Results 1 to 10 of about 31,354 (260)

Back to chromite as a mineralogical strategy for long-term chromium pollution control [PDF]

Nature Communications
Re-oxidation of Cr(III) in treated Cr-contaminated sites poses a considerable source of Cr(VI) pollution, necessitating stable treatment solutions for long-term control.
Tianci Hua, Yanzhang Li, Yuxuan Hu, Rongzhang Yin, Yanan Zhang, Bingxu Hou, Houze Lu, Xiang Ji, Xiangzhi Bai, Anhuai Lu, Yan Li   +10 more
doaj   +3 more sources

Novel preparation of highly photocatalytically active copper chromite nanostructured material via a simple hydrothermal route. [PDF]

PLoS ONE, 2017
Highly photocatalytically active copper chromite nanostructured material were prepared via a novel simple hydrothermal reaction between [Cu(en)2(H2O)2]Cl2 and [Cr(en)3]Cl3.3H2O at low temperature, without adding any pH regulator or external capping agent.
Farshad Beshkar, Sahar Zinatloo-Ajabshir, Samira Bagheri, Masoud Salavati-Niasari   +3 more
doaj   +2 more sources

Photocatalytic degradation and photo-Fenton oxidation of Congo red dye pollutants in water using natural chromite—response surface optimization

Applied Water Science, 2017
Refined natural Fe-chromite was characterized by XRD, FT-IR, reflected polarized microscope, XRF and UV spectrophotometer. Photocatalytic degradation and photo-Fenton oxidation of Congo red dye by Fe-chromite was investigated using 1 mL H2O2.
Mohamed Shaban, Mostafa R. Abukhadra, Suzan S. Ibrahim, Mohamed .G. Shahien   +3 more
doaj   +2 more sources

Sub-pixel Mineral Mapping of Serpentine and Magnesite for Chromite Exploration, Using Hyperion (EO1) Images [PDF]

Analytical and Numerical Methods in Mining Engineering, 2023
Abdasht chromite mine is located in the ultramafic complex of southern Iran, which has abundant chromite reserves such as Soghan, Esfandagheh, Faryab, etc.
Saeed Khojastehfar, Hojatallah Ranjbar, Shahram Shafiei Bafti   +2 more
doaj   +1 more source

Groundwater Quality, Health Risk Assessment, and Source Distribution of Heavy Metals Contamination around Chromite Mines: Application of GIS, Sustainable Groundwater Management, Geostatistics, PCAMLR, and PMF Receptor Model

International Journal of Environmental Research and Public Health, 2023
Groundwater contamination by heavy metals (HMs) released by weathering and mineral dissolution of granite, gneisses, ultramafic, and basaltic rock composition causes human health concerns worldwide.
A. Rashid, M. Ayub, Zahid Ullah, Asma A. Ali, Tariq Sardar, Javed Iqbal, Xubo Gao, J. Bundschuh, Chengcheng Li, S. A. Khattak, L. Ali, Hamed A. El‐Serehy, P. Kaushik, S. Khan   +13 more
semanticscholar   +1 more source

Application of Satellite Remote Sensing, UAV-Geological Mapping, and Machine Learning Methods in the Exploration of Podiform Chromite Deposits

Minerals, 2023
The irregular and sporadic occurrence of chromite pods in podiform chromite deposits (PCD), especially in mountainous terranes with rough topography, necessitates finding innovative methods for reconnaissance and prospecting.
Amir Eskandari, Mohsen Hosseini, Eugenio Nicotra   +2 more
semanticscholar   +1 more source

Automated and Quantitative Mineralogy Applied to Chromite Ore Characterization and Beneficiation

Minerals, 2023
A characterization study of chromite ore from South Africa was conducted using bulk assays, X-ray diffraction, optical, scanning electron microscopy (SEM), automated electron probe microanalysis (EPMA) and quantitative evaluation of mineral by scanning ...
M. Pownceby, D. Mccallum, W. Bruckard
semanticscholar   +1 more source

Interpretation of magnetic and geoelectrical data based on geological and mineralogical evidence in the podiform chromite prospecting, Khoy ophiolite, Northwest Iran

Journal of Economic Geology, 2021
Introduction Podiform chromite deposits are small magmatic chromite bodies formed in the lower section of an ophiolite complex. The Khoy ophiolite covers an extensive area in the northwest of Iran along the Iran-Turkey border.
Behnam Mehdikhani, Ali Imamalipour
doaj   +1 more source

Attractive study of the antimicrobial, antiviral, and cytotoxic activity of novel synthesized silver chromite nanocomposites

BMC Chemistry, 2022
Antibiotic resistance is a global problem. This is the reason why scientists search for alternative treatments. In this regard, seven novel silver chromite nanocomposites were synthesized and assayed to evaluate their antimicrobial, antiviral, and ...
M. Sayed, T. A. El-Rahman, H. Abdelsalam, A. Ali, Mayar M. Hamdy, Yara A. Badr, Nada H. Abd El- Rahman, Sabah M. Abd El-Latif, Sara H. Mostafa, Sondos S. Mohamed, Z. M. Ali, Asmaa. A. H. El-Bassuony   +11 more
semanticscholar   +1 more source

A comparison of trace element concentrations in chromite from komatiites, picrites and layered intrusions: Implications for the formation of massive chromite layers.

Canadian journal of earth sciences (Print), 2022
By examining the minor and trace element contents of chromites from three intrusions; the Bushveld Complex (South Africa), the Stillwater Complex (USA) and the Great Dyke (Zimbabwe), and comparing these chromite compositions to those of magmas from which
S. Barnes, E. Mansur, W. Maier, S. Prevec   +3 more
semanticscholar   +1 more source