Task: Translation
Input (Spanish): The process preferably comprises adding a diisocyanate, specifically methylenediphenyldiisocyanate (MDI) to an aqueous slurry of calcium sulfate material and cellulosic fibers, where the MDI is added as an emulsion stable in the conditions in which the slurry is maintained.
Output (English): El proceso comprende agregar un diisocianato, especificamente metilen difenil diisocianato (MDI) a un fango acuoso de material de sulfato de calcio y fibras celulosicas, en donde el MDI se agrega como una emulsion estable en las condiciones en donde el fango se mantiene.