POROUS AGGLOMERATES CONTAINING IRON AND AT LEAST ONE FURTHER ELEMENT FROM GROUPS 5 OR 6 OF THE PERIODIC TABLE FOR USE AS AN ALLOYING AGENT

摘要

The invention relates to agglomerates containing iron and at least one otherelement from groups 5 or 6 of the periodic table, in particular, molybdenum ortungsten. The invention is characterised in that said agglomerates have aporosity in the range from 20 to 65 vol %, in particular, from 30 to 45 vol %.A rapid dissolution in a metal melt is thus achieved. According to theinvention, the agglomerates, in particular, contain molybdenum as the furtherelement, preferably in an amount in the range of 60 to 80 wt. %. The particledensity of said agglomerates is preferably 4.2 to 6.3 g/cm3. Said agglomeratesare produced by reduction of a mixture of iron oxide and molybdenum, wherebythe reduced metal is formed into briquettes without the addition of anybinders and the Fe-Mo product in briquette form is then sintered.