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首页> 外文会议>Symposium on Characterization of Minerals, Metals, and Materials >Preparation of Thermal Insulation Materials from Ferronickel Slag with Addition of Fly Ash Cenosphere
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Preparation of Thermal Insulation Materials from Ferronickel Slag with Addition of Fly Ash Cenosphere

机译：添加粉煤灰微珠的镍铁渣制备保温材料

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摘要

Ferronickel slag is the fourth largest industrial waste in China, in urgent need of efficient treatment. In this study, a facile route for preparing thermal insulation materials from ferronickel slag with the addition of fly ash cenosphere (FAC) was developed based on thermodynamic calculation and experimental exploration. The experimental results showed that a high-quality insulation material with thermal conductivity of 0.4752 W/(m K), bulk density of 1.36 g/cm~3, compressive strength of 49.13 MPa, water absorption of 16%, and linear shrinkage of 14.7% could be obtained when the ferronickel slag was sintered with the addition of 25 wt % FAC at 1200 °C for 2 h. The method is expected to provide a useful guide for value-added treatment of ferronickel slag.
机译：镍铁渣是我国第四大工业废渣，急需高效处理。本研究基于热力学计算和实验探索，提出了一种以镍铁渣为原料，添加粉煤灰微珠（FAC）制备隔热材料的简便方法。实验结果表明，该材料导热系数为0.4752W/（MK），容重为1.36g/cm3，抗压强度为49.13MPa，吸水率为16%，是一种优质保温材料，在1200°C下加入25 wt%FAC烧结2h，镍铁渣的线性收缩率可达14.7%。该方法有望为镍铁渣的增值处理提供有用的指导。

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