Sop Production Line

Potassium sulfate is primarily used for potassium-loving, chlorine-intolerant crops such as tobacco, sugar beets, grapes, watermelons, potatoes, garlic, and tea. As a fertilizer, potassium sulfate can improve crop quality, such as enhancing the combustibility and color of tobacco and increasing the sweetness and vibrant color of berries and melons. It is widely used in the production of nitrogen, phosphorus, and potassium (N, P, K) compound fertilizers.

Based on the original Mannheim potassium sulfate production process in Germany, drawing on over a decade of experience in equipment manufacturing and production practices, this process has thoroughly studied its operating principles, improved the reactor structure and materials, and successfully addressed challenges such as corrosion of furnace internals and high-temperature resistance.

The hydrogen chloride absorption unit utilizes new materials and processes, improving absorption efficiency, ensuring uniform heating and complete reaction, and ensuring that the three wastes meet emission standards. Potassium Sulphate Plant maintenance costs have been reduced by 60%, energy consumption by 20%, and unit output has increased by approximately 20%, significantly benefiting manufacturers.

Sop Production Line Process Description

It is well-known as there are two kind of popular methods to be used to produce Potassium Sulphate Product, one is Double decomposition method, the reaction is not good, the product quality should be improved. Another method is the Mannheim furnace process, it is used widely. But there are some difficulties occurred during the production. VEST had made the necessary and important improvement and perfection on Potassium Sulphate Plant production equipment and production process of Mannheim furnace, to form a unique and perfect Potassium Sulphate production technology now.

Our improved process had been successfully applied in Philippines, Indonesia and Egypt, to be approved that our process and technology is excellent, gets the Customer’s credit, trust and satisfaction. Of course, VEST has been dedicating himself into building the best quality Potassium Sulphate Plant, to produce best quality final product.

The Sop Production Line process is showed as below: 

Using KCl (MOP, Potassium Chloride) reacts with Sulfuric Acid to produce K2SO4 (SOP, Potassium Sulphate) and HCl (Hydrochloric Acid) as a by-product, the reaction formula is showed as below:：

2 KCl + H2SO4 → K2SO4 + 2 HCl

The reaction of Sulfuric Acid with Potassium Chloride takes places in two stages:

a.  KCl + H2SO4   → KHSO4 + HCl

b.  KCl + KHSO4  → K2SO4 + HCl

The first reaction step is exothermic and proceeds at relatively low temperature. The second is endothermic and must be carried out at higher temperature. To minimize the Chloride content of the product, a small excess of Sulfuric Acid is used, which is later neutralized with Calcium Carbonate, depending on the purity requirements for the product.

The reaction is usually carried out in furnace which special designed by our company.

The furnace has a closed dish-shaped chamber, with diameter up to 6 m, heated externally by oil or gas burner. Potassium Chloride and Sulfuric Acid are fed into the chamber in the required ratio at an overhead central point. The mixture reacts with evolution of heat and it’s mixed by a slowly moving agitator fitted with central axle, the reacted material is ejected to next equipment from both side of furnace. Potassium Sulfate leaves the reaction chamber at this point and be neutralized and cooled. Hydrogen Chloride gas formed is absorbed in water to form Hydrochloric Acid.

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Potassium Sulphate(SOP) Production line Images

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