Bayer process for purifying alumina

例句：

1. 1. The Bayer process is usedto purify alumina.
   拜耳工艺用于净化铝土矿。
2. 2. The Bayer process has been widely adopted in theproduction of aluminum oxide.
   拜耳工艺在生产氧化铝方面得到了广泛应用。
3. 3. The Bayer process is known for its efficiency andcost-effectiveness.
   拜耳工艺以其效率和成本效益而闻名。