ANS is committed to advancing, fostering, and promoting the development and application of nuclear sciences and technologies to benefit society.
Explore the many uses for nuclear science and its impact on energy, the environment, healthcare, food, and more.
Division Spotlight
Robotics & Remote Systems
The Mission of the Robotics and Remote Systems Division is to promote the development and application of immersive simulation, robotics, and remote systems for hazardous environments for the purpose of reducing hazardous exposure to individuals, reducing environmental hazards and reducing the cost of performing work.
Meeting Spotlight
2024 ANS Winter Conference and Expo
November 17–21, 2024
Orlando, FL|Renaissance Orlando at SeaWorld
Standards Program
The Standards Committee is responsible for the development and maintenance of voluntary consensus standards that address the design, analysis, and operation of components, systems, and facilities related to the application of nuclear science and technology. Find out What’s New, check out the Standards Store, or Get Involved today!
Latest Magazine Issues
Aug 2024
Jan 2024
Latest Journal Issues
Nuclear Science and Engineering
October 2024
Nuclear Technology
Fusion Science and Technology
August 2024
Latest News
New laws offer nuclear industry incentives for existing power plant uprates
This year, the U.S. nuclear industry received a much-needed economic boost that could help preserve operating nuclear power plants and incentivize upgrades that extend their lifespan and power output.
Signed into law in 2022, the Inflation Reduction Act offers production tax credits (PTCs) for existing nuclear power plants and either PTCs or investment tax credits (ITCs) for new carbon-free generation. These credits could make power uprates—increasing the maximum power level at which a commercial plant may operate—a much more appealing option for utilities.
W. E. Keder, A. S. Wilson
Nuclear Science and Engineering | Volume 17 | Number 2 | October 1963 | Pages 287-297
Solvent Extraction Chemistry Symposium. Part II. | doi.org/10.13182/NSE63-A28891
Articles are hosted by Taylor and Francis Online.
The extraction of acids and of metals by solutions of long-chain alkyl amines can be described as a process of neutralization of the amine in the organic phase by acid extracted from the aqueous phase and of exchange of anions between the phases. A complete description of the equilibrium process should include identification of the extracted anions, measurements of the affinities of the various anions for the alkylammonium ions in the organic solutions, and the character of the bonding in which the anions take part. It should also include the roles played by the large excesses of acid which extract from the higher aqueous acid concentrations, the extracted water, and the organic diluent. In this paper affinities of tri-n-octylamine for various mineral acids and the extraction of stoichiometric excesses of these acids by tri-n-octylamine solutions are discussed. Analyses of water content of the amine solutions and proton magnetic resonance measurements are combined with those of excess acid to describe the amine solutions in equilibrium with concentrated acids. Amine concentration dependence of extraction, capacities of amine solutions for metals, and absorption spectra have been used to establish the identity of metal species which extract into alkyl ammonium solutions. The results obtained for extraction of various metals from several acid solutions are discussed, with emphasis on tetra- and hexavalent actinides.