Phoenix Equipment Corporation has this used Phthalic Anhydride plant immediately available. The Phthalic Anhydride Unit consists of three basic areas: oxidation, purification, and utilities. The oxidation area, where the crude Phthalic Anhydride is produced, includes the following equipment: compressors, reactors, switch condensers, circulating oil system and tail gas incinerators. The purification area, where the crude PA is purified to 99.8% assay, consists of decomposers, distillation columns, a separate hot oil system and a distillation incinerator. In addition, there is a large utility system within the unit consisting of various heat exchangers, steam drums and boiler feed water equipment to produce 650#, 450#, 150# and 30# steam. The reaction of orthoxylene to Phthalic Anhydride is highly exothermic and heat is removed from the reactor in two ways: (1) by 450# steam generated at the reactor and (2) by an increase in temperature of the air stream going through the reactor.