SMA Mineral - A world full of lime
Quicklime is produced by heating crushed limestone to about 1,100 degrees Celsius in a shaft furnace or rotary kiln. During the burning of limestone, carbon dioxide is released. The result is calcium oxide (CaCO3 gives CaO + CO2). After burning, the quicklime is crushed and then ground into suitable delivery fractions.
Quicklime has a wide range of applications. Large volumes of quicklime are used in the iron and steel industry, where SMA Mineral supplies both reactive shaft kiln-burnt and hard-burnt rotary kiln quicklime in various fractions.
Customers in the pulp and paper industry are offered customized products with a focus on high purity and functionality. Quicklime is also used in water and flue gas purification, as well as in the mining industry.
Our own development, proprietary deposits, and a large number of our own production facilities allow us to develop the different properties required for optimal performance in our customers’ processes, regardless of the application.
Mesa is a by-product of sulfate manufacturing, generated during the preparation of so-called white liquor. Mesa can be reclaimed and burned—calcined—into quicklime, which is then returned to the original process in a circular manner.
Most pulp mills have their own kilns for recycling mesa into quicklime. However, in the event of failures in their calcination process, there is a risk of operational disruptions, or in the worst case, a complete shutdown.
SMA Mineral’s Sandarne concept offers a quick and flexible solution during temporary breakdowns. With high storage capacity and efficient transportation, we collect the mesa and transport it to our production facility in Sandarne, located outside Söderhamn.
Here, the mesa is calcined into quicklime before being delivered back to the customer as SMA Kraftmesa. It can also be mixed with SMA Cellkalk to produce SMA Kraftkalk-C.
SMA Mineral AB
Box 329
682 27 Filipstad
SWEDEN
