Development a facile way to restore reactivity of deactivated phosphate catalysts for Prins reaction with the assistance of carbon deposition

Without calcination or removing carbon deposition, a facile way to restore catalytic capacity of deactivated phosphate catalysts for Prins reaction was developed with the assistance of carbon deposition. The catalytic activity was successful restored by mixing the fresh catalysts with deactivated ones, which can be owed to the synergy effect between acid species and carbonaceous species for isoprene synthesis.