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2008 Patents

Author： Time：2021-01-28 Click：

No. Patent Number Title of invention Date of Grant
1 ZL200610011662.4 Method for on-line modification of catalyst for methylating toluene to produce paraxylene 2008-6-4
2 ZL200610011664.3 Homogeneous temperature type catalyst for preparing dimethyl ether from methanol and use 2008-3-12

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