 | | | ZKG Newsletter 11|2025 - Green Challenge |
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| | Black Capture & Kalkwerke Oetelshofen: Working together towards an emission-free lime industry | |
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| In many industrial sectors, every effort is currently being made to pave the way for CO2 neutrality by 2035. In an interview with ZKG, Till H. Iseke, Managing Director of Kalkwerke H. Oetelshofen GmbH & Co. KG, and Martin Pietrowski, Managing Director of Black Capture, take stock of how the pilot plant for CO2 capture has affected processes at the lime plant after six months and venture a look ahead at further joint goals and the future of the lime industry.
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| | From cement to clinker, BEUMER bucket elevators deliver reliable vertical transport for every application. Our belt elevators maximize capacity and efficiency, while our chain elevators handle the toughest, hottest materials with ease. Backed by decades of expertise, we ensure durability, reduced maintenance, and long-term profitability. Choose bucket elevators that elevate performance and keep your plant moving forward.
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| | meca® clay: Transforming clays into high-performance SCMs | |
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| The cement industry is undergoing a fundamental transformation. Driven by the need to decarbonize, the depletion of traditional supplementary cementitious materials (SCMs) like fly ash and slag, and the demand for regionally adapted raw materials, the sector is being pushed to rethink its technological foundations. In this context, SCMs are increasingly recognized as key to reducing CO₂ emissions and conserving resources.
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| Retrofitting ball mills for high-moisture supplementary cementitious materials: A sustainable path to lower CO2 emissions
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© Christian Pfeiffer Maschinenfabrik GmbH
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The cement industry is actively working on reducing the environmental impacts of their processes while maintaining product quality and competitiveness. Supplementary cementitious materials (SCMs) such as slag and fly ash offer a solution to lower Scope 1 emissions and support circular economy principles given that embodied emissions are allocated to the main production processes from which they originate. However, their high moisture content and varying properties present technical challenges in some grinding processes. This article explores how retrofitting existing ball mills with tailored solutions enables efficient use of high-moisture SCMs. Drawing on a recent industrial case, it demonstrates how engineering adaptations optimize performance, and help cement producers meet sustainability and climate goals.
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| | Eggersmann FUEL: landfill diversion meets fuel substitution | |
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| Maximum landfill diversion should not be seen as a challenge in waste management but rather as a chance for a more sustainable clinker production. Only the biogenic organic components in RDF do not contribute to global warming. With the Eggersmann FUEL process not only the recyclables in MSW are converted to RDF but also the organic fraction will be an important part of high-quality alternative fuel.
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| | A contribution to decarbonisation in the building materials industry through resource- and climate-friendly gypsum building products – with examples from research – | |
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© Materials Research and Testing Institute Weimar (MFPA)
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A quantitative assessment of the environmental impact of the building materials industry in Germany and the current regulatory framework make it urgent to reduce resource consumption and climate impact. Innovative and practical product developments show that gypsum can be a climate-friendly alternative to CO2-intensive building materials.
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| | | Further highlights of the "Green Challenge"-issue |
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| | | | Fire protection and circular economy: Opportunities and hurdles using the example of drywall constructions
Optimizing rotary kiln design for calcined clay production
The AI revolution – A self-optimizing bucket elevator for alternative fuels
„Granulated blast furnace slag 2.0“ on basis of DRI slag - Results of tests in pilot scale
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