Anglo American spun off its thermal coal business and is selling its metallurgical coal mines.

英美资源集团剥离了其动力业，并正出售其冶金矿。

However, the researchers estimate that, besides the green benefits accruing, the initial investment would be repaid in 22 months by the elimination of expensive metallurgical coke from the process, and from selling any oxygen that was surplus to requirements.

然而，研究员估计，除了产生的绿色效益外，初始投资将 22 内通过从工艺中消除昂贵的冶金焦炭以及出售任何多余的氧气来收回。