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5177404 
Journal Article 
Effect of catalyst used on the rate of formation of high molecular weight aliphatic phthalates 
Kulawska, M 
2012 
1 
Przemysł Chemiczny
ISSN: 0033-2496 
91 
9 
1851-1853 
Polish 
WOS:000311924600048 
Phthalic anhydride was esterified with n-heptyl, n-nonyl and n-undecyl alcs. in presence of H(2)SO(4), H(3)PW(12)O(40)center dot xH(2)O or TiBu(4) catalysts (0.05-0.25% by mass) at 413 K to 453 K to det. the reaction kinetics. The 1st order reaction (except for TiBu(4)) was found. The TiBu(4) showed the lowest catalytic activity but the highest activation energy (149,2 kJ/mole). 
Engineering