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        1. SN Project Name Type of Patent Awarding Authority Year of Awards
          1 A no-power makerup airsystem in confined space Utility Model Patent CNIPA 2018
          2 A drying device for ammonium phosphate slurry Utility Model Patent CNIPA 2018
          3 An emergency treatment device of ammonia gas discharging through relief valve on liquid ammonia tank Utility Model Patent CNIPA 2016
          4 A cyclone dust collector and its chain sweeper Utility Model Patent CNIPA 2016
          5 A tail gas purification device of exhaust gas from sulphur melting Utility Model Patent CNIPA 2016
          6 A defluorination and neutralization device using phosphorus containing wastewater to produce feed grade calcium hydrophosphate Utility Model Patent CNIPA 2016
          7 Exhaust gas treatment system of yellow phosphorus slag flushing sump Utility Model Patent CNIPA 2016
          8 A portable strong sulphuric acid filtering device Utility Model Patent CNIPA 2016
          9 A heat recovery device for DAP ammonium phosphate production Utility Model Patent CNIPA 2016
          10 Internal scrubbing system in the spray drying tower of ammonium dihydrogen phosphate Utility Model Patent CNIPA 2016
          11 A cooling device for sodium fluosilicate substrate Utility Model Patent CNIPA 2016
          12 A short-web device for yellow phosphorus electric furnace Utility Model Patent CNIPA 2016
          13 A high-purity phosphoric acid purification and energy conservation device Utility Model Patent CNIPA 2016
          14 An exhaust gas dedusting device for ammonium phosphate nitrate production Utility Model Patent CNIPA 2016
          15 A high efficiency reaction kettle for DAP production Utility Model Patent CNIPA 2016
          16 Tail gas scrubbing control plant for exhaust gas from ammonium phosphate production Utility Model Patent CNIPA? 2012
          17 Treatment system for exhaust gas from ammonium phosphate production Utility Model Patent National Intellectual Property Administration, PRC (CNIPA) 2012
          18 Dedusting new process of ecru dibasic ammonium phosphate (DAP) using desiccative hot air Design Pty Tech of Chem Industry CCESDA 2012
          19 5 kt/a pyrethrum extraction technology Design Pty Tech of Chem Industry CCESDA 2012
          20 35 kt/a high-purity phosphoric acid purification and energy conservation technology Design Pty Tech of Chem Industry CCESDA 2009
          Yunnan Design Institute of Chemical Engineering Co., Ltd.2018 ALL RIGHTS RSERVED 滇ICP備13005489號-1
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