Calcinated or agglomerated dolomite

cpc code 37450 covers the production of calcinated or agglomerated dolomite, a crucial material in various industries. Dolomite is a naturally occurring mineral composed of calcium and magnesium carbonates, and its calcination or agglomeration process transforms it into a versatile product with a wide range of applications. This industry plays a vital role in the construction, steel, and chemical sectors, contributing to the broader economy through its diverse end-uses.

The production of calcinated or agglomerated dolomite typically involves a multi-step process. First, the raw dolomite is extracted from quarries or mines. The extracted material is then crushed, ground, and screened to achieve the desired particle size. Next, the dolomite is subjected to a calcination process, where it is heated to high temperatures, typically between 800°C and 1,200°C, to drive off the carbon dioxide and produce a porous, reactive material. In some cases, the calcinated dolomite may be further agglomerated, a process that involves binding the particles together to create larger, more uniform pieces.

The main inputs required for the production of calcinated or agglomerated dolomite include the raw dolomite mineral, which is the primary raw material. Additionally, the process requires energy sources, such as natural gas or electricity, to power the calcination and agglomeration equipment. Specialized machinery, including crushers, grinders, and kilns, are also essential for the various stages of production.

The primary output of this industry is calcinated or agglomerated dolomite, which finds applications in a variety of industries. The calcinated dolomite is commonly used as a refractory material in the steel industry, as a flux in the production of 37440 Lime and calcined dolomite, and as a filler or additive in the chemical and construction industries. The agglomerated dolomite may also be used in the production of 37460 Dolomite, not calcinated, which has further applications in the construction and agricultural sectors.