Process for preparing Cu 2 O

Research and develop new wet method and produced the method for ultra-fine cuprous oxide powder.Characteristics of the present invention are to adopt pure water and ventilation breather or cupric oxide to make slurries, are the 10-100 grams per liter in total copper concentration, and temperature 130-180 ℃, hydrogen dividing potential drop pH=15-35 kilograms per centimeter 2 Endpoint pH is under the condition of 3.0-5.0 scope, carries out the pressurized hydrogen reduction and makes cuprous oxide powder.Use method provided by the invention can make＜cuprous oxide powder of 1.0 μ, purity＞98%, powder shape is the class sphere, is scarlet.