公开(公告)号：US20220017414A1

公开(公告)日：2022-01-20

申请号：US17290215

申请日：2019-10-30

Applicant: IMERTECH

Inventor： Hervé FRYDA ,  Ratana SOTH ,  Rose-Marie MINEAU ,  Eric LARNAUDIE

IPC: C04B7/32 ,  C04B7/44 ,  C04B28/06 ,  C01F7/16 ,  B01J23/02

Abstract: Disclosed is a method for manufacturing a hydraulic binder including a calcium aluminate, which involves: a) providing a composition including a lime C source compound and an alumina source compound, the composition including at most 95% lime C and alumina, and at least 23% alumina, by weight relative to the total weight of dry matter of the composition; b) placing the composition provided in step a) in a moisture-saturated environment, at a hydration temperature of between 40° C. and 150° C., so as to precipitate hydrated phases containing at least one aluminium oxide combined with a calcium oxide and with water; and c) subjecting the precipitates obtained in step b) to a baking temperature of between 200° C. and 1300° C., for at least 15 minutes.