Patent ID: 11891677
Assignee: NORTH CHINA UNIVERSITY OF SCIENCE AND TECHNOLOGY
Field: Materials, metallurgy (Chemistry)
Classification: CPC C  Y | IPC C

Claim 0:
1. An additive for reducing a roasting temperature of fluxed magnetite pellets, comprising components: B2O3 and Mn2O3;
the B2O3 and Mn2O3 being chemical analytical reagents, and the additive being formed by mixing B2O3 with Mn2O3;
a mass percentage of B2O3 being 0.8% of a dry base mass of magnetite concentrate, and a mass percentage of Mn2O3 being 4% of the dry base mass of the magnetite concentrate; and
a preheating time of a preheating temperature stage of 600-1000° C. being extended to cause Mn2O3, at 600-1000° C., to lose weight and be decomposed to release O2, promoting the oxidation and recrystallization of magnetite from an interior, and the roasting temperature being set below a melting point temperature of 1200° C. of a low melting point substance.