4/2/2023 0 Comments Midrex statbookThe iron/steel industry is responsible for nearly 9% of anthropogenic energy and process CO2 emissions. Unlike most materials, iron/steel can be “upcycled” meaning that its quality and strength can be enhanced through recycling. It is used again and again without any loss of quality or strength. Iron/steel is one of the few materials with a truly closed recycling loop, as it is not consumed. The utilization of PBD as the alumina source during the production of a calcium aluminate fluxing agent shows promising results CaO/Al2O3 ratio, temperature, holding time, and cooling media. The effects of different process parameters on the properties of the produced flux were experimentally investigated, i.e. Even Pretreated Black Dross (PBD) was evaluated as a possible raw material for the production of a calcium aluminate-based ladle-fluxing agent to be used in the steel industry. The overall degree of chloride removal was established to increase as a function of time and temperature. The optimum conditions for treatment were established, i.e., temperature, gas flow rate, holding time, rotation rate, and sample size. In the present work, salt removal from BD by thermal treatment has been investigated in laboratory scale. As a result it is considered as a toxic waste. The Black Dross (BD) produced during secondary production of aluminium contains high amounts of water-soluble compounds, i.e. Recycling aluminium scrap requires 95% less energy than primary production with no loss of quality or volume. Almost three quarters of all the aluminium that has ever been produced is still in use today, and approximately 90% is used in the transport- and construction sector. As a result the global metallurgical industry strives to produce products, which contribute to the global effort by reducing resource use, recycling and reusing materials where possible, and to help create the economic and supply frameworks needed to do this.Īluminium is a material that is infinitely recyclable and remarkably plentiful. Aluminium and iron/steel are truly sustainable materials.
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