Selective Batching

Selective batching is a technique that can be used to decrease the chemical reaction of alkali and alkaline-earth carbonates and thereby eliminating the formation of low viscosity eutectic liquids at the early stages of melting – which lead to increased reaction and melting times – and promoting reactions between the fluxes and quartz earlier. This can reduce melting times and optimize energy consumption. Developments with this technology have been focusing on spray drying to pre-mix the different raw materials. To spray dry the material, the material needs to be ground very finely, which is already done for the production of glass fibers. Therefore, early applications are focusing on glass fiber production. The technology is undergoing further testing at a larger scale, and not yet commercially available (Worrell et al., 2008. p.54).

Development Status Products

Selective BatchingCosts & Benefits

Parent Process: Batch Preparation
Energy Savings Potential

Early findings suggest that the melting time can be reduced by 50%, resulting in fuel savings of 20-33% (Worrell et al., 2008. p.54).

CO2 Emission Reduction Potential

Selective Batching Publications

Selective Batching Presentations