Title:
DIPHOSPHITE, PREPARATION METHOD THEREFOR AND USE THEREOF
Document Type and Number:
WIPO Patent Application WO/2022/041617
Kind Code:
A1
Abstract:
A diphosphite, a preparation method therefor and the use thereof. The diphosphite has a structure as represented by formula (I) in the description, and has a 3-(2-hydroxybenzene)pyridine-2-phenol unit, and can serve as a ligand of a transition metal, and a composition formed by the diphosphite has an excellent activity, selectivity, and stability during the hydroformylation reaction of an olefin; in addition, the metal/diphosphite composition can be used to prepare valeraldehyde using the cheap refinery C4 or coal chemical C4 as raw materials by means of the hydroformylation reaction, wherein the raw materials do not require advanced treatments and have a good tolerance to isobutene and butane.
Inventors:
WANG XINGYONG (CN)
FU SONGBAO (CN)
HOU ZHANGGUI (CN)
WU QING (CN)
CHEN HE (CN)
ZHANG HUI (CN)
LEI SHUAI (CN)
FU SONGBAO (CN)
HOU ZHANGGUI (CN)
WU QING (CN)
CHEN HE (CN)
ZHANG HUI (CN)
LEI SHUAI (CN)
Application Number:
PCT/CN2020/140750
Publication Date:
March 03, 2022
Filing Date:
December 29, 2020
Export Citation:
Assignee:
CNOOC OIL CORP (CN)
CNOOC OIL & PETROCHEMICALS CO LTD (CN)
CNOOC RES INSTITUTE OF REFINING AND PETROCHEMICALS BEIJING CO LTD (CN)
CNOOC HEAVY OIL PROCESSING ENGINEERING TECH RESEARCH CENTER QINGDAO CO LTD (CN)
CNOOC OIL & PETROCHEMICALS CO LTD (CN)
CNOOC RES INSTITUTE OF REFINING AND PETROCHEMICALS BEIJING CO LTD (CN)
CNOOC HEAVY OIL PROCESSING ENGINEERING TECH RESEARCH CENTER QINGDAO CO LTD (CN)
International Classes:
B01J31/18; C07F9/6574; B01J31/20; B01J31/22; C07C45/50; C07C47/02
Foreign References:
| CN112010906A | 2020-12-01 | |||
| CN104058944A | 2014-09-24 | |||
| CN101200476A | 2008-06-18 | |||
| CN103917547A | 2014-07-09 | |||
| CN109320555A | 2019-02-12 | |||
| CN1863595A | 2006-11-15 | |||
| US20020103375A1 | 2002-08-01 |
Attorney, Agent or Firm:
BEYOND ATTORNEYS AT LAW (CN)
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