Title:
PRODUCTION OF MAGNESIA-CHROME-BASED REFRACTORY
Document Type and Number:
Japanese Patent JPH0421563
Kind Code:
A
Abstract:
PURPOSE: To improve corrosion resistance to slag of a low basicity without impairing conventional advantages by substituting part of magnesia clinker with superfine powdery magnesia clinker having a specific grain size.
CONSTITUTION: A raw material at a weight ratio of magnesia clinker to chrome mineral within the range of (20:80)-(20:80) is burned at a high temperature to provide a magnesia-chrome-based refractory. In the process, part of the aforementioned magnesia clinker is substituted with superfine powdery magnesia clinker, having 0.02mm maximum grain diameter and containing ≥60wt.% superfine powder with ≤1μm grain diameter.
Inventors:
UNOSAKI NOBUYUKI
ISHII HIROMASA
SHINTANI HIROTAKA
KAWAKAMI TATSUO
ISHII HIROMASA
SHINTANI HIROTAKA
KAWAKAMI TATSUO
Application Number:
JP12165290A
Publication Date:
January 24, 1992
Filing Date:
May 11, 1990
Export Citation:
Assignee:
KAWASAKI REFRACTORIES CO LTD
International Classes:
C04B35/047; C04B35/04; C04B35/12; C04B35/42; (IPC1-7): C04B35/04; C04B35/12; C04B35/42
Attorney, Agent or Firm:
Toyoaki Fukui