Recovery of apatite from flotation tailings

Oliveira, M.S.; Santana, R. M.; Ataíde, Carlos Henrique; Barrozo, M. A. S.

doi:10.1016/j.seppur.2011.03.015

Cited by 63 publications

(24 citation statements)

References 17 publications

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“…Kalkan, 2006;Poulin, et al, 2008;Wang, et al, 2008a) ). (Oliveira, et al, 2011;Abdel-Aal, 2000;Xu, et al, 2012;Zhang and Stana, 2012) Copper Quartz, K-feldspars, biotite, chlorite, mica, muscovite, gypsum, and dolomite, with residual amounts of copper and other metals. pH 9.2-10.2 for alkaline flotation of sulfide ores; neutral pH reported for porphyry deposit tailings; limited water salinity data.…”

Section: Size Classificationmentioning

confidence: 99%

Current state of fine mineral tailings treatment: A critical review on theory and practice

Wang

Harbottle

Liu

et al. 2014

Minerals Engineering

344

169

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Highlights Presented facts on escalating generation of fine mineral tailings worldwide.  Overview of coal, alumina, oil sands, and base metals tailings characteristics.  Reviewed theoretical and industrial developments for tailings management.  Determined numerous knowledge gaps between current theories and practices.  Identified opportunities for improvement towards more sustainable practices. Graphical AbstractEvolution of fine mineral tailings treatment objectives.Figures "Flocculated solids" and "Stackable solids" are adopted from Alamgir, et al. (2012), permission pending. The last figure "Reclaimed land" is adopted from Golder Associates (2009), permission pending. AbstractThe mining industry produces fluid fine mineral tailings on the order of millions of tonnes each year, with billions of tonnes already stored globally. This trend is expected to escalate as demand for mineral products continues to grow with increasingly lower grade ores being more commonly exploited by hydrometallurgy. Ubiquitous presence and enrichment of fine solids such as silt and clays in fluid fine mineral tailings prevent efficient solid-liquid separation and timely re-use of valuable process water. Long-term storage of such fluid waste materials not only incurs a huge operating cost, but also creates substantial environmental liabilities of tailings ponds for mining operators. This review broadly examines current theoretical understandings and prevalent industrial practices on treating fine mineral tailings for greater water recovery and reduced environmental footprint of mining operations.

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Section: Size Classificationmentioning

confidence: 99%

Current state of fine mineral tailings treatment: A critical review on theory and practice

Wang

Harbottle

Liu

et al. 2014

Minerals Engineering

344

169

View full text Add to dashboard Cite

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“…A polpa foi condicionada com 50% de sólidos e flotada com 25%. A preparação das soluções de coletor e depressor foi baseada no procedimento adotado no estudo de Oliveira et al [8].…”

Section: Condicionamento Da Polpaunclassified

“…O processo de flotação em coluna conta com diversas variáveis, assim a análise e planejamento dos experimentos é mais confiável utilizando técnicas estatísticas para esse fim, Oliveira et al [8]. O método do planejamento fatorial de experimentos foi empregado no planejamento dos ensaios.…”

Section: Planejamento Experimentalunclassified

Ensaios Exploratórios Em Coluna De Flotação De Bancada Com Minério Fosfático Ultrafino

Alves¹,

Silva²,

Oliveira³

et al. 2017

TMM

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ResumoColunas de flotação de bancada estimam a realidade industrial, gerando resultados com elevado grau de consistência e reprodutibilidade. Diante disso, este trabalho teve como objetivo realizar ensaios exploratórios em uma coluna de flotação de bancada, utilizando minério fosfático ultrafino. Testes preliminares, em célula mecânica, foram executados para determinar o tempo de condicionamento e a dosagem dos reagentes. A condição mais adequada foi 500g/t de amido de milho gelatinizado e 250g/t de Flotigam 5806, condicionados por 5 minutos e 1 minuto, respectivamente. A eficiência da coluna de flotação foi confirmada com base em teores de P 2 O 5 , tomando como referência parâmetros industriais de flotação desse tipo de minério. Analisou-se as variáveis granulometria e vazões de reciclo, de água de lavagem e de ar. O melhor resultado obtido foi vazões de ar, reciclo e água de lavagem de 1,2 L/min, 0,95 L/min e 0,1 L/min, respectivamente, correspondendo a um teor de P 2 O 5 de 36,91% no concentrado e 3,53% no rejeito, com recuperação metalúrgica de 74,36%. Palavras-chave: Flotação; Coluna; Fosfato. EXPLORATORY TESTS BENCH FLOTATION COLUMN WITH ULTRAFINE PHOSPHATIC ORE AbstractBench columns flotation simulate industrial reality generating results with high reproducibility and consistency. Thus, this study aimed to perform exploratory tests in a bench column flotation using ultrafine phosphatic ore. Preliminary tests were performed in mechanical cells in order to define the conditioning time and reagents dosage. The most appropriate situation was 500 g/t of gelatinized corn starch and 250 g/t of Flotigam 5806, conditioned for 5 minutes and 1 minute, respectively. The efficiency of the column flotation was established based on P 2 O 5 based in industrial flotation parameters for this type of ore. It was analyzed the particle size and flow recycle of wash water and air. The best result was obtained for air, recycle and wash water flow rates of 1.2 L/min, 0.95 L/min and 0.1 L/min, respectively. Representing a content of 36.91% P 2 O 5 in the concentrate, and 3.53% in the waste with metallurgical recovery of 74.36%.

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“…There is, however, substantial scope for producing phosphate from current tailings (production residues) at mines and increasing P efficiency of beneficiation (Abdel-Aal, 2000; Sis and Chander, 2003;Abouzeid, 2008;Nanthakumar et al, 2009;Khoshjavan and Rezai, 2011;Mohammadkhani et al, 2011;Oliveira et al, 2011;Teague and Lollback, 2012;Al-Thyabat and Al Zoubi, 2012;Zhang and El-Shall, 2012;Bai et al, 2013), though it should be noted that improvements shown in laboratory settings may fail when implemented in commercial settings (Abouzeid, 2008). Particle size control in grinding operations may be conducive to improved P recovery from mined phosphate rock (Remes et al, 2010).…”

Section: Improving P Efficiency In Mining and Beneficiationmentioning

confidence: 99%