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一、前言目前我国主要采用电硅热法冶炼钒铁,还原剂以硅(FeSi75)为主。其反应式为: 2/5V_2O_5+Si=4/5V+SiO_2 △F~0=-86800+16.52T (1) 2/3V_2O_3+Si=4/3V+SiO_2 △F~0=-32267+9.84T (2) 2/5V_2O_5+Si+2CaO=4/5V
First, the preface At present, China mainly uses electric silicon thermal smelting ferrovanadium, reducing agent to silicon (FeSi75) based. The reaction is: 2 / 5V_2O_5 + Si = 4 / 5V + SiO_2 △ F ~ 0 = -86800 + 16.52T (1) 2 / 3V_2O_3 + Si = 4 / 3V + SiO_2 △ F ~ 0 = -32267 + 9.84T (2) 2 / 5V_2O_5 + Si + 2CaO = 4 / 5V