Kazakh scientists say they have tested a method for recovering lithium from low-grade ore, a development that fits into the country’s wider effort to build a role in critical minerals processing.
The Ministry of Industry and Construction described the work as an innovative technology for processing lithium-bearing aluminosilicate ores. These ores contain lithium, but in relatively low concentrations, meaning the challenge is not only mining the metal, but separating it economically.
Lithium is used in rechargeable batteries, including for electric vehicles and energy storage systems. Demand for lithium and other critical minerals has risen with the expansion of clean-energy technologies, while governments are paying closer attention to where these materials are mined and processed. The United Nations has warned that rising demand for energy-transition minerals brings risks, including environmental damage and unequal distribution of benefits, if extraction and processing are not properly managed.
The Kazakh announcement centers on carbothermic smelting, a high-temperature process that uses carbon to help separate useful components from ore. According to the ministry, the method allows lithium to be concentrated in slag in a chemically active form, making it easier to process further into lithium salts.
Feruza Berdikulova, the project leader, said the process produces a concentrate containing 12-14% lithium oxide, whereas conventional methods usually produce concentrate with no more than 5-6% lithium oxide.
The ministry said the process has other potential advantages, including reduced use of aggressive sulfuric acid solutions, potentially lower production costs, and less environmental impact.
These claims are potentially significant, but they should be treated with some caution. The ministry statement does not say whether the process has been tested beyond laboratory or pilot conditions, nor does it provide precise details on cost or scalability.
Kazakhstan has large mineral resources and a long-established mining sector, but building a competitive lithium industry would require more than laboratory results. Financing to ensure reliable processing at scale remains one of the biggest challenges.
The work was carried out by the National Center for Complex Processing of Mineral Raw Materials, a state research body that includes several mining and metallurgical institutes and laboratories, among them a rare metals laboratory.
Kazakhstan has been trying to present itself as a future supplier of critical minerals at a time when the global market is looking for alternatives to concentrated supply chains. The Times of Central Asia previously reported that new geological surveys at the Kuirektykol rare earth deposit in the Karaganda region had raised estimates of commercially viable rare earth elements to 28.2 million tons, up from an initial estimate of 20 million tons.
The country is also preparing to open an internationally accredited rare earth metals laboratory in Astana, under the National Geological Service, with certification from RCI Inspection and PARAGON. The facility is intended to improve Kazakhstan’s ability to test and certify critical minerals for international markets.
The lithium processing announcement should be read in that context. It is not proof that Kazakhstan is about to become a major lithium producer. It is, however, another sign that the government wants to move beyond raw extraction and develop the capacity needed to compete in higher-value parts of the critical minerals supply chain.
