Dispersion and decomposition of KNO3 on KL zeolite can create strong b
asic sites upon calcination at 600 degrees C, and their basic strength
can reach H- = 27.0 which is the characteristic of a solid superbase.
The resulting catalyst showed a high catalytic activity for the isome
rization of cis-but-2-ene at 0 degrees C. (C) 1997 Elsevier Science B.
V.