Sciencemadness Discussion Board
Not logged in [Login ]
Go To Bottom

Printable Version  
Author: Subject: Ammonium Sulphate
technologist
Harmless
*




Posts: 21
Registered: 1-6-2006
Member Is Offline

Mood: No Mood

[*] posted on 6-6-2006 at 01:57
Ammonium Sulphate


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

____________________________________
Visit my Blog - http://profmaster.blogspot.com
View user's profile Visit user's homepage View All Posts By User
chromium
Hazard to Others
***




Posts: 284
Registered: 27-6-2005
Member Is Offline

Mood: reactive

[*] posted on 6-6-2006 at 02:01


Sell it as fertilizer.
View user's profile View All Posts By User
neutrino
International Hazard
*****




Posts: 1583
Registered: 20-8-2004
Location: USA
Member Is Offline

Mood: oscillating

[*] posted on 6-6-2006 at 06:00


You could always heat it:

(NH<sub>4</sub>;)<sub>2</sub>SO<sub>4</sub> --heat---> NH<sub>3</sub> + NH<sub>4</sub>HSO<sub>4</sub>

That's halfway there. You could decompose it further, but temperatures that high would probably be uneconomical.




View user's profile View All Posts By User
chemoleo
Biochemicus Energeticus
*****




Posts: 3005
Registered: 23-7-2003
Location: England Germany
Member Is Offline

Mood: crystalline

[*] posted on 6-6-2006 at 17:33


Tsts, neutrino, but how would you seperate the acid from the ammonia? It's something I wondered many a time... and the only thing I can think of is some separation of mass at high heat, i.e. while the AS is still in the form of NH3, H2O and SO3. Probably would work through ionisation, similar to a mass spectrometer.
I can't see an easy method though.

[Edited on 7-6-2006 by chemoleo]




Never Stop to Begin, and Never Begin to Stop...
Tolerance is good. But not with the intolerant! (Wilhelm Busch)
View user's profile View All Posts By User
MadHatter
International Hazard
*****




Posts: 1332
Registered: 9-7-2004
Location: Maine
Member Is Offline

Mood: Enjoying retirement

[*] posted on 6-6-2006 at 18:46
Electrolysis


Electrolysis with the separation of the anode and cathode products may be useful. There
is a similar method in industry using a membrane, or bridge for the home chemist, used to
separate sodium chloride. Collecting the ammonia at the cathode could be a problem.
There may not be an easy or feasible solution depending on what you want to achieve.
I offer it only as a possibility.




From opening of NCIS New Orleans - It goes a BOOM ! BOOM ! BOOM ! MUHAHAHAHAHAHAHA !
View user's profile View All Posts By User
technologist
Harmless
*




Posts: 21
Registered: 1-6-2006
Member Is Offline

Mood: No Mood

[*] posted on 7-6-2006 at 04:17


Hey Guys,
I am looking for a commercial process not Academic info from Literature or a process which is not feasible beyond lab.

___________________________________
Visit my Blog - http://profmaster.blogspot.com
View user's profile Visit user's homepage View All Posts By User
stoichiometric_steve
National Hazard
****




Posts: 819
Registered: 14-12-2005
Member Is Offline

Mood: satyric

[*] posted on 7-6-2006 at 04:36


Quote:
Originally posted by technologist
Hey Guys,
I am looking for a commercial process not Academic info from Literature or a process which is not feasible beyond lab.


very grateful we are, huh?
spoonfeeders unite!
View user's profile View All Posts By User

  Go To Top