In:
Angewandte Chemie, Wiley, Vol. 135, No. 50 ( 2023-12-11)
Abstract:
The development of energy‐saving technology for the efficient separation of olefin and paraffin is highly important for the chemical industry. Herein, we report a self‐assembled Fe 4 L 6 capsule containing a hydrophobic cavity, which can be used to encapsulate and separate propylene/propane. The successful encapsulation of propylene and propane by the Fe 4 L 6 cage in a water solution was documented by NMR spectroscopy. The binding constants K for the Fe 4 L 6 cage toward propylene and propane were determined to be (5.0±0.1)×10 3 M −1 and (2.1±0.7)×10 4 M −1 in D 2 O at 25 °C, respectively. Experiments and theoretical studies revealed that the cage exhibited multiple weak interactions with propylene and propane. The polymer‐grade propylene ( 〉 99.5 %) can be obtained from a mixture of propylene and propane by using the Fe 4 L 6 cage as a separation material in a U‐shaped glass tube. This work provides a new strategy for the separation of olefin/paraffin.
Type of Medium:
Online Resource
ISSN:
0044-8249
,
1521-3757
DOI:
10.1002/ange.v135.50
DOI:
10.1002/ange.202315020
Language:
English
Publisher:
Wiley
Publication Date:
2023
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