Limestone, the primary resource we work with, is a rare and limited resource that can only be mined once. This is why we must valorize it with care and efficiency. Therefore, Lhoist is committed to responsible resource valorization and to preserve high-quality dolomite and limestone deposits.
We strive for zero unvalorized materials processing. By valorizing such resources with useful properties, we meet our customers’ needs or provide products that contribute to innovative solutions.
To reach our ambition, we start identifying unvalorized materials as soon as they are generated. Then, we continuously work to decrease co-products generation by, for instance, investing in new kiln technologies. We also work on improving process control and optimizing start-up procedures with the objective to maximize production in first grade specification. Finally, we strive to recycle co-products directly into the calcination process or to further process them through hydration or briquetting.