BRIQUETTE FOR PRODUCTION OF CAST IRON AND STEEL Russian patent published in 2013 - IPC C22B1/24 

FIELD: metallurgy.

SUBSTANCE: briquette includes steel scale, broken electrodes as carbon-containing material, mixture of silicon dioxide, natron and aluminium oxide as binding substance, also it includes dry slurry of gas cleaning of electrical steel furnaces at the following ratio of components, wt %: broken electrodes 9-21, dry slurry of gas cleaning of electrical steel furnaces 10-15, mixture of silicon dioxide, natron and aluminium oxide 1-10, steel scale - the rest. Mixture of silicon dioxide, natron and aluminium oxide contains 3-18 wt % of aluminium oxide , 14-25 wt % of natron, silicon dioxide - the rest.

EFFECT: high mechanical strength of briquette.

3 tbl