Article
Materials Science, Ceramics
Eusebiu Rat, Sergio Martinez-Martinez, Juan Antonio Sanchez-Garrido, Luis Perez-Vilargejo, Eduardo Garzon, Pedro J. Sanchez-Soto
Summary: In this study, clays from Alhabia, Spain, were analyzed using various analytical techniques. The clay samples were found to have specific mineralogical, chemical, textural, and ceramic properties. They can be used for the fabrication of porous ceramic supports and tiles.
CERAMICS INTERNATIONAL
(2023)
Article
Green & Sustainable Science & Technology
Zhongzhong Zhao, Wenhuan Liu, Yiwen Jiang, Yongfeng Wan, Renhao Du, Hui Li
Summary: This study explores the effects of different particle sizes of lead smelting slag (LSS) on the compressive strength of cementitious materials. The results show that decreasing the particle size can significantly improve the compressive strength of the materials, especially in the early stage. Analysis of LSS with different particle sizes reveals that decreasing the particle size increases the specific surface areas and decreases the degree of crystallinity. Microscopic analysis of the cementitious materials indicates that decreasing the particle size enhances the degree of reaction and gelation, resulting in a denser structure.
JOURNAL OF CLEANER PRODUCTION
(2022)
Article
Construction & Building Technology
Zhongzhong Zhao, Hui Li, Wenhuan Liu, Yongfeng Wan, Wen Huang
Summary: The hybrid binder method is an effective solution for lead smelting slag disposal and the immobilization of heavy metals. This study investigates the effects of activators on the solidification/stabilization process of lead smelting slag. The results show that hybrid excitation can significantly enhance the compressive strength and reduce the leaching concentration of heavy metals. The mechanisms behind the improved performance of solidification/stabilization solids due to hybrid excitation are discussed.
CONSTRUCTION AND BUILDING MATERIALS
(2023)
Article
Construction & Building Technology
Jia Li, Yanchang Liu, Xuan Ke, Xiangke Jiao, Rui Li, Caijun Shi
Summary: Geopolymers were synthesized using electrolytic manganese residue and lead-zinc smelting slag as raw materials to immobilize Pb2+ and Zn2+. The compressive strengths of geopolymers were influenced by supplementary cementitious materials. Geopolymers were found to successfully immobilize heavy metals, and their effects on compressive strength and leaching concentration were explored.
CEMENT & CONCRETE COMPOSITES
(2022)
Review
Green & Sustainable Science & Technology
Foquan Gu, Yuanbo Zhang, Zijian Su, Yikang Tu, Shuo Liu, Tao Jiang
Summary: This study reviews the technologies for recovering chromium from chromium-containing SSS slags, including analysis of global chromium resources and consumption, physicochemical characteristics of SSS slags, discussion on various recovery methods, technical challenges, and possible measures to enhance chromium recovery.
JOURNAL OF CLEANER PRODUCTION
(2021)
Review
Green & Sustainable Science & Technology
Wentao Zhou, Xiao Liu, Xianjun Lyu, Wenhao Gao, Huili Su, Chuanming Li
Summary: China's copper resources are characterized by low grade and complex composition, producing a large amount of copper smelting slag (CSS) containing valuable elements such as copper and iron through smelting. Various methods for extracting and separating copper and iron from CSS are reported, including physical and chemical methods. This review provides guidance for the selection and development of secondary resources of CSS.
JOURNAL OF CLEANER PRODUCTION
(2022)
Article
Materials Science, Multidisciplinary
Sui Xie, Xinhua Yuan, Fupeng Liu, Baojun Zhao
Summary: The composition and microstructures of the quenched smelting and converting slags were analyzed to determine slag properties and the factors influencing these properties for optimizing operating conditions in the copper flash smelting process. The effects of matte grade, SO2 partial pressure, and the Fe/SiO2 ratio on the liquidus temperature and copper content of the smelting slag were investigated using thermodynamic software FactSage 8.2. The possibility of recovering valuable metals from the smelting and converting slags through pyrometallurgical reduction by carbon was also discussed.
Article
Environmental Sciences
Youfa Luo, Rongrong Xing, Yonggui Wu
Summary: Direct revegetation is an effective strategy for rehabilitating metal smelting slag sites, and the influence of root exudates on the geochemical behaviors of potentially toxic elements (PTEs) in different slag particle size fractions needs further investigation. This study found that root exudates increased the bioavailability of Cu, Zn, and Cd in smaller slag particles and enhanced the transformation of acid-soluble PTEs into more stable fractions. These findings contribute to understanding the environmental risk management of direct revegetation in metal smelting slag sites.
JOURNAL OF ENVIRONMENTAL MANAGEMENT
(2023)
Article
Engineering, Chemical
Yucheng Liu, Fang Gao, Tianci Chen, Chonggang Wang, Kaibo Hu, Chuanqi Zhang, Zibin Huang, Xuewei Li, Yinhua Wan
Summary: The traditional technology for recovering rare earths from rare earth fluoride (REF3) solid wastes has problems of environmental pollution and excessive chemical consumption. This study introduced a mechanochemical process to treat REF3 smelting slag and successfully obtained rare earth hydrate (RE(OH)3) through acid leaching. The process is environmentally friendly and efficient.
SEPARATION AND PURIFICATION TECHNOLOGY
(2023)
Article
Engineering, Environmental
Xiaocen Jia, Liyuan Ma, Jing Liu, Peng Liu, Lu Yu, Jianwei Zhou, Wanyu Li, Weiqing Zhou, Zichao Dong
Summary: The study revealed that under reducing conditions, S. oneidensis can react with Fe(III) to dissolve antimony-rich smelting slag, immobilize released antimony, preferentially adsorb Sb(III), and reduce Sb(V) in aqueous solution. Additionally, the biological adsorption of antimony by S. oneidensis and the simultaneous chemical redox reaction of Sb-Fe were mediated by the presence of Fe(III). The co-precipitation of antimony with iron to form a secondary mineral was identified by EXAFS analysis, suggesting that S. oneidensis has a positive impact on immobilizing antimony and reducing its toxicity in anoxic environments, providing a theoretical basis for antimony contamination treatment.
JOURNAL OF HAZARDOUS MATERIALS
(2022)
Article
Geology
Fernando Sola, Juan C. Braga, Gunnar Saelen
Summary: While vertical facies successions can be examined in ancient deposits, it is difficult to predict the impact of sea level variation on facies distribution. This study in Spain shows that frequent changes in facies width challenge the adequacy of using vertical lithofacies successions to reconstruct relative sea-level change in carbonate depositional systems.
JOURNAL OF SEDIMENTARY RESEARCH
(2022)
Article
Construction & Building Technology
Wenhuan Liu, Renhao Du, Zhongzhong Zhao, Rui Zhang, Yongfeng Wan, Hui Li
Summary: This study explored the utilization of lead smelting slag (LSS) as a resource through the preparation of eco-mine cemented backfill materials (MCBM). The optimal binder composition ratio was found to be 46% LSS, 20% lime ash slag (LAS), 13% slag powder (SP), 17% cement clinker (CC), and 4% bischofite (BF), resulting in compressive strengths of 11.1 MPa, 16.9 MPa, and 24.2 MPa at 3, 7, and 28 days, respectively. Increasing the binder-sand ratio led to improved mechanical properties and denser hydration products. The MCBM also exhibited a solidification ratio above 70% for heavy metals, meeting groundwater standards.
CONSTRUCTION AND BUILDING MATERIALS
(2023)
Article
Metallurgy & Metallurgical Engineering
Bo-wen Ruan, Fen Jiao, Wei Liu, Zu-chao Pan, Wen-qing Qin
Summary: Gypsum sludge, a hazardous solid waste from the non-ferrous smelting industry, presents environmental challenges for disposal and utilization. This study investigates the potential of using gypsum sludge as a replacement for limestone in smelting slagging, and examines the impact of gypsum sludge and smelting conditions on high lead slag reduction smelting through thermodynamic calculations and experiments. It is found that controlling the dosage of calcium sulfate in the gypsum sludge is necessary due to its consumption of reducing agent and vulcanization of metal oxide. Optimal conditions for comprehensive recovery of valuable metals are identified, showing promising direct recovery rates of lead and zinc.
JOURNAL OF CENTRAL SOUTH UNIVERSITY
(2023)
Article
Green & Sustainable Science & Technology
Qilin Zhai, Runqing Liu, Changtao Wang, Wei Sun, Chongjian Tang, Xiaobo Min
Summary: This study focuses on the recovery of arsenic and copper from copper smelting slag (CS) by flotation. The results show that selecting the right collector is crucial for maximizing the recovery of arsenic and copper. The simultaneous recovery of arsenic and copper not only reduces the toxicity of the tailings, but also has economic benefits.
JOURNAL OF CLEANER PRODUCTION
(2023)
Article
Environmental Sciences
Chuan Liu, Shuchen Sun, Xiaoping Zhu, Ganfeng Tu
Summary: A novel and effective smelting-collection process was proposed for recovering platinum from waste automotive catalyst (WAC). By mixing different WAC carriers, adding iron powder and CaO, a platinum recovery rate of over 98% was achieved.
JOURNAL OF MATERIAL CYCLES AND WASTE MANAGEMENT
(2021)
Article
Geochemistry & Geophysics
Isaac Corral, Esteve Cardellach, Merce Corbella, Angels Canals, David Gomez-Gras, Albert Griera, Michael A. Cosca
Article
Geology
Philippe Muchez, Merc Corbela
Article
Geosciences, Multidisciplinary
Didac Navarro-Ciurana, Merce Corbella, Esteve Cardellach, Elena Vindel, David Gomez-Gras, Albert Griera
MARINE AND PETROLEUM GEOLOGY
(2016)
Article
Geology
Didac Navarro-Ciurana, Luis Alberto Campos-Quispe, Esteve Cardellach, Elena Vindel, David Gomez-Gras, Albert Griera, Merce Corbella
ORE GEOLOGY REVIEWS
(2016)
Article
Geology
Isaac Corral, Esteve Cardellach, Merce Corbella, Angels Canals, Albert Griera, David Gomez-Gras, Craig A. Johnson
ORE GEOLOGY REVIEWS
(2017)
Article
Geology
Didac Navarro-Ciurana, Esteve Cardellach, Elena Vindel, Albert Griera, David Gomez-Gras, Merce Corbella
ORE GEOLOGY REVIEWS
(2017)
Article
Geology
Isaac Corral, Merce Corbella, David Gomez-Gras, Albert Griera
BOLETIN DE LA SOCIEDAD GEOLOGICA MEXICANA
(2018)
Article
Geology
Hamad Ur Rahim, Mumtaz Muhammad Shah, Merce Corbella, Didac Navarro-Ciurana
CARBONATES AND EVAPORITES
(2020)
Article
Computer Science, Interdisciplinary Applications
Ashkan Hassanzadeh, Enric Vazquez-Sune, Merce Corbella, Rotman Criollo
Summary: Geopropy is an open-source decision-making algorithm implemented in Python that generates 3D cross-sections. It simulates the steps taken by geologists in creating cross-sections and automatically selects the appropriate stages based on complexity. Geopropy provides a simpler, more comprehensible approach to geological modelling and creates the potential for using machine learning algorithms in this field.
ENVIRONMENTAL MODELLING & SOFTWARE
(2022)
Article
Geochemistry & Geophysics
Esteban Mellado, Merce Corbella, Andrew Kylander-Clark
Summary: Recent studies of Late Permian calc-alkaline lamprophyre dykes in the Catalan Coastal Range have found allanite as the main REE-bearing phase. The allanite crystals show complex characteristics and suggest multiple crystallization events. Most allanite grains have a metamorphic origin, but could also be related to magmatic and hydrothermal processes.
Article
Geochemistry & Geophysics
Hamad-ur-Rahim, Shazia Qamar, Mumtaz Muhammad Shah, Merce Corbella, Juan Diego Martin-Martin, Hammad Tariq Janjuhah, Didac Navarro-Ciurana, Vasiliki Lianou, George Kontakiotis
Summary: This study conducted a comprehensive investigation into the diagenetic changes, particularly dolomitization patterns in the Jurassic carbonates of Lesser Himalayan fold and thrust belt in NW Pakistan. The results revealed distinct processes of dolomitization leading to the formation of different types of dolomites within the studied area.
Article
Multidisciplinary Sciences
Ashkan Hassanzadeh, Sonia Valdivielso, Enric Vazquez-Sune, Rotman Criollo, Merce Corbella
Summary: Isocompy is an open source Python library that uses machine learning algorithms and user-defined variables to estimate isotopic compositions. It provides functionalities such as dataset preprocessing, outlier detection, statistical analysis, feature selection, model validation and calibration, and postprocessing. Isocompy can handle discontinuous inputs in time and space, and generates extensive output reports, figures, and maps for the comprehension of stable water isotope studies.
SCIENTIFIC REPORTS
(2023)
Article
Geology
Didac Navarro-Ciurana, Isaac Corral, Merce Corbella
Summary: A guide for exploring Mississippi Valley-type (MVT) deposits is proposed using the Ri ' opar area in SE Spain as an example. Detailed sampling and analysis of dolostones in the area revealed different isotopic compositions and rare earth element contents between mineralized and unmineralized dolostones. The results suggest that isotopic compositions, such as C and O isotopes, as well as rare earth element contents can be used as a new geochemical tool for MVT exploration in dolomitized terrains.
ORE GEOLOGY REVIEWS
(2023)
Article
Environmental Sciences
Didac Navarro-Ciurana, Merce Corbella, Julia Farre-de-Pablo, Isaac Corral, Elisabeth Buixadera, Robert Morera-Valverde, Joaquin A. Proenza
Summary: This paper characterizes the occurrence of non-natural cerium oxide particles in roadside dust near Barcelona, which are likely emitted from vehicle exhaust. The findings highlight the environmental and health hazards posed by these emissions, calling for further research.
ATMOSPHERIC ENVIRONMENT
(2023)
Proceedings Paper
Geology
Didac Navarro-Ciurana, Esteve Cardellach, Carmen Galindo, Jose Manuel Fuenlabrada, Albert Griera, David Gomez-Gras, Elena Vindel, Merce Corbella
15TH WATER-ROCK INTERACTION INTERNATIONAL SYMPOSIUM, WRI-15
(2017)