The uranium industry in Kazakhstan is not solely about the extraction of raw materials; it encompasses a complex network of enterprises that support the production process. One such enterprise is SKZ-U LLP, located in the Kyzylorda region, which specializes in the production of sulfuric acid, a critical technological reagent for uranium mining companies under Kazatomprom. As the national operator for the export and import of natural uranium and its compounds, Kazatomprom is the world’s largest producer of natural uranium, leveraging one of the largest resource bases in the industry.
Kazatomprom employs in-situ recovery technology, which allows for uranium extraction directly from the ore-bearing horizon. This method involves injecting special solutions through wells to convert uranium from minerals into a solution, which is then extracted. Sulfuric acid plays a vital role in this process, creating the necessary chemical conditions for uranium leaching. Therefore, the production of sulfuric acid at SKZ-U is integral to the uranium extraction process, ensuring a consistent supply for operations utilizing this technology.
Founded in 2007 with the participation of Kazatomprom, SAP-Japan Corporation, and UrAsia London Limited, SKZ-U began construction of its sulfuric acid plant in 2010, reaching a designed capacity of 500,000 tonnes per year. The plant commenced industrial operations in 2013 and has since maintained a production capacity of approximately 1,500 tonnes per day. The facility includes a sulfuric acid workshop, an energy complex, and infrastructure for employee accommodation, alongside initiatives for renewable energy generation.
The production process at SKZ-U is highly efficient, with a raw material conversion rate of 99.7%. The primary raw material, granulated sulfur, is sourced from Samruk-Kazyna Ondeu, which acquires it from Tengizchevroil. The manufacturing process involves several chemical transformations, ultimately producing sulfuric acid while simultaneously harnessing the heat generated for steam and electricity production. This dual approach not only meets industrial demands but also promotes energy efficiency.
Since 2013, SKZ-U has generated its own electricity, and in 2014, it established a solar power station with a capacity of 418 kW, aligning with Kazakhstan’s transition to a green economy. The plant employs 277 individuals, with a significant majority residing in the local area, reflecting the company’s commitment to regional development and social responsibility.
SKZ-U has implemented various social support initiatives, including special payments for employees working in hazardous conditions and health-related programs. The company also actively engages in community support, participating in charitable initiatives and providing assistance to vulnerable populations.
As SKZ-U continues to evolve, it has become a vital link in the broader industrial chain, integrating the oil and gas, chemical, energy, and uranium sectors. The company remains focused on ensuring stable production, product quality, and reliable supply for uranium mining enterprises while advancing technology, safety, and social infrastructure. This interconnectedness within the production chain is essential for the industrial resilience of Kazakhstan’s uranium sector.
