To solve the problem of high oxygen content in the deoxygenated pregnant liquid after long-term use of the deoxygenation tower in the zinc powder replacement process,this paper mainly conducts a series of studies on the packing types and loading methods of the deoxygenation tower in a gold smelting plant.Through in-depth comparison and analysis of multiple process indicators such as deoxygenation rate,replacement of barren liquid,and grade of gold mud,it was found that using polypropylene Pall Ring packing instead of plastic point wave packing can significantly alleviate the problem of clogging of gaps after calcium deposition of the packing,improve the deoxygenation performance of the deoxygenation tower,significantly reduce zinc powder consumption,lower the grade of precious metals in replacement barren liquid,and improve the grade of gold mud.The improvement of packing has extended the service life of the deoxygenation tower,reduced the interference of base metal elements on the gold mud smelting process,and achieved significant economic benefits.