J. Danforth, John H. Roberts
1968
Citations
0
Influential Citations
5
Citations
Journal
Journal of Catalysis
Abstract
The isopropyl alcoholate of tris(triphenylsiloxy)aluminum, [(C6H5)3SiO]3Al · 3 iso-C3H7OH, evolves alcohol, propylene, and benzene as it is heated to 350°. The polyphenylaluminoxosiloxane which is formed retains about two-thirds of the phenyl groups. This material is not active for cumene dealkylation. When it is treated with small amounts of water there is formed one mole of benzene per mole of water and it becomes very active for cumene dealkylation. An apparatus which has been called a twin tube injector was developed for the study of the volatile products formed on heating the catalyst and for determining the activity of the catalyst after any thermal or chemical pretreatment.