Olivine Flotation Concentrate

Olivine concentrate obeying the specifications of metallurgical applications could be obtained at suitable MIBC dosage and flotation time. Keywords: Entrainment, Lizardite, LOI, MIBC, …

by the flotation of chromite at pH 3 with the same amine collector. In a typical procedure, 270 gltof amine is fed into the flotation medium in the serpentine flotation step, while 270gltof amine …

Background: Olivine is an important industrial raw material especially for metallurgical applications like foundry sand, refractory, slag conditioning, etc. Loss On Ignition (LOI) value (>1%) is the main specification of olivine ore/concentrate for those areas together with the chemical specifications.

The flotation concentrate and tailing were filtered, dried and weighed, and analyzed by XRF. ... The higher flotation recovery of olivine–pyroxene and tremolite–clinochlore in alkaline solution can be attributed to magnesium and calcium ions as surface active sites to the formation of oleate compounds [6], [37].

flotation system of olivine type ilmenite in Panxi area. The basic theoretical system of flotation separation technology for olivine pyroxene type ilmenite was formed by studying the surface properties of minerals and the interaction between flotation …

Flotation equipments will also play critical role in improving the recovery of fine-grained ilmenite resources in future especially for the flotation column, which has proven to be successful for other fine mineral flotation but little has been applied in fine ilmenite flotation at present (Honaker and Mohanty, 1996, Praes et al., 2013, Sastri ...

Production of trona concentrates using high-intensity dry magnetic separation followed by flotation . × ... separation is traditionally employed depending on the liberation particle size in order to obtain a saleable chromite concentrate with at least Cr2O3 content of 44% and Cr/Fe ratio of 2.20. Chromite occurs generally with olivine and ...

A higher olivine content should improve pentlandite recovery during froth flotation because it is negatively charged like pentlandite at the industrial flotation pH of 10. A subsequent study showed that microwave pretreatment of ultramafic Ni ores decreased the shear viscosity (by an average of 80 % at 200/s) and direct yield stress of ore ...

Gravity, magnetic and flotation methods are generally used to concentrate for low-grade chromite minerals from gangue minerals such as olivine and serpentine. It is very important to know the ...

However, little is known about the depression mechanism of Al ions and sodium silicate in olivine minerals. In this work, the effects of Al–Na 2 SiO 3 on the depression of olivine were studied for the first time. Systematic flotation tests, zeta potential measurements, Fourier-transform infrared (FTIR) spectroscopy, and microcalorimetry analyses were carried out to …

In the case of olivine and pyroxene with 30.1% Fe, the recovery of TiO 2 increases from 66.9% to 69.1%. In the flotation of the ore sample containing 24.5% Fe, the microwave irradiation improves the recovery of TiO 2 in the ilmenite concentrate from 65.4% to 76.2%. In a general result, in the flotation of ilmenite from different gangue minerals ...

Geometallurgical testing that is performed to predict flotation performance achievable by an ore type in an existing flotation circuit or proposed flotation circuit design often involves small-scale batch laboratory flotation testing. These tests can range in complexity: • A single-stage batch flotation test, which can be used to

The influence of acid surface dissolution as a pretreatment method on the improvement of ilmenite selective flotation from olivine-pyroxene was studied by carrying out the flotation experiments in ...

In contrast, oxidation did not measurably affect olivine flotation. This suggested that controlled oxidation may improve selectivity in the flotation of chromite from olivine. This concept was tested using a chromite gravity concentrate. Both flotation recovery and Cr2O3 grade increased slightly following oxidation of the concentrate.

Olivine concentrate obeying the specifications of metallurgical applications could be obtained at suitable MIBC dosage and flotation time.

pyroxenes, amphiboles, olivine, garnet, zircon, micas and clay minerals). They are very important ... Desliming Barite Flotation Final Apatite Concentrate ROM Slimes Floated product Sunk product

the chromite concentrate of the rougher amine flotation, and the R 2 values between the experimental and p redicted values of the re covery and g rade of the chromite con centrate were 0.772 and 0 ...

Results Finely ground soft lizardite adversely affected the olivine flotation in a way of entraining mechanically into concentrate. LOI value of concentrate was observed mainly to …

The selective flotation of ilmenite from olivine can be better achieved using an AWG as depressant rather than WG in the artificially mixed minerals flotation experiments.

Key takeaway: 'Optimal MIBC dosage and flotation time can produce metallurgical-grade olivine concentrate, with lizardite recovery mainly based on mechanical entrainment.'

Also present were traces of olivine, magnetite, pyroxene, and ankerite. An examination of the screened fractions indicated that locking of the chromite is present in all fractions, including the minus 400-mesh. ... per ton of ore during rougher flotation. The concentrate contained 90.6 percent of the chromium at a grade of 36.0 percent Cr2O3 ...

a selective froth flotation process for the treatment of chromite ores having low grade chrome spinels, Zircon, staurolite, ilmenite, magnetite, garnet, quartz, epidote, olivine and alteration products as inclusions which comprises subjecting a pulp of such an ore to an initial blunging treatment in the presence of a soluble fluosilicate-forming substance, partially neutralizng the …

The influence of acid surface dissolution as a pretreatment method on the improvement of ilmenite selective flotation from olivine-pyroxene was studied by carrying out the flotation experiments in micro and laboratory (flotation cell) scales. The microflotation experiments show that after surface dissolution, the flotation recovery of ilmenite improves from 73.5% to 92.1% …

ilmenite selective flotation from olivine-pyroxene was studied by carrying out the flotation experiments in micro and laboratory (flotation cell) scales. The microflotation experiments show that after surface dissolution, the flotation recovery of ilmenite improves from 73.5% to 92.1% at ... an optimal concentrate with 21.2% TiO 2 and 78.3% ...

Petrographic examination of the pH 2.0 flotation products showed olivine to be present in the concentrate while serpentine remained in the tailings. Effect of Oxidation on the Flotation of …

Sodium citrate was introduced as a depressant for ilmenite flotation, and its effect on the activation of ilmenite and depressing titanaugite was investigated. The flotation results showed that ilmenite was effectively separated from titanaugite as a concentrate with a TiO 2 grade of 43.62% and recovery of 87.42%. The contact angle analysis ...

In this study, a ternary collector consisting of aluminum ion (III), benzohydroxamic acid (BHA), and sodium oleate (NaOL) was prepared for the flotation separation of ilmenite …

An effective flotation process was proposed for selective recovery of elemental sulfur from an oxygen pressure acid leaching residue of zinc sulfide concentrate. The optimal closed flotation process is: one-time blank rougher, two-time agent-added roughers, and two-time cleaners, and the selected collector and inhibitor were Z-200 and Na 2 SO 3 ...

The presence of magnesium silicate gangues in the concentrate adversely impacted the thermal extraction of nickel. ... The high magnesium silicate content obstructs pentlandite flotation due to the fibrous nature of this ... [11,12,13] fiber disintegration by acid attack, or microwave pre-heating to transform serpentine into olivine [6,7,9] ...

Background: Olivine is an important industrial raw material especially for metallurgical applications like foundry sand, refractory, slag conditioning, etc. Loss On Ignition (LOI) value (1%) is the main specification of olivine …