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News Displaying items by tag: recycling

Displaying items by tag: recycling

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UK universities patent zero-carbon clinkerless cement

18 May 2022

UK: A team of researchers from six UK universities has filed a patent for a clinkerless cement product called Cambridge Electric Cement. Local press has reported that the project, called UK Fires, saw researchers successfully produce the cement using renewable power from recycled cement powder and ground granulated blast furnace slag (GGBFS). Following its successes, UK Fires has obtained a further Euro2m in funding from the UK Engineering and Physical Sciences Research Council (EPSRC) to continue its work into the range of concrete wastes suitable for use in Cambridge Electric Cement production.

Published in Global Slag News
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National University of Science and Technology MISiS launches bubbling reactor pilot

03 January 2019

Russia: The National University of Science and Technology (NUST) MISiS and Vtoraluminprodukt have launched a pilot installation of a bubbling reactor, using the gas flushing principle, in Mtsensk, Oryol Region on 18 December 2018. The concept is intended to fully process industrial waste, slags and sludge, as well as carbon-containing wastes, including municipal solid waste (MSW) and efficient and environmentally-friendly production of iron and concentrate non-ferrous metals. NUST MISiS says that the furnace is the world's only metallurgical furnace capable of processing iron-containing industrial waste as well as solid waste, simultaneously smelting up to 16,000t/yr of metal and producing electricity.

"The advantage of this technology is that it is non-waste and allows for simple, reliable and environmentally-friendly purification of the exhaust gases. And it also allows combining the processing of metallurgical waste, coal preparation factories and municipal waste of enterprises or settlements that are heated with coal. It is a sort of a universal technology," said Nikolay Shenchenko, member of the Expert Mining Committee of the State Duma of the Russian Federation for industry and innovation and the chief executive officer (CEO) of Resmet.

Gennadiy Podgorodetskiy, team leader and director of the Innovative Metallurgical Technology Scientific and Educational Centre, said that the slag composition from the pilot furnace can be selected for further processing into slag stone products, thermal insulation slag or be used to make slag cement products.

Published in Global Slag News
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Japanese steel slag production falls in 2017 financial year

14 June 2018

Japan: Steel slag production fell by 2.1% year-on-year to 36.7Mt in the financial year that ended in March 2018, according to Japan Metal Daily. This was attributed to increasing levels of slag recycling rates with nearly all of the blast furnace slag being reused.

Published in Global Slag News
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