Calcium Magnesium Oxide (CaO·MgO)

Calcined Dolomite

Dual-oxide calcined dolomite for steel manufacturing, refractory lining and glass production. CaO 55-58%, MgO 35-38% with high thermal stability.

Calcined Dolomite
55-58%CaO Content
35-38%MgO Content
<2.0%SiO₂ Content
10-60mmSize Range

Product Overview

Produced through precise calcination of high-purity dolomite, our Calcined Dolomite delivers a balanced CaO-MgO composition with exceptional thermal stability. Controlled kiln temperature ensures complete and uniform decomposition with minimal impurities.

  • Dual Oxide Composition - Balanced CaO and MgO for unique properties
  • High Thermal Stability - Withstands extreme metallurgical temperatures
  • Low Impurities - Minimal silica and iron content
  • Controlled Calcination - Precise kiln management for uniform quality

Industrial Applications

Trusted across heavy industry and environmental sectors

Steel & Refractory

Raw material for basic refractory bricks and slag conditioner in BOF/EAF steelmaking. High MgO content protects furnace linings and extends service life at temperatures above 1600 °C.

Glass Production

Supplies both CaO and MgO for improved chemical durability and reduced devitrification in flat and container glass. Balances batch composition for superior weathering resistance.

Agriculture

Dual-action soil conditioner supplying both calcium and magnesium to correct acidity and nutrient deficiency. Prevents magnesium depletion common with pure lime application.

Construction

Magnesia-rich additive in specialty mortars, renders and building products. Enhances dimensional stability, sulfate resistance and long-term durability in masonry applications.

Water Treatment

Neutralization of acidic waste streams and acid mine drainage. Dual CaO-MgO chemistry provides broader pH buffering capacity than single-oxide lime alternatives.

Ceramics

Source of MgO in ceramic bodies and glazes for improved thermal shock resistance and mechanical strength. Enables higher firing temperatures and reduces crazing in finished ware.

Also used in: Ferro-alloy Production, Flue Gas Treatment, Mineral Wool Production, Cement Manufacturing and more.

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