FUNDAMENTAL RESEARCH OF THE CINDERS AS PIG MAKING MATERIAL (II)

Abstract

There are two kinds of cinders, obtained as the residue in sulphuric acid plant. One is mainly composed of Fe₂O₃ (Pyrite cinder Py-C) and the other is mainly composed of Fe₃O₄
(Pyrrhotite cinder Pr-C).
To clarify differences of the reducing behavior between these two cidners.
The cinders were investigated as follows:
(1) Measurement of high temperature permeability at various temperature.
(2) Degree of reducibility.
The main results were as follows:
(1) Py-c was reduced easier than Pr-c by CO and solid C.
(2) High temperature permeability of Py-c was better than that of Pr-c.