. . . and most of it will be made from o-xylene
Phthalic anhydride output will grow little this year... 1100
Production, millions of pounds
1000
Feedstock
900
Phthalic Phthalic anhydride anhydride produccapacity 1 tion1 ( m i l l i o n s of p o u n d s per y e a r )
Coal tar naphthalene Petronaphthaiene o-Xylene rOTAL
800 700. 600
240 170 715 1125
220 150 680 1050
a 1974 d a t a .
0 1965
66
67
68
69
70
71
72
73. j
a C&EN estimate. Source: Tariff Commission
; ',
