|
Ferric Alum
| Product Specifications: |
| Alumina Al2O3 (BIS:299-1980) |
15-16% |
| Insoluble Matter % by mass Max. |
0.5% |
| Soluble Iron Compounds (as Fe) % by mass
Max |
0.7% |
Water Soluble Aluminum Compounds (as Al2O3)
% by mass Min.
|
15% |
| Basicity (as Al2O3) % by mass Max. |
0.5% |
| Acidity (H2SO4) % by mass Max. |
0.5% |
| Lead by mass Max. |
40 ppm |
| Arsenic (as As2O3) by mass Max. |
8 ppm |
PROCESS DESCRIPTION
The Alum Plant consists of three sections:
1. Grinding Section
2. Digestion and Settling Section
3. Evaporation and Solidification Section
Dry Rock Bauxite lumps are crushed in a Jaw Crusher and subsequently
fed to a closed circuit grinding mill in which it is further
reduced in size. The ground bauxite is fed at a regulated
rate to digester containing sulphuric acid and water. The
Al2O3 in bauxite reacts with Sulphuric
Acid to form Aluminium Sulphate. The reacted mass is then
led to a series of settlers in which the unreacted particles
settle down. The liquor containing Aluminium Sulphate is evaporated
in steam heated evaporators where the liquor is concentrated
to final product containing 16-17% Al2O3.
The product is cooled in moulds
LIST OF EQUIPMENT
| 1. |
Belt Conveyors
|
| 2. |
Bucket Elevators |
| 3. |
Screw Conveyors |
| 4. |
Jaw Crusher |
| 5. |
Grinding Mill |
| 6. |
Weighing Machines |
| 7. |
Storage Tanks |
| 8. |
Digestor |
| 9. |
Settlers |
| 10. |
Evaporators |
| 11. |
Moulds |
| 12. |
Pumps |
| 13. |
Electricals |
| 14. |
Instruments |
| 15. |
Piping, Fittings. Valves etc. |
| 16. |
Structures |
Areas of Application
- Water purification and Sewage treatment
- Paper Industry
- Oil refineries and oil drillings
- Textiles
- Leather, tanning of skins/hides.
|
Production Capacity : 25 TPD
| Inputs |
|
Per ton of Product |
| a) Raw Material |
Bauxite
H2SO4(98.5%)
|
0.36 ton
0.5 ton |
| b) Utilities |
Power
Water
Steam
|
25 KWH
2.5 KL
1.5 ton |
| c) Required Area |
5,000 m2 |
|
Top |
Back
|
