一、引言稀土氧化物在氟盐中电解,制取混合稀土、单一稀土及其合金是六十年代发展起来的新兴电解工艺。迄今,美国、日本的氧化物电解已进入两万安培工业性试验或工业生产(电流效率约60%),它比我国一万安培氯化物电解的电效(25—27%)高一倍多。氧化物的利 I. INTRODUCTION Rare earth oxides are electrolyzed in fluoride salts to prepare mixed rare earths. Single rare earths and their alloys are emerging electrolytic processes developed in the 1960s. To date, the oxide electrolytes of the United States and Japan have entered into 20,000 ampere industrial tests or industrial production (current efficiency of about 60%), which is more than twice as much as that of China’s electrolysis of 10,000 amperes chloride (25-27%) . Oxide Lee