SYNTHESIZING METHOD OF FINE POWDER OF COPPER USING ORGANIC SOLVENT

摘要

PURPOSE: A synthesizing method of fine powder of copper using organic solvent is provided to directly prepare copper powder without reduction treatment by inducing reaction of organic solvent at proper temperature and pressure. CONSTITUTION: The synthesizing method of fine powder of copper using organic solvent comprises the processes of preparing copper hydroxide sediment by reacting a copper precursor aqueous solution with a neutralizer selected from calcium hydroxide (KOH), sodium hydroxide (NaOH) and ammonium hydroxide (NH4OH); and reacting the mixed solution at a temperature of 200 to 300 deg.C for 0.5 to 20 hours after dissolving the sediment into an organic solvent, wherein the copper precursor is at least one or more precursors selected from copper nitrate hydride (Cu(NO3)2·xH2O), copper chloride dehydride (CuCl2·2H2O), copper sulfide pentahydride (CuSO4·5H2O) and copper sulfide hydride (CuSO4·xH2O), wherein the organic solvent is at least one or more solvents selected from ethylene glycol, di(ethylene glycol), polyethylene glycol and butanediol, and wherein centrifuge method is used to recover the obtained copper fine powder.