate mineral compositions and abundant reserves in China. The hematite and limonite in the ore integrate closely with fine particles of collophanite, quartz, chamosite, calcite and chalcedony to form concentric ring structure, making the separation of the minerals extremely difficult.
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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 photoelectron spectroscopy XPS analyses.
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Abstract The reverse flotation separation performance and mechanism of hematite and cellophane in the presence of RFP-138, a newly synthesized dephosphorization collector, were studied. Reverse flotation tests on monominerals and artificially mixed minerals of hematite and collophanite show that, this anionic collector performs excellently in reducing the phosphorus content in hematite.
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2020-1-2Design and flotation performance of a novel hydroxy polyamine surfactant based on hematite reverse flotation desilication system Journal of Molecular Liquids IF 4.561 Pub Date 2020-01-02, DOI 10.1016j.molliq.2019.112428
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The effect mechanism of siderite on reverse flotation of hematite was studied by solution chemistry, ultraviolet spectrophotometry UV and Fourier transform infrared spectroscopy FTIR. It was observed that siderite had strong depressive effect on quartz in flotation using sodium oleate as collector, corn starch as depressant of iron minerals and calcium chloride as activator of quartz at ...
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Abstract The effect of dolomite with different particle size fractions on hematite flotation was studied using sodium oleate as collector at pH of about 9. The effect mechanism of dolomite on hematite flotation was investigated by means of solution chemistry, ultraviolet spectrophotometry UV, inductively coupled plasma atomic emission spectrometry ICP-AES and X-ray photoelectron ...
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2013-11-15Due to adsorption of F3 strain, Zeta potential of hematite surface is reduced, and hydrophobic is enhanced. The adsorption of F3 on hematite surface is dominantly chemical adsorption. Therefore, F3 strain can be used as bio-collector for hematite flotation.
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And in a wide range of pH,their flotation recoveries all exceed 90.And in the whole flotation experiment,the flotation recovery of hematite rises with the increase of collector concentration and pH,while the maximal recovery is not more than 55.Compared with
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Using pure quartz and hematite minerals, the adsorption mechanism of mixed cationicanionic reagent schemes was investigated through Hallimond flotation studies. The flotation response of quartz and hematite independently with cationic and anionic collectors as well as with mixed cationicanionic collector systems is assessed. The flotation response as a function of pH and collector ...
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Abstract The reverse flotation separation performance and mechanism of hematite and cellophane in the presence of RFP-138, a newly synthesized dephosphorization collector, were studied. Reverse flotation tests on monominerals and artificially mixed minerals of hematite and collophanite show that, this anionic collector performs excellently in reducing the phosphorus content in hematite.
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Abstract The effect of dolomite with different particle size fractions on hematite flotation was studied using sodium oleate as collector at pH of about 9. The effect mechanism of dolomite on hematite flotation was investigated by means of solution chemistry, ultraviolet spectrophotometry UV, inductively coupled plasma atomic emission spectrometry ICP-AES and X-ray photoelectron ...
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The flotation recoveries of quartz, calamine and calcite rise sharply with the rise of pH. And in a wide range of pH, their flotation recoveries all exceed 90. And in the whole flotation experiment, the flotation recovery of hematite rises with the increase of collector
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2019-3-1Flotation Results Frothing Properties 1.2 1.25 1.3 1.35 1.4 1.45 1.5 1.55 1.6 1.65 86 88 90 92 94 96 98 oluble, Weight Recovery, Reference Collector, 301515gt Armoflote 930, 402020gt 0 5 10 15 20 25 0 50 100 150 200 m Time, Seconds Reference Collector Armoflote 930 Air off Required grade and recovery in flotation obtained
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