Bioleaching of Sarcheshmeh molybdenite concentrate for extraction of rhenium

Zamani, Mahdi; Hiroyoshi, Naoki; Tsunekawa, Masami; Vaghar, R.; Oliazadeh, M.

doi:10.1016/j.hydromet.2005.06.016

Cited by 42 publications

(7 citation statements)

References 5 publications

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“…3, 4). Askari-Zamani et al (2005) evaluated rhenium bioleaching from molybdenite concentrate. Maximum rhenium extraction (7.3 %) was obtained with a native strain of Acidithiobacillus ferrooxidans isolated from the same mine where the concentrate was extracted.…”

Section: Resultsmentioning

confidence: 99%

EFFECT OF pH, MINING TAILINGS CONCENTRATION AND CULTURE MEDIUM ON THE PERFORMANCE OF POLYMETALLIC BIOLEACHING AT FLASK LEVEL

Zazueta-Álvarez

Medrano-Roldán

Reyes-Jáquez

et al. 2018

Rev. Int. Contam. Ambie.

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The aim of this research was to evaluate bioleaching of Mn, As, Pb and Zn from mining tailings using two different sets of variable processing conditions. In the first set pH (2.0, 4.0 and 6.0), tailings concentrations (10, 20 y 30 %, w/v [111.11, 250.00 and 428.57 g/L, respectively]), and two types of culture medium (9K [with nitrogen source] and nonN (nitrogen-free medium) were evaluated; in the second set the evaluation focused on continuous supplementation of biogenic H2SO4 oxidized with two types of culture medium (9K and nonN) at different tailings concentrations (10, 20 y 30 %, w/v [111.11, 250.00 and 428.57 g/L, respectively]), with continuous supplementation of the media previously described (9K and nonN) oxidized by the native strains Leptospirillum ferriphilum and Leptospirillum ferrooxidans. In the first set, the highest removal of Mn (93.49 %), As (13.92 %) and Pb (> 99 %) was observed in both media at 10 % of tailings and initial pH of 2.0. In the second experimental set, the highest removal of Mn (99 %), As (> 85 %), Pb (> 99 %) and Zn (67 %) was found with both media at 10 % of tailings and initial pH 6.0. Continuous supplementation of biologically acidified and oxidized culture media enhanced the metals removal from solid waste or tailings. Similar metals removal in media without nitrogen compared to medium with nitrogen was observed in this research.

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Section: Resultsmentioning

confidence: 99%

EFFECT OF pH, MINING TAILINGS CONCENTRATION AND CULTURE MEDIUM ON THE PERFORMANCE OF POLYMETALLIC BIOLEACHING AT FLASK LEVEL

Zazueta-Álvarez

Medrano-Roldán

Reyes-Jáquez

et al. 2018

Rev. Int. Contam. Ambie.

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“…Conventionally, MoS 2 concentrates are roasted between 500 and 700°C to obtain molybdenum trioxide (MoO 3 ), while volatile rhenium heptoxide (Re 2 O 7 ) is released with the flue gases. Re 2 O 7 is then scattered on the soil, where in the presence of water it is promptly transformed to perrhenate (ReO À 4 ), the most stable form of Re (Askari Zamani et al 2005;Tagami and Uchida 2010). Bioleaching of MoS 2 concentrates is, to a lesser extent, another pathway to the generation of ReO À 4 (Askari Zamani et al 2005).…”

Section: Introductionmentioning

confidence: 99%

“…Re 2 O 7 is then scattered on the soil, where in the presence of water it is promptly transformed to perrhenate (ReO À 4 ), the most stable form of Re (Askari Zamani et al 2005;Tagami and Uchida 2010). Bioleaching of MoS 2 concentrates is, to a lesser extent, another pathway to the generation of ReO À 4 (Askari Zamani et al 2005). Because of their great mobility and solubility, ReO À 4 ions can be broadly dispersed at significant concentrations in areas surrounding copper-molybdenum mines and copper processing factories (Askari Zamani et al 2005;Bozhkov et al 2007Bozhkov et al , 2012.…”

Section: Introductionmentioning

confidence: 99%

“…Bioleaching of MoS 2 concentrates is, to a lesser extent, another pathway to the generation of ReO À 4 (Askari Zamani et al 2005). Because of their great mobility and solubility, ReO À 4 ions can be broadly dispersed at significant concentrations in areas surrounding copper-molybdenum mines and copper processing factories (Askari Zamani et al 2005;Bozhkov et al 2007Bozhkov et al , 2012.…”

Section: Introductionmentioning

confidence: 99%

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Plants to harvest rhenium: scientific and economic viability

2015

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Rhenium (Re) is one of the rarest (7 9 10 -8 %) and most widely dispersed elements on Earth's upper crust. As a consequence of its scarcity, Re is also one of the most expensive metals in the world market. Re is indeed highly demanded by the aerospace industry for the production of high-temperature superalloy turbine blades. There is a lack of study on the viability of Re phytomining. The occurrence of Re in vegetation surrounding natural and anthropogenic sources of Re suggests the ability of plants for Re accumulation and biogeochemical indication. Here we studied the aptitude of Indian mustard and scouring rush to uptake Re, in order to test the feasibility of Re phytomining. An organic substrate was spiked with KReO 4 to attain Re concentrations of 5, 10, 20, 40, and 80 mg kg -1 . The plants were grown for 45 and 75 days under controlled greenhouse conditions. Plant tissue samples from roots and shoots were collected in septuplicate at both harvests and analysed by atomic emission spectroscopy. Our results show high concentrations of Re in plants, ranging from 1553 to 22,617 mg kg -1 at 45 days and from 1348 to 23,396 mg kg -1 at 75 days for Indian mustard range. A profit of 3906 US$ ha -1 harvest -1 is expected from the recovered Re. Our findings thus demonstrate for the first time the scientific and economic viability of Re phytomining.

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“…The solvent extraction method is most widely used for the separation of rhenium from other components, such as tungsten, arsenic, or molybdenum. , Especially for rhenium extraction, pyridine, bis-isododecylamine, tri- n -octylamine, Aliquat336, trioctylphosphine oxide, tributyl phosphate, cyklohexanon, mesityloxide, and ethyl xanthate are used. In industry, the most widely used system of extracting rhenium consists of a sulfuric acid medium.…”

Section: Introductionmentioning

confidence: 99%

Solvent Extraction of Perrhenate from Sulfuric Acid Medium by Triisooctylamine

Shan

Cheng

et al. 2015

J. Chem. Eng. Data

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In sulfuric acid medium, triisooctylamine was used as extractant to separate perrhenate from the aqueous phase. Molalites of perrhenate in the aqueous phase were measured from 278.15 K to 303.15 K at impurity ionic strength from 0.2 to 2.0 mol•kg −1 . Standard extraction equilibrium constants K 0 at different temperatures were calculated by polynomial approximation method. Some microcosmic property values in the process were investigated and obtained by Pitzer's theory, which indicated enthalpy and entropy were both dominant thermodynamic factors.

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Bioleaching of Sarcheshmeh molybdenite concentrate for extraction of rhenium

Cited by 42 publications

References 5 publications

EFFECT OF pH, MINING TAILINGS CONCENTRATION AND CULTURE MEDIUM ON THE PERFORMANCE OF POLYMETALLIC BIOLEACHING AT FLASK LEVEL

EFFECT OF pH, MINING TAILINGS CONCENTRATION AND CULTURE MEDIUM ON THE PERFORMANCE OF POLYMETALLIC BIOLEACHING AT FLASK LEVEL

Plants to harvest rhenium: scientific and economic viability

Solvent Extraction of Perrhenate from Sulfuric Acid Medium by Triisooctylamine

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