1·直接还原工艺尽管受到金融危机的影响,国外直接还原工艺仍保持稳定的发展态势,产量降低不多。2008年为6850万t,2009年6200万t。需要指出的是,其增产的主要部分来自印度的众多小煤基回转窑。然而,这种工艺的高能耗和低效率及产品低品质不能代表直接还原的发展方向。煤基转底 1. Direct reduction process Despite the impact of the financial crisis, foreign direct reduction process is still maintaining a steady development trend, yield is reduced less. 68.5 million tons in 2008 and 62 million tons in 2009. It should be pointed out that the major part of its production increase comes from many small coal-based rotary kilns in India. However, the high energy consumption and inefficiency of such a process and the low quality of the product do not represent the direction of direct reduction. Coal base transfer at the end