Sulfur Flotation Concentrate

Experimental Study on Flotation Desulfurization of High …

Abstract: Flotation desulfurization of high-sulfur bauxite in certain area was studied in this paper to develop a new xanthate with good collecting capacity and selectivity. In this study, concentrate with yield of 87.57% and sulfur content of 0.29% was obtained, tailings with yield of 12.43% and sulfur content of 19.86% was obtained.

Prediction of Sulfur Removal from Iron …

The dataset of the flotation tailing froth features is applied to train the network for predicting the amount of sulfur removal from iron ore concentrate in the column flotation process. In this study, 74 of 99 …

Biological removal of sulfur from coal flotation concentrate …

Total sulfur and ash content was reduced by bioleaching from 13.55 and 1.35 in flotation concentrate to 9.47 and 0.55 in the final leached concentrate, a reduction of 35 and 61.9 % respectively.

Moving Horizon Estimation of Sulfur Concentrate Grade …

This article proposed a moving horizon approach to predict sulfur concentrate grade in a sulfur flotation process. In this approach, the grade prediction problem is formulated as a moving horizon estimation problem. To build the nominal model for the estimation, the kinetic of sulfur flotation process are firstly studied. The unknown variable in the kinetic …

Selective Flotation of Elemental Sulfur from Pressure Acid

An efficient flotation process was developed to selectively recover elemental sulfur from a high-sulfur pressure acid leaching residue of zinc sulfide concentrate. The process mineralogy analysis showed that the sulfur content reached 46.21%, and 81.97% of the …

Western Exploration Reports Positive Gravel Creek …

The flotation concentrate was 10.74% of the whole feed weight, assayed 44.3 g/t Au, 1,665 g/t Ag and 21.9% sulphide sulphur and represented gold and silver recoveries of 72.4% and 85.4% ...

Comprehensive Recovery of Oxygen Pressure Acid Leaching …

The flow sheet of effect of Z-200 dosage on the sulfur grade and recovery of flotation concentrate is indicated in Fig. 3, and the flotation result is shown in Table 3. When the dosage of Z-200 was 20 g/t, the sulfur grade and recovery of the concentrate were relatively high, which were 71.35% and 93.49%, respectively.

1Characterization and Flotation of Sulfur-revised

Vo1. 2, Characterization and Flotation of Sulfur from Chalcopyrite Concentrate Leaching 7 A sodium silicate dosage of 50 g/t increases the sulfur grade of the concentrate to 89% with a ...

How Antimony is Processed by Flotation

The problem discussed in this antimony process study is limited to a concentrator capable of beneficiating 150 tons per day of antimony ore.The antimony in this study occurs as the mineral stibnite (Sb2S3) in association with small amounts of pyrite, arsenopyrite, galena and lead sulfantimonides. The gangue is composed largely of …

Microwave roasting of flash flotation concentrate …

3.3. Conventional roasting of flotation concentrate. Roasting in the auriferous industry involves the heating of complex or refractory gold concentrates containing sulphides (mainly pyrite and arsenopyrite) and carbonaceous materials in air to produce volatile arsenic xide (As 2 O 3), sulphur dioxide (SO 2) and carbon dioxide …

Experimental Study on Activated Sulfur Selection from …

sulfuric acid is 400g/t, the recovery rate of sulfur in the flotation obtained crude concentrate reaches 73.63%. At this time, the yield of crude concentrate is 17.83%, and the sulfur grade is 19.08%; Continuing to increase the dosage of concentrated sulfuric acid has no significant effect on the improvement of sulfur flotation recovery rate.

Flotation Decarbonization and Desulfurization of a High-Sulfur …

A high sulfur content is one of the challenges in the processing of refractory bauxites in China. The high carbon content of bauxite makes it more difficult to deal with. Desulfurization and decarbonization are the critical issues in the efficient exploitation of high-sulfur bauxite resources. An experimental study on the removal of sulfur and …

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The flotation concentrate was 10.74% of the whole feed weight, assayed 44.3 g/t Au, 1,665 g/t Ag and 21.9% sulphide sulphur and represented gold and silver recoveries of 72.4% and 85.4% ...

Sulfur content reduction of iron concentrate by reverse flotation

According to the data obtained from batch flotation tests, the maximum recovery of total sulfur was achieved when the operational parameters were set to the PAX dosage 200 gr/t, MIBC dosage 150 gr/t, CuSo 4 75 gr/t, impeller speed 1500 rpm, pH 7.5, flotation time 7 min and pulp density 30%. With these optimum parameters, final …

Sulfur content reduction of iron concentrate by reverse flotation

Reverse flotation located at the end of the primary treatment circuit (high and low intensity magnetic separation) will lower a large amount of the sulphur from magnetic separator concentrate.

Data‐Driven Approximated Optimal Control of Sulfur …

The physical activities in a sulfur flotation cell involve the movement of solid particles driven by the flow of air and liquid. As illustrated in Figures 2 and 3 [], …

1 Froth Flotation – Fundamental Principles

Froth flotation is a highly versatile method for physically separating particles based on differences in the ability of air bubbles to selectively adhere to specific mineral surfaces …

CN103170410B

Disclosed is a flotation method for reducing sulfur in bauxite concentrate. The method includes the following steps: grinding raw material ore with 40%-70% of Al2o3 grade and 2%-24% of sulfur grade to mineral monomer, and then separating the mineral monomer; adding sulphide ore activator oxalate ethylamine; activating flotation of sulphide ore …

Comprehensive Recovery of Elemental Sulfur and Sulfide

Hot Filtration of Flotation Concentrate. The result of sulfur phase analysis for the concentrate is displayed in Table 6. 81.16% of the sulfur in the concentrate existed as elemental sulfur, i.e., the purity of elemental sulfur concentrate product achieved 81.16%. However, the sulfide content also arrived at 6.37%, which decreased …

Characterization and Flotation of Sulfur from Chalcopyrite Concentrate …

Elemental sulfur produced by chloride leaching of sulfide ores or concentrates contains selenium and tellurium usually too high to be used in various industrial or agricultural uses. The sulfur in the leaching residue can be upgraded to 90% in grade by froth flotation and the sulfur concentration can be followed by sulfur purification and selenium and …

Recovering Cobalt and Sulfur in Low Grade Cobalt-Bearing …

The results showed that an optimized cobalt–sulfur concentrate with a cobalt grade of 2.08%, sulfur content of 36.12%, sulfur recovery of 85.79%, and cobalt recovery and 84.77% were obtained by flotation process of one roughing, three sweeping, and three cleaning under roughing conditions, which employed pulp pH of 8, grinding …

Optimal control of sulphur flotation process based on …

INTRODUCTION Sulphur flotation is usually integrated into a hydrometal- lurgical process to recover the valuable sulfur from leaching residues of sulfide minerals (Wang et al. (2018)). The operational target of the sulphur flotation is to increase the sulphur concentrate grade while decrease the sulphur tailing grade (Shean and …

Assessment of the effect of iron magnetic concentrate …

Pyrite flotation reduced the concentrate sulfur content from 1.12% to 0.33%. On the other hand, the desulfurization results showed an increase in d 80 and a substantial decrease in Blaine's number of the flotation concentrate. Flotation of talc, along with the entrainment flotation of magnetite and pyrite fine particles, is the main …

Flotation of an Arsenic Bearing High Sulfur Gold Mine in …

This is an article in the field of mineral processing engineering. The gold mineral in an arsenic bearing high sulfur gold mine has a close symbiotic relationship with pyrite and arsenopyrite, and the recovery rate of concentrate gold is not ideal in the actual production process. In order to improve the recovery rate of concentrate gold and take into …

Investigation of Flotation Separation of Elemental Sulfur …

In the granulation process of the flotation concentrate is a division of lead sulfate and elemental sulfur, the sulfate lead content in sulphur-sulfide phase is decreased from 28.44 % to 3.5 % ...

The sulfur grade of the tailings can be reduced to 3.55% accordingly. For further optimization of the flotation process and parameters, process mineralogy analyses are conducted on the sulfur flotation concentrate and the medium mineral products, and their mineral composition, symbiosis relationship and element content are investigated.

Bulk Flotation

Bulk flotation is a process where two or more valuable minerals with similar floatability are floated together as a bulk concentrate in the flotation system. The bulk flotation includes partial bulk flotation and full bulk flotation. The bulk concentrate can be separated by flotation or other methods to obtain a single concentrate as needed.

Separation of elemental sulfur from hydrometallurgical …

Dried sulfur concentrate (~ 15% moisture) is fed continuously to a melting cone which is also fed by recycled molten sulfur from the dirty sulfur pit into which the …

Clean desulfurization of sulfur–rich tungsten

Reverse flotation demonstrates a feasible and terse method for desulfurization as an efficient technique to remove sulfur and improve the quality of tungsten concentrate simultaneously. In comparison with the universal desulfurization approaches, reverse flotation is a promising candidate for desulfurization from …

Comprehensive Recovery of Elemental Sulfur and Sulfide

Hot Filtration of Flotation Concentrate. The result of sulfur phase analysis for the concentrate is displayed in Table 6. 81.16% of the sulfur in the concentrate …