Title:
LANTHANUM OXYCARBONATE CATALYST, PREPARATION METHOD THEREFOR AND USE THEREOF
Document Type and Number:
WIPO Patent Application WO/2024/067658
Kind Code:
A1
Abstract:
The present invention relates to the technical field of lanthanum oxycarbonate. Disclosed are a lanthanum oxycarbonate catalyst, a preparation method therefor and a use thereof. The lanthanum oxycarbonate catalyst comprises hexagonal crystal phase lanthanum oxycarbonate and hexagonal crystal phase lanthanum oxycarbonate containing a doping element R. The method comprises: (1) adding alkali liquor into a lanthanum source solution, and then performing solid-liquid separation and drying to obtain lanthanum hydroxide; (2) enabling the solution of a compound containing the doping element R to be in contact with lanthanum hydroxide, and then drying; and (3) roasting the dried product in Step (2) in a carbon-containing atmosphere to obtain the lanthanum oxycarbonate catalyst. The catalyst prepared in the present invention has a relatively high yield of C2 hydrocarbons when being used for an oxidative coupling reaction of methane.
Inventors:
WU JIEHUA (CN)
XUE WEI (CN)
MAN YI (CN)
FENG YINGJIE (CN)
LIU DONGBING (CN)
ZHANG MINGSEN (CN)
XUE WEI (CN)
MAN YI (CN)
FENG YINGJIE (CN)
LIU DONGBING (CN)
ZHANG MINGSEN (CN)
Application Number:
PCT/CN2023/121840
Publication Date:
April 04, 2024
Filing Date:
September 27, 2023
Export Citation:
Assignee:
CHINA PETROLEUM & CHEM CORP (CN)
SINOPEC BEIJING RES INSTITUTE OF CHEMICAL INDUSTRY CO LTD (CN)
SINOPEC BEIJING RES INSTITUTE OF CHEMICAL INDUSTRY CO LTD (CN)
International Classes:
B01J27/232; C07C2/84
Foreign References:
| CN113797949A | 2021-12-17 | |||
| CN101619212A | 2010-01-06 | |||
| CN113797951A | 2021-12-17 | |||
| RU2286847C1 | 2006-11-10 | |||
| CN113321233A | 2021-08-31 | |||
| US10322409B1 | 2019-06-18 |
Attorney, Agent or Firm:
CHINA PATENT AGENT (H.K.) LTD. (CN)
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