公开(公告)号：US4179272A

公开(公告)日：1979-12-18

申请号：US820621

申请日：1977-08-01

Applicant: Bennett Kivel

Inventor： Bennett Kivel

IPC: B01D59/34 ,  B01J19/12 ,  B01J1/10 ,  B01D1/00

CPC classification number: B01J19/121 ,  B01D59/34

Abstract: Method and apparatus for inhibiting dimer formation of molecules of a selected isotope type in a cooled flow of gas to enhance the effectiveness of mass difference isotope separation techniques. Molecules in the flow containing atoms of the selected isotope type are selectively excited by infrared radiation in order to inhibit the formation of dimers and larger clusters of such molecules, while the molecules not containing atoms of the selected, excited type are encouraged to form dimers and higher order aggregates by the cooling of the gaseous flow. The molecules with the excited isotope will predominate in monomers and will constitute the enriched product stream, while the aggregated group comprising molecules having the unexcited isotope will predominate in dimers and larger clusters of molecules, forming the tails stream. The difference in diffusion coefficients between particles of the excited and unexcited isotopes is enhanced by the greater mass differences resulting from aggregation of unexcited particles into dimers and larger clusters. Prior art separation techniques which exploit differences in isotopic diffusion rates will consequently exhibit enhanced enrichment per stage by the utilization of the present invention.

Abstract translation: 用于在冷却的气体流中抑制所选同位素型分子的二聚体形成的方法和装置，以提高质量差异同位素分离技术的有效性。 包含所选同位素类型的原子的流动分子被红外辐射选择性地激发，以便抑制二聚体和这种分子的较大簇的形成，而不包含所选激发型的原子的分子被形成二聚体 通过气流的冷却使高阶聚集。 具有激发的同位素的分子将在单体中占优势，并且将构成富集的产物流，而包含具有未刺激同位素的分子的聚集基团将以二聚体和更大的分子簇为主，形成尾流。 激发和未激发的同位素的颗粒之间的扩散系数的差异通过由未激发的颗粒聚集成二聚体和较大的簇而产生的更大的质量差异增强。 因此利用同位素扩散速率差异的现有技术的分离技术因此通过利用本发明显示每阶段的增强的富集。