Patent ID: 7052669
Filing Date: 2006-05-30
Classification: C01B

Abstract:
1. A process for continuous production of ammonium thiosulphate, (NH 4 ) 2 S 2 O 3 (ATS) from NH 3 , H 2 S and SO 2 comprising steps of: (a) partial condensation in a partial condenser of a first gaseous or partial liquid feed stream comprising H (b) passing the aqueous condensate comprising NH (c) passing the gas stream comprising NH (d) passing a second feed gas stream comprising approximately ⅔ mole SO (e) passing the aqueous solution produced in mixing device to the SO (f) passing the off gas from the absorber to the aerosol filter; and (g) adding to the aerosol filter a balance amount of water required for obtaining approximately 40–65 wt % (NH