Patent US2835554A successfully refreshed from Google Patents.
US2835554A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Utilization of anhydrous aluminum chloride sludge
Assignee: Gulf Research and Development Co
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Filing: 1954-12-23
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Granted: 1958-05-20
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Expires: 1974-12-23
Abstract
No abstract record available.
Inventors
- 👤 William A Pardee
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 15:03
CPC Classifications
C; C01; C01F; C01F7/00; C01F7/48; C01F7/56; C01F7/58; C01F7/60
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
167 words
THE PROCESS OF MANUFACTURING ANHYDROUS ALUMINUM CHLORIDE WHICH COMPRISES: CHARGING ALUMINOUS ORE TO A HEATED HORIZONTAL ROTARY KILN, ROTATING THE KILN AND THEREBY TUMBLING THE SAID ORE AND CAUSING IT TO TRAVEL LONGITUDINALLY THROUGH THE SAID KILN, APPLYING A SMALL PERCENTAGE OF LIQUEFIED ALUMINUM CHLORIDE SLUDGE TO THE ALUMINOUS ORE AT A POINT NEAR THE CHARGING END OF THE SAID KILN, MAINTAINING THE TEMPERATURE IN THE SAID KILN WITHIN A RANGE THAT WILL CARBONIZE THE APPLIED SLUDGE, CARBONIZING THE APPLIED SMALL PERCENTAGE OF SLUDGE, SUCCESSIVELY APPLYING AND CARBONIZING ADDITIONAL SMALL PERCENTAGES OF ALUMINUM CHLORIDE SLUDGE WITH THE SAID ORE DURING ITS LONGITUDINAL PASSAGE THROUGH THE SAID KILN, DISCHARGING FROM THE KILN AN AGGREGATE OF FULLY CARBONIZED ALUMINUM CHLORIDE SLUDGE AND ALUMINOUS MATERIAL, CHARGING THE SAID AGGREGATE TO A RETORT AT A TEMPERATURE BETWEEN 1000*F. AND 1500*F. AND THERE REACTING THE HOT AGGREGATE WITH CHLORINE GAS, THEREBY PRODUCING VAPORS OF ANHYDROUS ALUMINUM CHLORIDE; COOLING AND CONDENSING THE VAPORS OF ANHYDROUS ALUMINUM CHLORIDE AND SO SEPARATELY OBTAINING THE SAME.
Claim 2
Dependent Claim
167 words
THE PROCESS OF MANUFACTURING ANHYDROUS ALUMINUM CHLORIDE WHICH COMPRISES: CHARGING ALUMINOUS ORE TO A HEATED HORIZONTAL ROTARY KILN, ROTATING THE KILN AND THEREBY TUMBLING THE SAID ORE AND CAUSING IT TO TRAVEL LONGITUDINALLY THROUGH THE SAID KILN, APPLYING A SMALL PERCENTAGE OF LIQUEFIED ALUMINUM CHLORIDE SLUDGE TO THE ALUMINOUS ORE AT A POINT NEAR THE CHARGING END OF THE SAID KILN, MAINTAINING THE TEMPERATURE IN THE SAID KILN WITHIN A RANGE THAT WILL CARBONIZE THE APPLIED SLUDGE, CARBONIZING THE APPLIED SMALL PERCENTAGE OF SLUDGE, SUCCESSIVELY APPLYING AND CARBONIZING ADDITIONAL SMALL PERCENTAGES OF ALUMINUM CHLORIDE SLUDGE WITH THE SAID ORE DURING ITS LONGITUDINAL PASSAGE THROUGH THE SAID KILN, DISCHARGING FROM THE KILN AN AGGREGATE OF FULLY CARBONIZED ALUMINUM CHLORIDE SLUDGE AND ALUMINOUS MATERIAL, CHARGING THE SAID AGGREGATE TO A RETORT AT A TEMPERATURE BETWEEN 1000*F. AND 1500*F. AND THERE REACTING THE HOT AGGREGATE WITH CHLORINE GAS, THEREBY PRODUCING VAPORS OF ANHYDROUS ALUMINUM CHLORIDE; COOLING AND CONDENSING THE VAPORS OF ANHYDROUS ALUMINUM CHLORIDE AND SO SEPARATELY OBTAINING THE SAME.
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) | 1961-05-19 | 1961-11-18 | 1962-05-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-05-19 | 1965-11-18 | 1966-05-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-05-19 | 1969-11-18 | 1970-05-20 | $7700.00 | Window Closed / Lapsed |