serpentine mineral separation

1 INTRODUCTION. Serpentine minerals and the serpentinization process have been receiving increased attention. In fact, hydration and dehydration of mantle ultramafics have important implications on (1) the water cycle in the deep crust and upper mantle, (2) the seismic response of subducting lithosphere and (3) the control of partial …

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The Serpentine-Group Minerals By GEORGE T. FAUST and JOSEPH J. FAHEY STUDIES OF THE NATURAL PHASES IN THE SYSTEM MgO-SiO2-H2 O AND THE SYSTEMS CONTAINING THE CONGENERS OF MAGNESIUM GEOLOGICAL SURVEY PROFESSIONAL PAPER 384-A Correlation of the physical and chemical properties in …

The fibrous serpentine is the vein like mineral between the orthopyroxene and olivine. The same thin section of serpentine under unpolorized light. Note the greenish, yellowish color of the serpentine mineral. Here the …

Serpentine is formed below 500 °C (930 °F) by the addition of water and sometimes silica to various magnesium silicates—e.g., forsterite or enstatite. It characteristically occurs along the crests and …

minerals Article The Critical Role of Pulp Density on Flotation Separation of Nickel-Copper Sulfide from Fine Serpentine Yawen Gao 1, Guofan Zhang 1,2,*, Mengtao Wang 1 and Dezhi Liu 1 1 Department of Mineral Engineering, School of Minerals Processing and Bioengineering, Central South University, Changsha 410083, China; …

According to Fig.1 and 2, serpentine has a great impact on the flotation of pyrite, and the more the amount of serpentine, the greater the impact is. When there is only 5% of additive serpentine in the mixed mineral of serpentine and pyrite, the productivity of the mixed mineral decreases from 86% to 32%.

The pentlandite, serpentine, and magnetite samples were obtained from Jinchuan, Xiuyan, and Nanfen in China, respectively. The detailed preparation methods and properties of each pure minerals were described in another literature [28].The composition results of pentlandite are shown in Fig. 1 and Table 1.The slightly low nickel assay of the …

Investigation of Action Mechanism between Sodium Hexametaphosphate and Serpentine. Xiao Qi-bin. Chemistry, Materials Science. 2002. The influence of sodium-hexametaphosphate on the surface property of serpentine is investigated by determination of infrared spectrum, dispersion degree,ζ potential and adsorptive capacity.

Zeta potential study of pentlandite in the presence of serpentine and dissolved mineral species. Minerals Engineering, Volume 85, 2016, pp. 66-71. ... Enhancement of pentlandite surface magnetism and implications for its separation from serpentine via magnetic separation. Transactions of Nonferrous Metals Society of …

Based on the results of the single mineral tests, the separation of artificially mixed minerals (15 g) was investigated at different NaOL concentrations with the addition of 60 mg L −1 NaHMP, 4% (0.6 g) magnetite, pH of 6.8–7.2, and stirring speed of 2100 r min −1.In addition, A magnetic field intensity of 200 kA m −1 was selected and the portion of …

The inadvertent dissolution of gangue minerals is frequently detrimental to the flotation of valuable minerals. We investigated the effect of conditioning time on the separation of brucite and serpentine by flotation. By analyzing the Mg2+ concentration, relative element content, and pulp viscosity, we studied the effect of mineral dissolution …

The magnetic separation of serpentinite mining residue was studied. • The non-magnetic fraction can be used for mineral carbonation. • The process removed about 71% of the iron impurities from the initial feed. • The optimum magnetic field is 7.5 × 10 3 T. • The concentration of iron oxide in the magnetic fraction is 79%.

Depression Mechanism of a Novel Depressant on Serpentine Surfaces and Its Application to the Selective Separation of Chalcopyrite from Serpentine. Mineral Processing and Extractive Metallurgy…. ABSTRACT Serpentine, a typically magnesium phyllosilicate gangue mineral, is often associated with chalcopyrite.

Hence, the mixed-mineral flotation tests were carried out to examine the possibility of using OHA as a collector in the flotation separation of the pyrrhotite-serpentine mixture. The results of the …

Serpentine, Mg 3 Si 2 O 5 (OH) 4, is a phyllosilicate mineral having several polymorphs, that is, antigorite, chrysotile, lizardite, and polygonal.Because the crystal structure is dependent on thermodynamic …

Flotation is a worldwide used minerals separation technic based on the differences in physical and chemical properties of mineral surfaces [6,7,8]. In flotation, particle interaction is a very complicated …

In other words, the main challenge issue in nickel ore dressing is to realize the separation of pentlandite and serpentine. The separation of pentlandite from serpentine is typically achieved by froth flotation, while reducing the content of MgO in nickel concentrates is a worldwide challenge in the mineral processing (Lu et al., 2019b).

Chlorite and serpentine are common magnesium-containing gangue minerals in copper sulfide flotation. In this study, sodium alginate, a natural hydrophilic polysaccharide, was introduced as a selective depressant for these gangue minerals. Micro-flotation tests were conducted on both single minerals and synthetic mixtures. …

Froth flotation based on selective separation of the Ni minerals from ores containing large amounts of fibrous serpentines (chrysotile) has been a long lasting challenge.

explained by the chemisorption of oleate on mineral surfaces that may become stronger for serpentine at higher collector concen trations (Sysila et al., 1996 ; Gallios et al., 2007). Fig. 9 .

Serpentinization of peridotite acts to generate clean energy in the form of hydrogen, and to separate metals into easily extractable iron in magnetite, and nickel …

Froth flotation based on selective separation of the Ni minerals from ores containing large amounts of fibrous serpentines (chrysotile) has been a long lasting challenge. One underlying reason has largely been considered to be slime-coating. ... Serpentine minerals have varying morphologies such as plate and fibrous type [7], [8], ...

Serpentine is a versatile mineral family rich in Mg silicate with several polymorphic phases, mainly antigorite and lizardite, all of …

Abundant resources of magnesium silicates make an interesting prospect for long-term storage of CO 2 by mineral carbonation. Several carbonation processes proposed in literature for CO 2 storage employ extraction of silicate minerals using a liquid solvent. In this study, the dissolution of natural serpentinite in respective solutions of …

The serpentine mineral chrysotile is common, found in many parts of the world, is easily mined, and can be processed to …

Serpentine was isolated from the same ultramafic ore sample by gravity and magnetic separation. Examination by X-ray diffraction (Phillips, the Netherlands, model P1770, with rotating Cu anode set at 40 kV and 20 mA; X'Pert Quantify and X'Pert High Score software were used for data acquisition and phase identification) showed …

As a result, the disaggregation as well as SIBX flotation separation of pyrite from serpentine was realized. This investigation also provided new insights into the aggregation and disaggregation between serpentine and …

Consequently, the serpentine minerals would be well dispersed and the separation of the value minerals such as pentlandite from serpentine is thus possible after adding SHMP. 4. Conclusion. In this study, the interaction mechanism of SHMP with the serpentine minerals was investigated in detail. SHMP adsorbed on the serpentine …

Hence, the mixed-mineral flotation tests were carried out to examine the possibility of using OHA as a collector in the flotation separation of the pyrrhotite-serpentine mixture. The results of the chemical analysis and the recovery of the flotation of pyrrhotite-serpentine mixture concentrates (OHA concentration: 4 × 10 −5 mol/L) at pH …