The role of Al13-polymers in the recovery of rare earth elements from acid mine drainage through pH neutralization

Moraes, Mateus Lanna Borges de; Murciego, Ascensión Murciego; Álvarez‐Ayuso, E.; Ladeira, Ana Cláudia Queiroz

doi:10.1016/j.apgeochem.2019.104466

Cited by 29 publications

(7 citation statements)

References 48 publications

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“…(b) Box plot of log-transformed, North American shale composite (NASC)-normalized REE values in the units of mol/L . For comparison, different types of water resources, including seawater (median value, n = 178) and river water (median value, n = 259), produced water (produced fluid in Southern Junggar Basin (China) ( n = 17), produced water in Wyoming (USA) ( n = 38), flowback in Wordford Basin (USA) ( n = 6)), and acid mine water from Brazil ( n = 3), China ( n = 25), − and USA ( n = 27) , are shown in this figure. Variations in (c) europium anomaly (Eu/Eu*), (d) cerium anomaly (Ce/Ce*), and (e) ΣLREE/ΣHREE ratio at different sampling sites.…”

Section: Resultsmentioning

confidence: 99%

“…High concentrations (thousands of ppm) of REEs discovered in deep-sea mud in the Pacific Ocean make it another promising resource for REEs. , In groundwater, seawater, river water, and lake water, the median concentrations of total REEs (ΣREEs) were 0.427, 0.015, 0.139, and 0.710 μg/L, respectively . The total REEs in acid mine drainages (AMD) can exceed those in natural waters by several orders of magnitude, , despite low REE concentrations (a median of value 36.1 μg/L) reported in the literature . A nationwide study showed that concentrations of REEs in geothermal and produced waters in the United States are at least at the ng/L level .…”

Section: Introductionmentioning

confidence: 99%

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Rare Earth Elements Occurrence and Economical Recovery Strategy from Shale Gas Wastewater in the Sichuan Basin, China

Tian

Chang

Tang

et al. 2020

ACS Sustainable Chem. Eng.

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Global demand for rare earth elements (REEs), which are central to many modern high-tech industries, is increasing rapidly. For the first time, we discovered and determined the REEs concentrations in Sichuan Basin shale gas flowback and produced water (FPW). The total REEs in shale gas FPW investigated in this work ranged from 4.5 to 118.3 μg/L. Europium (Eu) was found in all samples (0.92−79.62 μg/L). Our study suggests that there was approximately 4.2 tons of Eu 2 O 3 in FPW worldwide in 2016, and that this value could increase to 16.8−111.7 tons in 2030. We discussed potential methods for Eu recovery from FPW and further research needs to facilitate recovery of REE. The results suggest that wastewater from oil and gas extraction constitutes a promising resource for REEs, especially for Eu.

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Section: Resultsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Rare Earth Elements Occurrence and Economical Recovery Strategy from Shale Gas Wastewater in the Sichuan Basin, China

Tian

Chang

Tang

et al. 2020

ACS Sustainable Chem. Eng.

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“…The REE/CM depleted water is sent to the permitted discharge point, meeting applicable clean water standards as set by the relevant local, state, and federal agencies. Processes derived from the work of West Virginia University have been investigated by others such as Moraes et al investigating the role of A13-polymers in the neutralization process [46]. Moraes et al concluded that aluminum polymers play a role in the losses of REE to tailings in specific ranges of pH.…”

Section: Introductionmentioning

confidence: 99%

A Fundamental Economic Assessment of Recovering Rare Earth Elements and Critical Minerals from Acid Mine Drainage Using a Network Sourcing Strategy

et al. 2021

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In recent years, acid mine drainage (AMD) has emerged as a promising unconventional source of rare earth elements (REEs) and other critical minerals (CMs) such as cobalt and manganese. In this regard, AMD provides a natural heap leaching effect that extracts and concentrates REE/CM from the host strata creating a partially enriched feedstock suitable for downstream extraction, separation, and recovery. While several prior studies have described processes and approaches for the valorization of AMD, very few have described the supply chain and infrastructure requirements as well as the associated economic assessment. To that end, this paper provides a fundamental economic assessment of REE/CM recovery from AMD using a network sourcing strategy in addition to a robust, flexible feedstock separations and refining facility. The methodology of this paper follows that of a typical techno-economic analysis with capital and operating costs estimated using AACE Class IV (FEL-2) guidelines. To demonstrate the range of possible outcomes, four pricing scenarios were modeled including contemporary prices (September, 2021) as well as the minimum and maximum prices over the last decade. In addition, five production scenarios were considered reflecting variations in the product suite, ranging from full elemental separation to magnet REE and CM production only (i.e., Pr, Nd, Tb, Dy, Y, Sc, Co, and Mn). The results of this analysis show that, with the exception of the minimum price scenario, all operational configurations have positive economic indicators with rates of return varying from 25% to 32% for the contemporary price scenario. The optimal configuration was determined to be production of Co, Mn, and all REEs except for mischmetal, which is not recovered. Sensitivity analysis and Monte Carlo simulation show that capital cost and HCl consumption are the two major factors influencing rate of return, thus indicating opportunities for future technology development and cost optimization. Implications of the study and a cooperative profit-sharing model for sourcing are also described.

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“…Uma excelente opção para reduzir os danos ao meio ambiente, agregando valor aos resíduos da mineração de urânio é a recuperação e separação dos ETR, a partir do efluente de drenagem ácida de mina, mas esse processo requer ainda mais estudos (LIMA, 2014;ALBERTI, 2017). A recuperação de ETR por essa via secundária poderia gerar capital, reduzindo assim, os custos dos tratamentos e ainda corroborar para o desenvolvimento econômico sustentável (MORAES et al, 2020).…”

Section: Introductionunclassified

Técnicas de recuperação e separação de elementos terras raras empregando resinas de troca iônica

Monteiro

Passos

Tameirão

2021

REIS

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Os Elementos Terras Raras (ETR) são de suma importância para tecnologia de ponto, porém sua oferta é bastante restrita. A obtenção desses elementos é financeiramente onerosa e causadora de muitos impactos ambientais. Uma alternativa versátil e eficiente de obtenção de ETR é a extração em fase sólida com resinas de troca iônica. Diante disso, este trabalho tem como objetivo, realizar um estudo bibliográfico sobre a recuperação e separação dos elementos terras raras de efluentes ácidos por meio da técnica de troca iônica utilizando resinas. O estudo foi realizado através de uma revisão de literatura no intervalo temporal de 2015 a 2020, utilizando as bases de dados Science Direct e Google Scholar. A partir da análise criteriosa do levantamento bibliográfico foram selecionadas 18 referências onde observou-se uma diversidade de agentes lixiviantes, eluentes e resinas, tornando-se assim, inviável chegar a um senso comum acerca das melhores condições a serem adotados para melhor cenário para extração e recuperação dos ETR, pois os parâmetros indicados são relativos à especificidade da matriz a ser tratada.

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The role of Al13-polymers in the recovery of rare earth elements from acid mine drainage through pH neutralization

Cited by 29 publications

References 48 publications

Rare Earth Elements Occurrence and Economical Recovery Strategy from Shale Gas Wastewater in the Sichuan Basin, China

Rare Earth Elements Occurrence and Economical Recovery Strategy from Shale Gas Wastewater in the Sichuan Basin, China

A Fundamental Economic Assessment of Recovering Rare Earth Elements and Critical Minerals from Acid Mine Drainage Using a Network Sourcing Strategy

Técnicas de recuperação e separação de elementos terras raras empregando resinas de troca iônica

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