US3165453A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of concentrating aqueous hci by vaporization, combined with partial condensation and absorption
Assignee: Diamond Shamrock Corp
•
Filing: 1959-07-20
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Granted: 1965-01-12
•
Expires: 1979-07-20
Abstract
No abstract record available.
Inventors
- 👤 Robert C Sutter
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 06:23
CPC Classifications
C; C01; C01B; C01B7/00; C01B7/01
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
137 words
A METHOD FOR CONCENTRATING AQUEOUS HYDROCHLORIC ACID OF A CONCENTRATION GREATER THAN 13* BE''. WHICH INCLUDES THE STEPS OF: (A) SPLITTING A BODY OF LIQUID AQUEOUS HYDROCHLORIC ACID HAVING A HYDROGEN CHLORIDE CONTENT GREATER THAN THAT EQUIVALENT TO 13* BE''. INTO TWO PORTIONS. (B) HEATING THE FIRST OF SAID PORTIONS TO FORM A FIRST VAPOR MIXTURE OF HYDROGEN CHLORIDE AND WATER, AND LIQUID HYDROCHLORIC ACID HAVING A HYDROGEN CHLORIDE CONTENT SUBSTANTIALLY EQUIVALENT TO 13* BE''.; (C) PASSING SAID FIRST VAPOR MIXTURE TO A CONDENSER WHEREIN IT IS COOLED TO A TEMPERATURE SUFFICIENTLY LOW TO SEPARATE A LIQUID AQUEOUS HYDROCHLORIC ACID PHASE AND A SECOND VAPOR MIXTURE OF HYDROGEN CHLORIDE AND WATER; (D) PASSING SAID SECOND VAPOR MIXTURE TO THE SECOND PORTION OF AQUEOUS HYDROCHLORIC ACID FROM STEP (A) AND ABSORBING IT THEREIN AT A TEMPERATURE BELOW THE
Claim 2
Independent Claim
137 words
A METHOD FOR CONCENTRATING AQUEOUS HYDROCHLORIC ACID OF A CONCENTRATION GREATER THAN 13* BE''. WHICH INCLUDES THE STEPS OF: (A) SPLITTING A BODY OF LIQUID AQUEOUS HYDROCHLORIC ACID HAVING A HYDROGEN CHLORIDE CONTENT GREATER THAN THAT EQUIVALENT TO 13* BE''. INTO TWO PORTIONS. (B) HEATING THE FIRST OF SAID PORTIONS TO FORM A FIRST VAPOR MIXTURE OF HYDROGEN CHLORIDE AND WATER, AND LIQUID HYDROCHLORIC ACID HAVING A HYDROGEN CHLORIDE CONTENT SUBSTANTIALLY EQUIVALENT TO 13* BE''.; (C) PASSING SAID FIRST VAPOR MIXTURE TO A CONDENSER WHEREIN IT IS COOLED TO A TEMPERATURE SUFFICIENTLY LOW TO SEPARATE A LIQUID AQUEOUS HYDROCHLORIC ACID PHASE AND A SECOND VAPOR MIXTURE OF HYDROGEN CHLORIDE AND WATER; (D) PASSING SAID SECOND VAPOR MIXTURE TO THE SECOND PORTION OF AQUEOUS HYDROCHLORIC ACID FROM STEP (A) AND ABSORBING IT THEREIN AT A TEMPERATURE BELOW THE
References Cited (Backward Citations)
CA586845A
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US1398224A
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-01-12 | 1968-07-13 | 1969-01-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-01-12 | 1972-07-13 | 1973-01-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-01-12 | 1976-07-13 | 1977-01-12 | $7700.00 | Window Closed / Lapsed |