Results 51 to 60 of about 16,298 (289)

Evaluating environmental impacts of thorium extraction: A comparative study of solvent and electrosorption technologies using life cycle assessment (LCA)

Cleaner Engineering and Technology
Thorium extraction techniques, such as solvent extraction from monazite and electrosorption techniques from water leach purification (WLP) of radioactive waste residues, are important for thorium recovery, particularly in Malaysia.
Naseem Akhtar, Aznan Fazli Ismail, Marlia Mohd Hanafiah, Syazwani Mohd Fadzil, Sulgiye Park   +4 more
doaj   +1 more source

Alkaline Autoclave Leaching of Refractory Uranium-Thorium Minerals [PDF]

مجله علوم و فنون هسته‌ای, 2011
This paper deals a with the study of an innovative method for processing the Oman placer ores by alkaline leaching in ball mill autoclaves, where grinding and leaching of the refractory minerals take place simultaneously.
S A. Milani, A Sam
doaj  

Studi Ekstraksi Bijih Thorit dengan Metode Digesti Asam dan Pemisahan Thorium dari Logam Tanah Jarang dengan Metode Oksidasi-Presipitasi Selektif [PDF]

, 2017
Thorium (Th) is a radioactive metal that can be formed along with uranumand rare earth metals (REM). Minerals contain radioactive elements are monazite ((Ce,La,Y,U/Th)PO4), thorianite ((Th,U)O2), and thorite (ThSiO4).
Anggraini, M. (Mutia), Mubarok, M. Z. (Mohammad), Said, M. I. (Moch), Widana, K. S. (Kurnia)   +3 more
core  

Improvements to 232-thorium, 230-thorium, and 231-protactinium analysis in seawater arising from GEOTRACES intercalibration [PDF]

, 2012
The GEOTRACES program requires the analysis of large numbers of seawater samples for ^(232)Th, ^(230)Th, and ^(231)Pa. During the GEOTRACES international intercalibration exercise, we encountered unexpected difficulties with recovery and contamination of
Anderson, Robert F., Auro, Maureen E., Bradtmiller, Louisa I., Burke, Andrea, Fleisher, Martin Q., Robinson, Laura F.   +5 more
core   +4 more sources

Nanothermometry in Living Cells: Physical Limits, Conceptual and Material Challenges

Advanced Functional Materials, EarlyView.
Heat and temperature are fundamental to life. When nanothermometers began probing regions as small as a living cell, they triggered controversial claims of large intracellular temperature gradients. We review physical constraints energy‐conservation, entropy production, thermodynamic fluctuations, and molecular dynamics.
Taras Plakhotnik
wiley   +1 more source

Hydrometallurgical Recovery of Precious Metals and Removal of Hazardous Metals Using Persimmon Tannin and Persimmon Wastes

Metals, 2015
Novel and environmentally benign adsorbents were prepared via a simple sulfuric acid treatment process using the wastes of astringent persimmon, a type of biomass waste, along with persimmon tannin extract which is currently employed for the tanning of ...
Katsutoshi Inoue, Manju Gurung, Ying Xiong, Hidetaka Kawakita, Keisuke Ohto, Shafiq Alam   +5 more
doaj   +1 more source

Additive Manufacturing of NiTi Shape Memory Alloys for Elastocaloric Applications: A Review

Advanced Functional Materials, EarlyView.
Additive manufacturing enables complex NiTi architectures that overcome key limitations in elastocaloric refrigeration, including poor heat transfer and high mechanical work input. This review surveys recent advances in LPBF‐ and DED‐fabricated NiTi shape memory alloys for elastocaloric applications, highlighting process–structure–performance ...
Ignatius Andre Setiawan, Mohammad Mehrali, Jaka Tušek, Shiva Mohajerani, Xiebin Wang, Dermot Brabazon, Mohammad Elahinia, Mehrshad Mehrpouya   +7 more
wiley   +1 more source

Analysis of iron-rich hydrochloric acid solutions for uranium, thorium, rare-earth elements and other heavy metals

Journal of Analytical Science and Technology, 2023
A simple solvent extraction method is described for the separation of trace elements including uranium (U), thorium (Th) and rare-earth elements (REEs) from industrially processed iron-rich hydrochloric acid solutions.
Beena Sunilkumar, M. Krishnakumar, A. A. Patwardhan   +2 more
doaj   +1 more source

A Study of the Residual 39Ar Content in Argon from Underground Sources

, 2012
The discovery of argon from underground sources with significantly less 39Ar than atmospheric argon was an important step in the development of direct-detection dark matter experiments using argon as the active target.
A. Goretti, A. Nelson, A. Wright, Acosta-Kane, Agostinelli, Alexander, An. Ianni, Arpesella, B. Loer, Benetti, Benetti, Boulay, C. Galbiati, C. Love, C.J. Martoff, Caffee, Collon, Collon, D. Holtz, D. Montanari, F. Calaprice, G. Guray, Gold, Holland, J. Xu, Jiang, Lally, Laubenstein, Lehmann, Loosli, Loosli, Lyubetskaya, M. Laubenstein, Martoff, Marty, Mei, Nier, O’Nions, R.B. Vogelaar, S. Mukhopadhyay, S.D. Rountree, Sarda, Staudacher, T. Hohman, Ziegler   +44 more
core   +1 more source

Thorium Between Removing, Recovery and Recycling: A Membrane Challenge for Urban Mining

, 2023
Although a slightly radioactive element, thorium is considered very toxic because its various species, which reach the environment, can constitute an important problem for the health of the population. The present paper aims to expand the possibilities of using membrane processes in the removal, recovery and recycling of thorium from industrial ...
Geani Teodor Man, Paul Constantin Albu, Aurelia Cristina Nechifor, Alexandra Raluca Grosu, Szidonia-Katalin Tanczos, Vlad-Alexandru Grosu, Mihail-Răzvan Ioan, Gheorghe Nechifor   +7 more
openaire   +1 more source