Nordkalk
Encyclopedia
Nordkalk is a manufacturer of limestone
-based products based in Finland
. It operates at more than 30 different locations in 8 countries of Central and Northern Europe.
at least since the 17th century, possibly as early as the 14th century.
Industrial quarrying began on the 26th of November 1898 when the joint-stock company Pargas Kalkbergs Aktiebolag was established by Otto Moberg.
Pargas Kalkbergs Aktiebolag later changed its name to Partek. Nordkalk was part of Partek until February 2003. In August 2010 Rettig Group Ltd becomes the sole owner of Nordkalk.
Nordkalk Corporation continues to quarry and process limestone as a a member of the Rettig Group.
Limestone-based products are used in the paper, steel and building materials industries and also in environmental care and agriculture.
Limestone
Limestone is a sedimentary rock composed largely of the minerals calcite and aragonite, which are different crystal forms of calcium carbonate . Many limestones are composed from skeletal fragments of marine organisms such as coral or foraminifera....
-based products based in Finland
Finland
Finland , officially the Republic of Finland, is a Nordic country situated in the Fennoscandian region of Northern Europe. It is bordered by Sweden in the west, Norway in the north and Russia in the east, while Estonia lies to its south across the Gulf of Finland.Around 5.4 million people reside...
. It operates at more than 30 different locations in 8 countries of Central and Northern Europe.
History
Limestone has been quarried in PargasPargas
Pargas is a former town and municipality in south-western Finland. On 1 January 2009, it was consolidated with Houtskär, Iniö, Korpo and Nagu to form the new town of Väståboland....
at least since the 17th century, possibly as early as the 14th century.
Industrial quarrying began on the 26th of November 1898 when the joint-stock company Pargas Kalkbergs Aktiebolag was established by Otto Moberg.
Pargas Kalkbergs Aktiebolag later changed its name to Partek. Nordkalk was part of Partek until February 2003. In August 2010 Rettig Group Ltd becomes the sole owner of Nordkalk.
Nordkalk Corporation continues to quarry and process limestone as a a member of the Rettig Group.
Products
The main product groups of Nordkalk are:- LimestoneLimestoneLimestone is a sedimentary rock composed largely of the minerals calcite and aragonite, which are different crystal forms of calcium carbonate . Many limestones are composed from skeletal fragments of marine organisms such as coral or foraminifera....
products (calciteCalciteCalcite is a carbonate mineral and the most stable polymorph of calcium carbonate . The other polymorphs are the minerals aragonite and vaterite. Aragonite will change to calcite at 380-470°C, and vaterite is even less stable.-Properties:...
or calcium carbonateCalcium carbonateCalcium carbonate is a chemical compound with the formula CaCO3. It is a common substance found in rocks in all parts of the world, and is the main component of shells of marine organisms, snails, coal balls, pearls, and eggshells. Calcium carbonate is the active ingredient in agricultural lime,...
and dolomiteDolomiteDolomite is a carbonate mineral composed of calcium magnesium carbonate CaMg2. The term is also used to describe the sedimentary carbonate rock dolostone....
) - Quicklime (calcium oxide) and slaked lime (calcium hydroxideCalcium hydroxideCalcium hydroxide, traditionally called slaked lime, is an inorganic compound with the chemical formula Ca2. It is a colourless crystal or white powder and is obtained when calcium oxide is mixed, or "slaked" with water. It has many names including hydrated lime, builders lime, slack lime, cal, or...
) - Raw materials for paper pigments (flotation calcite, quicklime)
- WollastoniteWollastoniteWollastonite is a calcium inosilicate mineral that may contain small amounts of iron, magnesium, and manganese substituting for calcium. It is usually white. It forms when impure limestone or dolostone is subjected to high temperature and pressure sometimes in the presence of silica-bearing fluids...
- Special products
Limestone-based products are used in the paper, steel and building materials industries and also in environmental care and agriculture.