The Institute of General and Inorganic Chemistry offers customers a Technology for the production of potassium sulfate and NKS-type complex fertilizers from potassium chloride and ammonium sulfate under a commercial agreement with technical assistance and/or a licensing agreement and is looking for partners to conclude a technical cooperation agreement.

Potash sulfate (K₂SO₄) and NKS-type complex fertilizers (containing nitrogen, potassium, and sulfur) are produced from potassium chloride using various technologies, including chemical precipitation, exchange reactions, and waste recycling. These fertilizers are in demand in agriculture due to their high efficiency and the absence of chlorine, making them suitable for sensitive crops.

Major global manufacturers of potassium sulfate and NKS-type fertilizers:

1. K+S Kali GmbH (Germany)
- Features: One of the largest producers of potash fertilizers, including potassium sulfate and complex fertilizers with added sulfur.
2. Tessenderlo Group (Belgium)
- Features: Manufacturer of potassium sulfate and other fertilizers focused on environmentally friendly agriculture.
3. Haifa Chemicals (Israel)
- Features: The company offers a wide range of fertilizers, including potassium sulfate and NKS fertilizers for various crops.
4. Compass Minerals (USA)
- Key Features: Manufacturer of potassium sulfate and other potash fertilizers for agriculture.
5. SQM (Sociedad Química y Minera de Chile) (Chile)
- Key Features: The company specializes in the production of potassium sulfate and other fertilizers for sensitive crops.
6. Arab Potash Company (Jordan)
- Key Features: Manufacturer of potash fertilizers, including potassium sulfate, using natural resources from the Dead Sea.
7. Sinochem Group (China)
- Key Features: One of the largest fertilizer producers in China, including NKS-type complex fertilizers.

The Institute of General and Inorganic Chemistry has developed a low-waste technology for the production of potassium sulfate and chlorine-free complex fertilizers. This technology enables the production of potassium sulfate with an active substance content of 93–95%, an insoluble residue of 0.1–0.5%, and a fraction content of 0.1 mm, no more than 30%.

This information is published in the Catalogue "Advanced Developments of the National Academy of Sciences of Belarus." 2024, pp. 126-127.

Advantages of the technology: using domestic raw materials, producing a chlorine-free potassium fertilizer for vegetable and potato growing.
The technology is world-class and comparable to foreign analogues.

The Institute of General and Inorganic Chemistry completed a research and development project titled "Develop a technology for producing potassium sulfate from ammonium chloride using byproducts as NKS or NKPS-type complex fertilizers and produce a pilot batch of the product."
The results were used in the development of the technology.

The Institute of General and Inorganic Chemistry is a leading scientific institution conducting research in the field of chemistry.

The Institute's main areas of activity are:

Development of technologies for processing polymineral potassium and phosphate ores, conversion methods for producing potassium sulfate, beneficiation technologies for sylvinite ores, and improvement of the quality of mineral fertilizers. Development of initial data and justification of technological approaches for organizing new mining and processing facilities. Engineering support for technological projects to create new large-scale facilities for processing mineral salts and their byproducts.

Validation of technologies for the production of new forms of mineral fertilizers, including complex fertilizers containing microelements and plant growth stimulants. Development of modifying additives and hydrophobic compositions for the agglomeration of finely dispersed chemical products, and technologies for producing granulated materials by pelletizing and pressing.

Control of structure formation processes, thermodynamic and aggregative stability of oil and organomineral dispersions using chemical reagents, with the goal of creating new effective modifiers and composite materials for use in energy- and resource-saving technologies in civil engineering, road construction, and the oil refining industry.

Creation of new inorganic adsorbents, catalytically active and membrane materials for water treatment and purification of process liquids, and new composite and hybrid bioinorganic materials.

Adsorption surface modification, flocculation, and stabilization in heterogeneous salt dispersion systems using water-soluble polymers in mineral ore processing, water purification, and water treatment; development of inorganic coagulant and polymer flocculant compositions for wastewater treatment and dewatering of clay-salt dispersions.

Development of new chemical additives – plasticizers, water repellents, sealants, waterproofing, and anticorrosive materials for concrete and metal structures. Creation of new paints and varnishes (water-based, powder, heat-resistant, superhydrophobic, and superhydrophilic), and corrosion-protective coatings.

Official website of the Institute of General and Inorganic Chemistry.

Consumers interested in purchasing the NKS-type technology for producing potassium sulfate and complex fertilizers from potassium chloride and ammonium sulfate under a commercial agreement with technical assistance and/or a license agreement.

Partners interested in developing and implementing the NKS-type technology for producing potassium sulfate and complex fertilizers from potassium chloride and ammonium sulfate under a technical cooperation agreement.