The technical viability of the marble waste as raw material in the iron ore pelletizing sector was investigated. The effects of binary basicity (0.15 to 0.45), fixed carbon (0.5 to 1.1 wt pct), and bentonite percentages (0.5 to 0.7 wt pct) on the pellet properties were also investigated. The physical properties of the pellets were determined for drop number, tumble strength, porosity, green pellet resistance, and fired pellet resistance. The reducibility test was determined by kinetic investigation under CO flow in the temperature range of 700 °C to 1100 °C applying the Forced Stepwise Isothermal Analysis method. The results demonstrated that the marble waste has potential to be used as raw material in the iron ore pelleting process. The maximum performance was obtained with a basicity of 0.45, fixed carbon of 0.5 wt pct, and bentonite content of 0.5 wt pct. This composition reached a mechanical strength of 284.38 kgf/pellet, drop number of 3.5 drops/pellet, tumble strength of 0.56 wt pct, and green pellet resistance of 1.53 kgf/pellet. The kinetic investigation reveals that the diffusion mechanism was the best-fitted mode that displayed an activation energy of 79.4 kJ/mol between 700 °C and 800 °C and 157.2 kJ/mol in the temperature range of 850 °C to 1050 °C.

对铁矿石制粒领域中以大理石废料为原料的技术可行性进行了研究。还研究了二元碱度（0.15至0.45），固定碳（0.5至1.1 wt pct）和膨润土百分比（0.5至0.7 wt pct）对粒料性能的影响。测定粒料的物理性质，以测定其液滴数，滚动强度，孔隙率，耐生粒性和耐烧粒性。通过使用强制逐步等温分析方法在700°C至1100°C的温度范围内在CO流动下进行动力学研究，确定了还原性测试。结果表明，大理石废料有潜力用作铁矿石制粒过程的原料。以0.45的碱度，0.5 wt％的固定碳，和膨润土含量为0.5重量％。该组合物的机械强度为284.38kgf /粒，滴数为3.5滴/粒，翻滚强度为0.56wt％，生胶强度为1.53kgf /粒。动力学研究表明，扩散机理是最合适的模式，在850°C至1050°C的温度范围内，在700°C至800°C和157.2 kJ / mol之间显示出79.4 kJ / mol的活化能。