Using this process sodium meta-aluminate, RE metal chlorides and sodium silicate have been successfully recovered and recycled to the catalyst production line.

• 不仅消除了滤渣堆放对环境的污染,而且从中回收了偏铝酸钠、氯化稀土和水玻璃,并可将其返回作生产催化剂的原料。