Process for the production of high pressure oxygen gas
US4345925A · kind A · utility
21Cited by
3References
7Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Nov 26, 1980 |
| Grant date | Aug 24, 1982 |
| Priority date | — |
| Expiry date | Nov 26, 2000 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S62/94
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
Oxygen gas is produced at greater than atmospheric pressure by separating air into oxygen-rich and nitrogen-rich fractions in a distillation column, removing the oxygen as liquid and pumping it to the desired pressure and subsequently vaporizing the pumped liquid oxygen by means of energy absorbed from a recirculation argon containing fluid.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.