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US3845121A Expired / Lapsed US ⏱️ 0.0 years remaining

Process for separating carbonylation products from reaction mixture without catalyst decomposition

Assignee: BP Chemicals Ltd
•
Filing: 1971-11-10
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Granted: 1974-10-29
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Expires: 1991-11-10
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Abstract

Abstract 1. IN A CARBONYLATION PROCESS WHEREIN AT LEAST ONE REACTANT SELECTED FROM THE GROUP CONSISTING OF AN OLEFIN, AN ALCOHOL, AN ESTER DERIVATIVE OF SAID ALCOHOL, A HALIDE DERIVATIVE OF SAID ALCOHOLAND AN ETHER DERIVATIVE OF SAID ALCOHOL IS REACTED WITH CARBON MONOXIDE IN A LIQUID PHASE IN A REACTION ZONE AND IN THE PRESENCE OF A CATALYST SYSTEM THAT CONTAINS (A) A RHODIUM OR IRIDIUM COMPONENT, AND (B) AN IODINE OR BROMINE COMPONENT, THE IMPROVEMENT WHICH COMPRISES PASSING AT LEAST A PORTION OF THE LIQUID REACTION MASS TO A SEPARATION ZONE WITHOUT THE ADDI TION OF HEAT, SAID SEPARATION ZONE HAVING A PRESSURE OF AT LEAST 20 P.S.I. LESS THAN THE PRESSURE IN SAID REACTION ZONE, TO VAPORIZE AT LEAT A PORTION OF THE CARBONYLATION PRODUCTS, WITHDRAWING THE VAPORIZED CARBONYLATION PRODUCTS AND RECYLING THE REMAINING LIQUID REACTION MASS TO SAID REACTION ZONE.

Inventors

  • 👤 L Eubanks
  • 👤 F Rosenberger
  • 👤 H Epstein
  • 👤 H Null
  • 👤 R Eby
  • 👤 C Cruse

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-10-27 15:15
CPC Classifications
B; B01; B01J; B01J31/00; B01J31/40; B01J31/4015; B01J31/4023; B01J31/4038; B01J31/4046; B01J31/02; B01J31/0231; B01J31/16; B01J31/20; C; C07; C07C; C07C51/00; C07C51/10; C07C51/12; C07C51/14; C07C67/00; C07C67/36; C07C67/37; C07C67/48; C07C67/52; C07C67/54; B01J2231/00; B01J2231/30; B01J2231/32; B01J2231/321; B01J2231/34; B01J2531/00; B01J2531/80; B01J2531/82; B01J2531/822; B01J2531/827; B01J27/00; B01J27/06; B01J27/08; Y; Y02; Y02P; Y02P20/00; Y02P20/50; Y02P20/584

Claims Analysis

Total Claims: 2
Claim 1
Independent Claim 142 words
IN A CARBONYLATION PROCESS WHEREIN AT LEAST ONE REACTANT SELECTED FROM THE GROUP CONSISTING OF AN OLEFIN, AN ALCOHOL, AN ESTER DERIVATIVE OF SAID ALCOHOL, A HALIDE DERIVATIVE OF SAID ALCOHOLAND AN ETHER DERIVATIVE OF SAID ALCOHOL IS REACTED WITH CARBON MONOXIDE IN A LIQUID PHASE IN A REACTION ZONE AND IN THE PRESENCE OF A CATALYST SYSTEM THAT CONTAINS (A) A RHODIUM OR IRIDIUM COMPONENT, AND (B) AN IODINE OR BROMINE COMPONENT, THE IMPROVEMENT WHICH COMPRISES PASSING AT LEAST A PORTION OF THE LIQUID REACTION MASS TO A SEPARATION ZONE WITHOUT THE ADDI TION OF HEAT, SAID SEPARATION ZONE HAVING A PRESSURE OF AT LEAST 20 P.S.I. LESS THAN THE PRESSURE IN SAID REACTION ZONE, TO VAPORIZE AT LEAT A PORTION OF THE CARBONYLATION PRODUCTS, WITHDRAWING THE VAPORIZED CARBONYLATION PRODUCTS AND RECYLING THE REMAINING LIQUID REACTION MASS TO SAID REACTION ZONE.
Claim 2
Dependent Claim 142 words
IN A CARBONYLATION PROCESS WHEREIN AT LEAST ONE REACTANT SELECTED FROM THE GROUP CONSISTING OF AN OLEFIN, AN ALCOHOL, AN ESTER DERIVATIVE OF SAID ALCOHOL, A HALIDE DERIVATIVE OF SAID ALCOHOLAND AN ETHER DERIVATIVE OF SAID ALCOHOL IS REACTED WITH CARBON MONOXIDE IN A LIQUID PHASE IN A REACTION ZONE AND IN THE PRESENCE OF A CATALYST SYSTEM THAT CONTAINS (A) A RHODIUM OR IRIDIUM COMPONENT, AND (B) AN IODINE OR BROMINE COMPONENT, THE IMPROVEMENT WHICH COMPRISES PASSING AT LEAST A PORTION OF THE LIQUID REACTION MASS TO A SEPARATION ZONE WITHOUT THE ADDI TION OF HEAT, SAID SEPARATION ZONE HAVING A PRESSURE OF AT LEAST 20 P.S.I. LESS THAN THE PRESSURE IN SAID REACTION ZONE, TO VAPORIZE AT LEAT A PORTION OF THE CARBONYLATION PRODUCTS, WITHDRAWING THE VAPORIZED CARBONYLATION PRODUCTS AND RECYLING THE REMAINING LIQUID REACTION MASS TO SAID REACTION ZONE.

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) 1977-10-28 1978-04-29 1978-10-29 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1981-10-28 1982-04-29 1982-10-29 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1985-10-28 1986-04-29 1986-10-29 $7700.00 Window Closed / Lapsed

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