1. Introduction. The behaviour of rhenium (Re) in seawater is defined by the low reactivity of the perrhenate ion (ReO 4 −; Re(VII)), which is the only significant Re species found in ocean waters [].The concentration of Re in the open ocean (0.0074–0.009 ng g −1; [2,3]) is a factor of three higher than average river water (approx. 0.005 pg g …
Rhenium (Re) is one of the scarcest and more broadly dispersed elements on Earth. Due to its paucity and high demand by the aerospace and petroleum industries, it is also one of the most valuable ...
The advantages of the phytomining method of Re recovery from soils proposed by us were illustrated by comparison with the classical methods for Re recovery. Key Words: Rhenium, Phytomining, Clover, Lucerne, Environmental friendliness 1 Introduction Rhenium is a rare metal (its occurrence in Earth's crust amounts to 7x10-8 %). with unique ...
Following different accounts of rhenium accumulation, both on field [100,101] and laboratory trials [102], two rhenium phytomining experiments were carried out to date [14, 103]. The first ...
Rhenium. Rhenium (element #75, symbol Re) is a rare, silvery-white metallic element. Rhenium is found as a trace element in platinum ores and in the mineral columbite. It is very dense and has a melting temperature of 3186 degrees C (5767 degrees F).
Phytomining is a technology that uses hyperaccumulator plants to extract metals from contaminated soil. It is environment-friendly, profitable, and can restore …
After concluding his doctoral studies, he spent one year at the Federal University of Rio de Janeiro (Brazil), carrying out postdoctoral research on phytomining. Then, he undertook a 3-year postdoctoral fellowship at the University of Aveiro also focused on phytomining and phytoremediation, until obtaining a permanent position in 2019.
Phytomining is an inexpensive and environmentally friendly method for extracting rhenium and remediating exhausted soils near copper mines and ore-dressing regions. The scattered rhenium in the environment around copper and molybdenum mines and copper processing factories is a potential source for rhenium production.
Role of bacteria and mycorrhizal fungi in phytomining: status and future perspectives. Microbe Mediated Remediation of Environmental Contaminants 2021 ... On the uptake of rhenium by plants: Accumulation and recovery from plant tissue. Journal of …
In recent years, reports about the occurrence of Re in soils surrounding copper-molybdenum mines and its uptake by the local vegetation have fueled research …
Yeast Saccharomyces cerevisiae biomass was applied for rhenium and accompanying elements (copper and molybdenum) removal from single- and multi-component systems (Re, Re-Mo, Re-Cu, and Re-Mo-Cu). Yeast biomass was characterized using X-ray diffraction, scanning electron microscopy, and Fourier transform infrared …
Phytomining is a technique that extracts valuable metals (such as nickel, gold, and rare earth elements) with hyperaccumulators or crops from lean ore or metal …
This chapter reviews the advances of phytomining since its inception in the 1990s, focusing on the results obtained to date, with gold, nickel, thallium, and rhenium. Idioma original English
The idea of phytomining was first put forth in 1983 by an agronomist at the U.S. Department of Agriculture named Rufus L. Chaney. Other research groups before the Malaysia team have shown that the ...
The extraction of critical metals in a circular mining system begins with mineral processing (Fig. 2).Mineral processing involves liberating and concentrating economical metals and minerals from a mined resource using comminution (particle size reduction), classification (particle size screening), and separation technologies (e.g., …
Phytomining (PM) is defined as the process of using plants capable of bio-extracting metals from soil in order to explore them economically. This relatively new, innovative method has been gathering significant attention in both the academic and commercial domains. Conventional mining methods are often economically unviable …
Rhenium is one of the scarcest (7 × 10 −8 %) and most broadly dispersed elements on Earth's upper crust. Because of its rarity and distinguishing …
rhenium occurs in amounts up to 0.2% in the mineral molybdenite, rhenium's major commercial source (Note 2). As rhenium is rare and expensive, there is interest in rhenium phytomining (Note 4).
In your classroom. Inspire learners to imagine innovative chemistry careers with this two-fold problem that future chemists need to solve. The technological revolution relies on metals that are becoming increasingly more uneconomical to mine due to declining concentrations and the spoil from such operations has left a legacy of contamination.
Two ways of rhenium extraction and preconcentration from green leaves of geranium were studied: i) direct incineration of the raw leaves and alkaline leaching of …
As rhenium is rare and expensive, there is interest in rh enium phytomining (Note 4). Dietary rhenium Alfalfa, in the capacity of rhenium hyperac cumulator plant (Note 4), was grown on exhausted ...
Rhenium (Re) is one of the rarest (7 × 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. …
36 instrumental to increase the economic and environmental viability of Re phytomining. 37 38 Keywords: phytomining; agromining; phytoextraction; hyperaccumulation; phytoremediation 39 Introduction40 41 Rhenium (Re) is one of the rarest (7 x 10-8 %) and most broadl scaWWered elemens on Earhs 42 crust (Naumov, 2007; Tagami and …
Rhenium is extracted from roasting fume and dust, leaching residue, and aqueous solution to produce a rhenium bearing solution. Subsequently, rhenium rich …
Phytomining. Phytomining (or agromining) involves cultivating selected plants known as hyperaccumulators on metal-rich soils to extract high value metals for profit (Corzo Remigio et al., 2020, Nkrumah et al., 2018b, van der Ent et al., 2021).
In the present work, we aimed to focus on the identification and characterization of the heavy metal-tolerant plant species growing spontaneously at the tailings site of the Sarcheshmeh copper mine, south of Iran. Our aim was to find the plant species that were potentially useful for phytoextraction purposes. The concentrations of As, Cu, Mo, Ni, …
Key Words: Rhenium, Phytomining, Clover, Lucerne, Environmental friendliness 1 Introduction Rhenium is a rare metal (its occurrence in Earth's crust amounts to 7x10-8 %). with unique ...
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Rhenium has an extremely high melting point (3180 °C), only lower than carbon (3500 °C) and tungsten (3422 °C) of all the elements. Rhenium has a heat-stable crystalline structure and excellent ductility from freezing to very high temperatures, making it exceptionally resistant to heat and wear (Millensifer et al., 2014, John et al., 2017).
Phytomining is a technique that uses hyperaccumulator plants to extract valuable metals/metalloids from agro-industrial and mining wastes or contaminated sites. Learn …
Rhenium. A metal, atomic number 75, atomic weight 186.2, symbol Re. (Dorland, 28th ed) | Explore the latest full-text research PDFs, articles, conference papers, preprints and more on RHENIUM.
Advantages of Rhenium Phytomining by Lucerne and Clover from Ore Dressing Soils OGNYAN BOZHKOV and CHRISTINA TZVETKOVA Laboratory of Analytical Chemistry and Laboratory of Inorganic Salts, Institute of General and Inorganic Chemistry, Bulgarian Academy of Sciences, Acad. G. Bontchev Str., bl.11, Sofia, BULGARIA E-mail: [email …
Phytomining rhenium is an inexpensive, environmentally friendly green technology. may amp features_am&p master template new QX6.qxt 4/26/2012 12:12 PM Page 34.
DOI: 10.17014/ijog.v1i1.171New technology is needed to protect the safety and health of communities and the environment at ASGM locations in Indonesia. This technology must be simple, cheap, easy to operate, and financially rewarding. A proven option that should be promoted is phytoextraction, a farming activity that could develop …
Cost-effective recovery of metal from plant tissue is a critical step on any phytomining process. In the case of rhenium, the following methodology has been proposed (Bozhkov and Borisova, 2003 ...
Following different accounts of rhenium accumulation, both on field [100,101] and laboratory trials [102], two rhenium phytomining experiments were carried out to date [14,103]. The first ...
PDF | On Dec 14, 2007, Ognyan Bozhkov and others published 30. Ognyan Bozhkov, Christina Tzvetkova,"Advantages of Rhenium Phytomining by Lucerne and Clover from Ore Dressing Soils ...
(rhenium) with phytomining. In addition, rhenium levels in alfalfa and clover were as high as 35.090 . and 46.586 mg/kg (dry weight), respectivel y. Eventually, 95% of rhenium-containi ng leachate ...