Selective synthesis of epichlorohydrin: Via liquid-phase allyl chloride epoxidation over a modified Ti-MWW zeolite in a continuous slurry bed reactor

Luoyi Ding; Jinpeng Yin; Wen Tong; Rusi Peng; Jingang Jiang; Hao Xu; Peng Wu

doi:10.1039/d0nj04491a

Selective synthesis of epichlorohydrin: Via liquid-phase allyl chloride epoxidation over a modified Ti-MWW zeolite in a continuous slurry bed reactor

Luoyi Ding
, Jinpeng Yin
, Wen Tong
, Rusi Peng
, Jingang Jiang
, Hao Xu^*
, Peng Wu^*

^*Corresponding author for this work

School of Chemistry and Molecular Engineering

East China Normal University

Research output: Contribution to journal › Article › peer-review

13 Scopus citations

Abstract

The epoxidation of allyl chloride (ALC) to epichlorohydrin (ECH) with H2O2 using a piperidine (PI)-modified Ti-MWW catalyst (Ti-MWW-PI) in a continuous slurry reactor was investigated to develop an efficient reaction system for the corresponding industrial process. The reaction parameters, including solvent, reaction temperature, t-butanol/ALC mass ratio, ALC/H2O2 molar ratio, weight hourly space velocity of H2O2, and the addition amount of ammonia, were studied in detail to pursue high H2O2 conversion and ECH selectivity. A long catalytic lifetime of 244 h was achieved at high H2O2 conversion (>97.0%) and ECH selectivity (>99.8%) under optimized reaction conditions. The crystallinity was well maintained for the deactivated Ti-MWW-PI catalyst, which was regenerated by a combination of calcination and piperidine treatment.

Original language	English
Pages (from-to)	331-342
Number of pages	12
Journal	New Journal of Chemistry
Volume	45
Issue number	1
DOIs	https://doi.org/10.1039/d0nj04491a
State	Published - 7 Jan 2021

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title = "Selective synthesis of epichlorohydrin: Via liquid-phase allyl chloride epoxidation over a modified Ti-MWW zeolite in a continuous slurry bed reactor",

abstract = "The epoxidation of allyl chloride (ALC) to epichlorohydrin (ECH) with H2O2 using a piperidine (PI)-modified Ti-MWW catalyst (Ti-MWW-PI) in a continuous slurry reactor was investigated to develop an efficient reaction system for the corresponding industrial process. The reaction parameters, including solvent, reaction temperature, t-butanol/ALC mass ratio, ALC/H2O2 molar ratio, weight hourly space velocity of H2O2, and the addition amount of ammonia, were studied in detail to pursue high H2O2 conversion and ECH selectivity. A long catalytic lifetime of 244 h was achieved at high H2O2 conversion (>97.0\%) and ECH selectivity (>99.8\%) under optimized reaction conditions. The crystallinity was well maintained for the deactivated Ti-MWW-PI catalyst, which was regenerated by a combination of calcination and piperidine treatment.",

author = "Luoyi Ding and Jinpeng Yin and Wen Tong and Rusi Peng and Jingang Jiang and Hao Xu and Peng Wu",

note = "Publisher Copyright: {\textcopyright} The Royal Society of Chemistry and the Centre National de la Recherche Scientifique.",

year = "2021",

month = jan,

day = "7",

doi = "10.1039/d0nj04491a",

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volume = "45",

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journal = "New Journal of Chemistry",

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TY - JOUR

T1 - Selective synthesis of epichlorohydrin

T2 - Via liquid-phase allyl chloride epoxidation over a modified Ti-MWW zeolite in a continuous slurry bed reactor

AU - Ding, Luoyi

AU - Yin, Jinpeng

AU - Tong, Wen

AU - Peng, Rusi

AU - Jiang, Jingang

AU - Xu, Hao

AU - Wu, Peng

PY - 2021/1/7

Y1 - 2021/1/7

N2 - The epoxidation of allyl chloride (ALC) to epichlorohydrin (ECH) with H2O2 using a piperidine (PI)-modified Ti-MWW catalyst (Ti-MWW-PI) in a continuous slurry reactor was investigated to develop an efficient reaction system for the corresponding industrial process. The reaction parameters, including solvent, reaction temperature, t-butanol/ALC mass ratio, ALC/H2O2 molar ratio, weight hourly space velocity of H2O2, and the addition amount of ammonia, were studied in detail to pursue high H2O2 conversion and ECH selectivity. A long catalytic lifetime of 244 h was achieved at high H2O2 conversion (>97.0%) and ECH selectivity (>99.8%) under optimized reaction conditions. The crystallinity was well maintained for the deactivated Ti-MWW-PI catalyst, which was regenerated by a combination of calcination and piperidine treatment.

AB - The epoxidation of allyl chloride (ALC) to epichlorohydrin (ECH) with H2O2 using a piperidine (PI)-modified Ti-MWW catalyst (Ti-MWW-PI) in a continuous slurry reactor was investigated to develop an efficient reaction system for the corresponding industrial process. The reaction parameters, including solvent, reaction temperature, t-butanol/ALC mass ratio, ALC/H2O2 molar ratio, weight hourly space velocity of H2O2, and the addition amount of ammonia, were studied in detail to pursue high H2O2 conversion and ECH selectivity. A long catalytic lifetime of 244 h was achieved at high H2O2 conversion (>97.0%) and ECH selectivity (>99.8%) under optimized reaction conditions. The crystallinity was well maintained for the deactivated Ti-MWW-PI catalyst, which was regenerated by a combination of calcination and piperidine treatment.

UR - https://www.scopus.com/pages/publications/85098912809

U2 - 10.1039/d0nj04491a

DO - 10.1039/d0nj04491a

M3 - 文章

AN - SCOPUS:85098912809

SN - 1144-0546

VL - 45

SP - 331

EP - 342

JO - New Journal of Chemistry

JF - New Journal of Chemistry

IS - 1

ER -

Selective synthesis of epichlorohydrin: Via liquid-phase allyl chloride epoxidation over a modified Ti-MWW zeolite in a continuous slurry bed reactor

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