Method and apparatus for melting sulfur in aqueous slurries

Details Method and apparatus for melting sulfur in aqueous slurries Method and apparatus for melting sulfur in aqueous slurries

C - Chemistry, Metallurgy

01

B

23/329, 23/385

C01B 17/027 (2006.01) B01J 6/00 (2006.01) C01B 17/02 (2006.01)

Patent

CA 1260230

- 9 - ABSTRACT "METHOD AND APPARATUS FOR MELTING SULFUR IN AQUEOUS SLURRIES" Method and apparatus for recovering sulfur from an aqueous slurry. The slurry is passed downwardly through a shell-and-tube heat exchanger having verti- cally arranged tubes, wherein it is heated sufficiently to melt the sulfur. The liquid mixture leaving the heat exchanger is discharged into a first separation zone, in which a phase separation between the lighter aqueous phase and the denser liquid sulfur occurs. The upper aqueous phase is then transported to an intermediate point in the height of a vertically elongated second separation zone, while the molten sulfur is transported from the lower end of the first separation zone to a point adjacent the lower end of said second separation zone, in which an interface between the phases is main- tained at a point below the entry point of the aqueous liquid phase into the second separation zone. The aqueous liquid is discharged from the top of the second separation zone, while molten sulfur is discharged from the bottom of said zone.

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