| 摘要 |
The crystal size and shape of zeolite KL can be improved by forming the zeolite from a synthesis mixture in which the mo- lar ratio of K2O/SiO2 is 0.18 to 0.36, and in which the synthesis mixture comprises iron preferably in an amount such that the molar ratio of Fe/Al2O3 is at least 0.015.
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