PROCEDE ET APPAREILLAGE DE TRAITEMENT DE CENDRES VOLANTES, EN VUE DE LAFABRICATION DE NODULES EXPANSES ET PRODUITS AINSI OBTENUS

摘要

1386690 Expanded fly ash HOUILLERES DU BASSIN DU NORD ET DU PAS-DECALAIS 22 Sept 1972 [5 Oct 1971] 43984/72 Headings ClH and ClA Expanded nodules are obtained from fly ash by selecting at least two categories of the ash which have been separated from flue gases electrostatically in a series of chambers, mixing with lime adding water to form granules then heating, which results in hardening, decarbonation and expansion.