http://himg2.huanqiu.com/attachment2010/2017/0205/20170205062013740.gif
http://a3.peoplecdn.cn/ccdcbd6ed8225e9f84452fbb56afb450.gif
http://himg2.huanqiu.com/attachment2010/2017/0205/20170205061950437.gif
http://himg2.huanqiu.com/attachment2010/2016/1016/20161016082727114.gif
http://www.mfcad.com/uploads/allimg/130820/-1_130820143305_1.gif
炼铁的原理是利用一氧化碳还原氧化铁,化学方程式为Fe2O3+3CO2Fe+3CO2