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Lime's Uses

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i numerosi usi della calce Because the many possibilities offered by using lime and its derivatives, it is not easy to provide an exhaustive list of all possible uses of these products, therefore it will be limited to those which are of greater commercial importance.

It's clear that the type of lime use in different regions of the world is strongly influenced by the specificity of the industries represented on the ground and their level of development.

Reading the statistics available we realize that, in regions where the economy is still at a very elementary level, the use of lime is mainly related to the construction industry and to the agriculture, however, if we move to areas with greater industrial intensity, the lime use for the construction and the agriculture decreases in consumption percentage and find more space in the industrial use.

In richer regions, we see that a significant proportion of the lime consumption is also linked to the activities of the exhaust gases neutralization, waste water and bio-building uses that as connected to an environmental sensitivity are still rising.

produzione mondiale di calce The lime world production is estimated at more than 300 million tons per year, about one third of its global production, it is obtained adding the only productions of China, USA and Russia.

In Europe, the largest producer of lime is Germany with about 10 million tons per year, followed by Italy and France on a par with about 4 million tons per year each.

Excluding petroleum products, that find mainly their own specific use, after sulphuric acid, the lime is the most widely produced chemical product in the world.

The main features that make the economic point of view, the lime and its by-products, widely used in many different fields are, first, their easy availability in all parts of the world with a low production cost.

From a technical point of view the lime operates mainly in all production processes in which it’s necessary to have a basic agent (alkali) or a chemical component with a high degree of similarity to other elements of the periodic table.


 

MAIN USES OF LIME AND ITS BY-PRODUCTS



Steel industry

 

  • Desulphurization of the steel
  • Steel slag
  • Refractory lining


Chemical industry

  • Production of calcium hypochlorite
  • Production of calcium carbide - acetylene
  • Precipitating agent of metals in suspension
  • Production of PCC (precipitated calcium carbonate)
  • Production of soda
  • Monocalcium phosphate
  • Calcium phosphate
  • Tricalcium phosphate
  • Calcium chloride
  • Pharmaceutical Industry

Construction
  • Mortar to bond the bricks
  • Plastering
  • Stucco
  • Paintings
  • Consolidation of clay grounds 
  • Preparation of road foundations
  • Silico aluminate bricks - gas beton blocks
  • Additive in the asphalt preparation 

Environmental protection

  • Neutralization of industrial or town waters
  • PH control
  • Exhaust gas desulphurization
  • Eutrophic lakes control


Agriculture and food industry

  • Correction of ground pH
  • Sugar production
  • Water remineralisation
  • Disinfection of stables
  • Fertilizers
  • Pesticides 
  • Cheese production
  • Production of animal gelatin or gluten
  • Fruit preservation
  • Fodder for zootechny
  • Oysters farming 
     

Other industrial applications

  • Paper industry as whitener and mass
  • Tanning
  • Aluminum production
  • Detergents production
  • Polishing pastes
  • PVC production
  • Gel coat production
  • Glass production
  • Glass production for the X-ray absorption
  • Production of thermally insulating material
  • Refractory bricks production
  • Gold industry
  • Silver industry
  • Uranium industry
  • Copper industry
  • Drilling of oil wells
  • Mercury production
  • Production of materials for demolition non-explosive
  • Agent for heating ready meals
  • Chrome production
  • Nickel production
  • Paints production
  • Ceramics industry
  • Production of lubricating greases