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Silica‐Immobilized Chromium Colloids for Cyclohexane Autoxidation
Author(s) -
Breynaert Eric,
Hermans Ive,
Lambie Bert,
Maes Guido,
Peeters Jozef,
Maes André,
Jacobs Pierre
Publication year - 2006
Publication title -
angewandte chemie international edition
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 5.831
H-Index - 550
eISSN - 1521-3773
pISSN - 1433-7851
DOI - 10.1002/anie.200602736
Subject(s) - autoxidation , chromium , cyclohexane , colloid , chemistry , chemical engineering , organic chemistry , engineering
In a stable condition : Oxyhydroxide colloids of chromium deposited on silica gel are selective, stable catalysts for the autoxidation of cyclohexane (CyH). The Cr III colloids, generated in situ, are immobilized by a column precipitation chromatographic technique (see picture). An increased yield of cyclohexanone (QO) is obtained.