The experiment on calcined denitriding process of recarburizer 95(containing 0. 10%N)
petroleum coke(0.93%N)and pitch coke(0.40% N)has been carried out. The results indicated that with increasing cal- cined temperature the nitrogen content in 3 kinds of recarburizer decreased and as the temperature was more than 2000℃
the nitrogen content in each recarburizer was less than 100×10
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.As calcined temperature was 1800℃
the nitrogen content in recarburizer 95 was less than 300×10
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while that in petroleum coke or pitch coke was less than 100×10