Avaliação De Diferentes Polissacarídeos Como Depressores Na Flotação Aniônica Direta De Minério Fosfático Ultrafino

Carneiro, Amanda Aparecida; Santos, Adriele Mércia Alves; Alves, João Victor da Silva; Oliveira, Michelly dos Santos; Guimarães, Mário

doi:10.35587/brj.ed.0001393

Cited by 2 publications

(6 citation statements)

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“…Chemical analysis of the feed and products was performed by X-ray fluorescence spectroscopy. The BEB 01 sample had an initial P2O5 content of 6.55%, a value consistent with complex phosphate ores, such as the one studied by Carneiro (2018), who worked with a silico-carbonated phosphate ore, with an initial content of 6.08%. The CaO/P2O5, Fe2O3/P2O5 and Al2O3/P2O5 ratios were 3.24; 1.44 and 0.27, respectively.…”

Section: Methodsmentioning

confidence: 63%

“…For flotation tests and reagent preparation, methodologies from previous work carried out by Santos (2017) and Carneiro (2018) were followed. The collector reagents selected were Andiroba oil (A1), an Amazonian oil, chosen based on the work of Paiva ( 2019) and, for comparison purposes, a conventional reagent was used, a partially hydrogenated soybean oil, known as Hydrocol.…”

Section: Reagent Preparationmentioning

confidence: 99%

“…The collector reagents selected were Andiroba oil (A1), an Amazonian oil, chosen based on the work of Paiva ( 2019) and, for comparison purposes, a conventional reagent was used, a partially hydrogenated soybean oil, known as Hydrocol. The selected depressant was residual potato starch, based on the results obtained by Carneiro (2018).…”

Section: Reagent Preparationmentioning

confidence: 99%

“…To work around this situation, reagents have been developed so that flotation presents selectivity. Studies such as those performed by Souza et al (2014), Oliveira (2007), Carneiro (2018), Carneiro et al (2021), Guimarães et al (2004), Martins et al (2019), Oliveira et al (2019), among many others presented in the literature, bring fundamental studies, in addition to analyzing the performance of collectors and depressants. They show this scientific initiative in the search for optimal conditions in phosphate ore flotation operations.…”

Section: Introductionmentioning

confidence: 99%

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Alternative Reagents in Phosphate Ore Flotation

Oliveira¹,

Santos²,

Souza³

et al. 2023

JER

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To meet the growing demand for fertilizers, strategic in food production, efficient ways of concentrating its main raw material, phosphate rock, are essential. Moreover, when the phosphate ore has carbonated gangue, such as the mineral deposit of Araxá-MG, there is a selectivity difficulty in separating the mineral species, impairing the flotation performance. The search for reagents that present selectivity, low cost and high availability has been the subject of research. Thus, the objective of this work was to evaluate a depressor reagent (starch residue) and collector reagents (Amazon oil from Andiroba and Hydrocol) in the flotation of phosphate ore. For this, the previously characterized ore was subjected to flotation tests in a bench mechanical cell. The independent variables evaluated were type of collector, collector dosage and depressant dosage, with two levels and central point, according to the factorial design. The results revealed that Hydrocol, at minimum dosage levels, provided concentrates with higher P2O5 content (17.78%) and metallurgical recovery (66.29%). However, the Amazonian oil, at maximum dosage levels, presented similar contents, but with lower recovery values, indicating that it is a selective reagent and showing promise, considering that the oil is a residue of industrial processes.

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Section: Methodsmentioning

confidence: 63%

Section: Reagent Preparationmentioning

confidence: 99%

Section: Reagent Preparationmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Alternative Reagents in Phosphate Ore Flotation

Oliveira¹,

Santos²,

Souza³

et al. 2023

JER

View full text Add to dashboard Cite

show abstract

“…For this reason, the aim of this study was to analyze and evaluate the residual potato starch (RPSP) in the phosphate ore flotation process from a mining company located the region of Minas Gerais state, as well as to compare its performance with that of waxy corn starch (CWCS), which is rich in amylopectin. Previous work by Carneiro et al, (2021) found that these two starch specimens performed well in flotation tests. In this regard, a study was Performance of residual potato starch as depressant in the direct anionic flotation of phosphate ore proposed using factorial planning to evaluate the effect of the variables (type of starch and dosages of depressant and collector) on the P2O5 content and metallurgical recovery in the anionic flotation of phosphate ore.…”

Section: Introductionmentioning

confidence: 64%

Performance of residual potato starch as depressant in the direct anionic flotation of phosphate ore

Carneiro,

Santos,

Alves

et al. 2024

R. G. Secr.

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The search for environmentally friendly reagents with high efficiency, high selectivity, and low cost has intensified in the mining sector in recent years. The use of depressants from alternative and renewable sources is an option to be considered. Thus, the purpose of this study was to evaluate the use of residual potato starch pulp (RPSP) generated by the food industry as a depressant in phosphate ore flotation by comparing its performance with that of commercial, waxy corn starch (CWCS), rich in amylopectin. To this end, eight flotation tests were performed in duplicate using the Denver mechanical cell. The results showed significant variations for flotation in the collector dosage and starch-type parameters. The increase from 150 to 350 g/t in the collector dosage promoted an approximately 18% increase in metallurgical recovery using 500 g/t of RPSP starch (an increase from 73.09% to 86.16%). The response optimization statistical tool showed that RPSP and collector dosages should be 500 and 226.77 g/t, respectively, to maximize the P2O5 content and metallurgical recovery. These results suggest that it is feasible to use RPSP in phosphate ore flotation, opening new fields of investigation regarding the use of more accessible and economical depressants.

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Avaliação De Diferentes Polissacarídeos Como Depressores Na Flotação Aniônica Direta De Minério Fosfático Ultrafino

Cited by 2 publications

References 0 publications

Alternative Reagents in Phosphate Ore Flotation

Alternative Reagents in Phosphate Ore Flotation

Performance of residual potato starch as depressant in the direct anionic flotation of phosphate ore

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