Invention Grant
- Patent Title: Method for producing carbonyl compound
- Patent Title (中): 羰基化合物的制备方法
-
Application No.: US14896286Application Date: 2014-06-03
-
Publication No.: US09440902B2Publication Date: 2016-09-13
- Inventor: Zhixiong You , Yoichi Umehara , Tetsuro Matsumura , Takeshi Minami
- Applicant: CHIYODA CORPORATION
- Applicant Address: JP Yokohama-shi
- Assignee: CHIYODA CORPORATION
- Current Assignee: CHIYODA CORPORATION
- Current Assignee Address: JP Yokohama-shi
- Agency: Westerman, Hattori, Daniels & Adrian, LLP
- Priority: JP2013-119046 20130605
- International Application: PCT/JP2014/002944 WO 20140603
- International Announcement: WO2014/196190 WO 20141211
- Main IPC: C07C51/12
- IPC: C07C51/12 ; B01J31/18

Abstract:
To provide a production method for suppressing the reduction in production rate of a carbonyl compound due to transferring a noble metal component into liquid phase. A method for producing a carbonyl compound, including: a reaction step of reacting a carbonylation raw material with CO in liquid phase including a solid catalyst having noble metal complex on a resin carrier containing quaternized nitrogen to produce a carbonyl compound; a distillation step of distilling a reaction product liquid to recover gas phase distillate including the carbonyl compound; and a circulation step of circulating a bottom product from the distillation to reaction step. After part of the bottom product contacts with an acidic cation-exchange resin to remove nitrogen compound, liquid having higher moisture concentration than the bottom product contacts with the resin to extract noble metal complex captured by oligomer adsorbing the resin, and the complex is returned to the reaction step.
Public/Granted literature
- US20160130207A1 METHOD FOR PRODUCING CARBONYL COMPOUND Public/Granted day:2016-05-12
Information query