US3243471A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Absorbent for the separation of olefins
Assignee: Pullman Inc
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Filing: 1965-01-27
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Granted: 1966-03-29
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Expires: 1985-01-27
Abstract
No abstract record available.
Inventors
- 👤 Eric W Stern
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 15:54
CPC Classifications
B; B01; B01J; B01J20/00; B01J20/02; B01J20/10; B01J20/0203; B01J20/0233; B01J20/0237; B01J20/0274; B01J20/0288; B01J20/28; B01J20/28054; B01J20/28057; B01J20/28064; B01J20/30; B01J20/3078; B01J20/32; B01J20/3202; B01J20/3204; B01J20/3231; B01J20/3234; B01J20/3236; C; C07; C07C; C07C7/00; C07C7/148; C07C7/152
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
142 words
A PROCESS FOR THE SEPARATION OF MONOOLEFINS FROM A MIXTURE CONTAINING THE SAME, WHICH COMPRISES CONTACTING SAID MIXTURE WITH A SORBENT CONSISTING OF CUPROUS HALIDE SUPPORTED ON SILICA IN THE VAPOR PHASE AT A TEMPERATURE BETWEEN ABOUT 40* AND ABOUT 200*F.,SAID CUPROUS HALIDE OR SILICA ABSORBING MONOOLEFIN FROM SAID MIXTURE, HEATING THE CUPROUS HALIDE ON SILICA CONTAINING SORBED MONOOLEFIN TO LIBERATE THE MONOOLEFIN ABSORBED THEREON, SAID CUPROUS HALIDE ON SILICA SORBENT HAVING A SURFACE AREA BETWEEN ABOUT 200 AND ABOUT 800 SQUARE METERS PER GRAM AND BEING PREPARED BY THE METHOD WHICH CONSISTS ESSENTIALLY OF DISSOLVING CUPROUS HALIDE IN A NORMALLY LIQUID ALIPHATIC MONOOLEFIN, APPLYING THE RESULTING SOLUTION TO SILICA HAVING A SURFACE AREA BETWEEN ABOUT 400 AND ABOUT 1000 SQUARE METERS PER GRAM AND HEATING THE RESULTING MIXTURE TO EVAPORATE SAID ALIPHATIC MONOOLEFIN AND DEPOSIT THE CUPROUS HALIDE ON SAID SILICA.
Claim 2
Dependent Claim
142 words
A PROCESS FOR THE SEPARATION OF MONOOLEFINS FROM A MIXTURE CONTAINING THE SAME, WHICH COMPRISES CONTACTING SAID MIXTURE WITH A SORBENT CONSISTING OF CUPROUS HALIDE SUPPORTED ON SILICA IN THE VAPOR PHASE AT A TEMPERATURE BETWEEN ABOUT 40* AND ABOUT 200*F.,SAID CUPROUS HALIDE OR SILICA ABSORBING MONOOLEFIN FROM SAID MIXTURE, HEATING THE CUPROUS HALIDE ON SILICA CONTAINING SORBED MONOOLEFIN TO LIBERATE THE MONOOLEFIN ABSORBED THEREON, SAID CUPROUS HALIDE ON SILICA SORBENT HAVING A SURFACE AREA BETWEEN ABOUT 200 AND ABOUT 800 SQUARE METERS PER GRAM AND BEING PREPARED BY THE METHOD WHICH CONSISTS ESSENTIALLY OF DISSOLVING CUPROUS HALIDE IN A NORMALLY LIQUID ALIPHATIC MONOOLEFIN, APPLYING THE RESULTING SOLUTION TO SILICA HAVING A SURFACE AREA BETWEEN ABOUT 400 AND ABOUT 1000 SQUARE METERS PER GRAM AND HEATING THE RESULTING MIXTURE TO EVAPORATE SAID ALIPHATIC MONOOLEFIN AND DEPOSIT THE CUPROUS HALIDE ON SAID SILICA.
Claim 3
Independent Claim
91 words
A METHOD FOR PREPARING A REAGENT COMPOSED OF CUPROUS HALIDE SUPPORTED ON SILICA FOR THE SEPARATION OF MONOOLEFINS FROM MIXTURES CONTAINING THE SAME, WHICH CONSISTS ESSENTIALLY OF DISSOLVING CUPROUS HALIDE IN A LOWBOILING MONOOLEFIN AS SOLVENT, APPLYING THE RESULTING SOLUTION TO SILICA HAVING A SURFACE AREA BETWEEN ABOUT 400 AND ABOUT 1000 SQUARE METERS PER GRAM, EVAPORATING SAID LOW BOILING MONOOLEFIN SOLVENT TO DEPOSIT CUPROUS HALIDE ON SAID SILICA, THE RESULTING CUPTOUS HALIDE SUPPORTED ON SILICA REAGENT HAVING A SURFACE AREA BETWEEN ABOUT 200 AND ABOUT 800 SQUARE METERS PER GRAM.
Claim 4
Independent Claim
91 words
A METHOD FOR PREPARING A REAGENT COMPOSED OF CUPROUS HALIDE SUPPORTED ON SILICA FOR THE SEPARATION OF MONOOLEFINS FROM MIXTURES CONTAINING THE SAME, WHICH CONSISTS ESSENTIALLY OF DISSOLVING CUPROUS HALIDE IN A LOWBOILING MONOOLEFIN AS SOLVENT, APPLYING THE RESULTING SOLUTION TO SILICA HAVING A SURFACE AREA BETWEEN ABOUT 400 AND ABOUT 1000 SQUARE METERS PER GRAM, EVAPORATING SAID LOW BOILING MONOOLEFIN SOLVENT TO DEPOSIT CUPROUS HALIDE ON SAID SILICA, THE RESULTING CUPTOUS HALIDE SUPPORTED ON SILICA REAGENT HAVING A SURFACE AREA BETWEEN ABOUT 200 AND ABOUT 800 SQUARE METERS PER GRAM.
Claim 5
Dependent Claim
116 words
A COMPOSITION CONSISTING OF CUPROUS HALIDE SUPPORTED ON SILICA CONTAINING BETWEEN ABOUT 3 AND ABOUT 8 WEIGHT PERCENT COPPER BASED ON THE TOTAL WEIGHT OF THE COMPOSITION AND HAVING A SURFACE AREA BETWEEN ABOUT 200 AND ABOUT 800 SQUARE METERS PER GRAM PREPARED BY THE METHOD WHICH CONSISTS ESSENTIALLY OF DISSOLVING CUPROUS HALIDE IN A MONOOLEFIN SOLVENT BOILING IN THE RANGE OF BETWEEN 20*F. AND ABOUT 200*F., APPLYING THE RESULTING SOLUTION TO SILICA HAVING A SURFACE AREA BETWEEN ABOUT 400 AND ABOUT 1OOO SQUARE METERS PER GRAM IN AN AMOUNT SUFFICIENT TO PROVIDE A COPPER CONTENT IN THE FINISHED COMPOSITION WITHIN THE AFORESAID AMOUNT, AND EVAPORATING SAID MONOOLEFIN SOLVENT TO DEPOSIT CUPROUS HALIDE ON SAID SILICA.
Claim 6
Dependent Claim
116 words
A COMPOSITION CONSISTING OF CUPROUS HALIDE SUPPORTED ON SILICA CONTAINING BETWEEN ABOUT 3 AND ABOUT 8 WEIGHT PERCENT COPPER BASED ON THE TOTAL WEIGHT OF THE COMPOSITION AND HAVING A SURFACE AREA BETWEEN ABOUT 200 AND ABOUT 800 SQUARE METERS PER GRAM PREPARED BY THE METHOD WHICH CONSISTS ESSENTIALLY OF DISSOLVING CUPROUS HALIDE IN A MONOOLEFIN SOLVENT BOILING IN THE RANGE OF BETWEEN 20*F. AND ABOUT 200*F., APPLYING THE RESULTING SOLUTION TO SILICA HAVING A SURFACE AREA BETWEEN ABOUT 400 AND ABOUT 1OOO SQUARE METERS PER GRAM IN AN AMOUNT SUFFICIENT TO PROVIDE A COPPER CONTENT IN THE FINISHED COMPOSITION WITHIN THE AFORESAID AMOUNT, AND EVAPORATING SAID MONOOLEFIN SOLVENT TO DEPOSIT CUPROUS HALIDE ON SAID SILICA.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-03-28 | 1969-09-27 | 1970-03-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-03-28 | 1973-09-27 | 1974-03-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-03-28 | 1977-09-27 | 1978-03-29 | $7700.00 | Window Closed / Lapsed |