灼烧过程对稀土氧化物中氯元素的影响

摘要

研究稀土氧化物制备过程中灼烧过程对最终稀土氧化物中氯的影响,考察了碳酸盐灼烧时的装填量与装填方式、灼烧温度、升温曲线等对最终稀土氧化物中氯的影响.结果表明,在碳酸盐非金属(氯离子含量)元素含量一定的条件下,碳酸盐的装料越少、升温速度越慢、灼烧温度越高,最终产出的稀土氧化物的氯含量就越低.%Effect of calcining process on chlorine in final rare earth oxides during preparation of rare earth oxides was analyzed.Effects of loading volume,feeding mode,calcining temperature,and heating curve on chlorine in final rare earth oxides were investigated.The results show that the lower carbonate loading is,the slower heating rate is,and the lower burning temperature is,the lower chlorine content in rare earth oxide is.