gaseous diffusion


Also found in: Wikipedia.

gaseous diffusion

[¦gash·əs di′fyü·zhən]
(chemical engineering)
Pressure-induced free-molecular transfer of gas through microporous barriers as in the process of making fissionable fuel.
Selective solubility diffusion of gas through nonporous polymers by absorption and solution of the gas in the polymer matrix.
References in periodicals archive ?
AREVA celebrated today at the Tricastin site in France the completion of the rinsing phase of the former gaseous diffusion enrichment facility, Eurodif, as part of its dismantling.
These include USW members at the K-25, Portsmouth and Paducah Gaseous Diffusion Plants, the Mound Plant and the Idaho National Laboratory (INL).
On the uppermost, ochre, part of "Nebula I," you may notice blotches of lighter shades, emphasizing an impression of gaseous diffusion -- a feature which is also common to scientific representations of some types of nebulae.
235]U that had been produced by the liquid and gaseous diffusion plants also located at Oak Ridge; Y-12 enriched this feed to 90% [.
Chapters cover sites in states across America such as China Lake Naval Weapons Center in California, Paducah Gaseous Diffusion Plant in Kentucky, Area 51 in Nevada, Green River Missile Launch Complex in Utah, and many more.
But it is now looking at major delays as a result of the colony of bats that is roosting inside the UK's first gaseous diffusion plant.
During World War II, he worked on the graveyard shift of the Manhattan Project's pilot plant for separation of uranium isotopes by gaseous diffusion.
USEC is in the process of demonstrating and deploying the American Centrifuge, which will replace its existing gaseous diffusion technology and is expected to be the world's most efficient uranium enrichment technology.
6 million contract to perform environmental remediation and waste management activities at the Energy Department's Paducah Gaseous Diffusion Plant in Paducah, KY.
He emphasizes modeling as an analysis tool in his examination of a wide range of topics in combustion, including chemical thermodynamics, chemical kinetics and reaction mechanics, conservation equations for multicomponent reacting systems, detonation and deflagration waves of premixed gases, premixed laminar flames, gaseous diffusion flames and combustion of a single liquid fuel droplet.
The preferred technology for virus concentration from large volumes was developed by the Joint NIH-AEC Zonal Centrifuge Development Project at the Oak Ridge National Laboratory, Oak Ridge, Tennessee, USA, and the Oak Ridge Gaseous Diffusion Plant in the 1960s (4).
At the time, there seemed to be three competing methods: gaseous diffusion, thermal separation, and electromagnetic separation.