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- W1498634639 abstract "Publisher Summary This chapter presents the shape-selective methylation of 4-methybiphenyl (4-MBP) into 4,4′- dimethybiphenyl (4,4′-DMBP) over modified ZSM-5 catalysts. A linear polycyclic compound, 4,4′-DMBP, is an intermediate for making the monomer of some advanced polymer materials. Modifications are made on a ZSM-5 zeolite for the selective methylation of 4-MBP to form 4,4'-DMBP. The use of binder, deposition of basic oxide, such as calcium oxide over zeolite internal and external surface, can effectively improve the product selectivity. An isomorphous substitution of ZSM-5 framework aluminum (Al) with iron (Fe) by a postsynthetic treatment, coupled with the modification of external and internal surface by phosphorus (P) or calcium (Ca) leads to high-performance catalyst with stable activity and superior selectivity for the synthesis of 4,4′-DMBP by 4-MBP methylation." @default.
- W1498634639 created "2016-06-24" @default.
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- W1498634639 date "2001-01-01" @default.
- W1498634639 modified "2023-09-27" @default.
- W1498634639 title "25-O-01 - Shape-selective methylation of 4-methybiphenyl into 4,4'-dimethybiphenyl over modified ZSM-5 catalysts" @default.
- W1498634639 doi "https://doi.org/10.1016/s0167-2991(01)81249-0" @default.
- W1498634639 hasPublicationYear "2001" @default.
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