Results 1 to 10 of about 4,978 (205)

LIBS assisted PCA analysis of multiple rare-earth elements (La, Ce, Nd, Sm, and Yb) in phosphorite deposits [PDF]

open access: yesHeliyon, 2023
In the present study, the immediate detection of rare-earth elements (REEs) in phosphorite deposits has been reported using laser-induced breakdown spectroscopy (LIBS). Numerous emission lines corresponding to the REEs such as lanthanum (La), cerium (Ce),
Amir Fayyaz   +3 more
doaj   +2 more sources

Study on the material source and enrichment mechanism of REE-rich phosphorite in Zhijin, Guizhou [PDF]

open access: yesScientific Reports
Rare earth element (REE)-rich phosphorite in the Guizhou region mainly exists in the Doushantuo Formation and Gezhongwu Formation in early Cambrian strata, which are some of the important strata containing phosphorite resources in China.
Jingya Wang, Zhongkun Qiao
doaj   +2 more sources

Emittance Spectroscopy and Broadband Thermal Remote Sensing Applied to Phosphorite and Its Utility in Geoexploration: A Study in the Parts of Rajasthan, India

open access: yesRemote Sensing, 2019
The contrast in the emissivity spectra of phosphorite and associated carbonate rock can be used as a guide to delineate phosphorite within dolomite. The thermal emissivity spectrum of phosphorite is characterized by a strong doublet emissivity feature ...
Arindam Guha   +2 more
exaly   +3 more sources

Kinetics of the decomposition reaction of phosphorite concentrate [PDF]

open access: yesChemical Industry and Chemical Engineering Quarterly, 2014
Apatite is the raw material, which is mainly used in phosphate fertilizer, and part are used in yellow phosphorus, red phosphorus, and phosphoric acid in the industry.
Huang Run   +4 more
doaj   +3 more sources

Numerical Investigation on Stratum and Surface Deformation in Underground Phosphorite Mining Under Different Mining Methods

open access: yesFrontiers in Earth Science, 2022
With the ending of deep-concave open-pit phosphorite extractions and gradual exhausting of shallow mineral resources, stoping of phosphorite seams has entered or will enter into underground mining.
Xiaoshuang Li   +5 more
exaly   +3 more sources

Studies on geochemical characteristics and biomineralization of Cambrian phosphorites, Zhijin, Guizhou Province, China. [PDF]

open access: yesPLoS ONE, 2023
Phosphate rocks, an important ore resource in Guizhou Province, China, are mainly hosted within the Sinian Doushantuo Formation and the Cambrian Meishucun Formation.
Lei Gao   +5 more
doaj   +2 more sources

Effect of mechanochemical activation of natural phosphorite structure as well as phosphorus solubility. [PDF]

open access: yesPLoS ONE, 2019
Mechanochemical treatment of phosphate rock is considered as an effective and ecologically clean way of treating the medium- and low-grade phosphorite which could be used as fertilizer instead of the high-grade phosphorite.
Nana Fang   +5 more
doaj   +2 more sources

Assessing geochemical and natural radioactivity impacts of Hamadat phosphatic mine through radiological indices. [PDF]

open access: yesPLoS ONE, 2023
The utilization of phosphorite deposits as an industrial resource is of paramount importance, and its sustainability largely depends on ensuring safe and responsible practices.
Douaa Fathy   +7 more
doaj   +2 more sources

Biodegradable Cassava Starch/Phosphorite/Citric Acid Based Hydrogel for Slow Release of Phosphorus: In Vitro Study [PDF]

open access: yesGels
Phosphorous (P) is one the most important elements in several biological cycles, and is a fundamental component of soil, plants and living organisms. P has a low mobility and is quickly adsorbed on clayey soils, limiting its availability and absorption ...
AndrĂ©s F. Chamorro   +2 more
doaj   +2 more sources

Geochemical Characteristics and Formation Mechanism of Phosphorite of Lower Cambrian Maidiping Formation in Huangjiaping Area of Mabian County, Southern Sichuan

open access: yesKuangchan zonghe liyong, 2023
During the Meishucun period of the Early Cambrian, a large-scale phosphorus formation event occurred on the Upper Yangtze platform. As the product of this event, the sedimentary environment and formation mechanism of phosphorite remains elusive. In order
Zuoqiang Li   +5 more
doaj   +1 more source

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