前言战后关于铝直接还原法的消息有所报导。在美国对于直接还原法炼铝赞成与不赞成的意见不一,现在据就有用这种方法生产原铝的公司,认为可能节省制造氧化铝的设备和工资,可是也有的公司认为不能节省电费。又有的公司表示莫如将现在的电解法进一步详细研究并进行改造。作者参阅了各种文献并进行了简单的试验。 Preface The post-war news about direct aluminum reduction has been reported. In the United States, there is disagreement with the direct and indirect methods of aluminum reduction. Now, according to the company that produces primary aluminum in this way, it believes that the equipment and wages for manufacturing alumina can be saved. However, some companies think it is impossible to save electricity. Some companies said that the current electrolytic method will not be further studied in detail and rebuilt. The author consulted various documents and conducted a simple experiment.