PROCESS FOR TREATING NUMERAL SLAG AND SCORIA TO IMPROVE THEIR FRAGMENTING PROPERTIES

摘要

The invention relates to a treatment of slag and slag from the manufacture and various treatments of irons, cast irons, steels and non-ferrous metals. The process essentially consists in injecting into these slags and slag, while they are in fusion and before their cooling, powdery and dry metallic carbonates capable of releasing non-polluting gases by thermal dissociation with the exception of metallic carbonates whose metal is poisonous for slag. These powdery carbonates have grain diameters ranging, for the majority, between 20 microns and 10 millimeters. The slag and slag obtained, easy to fragment, can be used in many fields such as: construction and building, production of floors, abrasive materials, water filtration, fertilizers for agriculture, etc.