Title:
METHOD FOR PREPARING ACETALDEHYDE FROM ACETYLENE UNDER CATALYSIS OF ZAPO MOLECULAR SIEVE
Document Type and Number:
WIPO Patent Application WO/2021/227875
Kind Code:
A1
Abstract:
Disclosed is a method for preparing acetaldehyde from acetylene under the catalysis of a ZAPO molecular sieve. The method comprises the steps of pre-heating an acetylene raw material gas and water, subjecting same to continuous hydration in a fluidized bed under the catalysis of the ZAPO molecular sieve to prepare acetaldehyde, and then subjecting same to separation, absorption and rectification to obtain an acetaldehyde product, wherein the catalyst can be continuously regenerated for use. The process of the present application is simple, stable and efficient, solves the problem of the dependence nature of the production of acetaldehyde by means of acetylene hydration on a mercury catalyst, avoids the harm caused by mercury to the human body and the environment, and has higher production and use values.
Inventors:
JIANG YIBO (CN)
YING YUFAN (CN)
LI ZHENG (CN)
YING YUFAN (CN)
LI ZHENG (CN)
Application Number:
PCT/CN2021/090604
Publication Date:
November 18, 2021
Filing Date:
April 28, 2021
Export Citation:
Assignee:
BOZUN INVESTMENT GROUP LTD (CN)
International Classes:
C07C45/26; C07C45/78; C07C45/81; C07C45/82; C07C47/06
Foreign References:
| CN111574344A | 2020-08-25 | |||
| CN108311174A | 2018-07-24 | |||
| CH644834A5 | 1984-08-31 |
Other References:
TEACHING AND RESEARCH GROUP OF BASIC ORGANIC SYNTHESIS, LANZHOU CHEMICAL ENGINEERING SCHOOL: "Process Flow for Acetylene in Liquid-Phase Hydration", FUNDAMENTALS OF ORGANIC SYNTHESIS TECHNOLOGY, VOLUME 2, 31 August 1962 (1962-08-31), CN, pages 40 - 47, XP009532123
CHEN, SHOUZHENG ET AL.: "Study of Metal, Aluminophosphate Molecular Sieve Catalyst-(II) ZAPO-5' Catalyst", JOURNAL OF FUJIAN NORMAL UNIVERSITY (NATURAL SCIENCE EDITION), vol. 7, no. 1, 28 February 1991 (1991-02-28), pages 45 - 49, XP055867524, ISSN: 1000-5277
CHEN, SHOUZHENG ET AL.: "Study of Metal, Aluminophosphate Molecular Sieve Catalyst-(II) ZAPO-5' Catalyst", JOURNAL OF FUJIAN NORMAL UNIVERSITY (NATURAL SCIENCE EDITION), vol. 7, no. 1, 28 February 1991 (1991-02-28), pages 45 - 49, XP055867524, ISSN: 1000-5277
Attorney, Agent or Firm:
BEIJING SUNHOPE INTELLECTUAL PROPERTY LTD. (CN)
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