A peer-reviewed study published by the German Lithium Institute has unveiled a game-changing discovery for the cement industry and sustainable construction. The research, conducted at Martin Luther University Halle-Wittenberg, demonstrates that by-products from Rock Tech Lithium Inc.'s lithium conversion process can serve as a valuable precursor material in cement production.
The study confirms that leached spodumene concentrate (LSC), generated during the production of lithium from spodumene, holds substantial industrial potential. Primarily composed of aluminosilicates, LSC can effectively replace fly ash as an additive in cement production. This discovery comes at a crucial time, as fly ash, a by-product of coal-fired power generation, is becoming increasingly scarce.
One of the most significant findings of the research is the positive impact of LSC on cement strength. When 20 percent LSC is added to Portland cement, the most widely used cement type globally, compressive strength increases by ten percent. This improvement occurs regardless of the spodumene's origin, validating Rock Tech's production process and procurement strategy.
The utilization of LSC in cement production addresses two critical industry challenges: supply security and environmental sustainability. As traditional material streams for the cement industry diminish due to the phase-out of coal and transformation of the steel industry, LSC offers a promising alternative. This innovation not only ensures a steady supply of essential additives but also contributes to reducing CO2 emissions in cement production.
Dr. Andreas Neumann, a member of the research group, emphasizes the potential of LSC to compensate for depleting material streams crucial for CO2 savings and product portfolio in the cement industry. Jannik Schmitz, Supply Chain Manager at Rock Tech Lithium, highlights the study's significance in advancing the company's goal of becoming the first zero-waste lithium company worldwide.
Dr. Thomas Neumann, Head of Research and Development at SCHWENK Zement GmbH & Co. KG, underscores the importance of integrating industrial residues from lithium production into cements and concretes. This approach not only conserves valuable natural resources but also plays a vital role in achieving sustainability goals and reducing environmental impact.
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Rock Tech Lithium Inc. is poised to construct Europe's first lithium converter in Guben, Brandenburg. With an annual production capacity of 24,000 tons of lithium hydroxide, the facility will provide material for 500,000 electric batteries, forming a crucial component of the battery value chain. The company aims to develop material recycling capacities and achieve zero-waste lithium production through complete reuse of byproducts, benefiting from regional value chains and short distances.
