Process for producing ultra high purity oxygen
US4615716A · kind A · utility
32Cited by
13References
13Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Aug 27, 1985 |
| Grant date | Oct 7, 1986 |
| Priority date | — |
| Expiry date | Aug 27, 2005 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S62/912
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A method of oxygen recycle on the bottom section of the low-pressure column of a dual-pressure column, with an increase in the bottom section reboil vapor rate, allows an appreciable increase in the production rate of ultra high purity oxygen and a substantial decrease in power required as compared to conventional processes.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.