Maximizing the Benefits of using Calumite Slag

Some benefits of using Calumite Slag:

  • improved melting efficiency
  • reduced process CO2 emissions
  • improved color stabilization
  • reducing energy consumption
  • improving glass quality

Reducing CO2

As regulation of CO2 emission intensifies, the benefits of reduced CO2 emissions in Calumite Slag become even more valuable. An added benefit is the reduction of CO2 means less form seed or blister defects in glass produced.

Reducing SO4

This allows most plants to operate within legal emission requirements without additional treatment. Reduced treatment costs means more economical efficiency for the plant.

Reduction of NOx

Calumite slag melts faster, meaning lower overall crown temperatures, and more efficient use of thermal NOx

Calamite Slag minimizes the demand for virgin raw materials. It allows for minimum usage of alumina sources and partial replacement of limestone and dolomite.

Calumite Slag is used in all types of soda-lime-silica glass production. Calumite Slag usage depends on factors such as glass color, glass composition, and local raw materials. The level of Calumite Slag is expressed as a percentage of the dry sand weight. In flint container glass, Calumite Slag is typically 6-7% of the dry sand weight. In green container glass, it is 10-13%, while in amber glass, up to 18% of the dry sand weight is used.

In float glass, Calumite Slag is typically used at 4-8% of the dry sand weight. Use of the redox number concept, pioneered by Calumite and now accepted by glassmakers worldwide, ensures the optimum level of Calumite slag is utilized to improve redox control in the furnace and final glass composition.

Calumite Slag Availability and Delivery

Calumite Company, LLC ships its products throughout the United States and has sufficient quantities to meet any customer requirements.