Dolomite is an anhydrous carbonate mineral composed of calcium magnesium carbonate. An alternate name used for dolomite is dolomitic rock or dolostone. Dolomite has a wide range of applications in various industries but the primary application is found in the steel & iron industry and construction sector. Dolomite is found worldwide in the form of bedrocks but the primary deposits are found in the Midwestern U.S., Ontario, Canada, Switzerland, Pamplona, Spain, and Mexico. Dolomite is used in the refractories as a fluxing material. It is also used in the water purification and sludge treatment industries such as desalination plants and RO plants. Dolomite is used as a rich source of calcium and magnesium in the pharmaceutical as well as animal feed industry.
Dolomite is generally used in paint as a filler. Dolomite is a hard mineral, thus it imparts very good scrub resistance to the paint. It is a white extender, which does not temper the paint color and gives opaqueness to paint film. It is easy to disperse due to its hydrophilic nature same as calcium carbonate. Dolomite is slowly gaining market with better consistency and quality with more equivalent grades than calcium carbonate in the paint industry. Dolomite also has the ability to grow in volume over time, allowing it to compete with calcium carbonates in a wider spectrum of goods. Dolomite is becoming more popular in the paint industry as a result of these factors. In the paper and pulp manufacturing sector, dolomite has been used in paper and cardboard production by adding it into cellulose in different proportions. Dolomite increases the whiteness of paper due to which there is a lesser requirement of additional optical brighteners. This makes it cost-effective as well as environmentally friendly. Dolomites helps to keep less water and increases the amount of drawn water, thereby increasing the production speed. These advantages of dolomite over calcite is driving the global dolomite market growth.
The dolomite has a variety of applications in various industries. It is used as a filler in the glass and ceramic industry. Dolomite is also used as a source of magnesium oxide for making magnesium metal and chemical uses, such as the common laxative milk of magnesia. Dolomite is used in some types of cements and as mineral specimens. Crushed dolomite aggregates are used for the construction of concrete mixtures.
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