Results 51 to 60 of about 3,063,485 (230)

An imidazole-based covalent-organic framework enabling a super-efficiency in sunlight-driven uranium extraction from seawater. [PDF]

open access: yesChem Sci
Uranium extraction from seawater represents an effective way to solve the difficulty of the insufficient uranium supply chain. However, this route is still restricted by the low extraction efficiency of reported adsorbents.
Zhong L, Feng X, Zhang Q, Xie X, Luo F.
europepmc   +2 more sources

Carbamoylalkylphosphonates Type Ligand for Uranium Extraction from Phosphates Ores

open access: yes, 2016
Carbamoylphosphonic acid and carbamoylphosphonate ligands have been synthesized and studied for uranium extraction from phosphates ores. From a structure-selectivity approach, the molecular design of such ligands was optimized leading to a specific one ...
Pellet-Rostaing, S   +7 more
core   +1 more source

Kinetics and Mechanism of Uranium Extraction in High-chloride Waste Acid

open access: yesYuanzineng kexue jishu
To address the critical challenges of intense uranium/iron extraction competition and low mass transfer efficiency caused by the high chloride and high acidity characteristics of zirconium smelting waste acid, this study established a binary extraction ...
LIANG Gengyu, LIU Kang, CHENG Hao, WANG Guishuo, LIU Huiwu
doaj   +1 more source

The Preparation of a Polyamidoxime–Phosphorylated Cellulose Nanofibrils Composite Aerogel for the Selective Extraction of Uranium from Seawater

open access: yesNanomaterials
Uranium is the most important fuel for nuclear power operations, and the safe supply of its resources is the key to the development of nuclear power in China. Because of the complex seawater environment and extremely low uranium concentration, extracting
Xiaoying Yang   +3 more
doaj   +1 more source

A marine bacteria-inspired electrochemical regulation for continuous uranium extraction from seawater and salt lake brine. [PDF]

open access: yesChem Sci
Oceans and salt lakes contain vast amounts of uranium. Uranium recovery from natural water not only copes with radioactive pollution in water but also can sustain the fuel supply for nuclear power.
Yang L   +9 more
europepmc   +2 more sources

USE OF MEMBRANE EMULSION SPAN 80 AND TOPO IN URANIUM EXTRACTION AND STRIPPING

open access: yesUrania, 2017
USE OF MEMBRANE EMULSION SPAN 80 AND TOPO IN URANIUM EXTRACTION AND STRIPPING. Membrane emulsion span 80 and TOPO used in uranium extraction and stripping has been done. The extraction was carried outby emulsion membrane H3PO4 in TOPO-Kerosene.
Kris Tri Basuki   +3 more
doaj   +1 more source

Cesty uranu

open access: yes, 2023
Title in English: Pathways of uranium: or when a geologist meets a chemist at the "Geobarr" The photographic publication presents selected results of the GeoBarr project - it presents uranium from the geological macroscale, such as its extraction at the ...
Kubeš, Martin   +5 more
core  

Determination of uranium content in phosphate ores using different measurement techniques

open access: yesJournal of King Saud University: Engineering Sciences, 2016
The most important unconventional source of uranium is found in phosphate deposits; unfortunately, nowadays its exploitation is limited by economic constraints.
Mohammad A. Al-Eshaikh   +2 more
doaj   +1 more source

The Behavior of Uranium in the Extraction with Benzyldodecylamine

open access: yesNippon kagaku zassi, 1961
アミン類は選択性の面で他の溶媒とくらべてすぐれているため,ウランの抽出に広く使用されている。このうちペンジル基をもつ第ニアミン類は高い抽出力をもち着目されているが,こめ種のアミン類による抽出の基礎が明らかでない。したがってベンジルドデシルアミンを使ってウランの抽出挙動および抽出機構を調べた。硫酸ナトリウム0.1~1.0mol/l,酸性度0.1~1.0Nの広い範囲でウランは1:1硫酸錯塩の形で実質上完全に有機層に抽出され,有機層内では抽出された硫酸ウラニル1分子についてベンジルドデシルアミンの4個が配位する。
openaire   +2 more sources

The study of change in extraction degree under the influence of oxidizers while leaching Uranium ore with sulfuric acid

open access: yesВестник КазНУ. Серия математика, механика, информатика, 2017
Sulfuric acid is extensively used in uranium production with In-Situ Leaching method. The influence of various components on the extraction degree has to be studied in order to optimize the solution spending and extraction degree of uranium.
M. B. Kurmanseiit   +2 more
doaj  

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