Phthalic Anhydride Plants for Sale

Used 25,000 TPY Phthalic Anhydride plant built by Balcke-Durr GmbH of Germany to use orthoxylene as raw material to produce phthalic anhydride flakes of purity up to 99.9%. The plant includes the process sections of oxidation, condensation, distillation, flaking and packing. The process uses BASF O4-66 catalyst which allows 100 g of orthoxylene / Nm3 air load.

The plant consists of 2 production lines. Line 1 has capacity of 30,000 TPY, Line 2 60,000 TPY. In addition, the plant makes 6,000 TPY of fumaric acid as a by-product. The production includes 4 main process sections: (a) oxidation (b) condensing (c) distillation (d) gas scrubbing. The two lines share distillation, flaking machine and fumaric acid tanks. Oxidation process unit was newly built in 1992; switch condenser was new in 1997. The operation can reach raw material and utility consumptions better than 0.901 ton of orthoxylene, 137,000 KWH and 2,910 ton of steam per ton of Phthalic Anhydride product. Purified Phthalic Anhydride product has the specifications: Purity > 99.5%; Crystallization point (or solidification) > 130.8 °C; Benzoic acid < 1000 ppm; Phthalide < 800 ppm.

Phoenix Equipment Corporation has this used 34,000 TPY Phthalic Anhydride plant immediately available. The process includes (1) oxidation of orthoxylene with oxygen (2) distillation of crude phthalic anhydride (3) washing of exhaust gases (4) incineration.

Phoenix Equipment Corporation has this used Phthalic Anhydride plant immediately available. The process of the PA production takes place in two tubular reactors and is based on the catalytic oxidation of orthoxylene with air oxygen. Mixture of hot air and orthoxylene is continuously added in reactor, where are installed ceramic rings covered with vanadium pentoxide, which catalyzes the reaction. Crude Phthalic anhydride is thermally treated and then led to the distillation into two columns. Cold gas, from which we excluded phthalic anhydride, is leaving the separator as a waste gas. The incinerator is equipped with a metering pump, metering nozzles, fans of the primary and secondary air, and two supporting burners on fuel oil.

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.