Title:
TITANIUM SILICALITE MOLECULAR SIEVE HAVING HIERARCHICAL-PORE STRUCTURE AND PREPARATION THEREFOR AND USE THEREOF
Document Type and Number:
WIPO Patent Application WO/2024/088373
Kind Code:
A1
Abstract:
A titanium silicalite molecular sieve having a hierarchical-pore structure. Peaks of the 1H MAS NMR spectrum of the titanium silicalite molecular sieve in a chemical shift range of 1-6 ppm are subjected to peak fitting to obtain five peaks having peak positions corresponding to chemical shifts of 1.8±0.1 ppm, 2.2±0.1 ppm, 2.8±0.1 ppm, 3.8±0.1 ppm and 4.6±0.1 ppm respectively, and the peak area of each peak satisfies a specific proportional relationship. The molecular sieve has a significantly enhanced anti-deactivation property, and can significantly improve the conversion rate of cyclohexanone oxime and the selectivity of caprolactam when the molecular sieve is used in a gas-phase Beckmann rearrangement reaction of cyclohexanone oxime.
Inventors:
XIA CHANGJIU (CN)
ZHANG PENG (CN)
PENG XINXIN (CN)
XING ENHUI (CN)
ZHANG XIAOXIN (CN)
LUO YIBIN (CN)
LIN MIN (CN)
ZHU BIN (CN)
SHU XINGTIAN (CN)
ZHANG PENG (CN)
PENG XINXIN (CN)
XING ENHUI (CN)
ZHANG XIAOXIN (CN)
LUO YIBIN (CN)
LIN MIN (CN)
ZHU BIN (CN)
SHU XINGTIAN (CN)
Application Number:
PCT/CN2023/127042
Publication Date:
May 02, 2024
Filing Date:
October 27, 2023
Export Citation:
Assignee:
CHINA PETROLEUM & CHEM CORP (CN)
SINOPEC RES INSTITUTE OF PETROLEUM PROCESSING CO LTD (CN)
SINOPEC RES INSTITUTE OF PETROLEUM PROCESSING CO LTD (CN)
International Classes:
C01B39/08; B01J29/89; C07C249/04
Attorney, Agent or Firm:
CHINA PATENT AGENT (H.K.) LTD. (CN)
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