SOP / K2SO4
Mannheim Oven
Best Process Know-how, Partners and Strategy for Successful Business
Process Description
cheminée
The process for the manufacture of Potassium Sulphate is based on following chemical reactions:
2 KCl + H2SO4 -> K2SO4 + 2 HCl
The process involves following main stages: Continuous reaction of Potassium Chloride and Sulphuric Acid in a vertical indirectly heated oven
equipped with a central mixing device. Potassium Sulphate produced is
neutralised with Calcium Carbonate, cooled and stored before conditioning.
Hydrochloric gas escaping from the oven is cooled down and absorbed into
washing towers. Hydrochloric acid is concentrated to 30-33%.
démister HCl
BAC H2SO4
tour HCl
entrée eau refroidissement
HCl
pompe doseuse H2SO4
HCl 31%
Vis d'introduction KCl
gaz chauds
refroidisseur HCl gaz
sortie eau
HCl gaz
TREMIE KCl
FOUR
Elévateur à godet
SULFATE
CaCO3
poudre
doseur KCl
Vis transport KCl
décharge K2SO4 vers stock
Capacity & Quality (see table)
groupe entrainement mélangeur
arrivée gaz naturel
foyer gaz chauds
Capacity as required by client.
Typically 10’000 MTPY per Mannheim Oven
Applications
∗ 91 % for Specialty fertilizers (non-grain uses, e.g., tobacco, citrus fruits,
grapes, potatoes),
∗ 8 % for Potassium supplement to animal feeds,
∗ 1 % for Industrial applications (accelerator in gypsum board, flash suppressant in explosives and pharmaceuticals)
Process Advantages and Features
Product Specification
Typical
K2O content
≥ 50.0%
-
Cl content
≤ 1.0%
Humidity
≤ 1.0%
Free acid（in H2SO4）
≤ 1.5%
Water in solution
≤ 1.0%
Particle size:
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Efficient and reliable technology
Low capital cost
Premium Product with Low chloride SOP <0.5% ClAccording to local conditions, HCl can be:
∗ Sold on local market
∗ Neutralized
∗ Further processed to CaCl2, DCP, PPA, TSP, PAC, FeCl3 or others
Scope of Supply & Services
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Project management
Pre-feasibility and feasibility study (bankable file)
Know-how, basic and detailed engineering
Start-up and commissioning
Personnel training
Equipment delivery
AD PROCESS STRATEGIES SARL
RUE CHAPOIERE 9
CH-1201 GEEVA
SWITZERLAD
eau refroidissement
3 %≥ 2mm
60%≤ 0.1 mm
Typical
Specific Consumptions
KCl (< 1mm) 97 % purity
0.870
T/T
H2SO4 98,5 %
0.575
T/T
CaCO3 (fine)
25
Kg/T
Electric Power
50 -70
KWh/T
Natural Gas
55 -65
Nm3 /T
Cooling Water (18°C)
©2009 AD Process Strategies SARL
We assume no responsibility for and give no guarantees, undertakings or warranties
concerning the accuracy, completeness or up to date nature of the information provided
on this document at the time and do not accept any liability whatsoever arising from any
errors or omissions.
90
m3 /T
Phone :
+41 22 548 12 49
Fax :
+41 22 545 75 12
Email : [email protected]
WWW : www.adpro-stg.com