COMPOSITION OF SOLID BITUMEN AND ITS OBTAINING PROCESS

摘要

Process for preparing a bitumen material which is solid at room temperature, this process comprising at least the steps of: a) preparing an emulsion of bitumen drops in an aqueous phase, b) preparing a silica sol or a silica gel from a silicon oxide precursor at pH ranging from 4 to 8, c) contacting the emulsion of bitumen drops from step a), with the silica sol or the silica gel from step b), d) subjecting the bitumen suspension resulting from step c) to an atomization treatment.