US Patent No: 7,321,072
Number of patents in Portfolio can not be more than 2000
Process for producing paraxylene by methylating toluene with methanol at a low contacting time
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Jan 22, 2008
Issued date -
Feb 18, 2004
filing date -
10/545,770
serial no -
Expired
status
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Abstract
A process for producing para-xylene by the selective methylation of toluene comprising contacting a reactant mixture comprising toluene, methanol and added water, with an oxide modified ZSM-5 zeolite catalyst in a flow reactor in conditions selected to limit coke formation on the catalyst and at a contact time, between reactant mixture and catalyst, of less than 1 second.
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First Claim
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International Classification(s)
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Cited Art
| Patent Info | (Count) | # Cites | Year |
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| 4,250,345 Selective production of para-xylene | 24 | 1978 | |
| 5,939,597 Fluid bed process for para-xylene production | 27 | 1997 | |
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| 4,377,718 Process for producing p-xylene | 19 | 1981 | |
Patent Citation Ranking
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