Kantiranis Nikolaos
Department of Mineralogy-Petrology-Economic Geology, School of Geology, Faculty of Sciences, Aristotle University of Thessaloniki, GR-54124 Thessaloniki, Greece.
Waste Manag. 2004;24(10):999-1004. doi: 10.1016/j.wasman.2004.07.009.
Large amounts of sugar-ash, a material rich in calcium carbonate, are produced as a by-product in the Greek Sugar Industry. This work explores the possibility of re-cycling sugar-ash for use in the lime industry. A representative sample of sugar-ash from the Plati Imathias sugar plant was studied by PXRD, TG/DTG, calcination experiments at temperatures between 650 and 1150 degrees C and experiments to determine the quality of the quicklime produced at temperatures between 850 and 1150 degrees C following methods described in ASTM C110 standard. The sugar-ash was found to consist of 90 wt% calcium rich minerals (calcite and monohydrocalcite) and 10 wt% amorphous material. Traces of quartz were also detected. The quicklime of highest quality was produced at 950 degrees C. It is concluded that this "useless" material (sugar-ash) can be re-cycled for use in rotary kilns in the lime industry at calcination temperatures up to 950-1000 degrees C.
大量富含碳酸钙的糖灰作为副产品在希腊制糖工业中产生。这项工作探索了将糖灰回收用于石灰工业的可能性。通过粉末X射线衍射（PXRD）、热重/微商热重分析（TG/DTG）、在650至1150摄氏度之间的煅烧实验以及按照美国材料与试验协会（ASTM）C110标准中所述方法来测定在850至1150摄氏度之间产生的生石灰质量的实验，对来自普拉蒂伊马夏斯糖厂的糖灰代表性样品进行了研究。发现糖灰由90重量%的富钙矿物（方解石和一水碳酸钙）和10重量%的无定形物质组成。还检测到了微量石英。在950摄氏度时生产出了质量最高的生石灰。得出的结论是，这种“无用”物质（糖灰）可以在高达950 - 1000摄氏度的煅烧温度下回收用于石灰工业的回转窑中。
