High-Yielded Side-Chain Alkylation from Toluene and Methanol Over K3PO4/CsX | Health & Environmental Research Online (HERO)

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HERO ID

4704916

Reference Type

Journal Article

Title

High-Yielded Side-Chain Alkylation from Toluene and Methanol Over K3PO4/CsX

Author(s)

Wang, H; Wang, Bin; Wen, Y; Huang, Wei

Year

2017

Is Peer Reviewed?

Yes

Journal

Catalysis Letters
ISSN: 1011-372X
EISSN: 1572-879X

Volume

147

Issue

Page Numbers

161-166

Language

English

DOI

10.1007/s10562-016-1911-6

Web of Science Id

WOS:000394139200017

URL

https://www.scopus.com/inward/record.uri?eid=2-s2.0-85011387381&doi=10.1007%2fs10562-016-1911-6&partnerID=40&md5=9718e5b5d94797f456f4e2e4eb93b6f4
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Abstract

Potassium phosphate supported on ion-exchanged CsX zeolite was prepared by impregnation method, and their performance was investigated for the side-chain alkylation of toluene with methanol. When K3PO4 was more than 5 wt%, the catalyst activity and selectivity of styrene and ethylbenzene were improved significantly. The conversion of methanol and selectivity of styrene and ethylbenzene reached 84.1 and 92.8% with K3PO4 loading of 7 wt%. It was concluded that moderate addition of K3PO4 decreased the amount of weak acid and increased the strength and amount of middle base sites. The base sites at 270-300 A degrees C (CO2-TPD) were favorable for this reaction.

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Keywords

Potassium phosphate; Side-chain alkyation; Middle strong base