对铬矿石球团的分析,一般是采用“日本重化学(工业公司)法”进行的。这种方法分析时间太长,取样后48小时才得到结果,所以不能适应生产的需要。本发明则推出公式为还原率 R=△W(O+const)-α/O(1+△W),式中△W 重量变化,O 为被还原的氧气,const 和α由铬矿成分决定的已知值。例如已知南非铬矿O=19.50%,const=60.35,α=-1.79。 Analysis of chrome ore pellets is generally conducted using the “Japan Heavy Chemical (Industrial Company) Act.” This method analysis time is too long, 48 hours after sampling to get the result, it can not meet the production needs. In the invention, the formula is deduced that the reduction ratio R = ΔW (O + const) -α / O (1 + ΔW), where ΔW is the weight change, O is the reduced oxygen, and const and α are determined by the chromite composition Of the known value. For example, South African chrome ore is known as O = 19.50%, const = 60.35, α = -1.79.