Recovering nitrogen bases from a hydrosulfide/sulfur dioxide rem

Details Recovering nitrogen bases from a hydrosulfide/sulfur dioxide rem Recovering nitrogen bases from a hydrosulfide/sulfur dioxide rem

1980-06-17

1981-12-29

Thomas, Earl C.

Chemistry of inorganic compounds

Sulfur or compound thereof

Elemental sulfur

423228, 423234, 423242, 423356, 423567R, 423573G, 423575, 423 37FR, B01D 5334, C01B 1704

Patent

active

043082475

ABSTRACT:
A nitrogen base is separated from the sulfur-containing product of a gas phase reaction between a basic nitrogen compound and at least one of a hydrosulfide and sulfur dioxide by washing the product of the reaction, followed by basification and stripping of the wash liquid. In another embodiment, the nitrogen base is displaced from the sulfur-containing product with anhydrous ammonia.

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Environmental Engineering, Deskbook Issue of Chemical Engineering, Apr. 27, 1980, pp. 173-189.

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