Method and installation for air distillation with production of argon
US6269659A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Feb 1, 2000 |
| Grant date | Aug 7, 2001 |
| Priority date | — |
| Expiry date | Feb 1, 2020 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S62/924
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A method for air distillation with production of argon using an air distilling installation (1) comprising an air distilling apparatus (2) in particular with double column, and at least one column for producing impure argon. The installation has dimensions for supplying argon with a nominal yield .rho..sub.n of argon extraction at the impure argon producing column output. For reduced argon production requirements corresponding to a required yield .rho. of argon extraction at the impure argon producing column output, with .rho..ltoreq..rho..sub.o.ltoreq..rho..sub.n where .rho..sub.o is a predetermined optimal yield, the argon extraction yield in the impure argon producing column is maintained at the value .rho..sub.o.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.