| 摘要 |
A process for the isomerization of xylenes utilizes a ZSM-23 zeolite which inhibits the production of undesired C9<+> aromatic transalkylation by-products. The ZSM-23 has pores substantially unobstructed by silica, such as can be made from a forming mixture containing amorphous precipitated silica as a silica source. |
