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[pawan]

I have a process to recover H2SO4 from spent acid dillute stream in any
industry, which is finally converted to Ammonium Sulphate efficiently
without much operating cost.

This Ammonium sulphate is anhydrous.


Now I am looking for either converting it back to conc. H2SO4 & recycle ammonia.

OR use it for further value addition.


Any suggestion is welcome

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[sgkim]

Hi, Pawan

It does not seem economical to recover sufuric acid and ammonia from anhydrous (NH4)2SO4 even if it is possible. Ammonium sulfate could be used as a fertilizer for plants but it tends to acidify the soils.

You'd better, instead, recover concentrated sulfuric acid from the spent acid recovery system. Probably, low-concentration sulfuric acid could be distilled in a glass-lined stills to get higher concentration acids.

sgkim