Isomerization of polymethylbenzenes
Abstract
Abstract NON-EQUILIBRIUM MIXTURES OF POLYMETHYLBENZENES SUCH AS ORTHO-, NETA-, AND PARAXYLENE, ETHYLBENZENE, THE TRIMETHYLBENZENES AND THE TETRAMETHYLBENZENES, AND THE LIKE ARE ISOMERIZED BY CONTACTING THEM IN THE VAPOR PHASE WITH A CATALYST COMPRISING A NOBLE METAL ON A CRYSTALLINE ALUMINO-SILICATE BASE SUCH AS H2CAK2NA2AL2SI6O17.5H2O, OR THE SYNTHETIC CRYSTALLINE ALUMINOSILICATE HAVING A COMPOSITION EXPRESSED IN TERMS OF MOL RATIOS OF OXIDES, AS FOLLOWS; 1.0$0.1((1-X)K2O:(X)(N(CH3)4)2O). AL2O3:6.5$1.0OSI2:YH2O WHEREIN X HAS A VALUE OF FROM ABOUT 0.001 TO ABOUT 0.2, AND Y HAS A VALUE FROM 0 TO ABOUT 10, SAID ZEOLITE BASE BEING IN THE FORM OF THE CORRESPONDING HYDROGEN ZEOLITE WHICH IS IMPREGNATED OR EXCHANGED WITH A SUFFICIENT AMOUNT OF AN AQUEOUS SOLUTION OF SEPCIFIC NOBLE METAL ISOMERIZATION COMPONENT TO FORM A CATALYST ON DRYING.
Inventors
- 👤 R Wesselhoft
- 👤 E Wadley
- 👤 G Hamner
Bibliographic Details
Claims Analysis
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