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Several mineral and metallurgical processes require gas-liquid or gas-slurry mass transfer for chemical reactions to occur. For example
In general, mass transfer at the gas-liquid interface is rate controlling. |
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Development The concept for mineral slurry aerators originated in Germany, and was developed in the 1970's for flotation. The Aachen Aerator is designed to improve gas-liquid mass transfer using energy provided in pipeline flow. The fundamental principle is the use of a micro-fine gas diffuser made from high-tech, non-blinding materials in a high velocity flowstream. Additionally, a secondary chamber provides regeneration of bubble surfaces using various hydrodynamic effects. |
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The objective is to increase utilisation of the gas phase, thus reducing overall energy and reagent costs. The aerator contains no moving parts, and is designed to withstand erosive effects of mineral slurries. Materials of construction can be selected according to application. |
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