The key process for the separation of ilmenite from magnetite and associated silicate gangue minerals such as enstatite and anorthite was found to be pretreatment with sulphuric acid solution of pH 2 and the use of orthophosphoric acid as regulator.
Dec 24, 2019 When flotation completed, both floated and sunk fractions were dried in an oven at 60 C, and then weighed and chemically analyzed. As a result, suitable flotation conditions with BHA for ilmenite were determined as pH of 7.0, PbNO 3 of 200 gt, BHA of 1,300gt, frother of 60 gt and flotation time of 5 min.
Benzyl Arsonic Acid Ilmenite Flotation. Flotation of the ilmenite preconcentrate was conducted in a XFD163 cell with a capacity of 500 ml Sample size was 150 grams The flotation of the pure minerals was conducted in a XFGC80 cell with a cell volume of 100 ml In each test a two gram sample was used and the flotation time was two minutes.
en This patent describes a method for separating a mixture of minerals comprising at least zircon, ilmenite and rutile. It comprises adding an acid solution to the mixture to acidify to a pH of between about 2.0 and 6.0 adding starch to the mixture to depress the ilmenite and the rutile adding a source of fluoride ions to the mixture to provide a negative surface charge on the zircon ...
Flotation agents from the POLY SEPAR CFM-range are mixtures of various organic coagulants, polymer flocculants and aluminium salts with high basicity. They are used in wastewater treatment. Application areas for flotation agents. These flotation agents are especially used for
Sep 01, 1991 25.4 Flotation Properties of Major Titanium Minerals 25.4.1 Flotation properties of ilmenite 25.4.2 Flotation properties of rutile 25.4.3 Flotation properties of perovskite 25.5 Practices in Beneficiation of Titanium Ores 25.5.1 Practices in beneficiation of ilmenite ores using flotation
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A process as claimed in claim 1, wherein calcium chloride is included as a modifying agent in the flotation treatment in promoting the pyrochlore. 4. A process as claimed in claim 1, wherein the gangue materials include heavy minerals from the group comprising ilmenite, hematite and magnetite and at least one depressant from the group ...
sulphate ilmenite to 95 per cent for natural rutile. Feedstocks are either sold as raw minerals rutile and chloride or sulphate ilmenite or as upgraded feedstocks. Upgrading involves chloride or sulphate ilmenite being heated in a kiln or furnace to remove impurities mostly iron and increase the TiO 2
Jul 02, 2017 The purpose of the flotation tests was to determine whether rutile recovery is more feasible from ground tailings samples or from as-received samples. Ground Tailings . 250-Gram-Batch Tests. A 250-gram-batch flotation cell was used for the preliminary flotation tests. To prepare a sample for flotation, the material was screened on a 200-mesh sieve.
The basic properties of ilmenite and its metallogenic mechanism codetermine the final choice for ilmenite-containing ores beneficiation. Flotation has been an indispensable step for ilmenite upgrading as time goes and many collector types that can float ilmenite in
Oct 08, 2019 The causes of an increased collecting ability of a flotation agent with polar groups in the hydrocarbon fragment are disclosed based on the mechanism of physically adsorbed collectors and kinetics of formation of flotation aggregate. The kinetic approach to description of flotation event demonstrates functionality of electronegative oxygen and ...
After surface dissolution, the best concentrate containing 25.6 TiO2 and 80.6 recovery is obtained in the presence of 1000 gt collector and 100 gt activator without any depressant agent. As a general result, the acid surface dissolution pretreatment enhances the selectivity of ilmenite flotation and its separation efficiency.
II. Method for studying, equipment and agents. 1. Study method Based on the difference in relative floatability of several silicate minerals such as zircon silicate or ilmenite etc. as well as flotation agents, we have conducted a study on flotation in the laboratory. 2. Equipment. Mexanov flotation machine with capacity of 8 liters was used.
May 01, 1986 Process., 17 131--142. An attempt has been made in this investigation to enrich massive ilmenite ore of Sambalpur by froth flotation. Two approaches were made to this end. In the first, which was carried out in an alkaline medium, the gangue minerals were removed from the float and the ilmenite concentrate was collected as sediment.
ilmenite flotation system, in the hope of addressing the above-mentioned defects arising to some extent from fatty acid-based collectors. Its associated mechanisms were investigated by micro-flotation experiments, particle size analysis, Fourier-transform infrared FT-IR spectroscopy analysis and X-ray photoelectron spectroscopy XPS analyses. 2.
The surface dissolution pretreatment using oxalic acid as an organic agent was applied for modifying the surface properties of minerals and improving the selectivity of ilmenite flotation from its usual accompanied gangue minerals such as olivine, pyroxene, tremolite and clinochlore. The effect of ...
Aug 22, 2019 minerals Article Analysis of the Application Potential of Co ee Oil as an Ilmenite Flotation Collector Sen Wang 1, Wei Xiao 1, , Xiao Ma 2, Jiuzhou Li 2, Lijuan Chen 2 and Hui Yao 2 1 School of Resources Engineering, Xian University of Architecture and Technology, Xian 710055, China 2 Jinduicheng Molybdenum Co Ltd., Xian 710077, China Correspondence xiaowei2015csu.edu.cn
ilmenite by combina tion agents, for examp le, a combination o f arsenic, lauric acid and sodium do decyl benzene sulfonate in a certain ratio can significantly increase the ilmenite flotation ...
Mar 05, 2021 Pb 2, as an activator of ilmenite flotation, has been widely discussed and researched, but few reports exist about the activation of ilmenite by using Fe 3.In this research, the effect of FeBHA complexes ferric chloride and benzohydroxamic acid on the flotation of ilmenite was studied. The flotation results showed that the recovery of ilmenite in the presence of FeBHA complex was
Aug 15, 2020 The micro-flotation experiments were conducted as a function of pH in the presence of NaOL dosage of 2.0 10 4 molL and the results are shown in Fig. 2.As seen from Fig. 2, pH played an essential role in the flotation of microfine particle ilmenite.Ilmenite exerted a relatively desirable floatability at the pH ranges of 46 and 911.
Aug 08, 1991 A three stage locked cycle flotation scheme was used having a zircon rougher flotation at low pH, a zircon cleaner flotation at low pH and a quartz flotation from the rougher sink product at high pH. About 500 grams of a composition having zircon 31.7, other silicates 11.1, rutile 33.9, ilmenite 21.1, and miscellaneous unidentified minerals ...
