Title:
METHOD AND APPARATUS FOR SEQUESTERING ENTRAINED AND VOLATILE CATALYST SPECIES IN CARBONYLATION PROCESS
Document Type and Number:
Japanese Patent JP2012006963
Kind Code:
A
Abstract:
To provide a method for sequestering volatile catalyst species in a carbonylation process.
A method and apparatus includes contacting the product stream with a vinyl pyridine or a vinyl pyrrolidone resin bed which is operative to sequester entrained or volatile catalytic species. The invention is particularly useful in connection with the iridium catalyzed carbonylation of methanol wherein the loss of entrained or volatile catalyst species depletes the catalytic content of the reactor. The resin may be digested in order to recover the catalytic metals.
Inventors:
CHEUNG HUNG-CHEUN
SANTILLAN VALERIE
SCATES MARK O
SIBREL ELAINE C
TORRENCE G PAULL
SANTILLAN VALERIE
SCATES MARK O
SIBREL ELAINE C
TORRENCE G PAULL
Application Number:
JP2011180493A
Publication Date:
January 12, 2012
Filing Date:
August 22, 2011
Export Citation:
Assignee:
CELANESE INTERNATL CORP
International Classes:
C07C51/12; B01J31/02; C07B61/00; C07C51/47; C07C53/08
Domestic Patent References:
| JPH07324055A | 1995-12-12 | |||
| JPS63162044A | 1988-07-05 | |||
| JPS53101310A | 1978-09-04 | |||
| JPH07309800A | 1995-11-28 | |||
| JPH06315636A | 1994-11-15 | |||
| JPH06315637A | 1994-11-15 | |||
| JPH08501017A | 1996-02-06 |
Attorney, Agent or Firm:
Shinjiro Ono
Yasushi Kobayashi
Akio Chiba
Hiroyuki Tomita
Go Kajita
Yasushi Kobayashi
Akio Chiba
Hiroyuki Tomita
Go Kajita
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