A new process for nickel ammonium disulfate production from ash of the hyperaccumulating plant Alyssum murale

Barbaroux, Romain; Plasari, Edouard; Mercier, Guy; Simonnot, Marie-Odile; Morel, Jean-Louis; Blais, Jean‐François

doi:10.1016/j.scitotenv.2012.01.063

Cited by 79 publications

(48 citation statements)

References 14 publications

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“…Combustion is generally the first step of Ni recycling (Machado et al 2000;Boominathan et al 2004;Sas-Nowosielska et al 2004;Keller et al 2005;Barbaroux et al 2012). We investigated the influence of combustion temperature and duration on ash composition to bring a better understanding of this step.…”

Section: Optimization Of the Furnace Treatmentmentioning

confidence: 99%

Selection and Combustion of Ni-Hyperaccumulators for the Phytomining Process

Zhang

Houzelot

Bani

et al. 2014

International Journal of Phytoremediation

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Ni recovery from serpentine soils by phytomining has proved feasible. Phytomining involves the crop of hyperaccumulating plants with high Ni contents and the valorization of Ni by pyro or hydrometallurgical process. In order to evaluate the Ni content of different plants, we analyzed the organs of 14 hyperaccumulators from three genera: Alyssum, Leptoplax and Bornmuellera. The highest concentration was recorded in the leaves of Leptoplax (34.3 +/- 0.7 mg g(-1)DM). Additionally, we investigated biomass combustion which is the first step of the process we designed to obtain a nickel salt. We showed that temperature and duration were important parameters to ensure a good quality of ashes. At the bench scale, the best conditions were 550 degrees C and 3 h. In this way, we obtained ashes in which Ni could reach 20 wt%. Biomass ashes can be considered as a bio-ore for recovering metal value.

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Section: Optimization Of the Furnace Treatmentmentioning

confidence: 99%

Selection and Combustion of Ni-Hyperaccumulators for the Phytomining Process

Zhang

Houzelot

Bani

et al. 2014

International Journal of Phytoremediation

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“…While this is technically feasible, it was noted that the relatively high grade and unique bio-ore composition free of most impurities makes it well suited to be processed to Ni catalysts for the organic chemistry industry (Losfeld et al, 2012) or to be turned into higher value Ni chemicals, such as for the electroplating industry (Barbaroux et al, 2012). The use for electrochemical Ni products places higher demands on purity, but is a higher value product, and may increase the economic viability of agromining.…”

Section: Introductionmentioning

confidence: 99%

“…Ashing the harvested biomass has benefits such as reducing the mass of the original material by 10-20-fold, potential to recover energy (heat) from incineration, and transforming organo-nickel compounds into nickel oxide (NiO). In A C C E P T E D M A N U S C R I P T 3 terms of product recovery, previous studies have used either sulphuric acid (H 2 SO 4 ) to leach biomass to produce Ni micronutrient fertiliser, followed by solvent extraction (Barbaroux et al, 2011), or a combination of concentrated H 2 SO 4 leaching of the ash followed by sodium hydroxide (NaOH), ammonium sulphate ((NH 4 ) 2 SO 4 ) and sodium fluoride (NaF) additions, fractionated crystallisation and evaporation to manufacture a purified ammonium nickel sulphate hexahydrate (Ni(NH 4 ) 2 (SO 4 ) 2 ·6H 2 O) product (Barbaroux et al, 2012). Earlier work has also shown that the high concomitant concentrations of Ca (20-40%), Mg (1-5%) and K (7-11%) are a major obstacle for deriving pure Ni-salts from the bio-ore in a streamlined process (Barbaroux et al, 2011).…”

Section: Introductionmentioning

confidence: 99%

Characterisation and hydrometallurgical processing of nickel from tropical agromined bio-ore

et al. 2017

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Hyperaccumulator plants ("metal crops") can be used for selective extraction of Ni from lowgrade resources with high concentration factors, thereby producing a high-grade "bio-ore". This so-called agromining (or phytomining) technology involves farming select metal crops on ultramafic soils, mineral wastes, or overburden that are sub-economic Ni resources for conventional extractive technology. Key to profiting from agromining is the efficient recovery of Ni and by-products from the bio-ore, either directly from freshly harvested biomass or from the ash after incineration. Bio-ore of wild grown specimens of the Ni hyperaccumulator plants Rinorea bengalensis and Phyllanthus securinegoides were collected in Malaysia. After incineration, the ash composites contained 5.5 and 12.7 wt.% Ni for Rinorea and Phyllanthus respectively, along with substantial amounts of Ca, K, C, Mg, P, Na, S and Cl. Other minor impurities included Si, Fe, Al, Mn and Zn. The solids were characterised in detail by SEM-EDS, XRD and XANES. The effect of solution chemistry on the leaching behaviour of the bio-ore (dried biomass and ash) was also assessed. A hydrometallurgical process for recovering Ni from the bio-ore was then demonstrated. The processes involves the bio-ore (ash) being water-washed, yielding >90% recovery of K to solution. After water washing, >95% Ni recovery was achieved by H 2 SO 4 leaching at 60ºC, although long residence times and high acid concentrations were required. Ni(OH) 2 was then precipitated from solution using the K 2 CO 3 rich wash-water. The bio-ore generated precipitant was compared with NaOH and MgO used industrially.

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“…There is clear potential for phytomining of nickel, in which crops of hyperaccumulators are grown on soils that are sub‐economic for conventional mining, with the harvesting of their biomass to produce a nickel‐rich ‘bio‐ore’ (van der Ent et al ., ). This bio‐ore is much richer in nickel than traditional mined ores and can be used to derive pure chemicals (Barbaroux et al ., ) or catalysts (Losfeld et al ., ). Phytoextraction applications exist for a range of other elements for which hyperaccumulator plants are known, including selenium, thallium and manganese, or for remediating arsenic‐ cadmium‐, or selenium‐polluted soils (Schwartz et al ., ; Gonzaga et al ., ; Schiavon & Pilon‐Smits, ).…”

Section: Scientific Curiosity To Real‐life Applications: Nickel Phytomentioning

confidence: 97%

The discovery of nickel hyperaccumulation in the New Caledonian tree Pycnandra acuminata 40 years on: an introduction to a Virtual Issue

et al. 2018

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A new process for nickel ammonium disulfate production from ash of the hyperaccumulating plant Alyssum murale

Cited by 79 publications

References 14 publications

Selection and Combustion of Ni-Hyperaccumulators for the Phytomining Process

Selection and Combustion of Ni-Hyperaccumulators for the Phytomining Process

Characterisation and hydrometallurgical processing of nickel from tropical agromined bio-ore

The discovery of nickel hyperaccumulation in the New Caledonian tree Pycnandra acuminata 40 years on: an introduction to a Virtual Issue

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