FIREPROOF MOLDED BODIES AND FIREPROOF OFFSET AND METHOD FOR PRODUCING A MOLDED BODY FOR METALLURGICAL PROCESSES

摘要

A refractory moulding, comprising an alpha -Al2O3, beta -Al2O3, calcium hexaaluminate (CA6) and calcium dialuminate (CA2) phase mixture, is new. A refractory moulding comprises a mineral oxidic component which has the composition (by wt.) 80-99% Al2O3, 1-20% CaO and 0-5% usual impurities and which is formed of an alpha -Al2O3, beta -Al2O3, calcium hexaaluminate (CA6) and calcium dialuminate (CA2) phase mixture. Independent claims are also included for the following: (i) a mix, especially for producing the above refractory moulding; (ii) a process for producing the above refractory moulding, especially using the above mix; and (iii) use of the above mix for production of pressed or rammed mouldings or as a rammable, sprayable or repair material.