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Eco-Friendly Smokeless Al_2O_3-SiC-C Brick for Hot Metal Ladle

China's Refractories 2008年第1期17卷 18-21页

作者： Santanu MUkHOPADHYAY Shankha CHATTERJEE manoj k nanda Orind Refractories Limited China

Hot metal transfer ladles were historically lined with high alumina refractories because of compatibility of high alumina refractories with the highly acidic slag, which is transferred .from the iron making plant along with hot metal. With the introduction of higher capacity ladles, technological advancement in the process and increased productivity, calls for a higher campaign life of hot metal ladles, which could not be performed by ordinary high alumina refractories. Resin bonded Al2O3- SiC-C （hereinafter ASC ） bricks gradually developed which at present taking place replacing the conventional refractories. Considerable work has been carried out in developing the ASC refractory to reach the present state. However, for higher capacity ladles still there is a lot of scope for improvement. The present paper deals with the newly developed ASC bricks, which was used in 165 ton capacity hot metal ladles in one European plant and has given a substantial increase in performance. But, the customer was not fuUy satisfied since the brick was reported to produce smokes during preheating of the ladle. In the subsequent supply the smoke generation problem was taken care by adjusting the binders and additives and eco-friendly bricks were re-engineered and supplied to the same plant, which also performed splendidly and created all time record in their plant history.

关键词： Alumina-silicon carbide-carbon brick Hot metal ladle Eco-Friendly

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Metal organic framework modulated nanozymes tailored with their biomedical approaches

引用

Chinese Chemical Letters 2024年第11期35卷 155-171页

作者： manoj kumar Sarangi L.D Patel Goutam Rath Sitansu Sekhar nanda Dong kee Yi Department of Pharmaceutics Amity Institute of PharmacyAmity UniversityLucknow 201313India Department of Pharmaceutics Parul Institute of PharmacyParul UniversityVadodara 391760India Department of Pharmaceutics School of Pharmaceutical SciencesSiksha'O'Anusandhan UniversityBhubaneswar 751030India Department of Chemistry Myongji UniversityYongin 03674Republic of Korea

Nanozymes are the paradigm for bridging inorganic nanomaterials with biology and environment for taking the spontaneous responsibilities to outplay natural ***-organic frameworks(MOFs) are mesoporous materials of inorganic-organic coordination,bearing ampoules of active/target sites and having the tendency to mimic natural *** MOF-based nanozymes(NZs) could be recognized for their tremendous potential for ***,MOFs are of four types namely: modified MOFs,pristine MOFs,MOF-derived materials and MOFs comprised of natural *** MOFs-based NZ modulated via ultrasound,light,and heat revealed diversified *** article is concentrated on different methods for the preparation of MOF-based NZ for mimicking the responses of catalases,multifunctional enzymes,oxidases,superoxide dismutase,hydrolases,and peroxidases,progress and challenges of MOFs/MOF-based materials for exploiting their recent and futuristic approaches in biomedical sector.

关键词： MOF Nanozyme Catalysis Biomedicine Theranostics

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