【摘要】 考察了废阴极燃烧过程中气态氟的排放特性,研究了不同添加剂对燃烧固氟效果的影响。结果表明:废阴极氟析出率随燃烧温度的升高而逐渐升高,在1 200℃、停留30min的务件下,氟析出率达到98.26%;添加单一碳酸钙的固氟率为27.02%,复合固氟剂的固氟效果较单一碳酸钙均有改善,其中加入Al₂O₃的固氟率为37.07%,加入NaCl的固氟率达到41.79%。更多还原

【Abstract】 The paper studies gaseous state fluorine emission characteristics and influence of adding different ad- ditives for fluorine fixation with combustion.The result indicates that the fluoride separation tends to increase with combustion temperature.When the temperature reaches 1200℃and maintains for 30 minutes,fluorine separation rate amounts to 98.26%.When adding single fluorine fixation agent CaCO₃,the rate is 27.02%.If compound one is added,the effect of fluorine fixation is improved.With Al₂O₃ adding,the fixation rate is 37.07% and NaCl 41.79 %.更多还原