Patent US3210158A successfully refreshed from Google Patents.
US3210158A
Expired / Lapsed
US
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Process for the production of chlorine
Assignee: Shell USA Inc
•
Filing: 1961-01-17
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Granted: 1965-10-05
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Expires: 1981-01-17
Abstract
No abstract record available.
Inventors
- 👤 Willem F Engel
- 👤 Wattimena Freddy
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 14:39
CPC Classifications
C; C01; C01B; C01B7/00; C01B7/01; C01B7/03; C01B7/04; B; B01; B01J; B01J27/00; B01J27/06; B01J27/08; B01J27/122
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
107 words
THE PROCESS FOR THE PRODUCTION OF CHLORINE WHICH COMPRISES CONTACTING HYDROGEN CHLORIDE IN ADMIXTURE WITH AN OXYGEN-CONTAINING GAS, AT A TEMPERATURE OF FROM ABOUT 300 TO ABOUT 425*C., WITH A CATALYST COMPOSITION CONSISTING OF: (A) COPPER CHLORIDE IN ADMIXTURE WITH (B) A LANTHANIDE CHLORIDE; (C) AN ALKALI METAL CHLORIDE, AND (D) SILICA GEL; SAID COPPER CHLORIDE AND LANTHANIDE CHLORIDE COMPONENTS EACH CONSTITUTING FROM ABOUT 1 TO ABOUT 20% BY WEIGHT OF SAID TOTAL CATALYST COMPOSITION CALCULATED AS UNCOMBINED COPPER AND LANTHANIDE METAL RESPECTIVELY, AND THE ATOMIC RATIO OF ALKALI METAL TO COPPER IN SAID CATALYST COMPOSITION IS IN THE RANGE OF FROM ABOUT 0.6 TO ABOUT 3.
Claim 2
Dependent Claim
107 words
THE PROCESS FOR THE PRODUCTION OF CHLORINE WHICH COMPRISES CONTACTING HYDROGEN CHLORIDE IN ADMIXTURE WITH AN OXYGEN-CONTAINING GAS, AT A TEMPERATURE OF FROM ABOUT 300 TO ABOUT 425*C., WITH A CATALYST COMPOSITION CONSISTING OF: (A) COPPER CHLORIDE IN ADMIXTURE WITH (B) A LANTHANIDE CHLORIDE; (C) AN ALKALI METAL CHLORIDE, AND (D) SILICA GEL; SAID COPPER CHLORIDE AND LANTHANIDE CHLORIDE COMPONENTS EACH CONSTITUTING FROM ABOUT 1 TO ABOUT 20% BY WEIGHT OF SAID TOTAL CATALYST COMPOSITION CALCULATED AS UNCOMBINED COPPER AND LANTHANIDE METAL RESPECTIVELY, AND THE ATOMIC RATIO OF ALKALI METAL TO COPPER IN SAID CATALYST COMPOSITION IS IN THE RANGE OF FROM ABOUT 0.6 TO ABOUT 3.
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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) | 1968-10-04 | 1969-04-05 | 1969-10-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-10-04 | 1973-04-05 | 1973-10-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-10-04 | 1977-04-05 | 1977-10-05 | $7700.00 | Window Closed / Lapsed |