Dry and wet processes of recovery, processing and reuse of dreg residue generated in the pulp industry and products obtained through them

摘要

The present patent relates to dry and wet processes for recovering, refining and reusing dregs residues produced in the cellulose industry, and product obtained by these processes, pertaining to the chemical field, the process allowing dregs residues produced during the manufacture of cellulose to be recovered, refined, reused and applied, more specifically black liquor dregs from the black liquor recovery furnace. The present invention describes dry and wet processes for recovering, refining and reusing dregs residues. The dry process comprises the following steps: preparing dregs mud with the admixture of additives, drying, grinding, sizing, transporting, storing and bagging. The wet process comprises the following steps: preparing dregs mud with the admixture of additives, sifting, grinding and storing.