1. WATER TREATMENT

  2. ANIMAL FEED

  3. INDUSTRY

  4. GLASS

  5. AGRICULTURE

 

Calcined or Light Burned Magnesia
is used in effluent treatment and acid neutralisation.

High Calcium Limestone is used in
Cement, Glass, Paint, Putty, Filler & Plastics,

Calcium & Magnesium in Lime

The type of limestone is dependent on the
Ca:Mg ratio and the Mg content of the lime.

Nomenclature


Ca : Calcium
CaO : Calcium oxide
Ca(OH)₂ : Calcium hydrate
CaCO₃ : Calcium carbonate
CaH₂(CO₃)₂ : Calcium bicarbonate

Mg : Magnesium
MgO : Magnesium oxide
Mg(OH)₂ : Magnesium hydrate
MgCO₃ : Magnesium carbonate
MgH₂(CO₃)₂ : Magnesium bicarbonate

Mn : Manganese
MnO : Manganese oxide

 

Technical - Uses of lime & limestone

Calcium

Calcitic Limestone
100 % CaCO₃

  • Agricultural Lime, Feed Lime,
  • Steel Flux, Plastics, Paper, Filler

High Calcium Limestone
CaCO₃ > 85%
MgCO₃ < 3%

  • Cement, Water Treatment, Glass, Paint, Putty, Filler, Plastics, Paper, Steel Flux, Neutralising Agent
  • Fertiliser, Animal Feed

Dolomitic Limestone
MgCO₃ > 20%
CaCO₃ ≈ 54%

  • Special Aggregate, Steel Flux, Fertiliser, Dusting Powder, Refractory Bricks, White Wash,
  • Ag-lime

Unhydrated Lime
CaO₂

  • Iron & Steel, Calcium Carbide, Water treatment, Ferro-alloys Collieries
  • Soil stabilization, Chemicals, Fertilizer

Hydrated Lime
Ca(OH)₂

  • Gold & Uranium,
  • Soil Stabilization, Agriculture,
  • Pulp & Paper, Sugar, Chemicals, Building, Water Purification, Glass

Magnesium

Magnesite
MgCO₃

  • Plastics, Paper ,Filler, Pigments, Magnesium Chloride, Magnesium Metal
  • Fertilisers, Pesticide Carrier

Calcined or Light Burned Magnesia
MgO: 700° - 1,000°C

  • Building Products, Oxychloride Cements, Insulation Materials,
  • Rubber Additives, Paper& Plastic Manufacture, Pharmaceuticals, Chemicals, Acid Neutralisation, Effluent Treatment
  • Animal Feedstuffs, Fertilisers,

Sintered or Dead-Burned
Magnesia – MgO: 1,500° - 2,300°C

  • Basic Refractories: Mixes
  • Refractory Brick Manufacture:  Magnesia, Magnesia Chrome, Magnesia Carbon, Magnesia Dolime
  • Electrofused Magnesia

Electrofused Magnesia
MgO: >2,800°C

  • Premium Quality Refractories, Ultra-high Temperature Insulators,
  • UV & Infra-red Optical Equipment
  • Nuclear Reactors, Rocket Nozzles

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