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US3848006A Expired / Lapsed US ⏱️ 0.0 years remaining

Paraffin halogenation process

Assignee: Universal Oil Products Co
•
Filing: 1972-06-21
•
Granted: 1974-11-12
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Expires: 1992-06-21
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Abstract

Abstract 1. IN A PROCESS FOR THE THERMAL HALOGENATION OF A FEED STOCK CONTAINING A C9-C18 N-PARAFFIN BY REACTION, OF SAID FEED STOCK IN LIQUID PHASE WITH CHLORIDE OR BROMINE, WHEREIN CARBONYL- AND HYDROXYL-CONTAINING HYDROCARBONACEOUS COMPOUNDS FORMED BY AIR OXIDATION OF SAID PARAFFIN ARE PRESENT IN SAID FEED STOCK IN CONCENTRATION OF ABOUT 0.001 TO 1.0 WT. PERCENT, THE IMPROVEMENT WHICH COMPRISES REMOVING FROM SAID FEED STOCK, PRIOR TO SAID THERNAL HALOGENATION, AT LEAST A PORTION OF SAID CARBONYL- AND HYDROXYLCONTAINING COMPOUNDS BY CONTACT OF THE FEED STOCK WITH A SOLID SORBENT OF DEHYDRATED SILICA GEL OR ACTIVATED ALUMINA CAPABLE OF SELECTIVELY SORBING SAID COMPOUNDS FROM THE FEED STOCK, WHEREBY TO INCREASE THE RATE OF HALOGENATION OF SAID N-PARAFFIN.

Inventors

  • 👤 A Sparks

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-10-31 06:43
CPC Classifications
C; C07; C07C; C07C17/00; C07C17/093; C07C17/10; C07C7/00; C07C7/12

Claims Analysis

Total Claims: 2
Claim 1
Independent Claim 117 words
IN A PROCESS FOR THE THERMAL HALOGENATION OF A FEED STOCK CONTAINING A C9-C18 N-PARAFFIN BY REACTION, OF SAID FEED STOCK IN LIQUID PHASE WITH CHLORIDE OR BROMINE, WHEREIN CARBONYL- AND HYDROXYL-CONTAINING HYDROCARBONACEOUS COMPOUNDS FORMED BY AIR OXIDATION OF SAID PARAFFIN ARE PRESENT IN SAID FEED STOCK IN CONCENTRATION OF ABOUT 0.001 TO 1.0 WT. PERCENT, THE IMPROVEMENT WHICH COMPRISES REMOVING FROM SAID FEED STOCK, PRIOR TO SAID THERNAL HALOGENATION, AT LEAST A PORTION OF SAID CARBONYL- AND HYDROXYLCONTAINING COMPOUNDS BY CONTACT OF THE FEED STOCK WITH A SOLID SORBENT OF DEHYDRATED SILICA GEL OR ACTIVATED ALUMINA CAPABLE OF SELECTIVELY SORBING SAID COMPOUNDS FROM THE FEED STOCK, WHEREBY TO INCREASE THE RATE OF HALOGENATION OF SAID N-PARAFFIN.
Claim 2
Dependent Claim 117 words
IN A PROCESS FOR THE THERMAL HALOGENATION OF A FEED STOCK CONTAINING A C9-C18 N-PARAFFIN BY REACTION, OF SAID FEED STOCK IN LIQUID PHASE WITH CHLORIDE OR BROMINE, WHEREIN CARBONYL- AND HYDROXYL-CONTAINING HYDROCARBONACEOUS COMPOUNDS FORMED BY AIR OXIDATION OF SAID PARAFFIN ARE PRESENT IN SAID FEED STOCK IN CONCENTRATION OF ABOUT 0.001 TO 1.0 WT. PERCENT, THE IMPROVEMENT WHICH COMPRISES REMOVING FROM SAID FEED STOCK, PRIOR TO SAID THERNAL HALOGENATION, AT LEAST A PORTION OF SAID CARBONYL- AND HYDROXYLCONTAINING COMPOUNDS BY CONTACT OF THE FEED STOCK WITH A SOLID SORBENT OF DEHYDRATED SILICA GEL OR ACTIVATED ALUMINA CAPABLE OF SELECTIVELY SORBING SAID COMPOUNDS FROM THE FEED STOCK, WHEREBY TO INCREASE THE RATE OF HALOGENATION OF SAID N-PARAFFIN.

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) 1977-11-11 1978-05-13 1978-11-12 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1981-11-11 1982-05-13 1982-11-12 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1985-11-11 1986-05-13 1986-11-12 $7700.00 Window Closed / Lapsed

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