To reduce the landfill volume of waste CaF₂ sludge, artificial fluorite bulk (AFB) is granulated by blending CaF₂ sludge and emulsified asphalt (EA) for the use of flux in this study. Results showed that high stability of micron-sized EA can be successfully prepared and used to granulate CaF₂ powders to form AFB. EA has high-dispersivity with the particle size being measured in the range of 1–8 μm by optical microscope examination from an optimal emulsifiers ratio (CTAB (cetrimonium bromide)/OP-10 (commercial surfactant mixtures) = 75/25), and a high rotational speed in the homogenizer (20,000 rpm). Moreover, with the optimal addition of 12.5% asphalt, the prepared AFB pellets present the highest mechanical strength, reaching 9.88 kgf/cm² and 4.06 kgf/cm² for the uniaxial compressive strength and flexural strength, respectively. The optimal 12.5% addition also satisfies the requirement of the steelmaking process by passing the tumble-test quality examination. The analyses also infer that the cohesiveness of AFB is mainly combined through physical combination forces, including Van der Waals force, bridging action, and mechanical mosaic force. This occurs without triggering new chemical bonding.

为减少废CaF ₂污泥的垃圾填埋量，本研究通过将CaF ₂污泥和乳化沥青（EA）混合以将人造萤石块（AFB）制成颗粒。结果表明，可以成功制备出高稳定性的微米级EA，并将其用于将CaF ₂粉末造粒以形成AFB。EA具有高分散性，通过光学显微镜检查可从最佳乳化剂比例（CTAB（溴化十六烷三铵）/ OP-10（商业表面活性剂混合物）= 75/25）测量粒径，范围为1–8μm，并且均质机中的高转速（20,000 rpm）。此外，通过最佳添加12.5％的沥青，制得的AFB球团具有最高的机械强度，达到9.88 kgf / cm ²单轴抗压强度和抗弯强度分别为4.06 kgf / cm ²和4.06 kgf / cm ²。最佳的12.5％添加量还通过了翻滚试验质量检验，从而满足了炼钢工艺的要求。分析还推断，AFB的内聚性主要是通过包括范德华力，桥接作用和机械镶嵌力在内的物理组合力进行组合的。发生这种情况时不会触发新的化学键合。