This　paper　focused　on　MnOx/TiO2　SCR　DENOx　catalytic　materials　prepared　with　acidolysis　residue　(a　solid　waste　which　was　generated　during　the　sulfate　process　of　the　titanium　oxide　industry),　and　investigated　the　influence　of　synthesis　temperature　on　catalytic　properties　and　microstructure　of　the　catalytic　materials.　Two　different　synthesis　temperatures　including　ambient　temperature　and　80　degrees　C　were　employed　to　prepare　the　catalytic　materials.　The　modifications　of　textural,　surface　properties　and　catalytic　activity　of　catalyst　prepared　at　different　temperatures　were　compared.　Results　showed　that　the　catalyst　prepared　by　precipitation　method　at　room　temperature　(ammonia-hydrogen　peroxide　was　used　as　precipitant　and　the　calcination　temperature　is　250　degrees　C),　leads　to　a　higher　NOx　conversion　rate.　The　NOx　conversion　at　100　degrees　C　is　80%,　even　95%　at　130　degrees　C.　Results　from　XRD　analysis　indicate　that　the　catalyst　synthesized　at　room　temperature　results　in　a　less　sharp　peak　of　Mn3O4.　The　active　substances　of　manganese　oxides　are　highly　dispersed　on　the　surface　of　the　catalytic　materials　in　amorphous　state.　Furthermore,　H-2-TPR　demonstrates　that　the　catalyst　synthesized　at　room　temperature　has　a　higher　redox　activity　and　the　MnO2　phase　occupies　the　leading　position　of　MnOx,　which　contributes　to　the　excellent　NOx　conversion　rate　of　the　catalytic.