Results 31 to 40 of about 6,376 (214)

Uranium from phosphoric acid: Kinetic studies of the solvent extraction processes for uranium extraction

Desalination and Water Treatment, 2009
Kinetics of the mass transfer processes involved in uranium recovery from wet process phosphoric acid (WPA) by solvent extraction employing synergistic extractants has been studied. In the present investigation results on the kinetics of separation of entrained solvent by diluent washing and uranium mass transfer behaviour have been discussed.
Kartikey K. Yadav, R. Vijayalakshmi, H. Singh   +2 more
openaire   +1 more source

Uranium extraction with modified sorbents

Kompleksnoe Ispolʹzovanie Mineralʹnogo syrʹâ/Complex Use of Mineral Resources/Mineraldik Shikisattardy Keshendi Paidalanu, 2020
Hydrometallurgical processing of uranium-containing raw materials generates a significant amount of liquid industry-related waste, namely waste solutions that require disposal. Sorption is known as one of the most effective methods for purifying liquid matters contaminated with radionuclides.
B.E. Abdikerim, B.K. Kenzhaliyev, T.Yu. Surkova, N. Didik, A.N. Berkinbayeva, Z.D. Dosymbayeva, N.S. Umirbekova   +6 more
openaire   +1 more source

Preparation of PAO/TiO2 Electrode and Efficient Extraction of Uranium from Seawater

Yuanzineng kexue jishu
In order to investigate the reduction performance of U(Ⅵ) in seawater by electrochemical technology, TiO2 nanotube array electrode was firstly prepared by anodizing method, and then the amidoxime-modified TiO2 electrode (PAO/TiO2 electrode) was prepared ...
SONG Yan, CHEN Gang, WANG Fengju, WU Haotian, LI Ziming, LI Hao, LI He, CUI Qi, CHEN Shusen
doaj   +1 more source

Study of technological parameters of ion exchange resins and technology of recultivation of off-balance uranium-containing dumps [PDF]

E3S Web of Conferences
The article presents the technology of uranium extraction, the results of uranium extraction from recultivative dumps, physicochemical and technological properties of applied resins, as well as the state of radiation and ecological situation in the area ...
Sanakulov Kuvandik, Sharafutdinov Ulugbek, Razhabboev Ibodulla, Khamidov Rustam, Khamidova Madina   +4 more
doaj   +1 more source

Functionalizing Micro‐to‐Mesoscopic Electrode Architectures for Regulating Electron Transfer Behaviors in Electrocatalysis

Advanced Functional Materials, EarlyView.
A systematic review is conducted to assess the influence of electrode architecture across micro‐ to mesoscopic length scales on electron‐transfer pathways in electrocatalysis. We discuss the structure‐activity relationships in electrocatalytic applications, including resource recovery and environmental remediation, and provide cost‐effective, efficient
Manshu Zhao, Jiaojiao Zhang, Shideng Yuan, Xinmeng Yu, Keming Wan, Xiaoguang Duan, Zhining Wang   +6 more
wiley   +1 more source

Progress in Photocatalytic Assisted Uranium Extraction in Air Atmosphere

He huaxue yu fangshe huaxue
Photocatalytic assisted uranium extraction technology is a rapidly developed technology for uranium extraction from wastewater and seawater in recent years, which can significantly improve the extraction capacity and extraction rate of uranium.
Shan-shan YU, Zhe WANG, Jing CHEN, Yue-xiang LU   +3 more
doaj   +1 more source

W‐N‐C Tandem Catalytic Centers Mediating Efficient Charge Transfer for the Enhanced Radical‐Path U(VI) Photoreduction

Advanced Science, EarlyView.
This work constructed a tandem W−N−C center to simultaneously achieve the regulation of reaction pathways and optimization of charge separation efficiency. The Lewis‐acidic W6+ sites activated O2 to generate O2−$O_2^ - $, with enhanced charge separation via electronic modulation, steering U(VI) reduction down an efficient radical pathway.
Zhiyao Wu, Jinhao Xu, Hao Fu, Yuxiang Deng, Nannan Wang, Wenhua Zhang, Peng Zhang, Zhiwei Huang, Zhenpeng Cui, Shu‐Xian Hu, Wangsuo Wu, Duoqiang Pan   +11 more
wiley   +1 more source

Advances in Photocatalysis and Electrocatalysis of Uranium Extraction in Complex Environments

He huaxue yu fangshe huaxue
Uranium, as the most important fuel for nuclear power operation, is crucial to ensure the sustainable development of nuclear power. However, the supply-demand contradiction of uranium resources in China has become increasingly prominent, and the gap ...
Tao LIN, Rong HE, Tao CHEN, Hao-yu ZHANG, Lian-bing ZHONG, Wen-kun ZHU   +5 more
doaj   +1 more source

Herba Lysimachiae Polysaccharide‐Modified Selenium Nanoparticles Alleviate Oxidative Injury in Kidney Stones via TOMM22‐Regulated Mitophagy Activation

Advanced Science, EarlyView.
HLP‐SeNPs, a Lysimachia christinae polysaccharide‐modified selenium nanoparticle, treat kidney stones by downregulating TOMM22 expression, which reduces PINK1 translocation into mitochondria and promotes its retention on the outer mitochondrial membrane.
Junyi Yang, Guoruiyu Lyu, Wenlong Wan, Dongfeng Yuan, Jiabo Li, Yongqi Wang, Baokang Wang, Zhilong Ma, Yuanyuan Yang, Yang Xun, Xiao Yu   +10 more
wiley   +1 more source

Investigation the UV Effect on Uranium Bioleaching Process in Acidithiobacillus sp FJ2 ‎and its Possible Consequences on the CoxB Gene Sequence ‎ [PDF]

Biological Journal of Microorganism, 2018
Introduction: The increasing use of uranium as a suitable source of energy in various industries has led to the depletion of high-grade uranium mines in different countries.
Roghayeh Jafarpoor, Faezeh Fatemi, Faramarz Mehrnejad, Akram Eidi   +3 more
doaj   +1 more source