US3426094A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Preparation of unsaturated compounds
Assignee: Texas Petrochemicals Corp
•
Filing: 1963-03-05
•
Granted: 1969-02-04
•
Expires: 1983-03-05
Abstract
No abstract record available.
Inventors
- 👤 Olin C Karkalits Jr
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 23:51
CPC Classifications
C; C07; C07C; C07C11/00; C07C11/12; C07C11/16; C07C11/167; C07C5/00; C07C5/42; C07C5/48; C07C7/00; C07C7/11
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
129 words
A PROCESS FOR THE PURIFICATION OF A GASEOUS MIXTURE OF UNSATURATED ALIPHATIC HYDROCARBONS AT A TEMPERATURE OF AT LEAST 400*C. CONTAMINATED WITH INORGANIC HALOGEN WHICH COMPRISES: QUENCHING THE GASEOUS MIXTURE WITH AN AQUEOUS SOLVENT FOR THE INORGANIC HALOGEN; THEN PASSING THE GASEOUS QUENCHED MIXTURE THROUGH A PRESSURE DROP ZONE, SAID PRESSURE DROP ZONE HAVING A RESTRICTED CROSS SECTIONAL AREA; CONTACTING THE GASEOUS QUENCHED MIXTURE PASSING THROUGH THE RESTRICTED CROSS SECTIONAL AREA OF THE PRESSURE DROP ZONE WITH AN AQUEOUS CONTACTING LIQUID, THE PRESSURE DROP ACROSS THE RESTRICTED CROSS-SECTIONAL AREA BEING AT LEAST ABOUT 15 INCHES OF WATER; AND SEPARATING THE EXIT GASES FROM THE PRESSURE DROP ZONE INTO AN AQUEOUS LIQUID PHASE CONTAINING A SOLUTION OF THE INORGANIC HALOGEN, AND A GASEOUS PHASE COMPRISING THE PURIFIED UNSATURATED ALIPHATIC HYDROCARBONS.
Claim 2
Dependent Claim
129 words
A PROCESS FOR THE PURIFICATION OF A GASEOUS MIXTURE OF UNSATURATED ALIPHATIC HYDROCARBONS AT A TEMPERATURE OF AT LEAST 400*C. CONTAMINATED WITH INORGANIC HALOGEN WHICH COMPRISES: QUENCHING THE GASEOUS MIXTURE WITH AN AQUEOUS SOLVENT FOR THE INORGANIC HALOGEN; THEN PASSING THE GASEOUS QUENCHED MIXTURE THROUGH A PRESSURE DROP ZONE, SAID PRESSURE DROP ZONE HAVING A RESTRICTED CROSS SECTIONAL AREA; CONTACTING THE GASEOUS QUENCHED MIXTURE PASSING THROUGH THE RESTRICTED CROSS SECTIONAL AREA OF THE PRESSURE DROP ZONE WITH AN AQUEOUS CONTACTING LIQUID, THE PRESSURE DROP ACROSS THE RESTRICTED CROSS-SECTIONAL AREA BEING AT LEAST ABOUT 15 INCHES OF WATER; AND SEPARATING THE EXIT GASES FROM THE PRESSURE DROP ZONE INTO AN AQUEOUS LIQUID PHASE CONTAINING A SOLUTION OF THE INORGANIC HALOGEN, AND A GASEOUS PHASE COMPRISING THE PURIFIED UNSATURATED ALIPHATIC HYDROCARBONS.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-02-04 | 1972-08-05 | 1973-02-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-02-04 | 1976-08-05 | 1977-02-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-02-04 | 1980-08-05 | 1981-02-04 | $7700.00 | Window Closed / Lapsed |