ES229919A3 - A procedure and apparatus for separating air by low temperature rectification, to obtain oxygen, argon and nitrogen (Machine-translation by Google Translate, not legally binding) - Google Patents
A procedure and apparatus for separating air by low temperature rectification, to obtain oxygen, argon and nitrogen (Machine-translation by Google Translate, not legally binding)Info
- Publication number
- ES229919A3 ES229919A3 ES0229919A ES229919A ES229919A3 ES 229919 A3 ES229919 A3 ES 229919A3 ES 0229919 A ES0229919 A ES 0229919A ES 229919 A ES229919 A ES 229919A ES 229919 A3 ES229919 A3 ES 229919A3
- Authority
- ES
- Spain
- Prior art keywords
- argon
- rectification
- impurities
- air
- fraction
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
Landscapes
- Separation By Low-Temperature Treatments (AREA)
Abstract
Process for separating air by rectification at low temperature to obtain oxygen, argon and nitrogen, comprising compressing, cooling and drying air to remove substantially all moisture from it, further cooling and partial liquefaction of said air; purification of the cooled gas part of the air with the liquefied part to provide a gaseous fraction free of impurities and a fraction of liquid containing impurities; rectifying said gaseous fraction free of impurities to form an oxygen product of desired purity and a cold gaseous nitrogen product; withdrawal from a zone of the main rectification where the content of argon is high, of a vapor comprising mainly oxygen and argon; subjecting said steam to an auxiliary rectification by washing with a reflux liquid formed by partial steam liquefaction of said auxiliary rectification; said reflux producing by an exchange of heat between the steam of said auxiliary rectification and said liquid fraction containing impurities to vaporize substantially said fraction and forming a concentrate containing impurities; elimination of said concentrate; passing the vapors free of impurities from said vaporization to the main rectification; removal of an argon concentrate from said auxiliary rectification, and use, at least, of the nitrogen product to countercurrently cool the inlet air. (Machine-translation by Google Translate, not legally binding)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| ES0229919A ES229919A3 (en) | 1956-07-19 | 1956-07-19 | A procedure and apparatus for separating air by low temperature rectification, to obtain oxygen, argon and nitrogen (Machine-translation by Google Translate, not legally binding) |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| ES0229919A ES229919A3 (en) | 1956-07-19 | 1956-07-19 | A procedure and apparatus for separating air by low temperature rectification, to obtain oxygen, argon and nitrogen (Machine-translation by Google Translate, not legally binding) |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| ES229919A3 true ES229919A3 (en) | 1957-02-16 |
Family
ID=37844028
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| ES0229919A Expired ES229919A3 (en) | 1956-07-19 | 1956-07-19 | A procedure and apparatus for separating air by low temperature rectification, to obtain oxygen, argon and nitrogen (Machine-translation by Google Translate, not legally binding) |
Country Status (1)
| Country | Link |
|---|---|
| ES (1) | ES229919A3 (en) |
-
1956
- 1956-07-19 ES ES0229919A patent/ES229919A3/en not_active Expired
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