Process for kinetic gas-solid chromatographic separations
US5069690A · kind A · utility
10Cited by
13References
18Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Feb 21, 1991 |
| Grant date | Dec 3, 1991 |
| Priority date | — |
| Expiry date | Feb 21, 2011 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S95/902
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A method is disclosed for the kinetic separation of gas mixtures using gas-solid chromatography. More specifically, a method is disclosed for the kinetically driven gas-solid chromatographic separation of NF.sub.3 from CF.sub.4 in significant volumes over a specific class of adsorbents to recover NF.sub.3 at high purities, such as 99.99% NF.sub.3.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.