| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide a new method for producing high carbon ferrochrome air granulated slag. <P>SOLUTION: High carbon ferrochrome molten slag comprising 6 mass% or less of Cr<SB>2</SB>O<SB>3</SB>, 20-40 mass% of MgO, 20-40 mass% of Al<SB>2</SB>O<SB>3</SB>, 25-45 mass% of SiO<SB>2</SB>, and 1-5 mass% of CaO at a temperature of 1,300-1,450°C is air-granulated using a main nozzle for air granulation and an upper nozzle for preventing scattering provided above the main nozzle for air granulation to produce spherical high carbon ferrochrome air granulated slag with a particle size of 0.1-5.0 mm. <P>COPYRIGHT: (C)2004,JPO&NCIPI</p> |
