Process and apparatus for purifying elemental sulfur carried in

Details Process and apparatus for purifying elemental sulfur carried in Process and apparatus for purifying elemental sulfur carried in

1989-09-26

1991-09-17

Russel, Jeffrey E.

Chemistry of inorganic compounds

Sulfur or compound thereof

Elemental sulfur

23293S, 4235762, C01B 17033, C01B 1705

Patent

active

050493701

ABSTRACT:
A cake containing sulfur and other materials in a base solvent, such as that resulting from a liquid redox hydrogen sulfide removal process, is purified to obtain elemental sulfur by preferential solubilization of the sulfur, employing a selected solvent immiscible with the base solvent at an elevated temperature less than that required to produce a phase change. The base and selected solvents are then separated, and the temperature of the sulfur solvent is lowered to recrystalize elemental sulfur.

REFERENCES:
patent: 3619147 (1971-11-01), Amano et al.

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