高炭素フェロクロム風砕スラグの製造方法及び研掃材

Title:

高炭素フェロクロム風砕スラグの製造方法及び研掃材

Document Type and Number:

Japanese Patent JP4252883

Kind Code:

B2

Abstract:

To provide a new method for producing high carbon ferrochrome air granulated slag.

High carbon ferrochrome molten slag comprising 6 mass% or less of Cr2O3, 20-40 mass% of MgO, 20-40 mass% of Al2O3, 25-45 mass% of SiO2, 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.

Inventors:

Hirokazu Sugimori
Kawaguchi outside autumn
Masahiro Mori
Kenji Takahashi
Miho Kobayashi

Application Number:

JP2003388381A

Publication Date:

April 08, 2009

Filing Date:

November 18, 2003

Export Citation:

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Assignee:

JFE Material Co., Ltd.

International Classes:

B24C11/00; C04B5/02; B01J2/02; B02C19/00; C21B3/06; C22C33/04; F27D15/02

Domestic Patent References:

JP9109030A
JP55159837U

Attorney, Agent or Firm:

Toshiyuki Shiojima

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