期刊
COMPTES RENDUS CHIMIE
卷 25, 期 -, 页码 5-26出版社
ACAD SCIENCES
DOI: 10.5802/crchim.149
关键词
Isobutene; Zeolites; Acid catalysis; Prins condensation; Etherification; Alkylation
This review focuses on the application of zeolite catalysts in isobutene reactions, including Prins condensation, isobutene dimerization, isobutene etherification, isobutene amination, and phenol tert-butylation. The mechanisms of these reactions, the role of zeolite catalysts, and the influence of topology/active sites on product selectivity are explored.
Isobutene (IB), the most reactive molecule in the C4 raffinate, is a raw material of great industrial significance. It is extensively used in the manufacturing process of rubber, fuel additives, fine chemicals, agricultural chemicals, plastics and antioxidants. Heterogeneous catalysts and par-ticularly zeolites are playing a major role in these applications. The aim of this review is to examine the relevant processes involving IB as reagent and zeolites as acid catalysts. The following reactions are successively covered: Prins condensation, IB dimerization, IB-methanol/ethanol etherification, IB-glycerol etherification, IB amination, and phenol tert-butylation. While reasonably comprehen-sive and broad, the present survey is not necessarily exhaustive. The mechanistic aspects of the titled reactions, the role of zeolite catalysts and their topology/active sites on the product selectivity are mainly explored.
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