4,5,6题,

4,5,6题,
4,5,6题,
 

4,5,6题,
⒋ZnCO3＝高温=ZnO + CO2↑
2ZnO + C＝高温=2Zn + CO2↑
2Cu2O + C＝高温=4Cu + CO2↑
⒌5000t*76%=3800t
3CO+ Fe2O3 =高温= 2Fe + 3CO2
160 112
3800t x*98%
160/3800t=112/(x*98%)
x=2714.3t
理论上可日产Fe98%的生铁的质量是2714.3吨
⒍2000t生铁含铁 2000t*(1-3%)=1940t
Fe3O4+4CO=高温=4CO2+3Fe
232 168
x*90% 1940t
232/0.9x=168/1940t
x=2976.72t