This study presents the results of experiments conducted on the granulation of copper sulfide (Cu₂S) melt. The granulometric characteristics of the samples are calculated as a function of the melt temperature. An increase in the melt temperature to 1,350°C promotes the formation of particles with a particle size of –10.0 +5.0 mm, and a decrease in the melt temperature to 1,250°C promotes the formation of particles with smaller size grades (i.e., –1.6 +1.0, –1.0 +0.63, and –0.63 +0.063 mm). With an increase in temperature, the mean squared deviation of particle size from the average value and the degree of polydispersity decreases to some extent. This study also estimates the influence of the melt temperature on the shape of the granules. The cooling and spheroidization times of particles during granulation at the melt temperatures of 1,250°C, 1,300°C, and 1,350°C were calculated. In the temperature range under consideration for all of the investigated size grades of particles, the cooling time exceeded the spheroidization time, which contributed to the formation of spherical particles. The melt temperature did not significantly affect the chemical composition of Cu₂S granules. The main phase component of the granules was chalcosine (Cu₂S) with a monoclinic lattice of more than 80%. Chalcosine (Cu₂S) with a hexagonal lattice of 8% to 9% and digenite (Cu_1.78S) with 4% to 12% were also identified. Dispersed inclusions of metallic copper were also detected.

这项研究提出了对硫化铜（Cu ₂S）融化。根据熔体温度计算样品的粒度特征。将熔体温度提高到1,350°C会促进形成–10.0 +5.0 mm粒径的颗粒，而将熔体温度降低到1,250°C会促进形成粒径较小的颗粒（即– 1.6 + 1.0，–1.0 +0.63和–0.63 +0.063毫米）。随着温度的升高，粒径与平均值的均方差和多分散度在一定程度上降低。这项研究还估计了熔体温度对颗粒形状的影响。计算了在1250℃，1300℃和1350℃的熔融温度下造粒期间颗粒的冷却和球化时间。在所研究的所有粒度等级的颗粒所考虑的温度范围内，冷却时间超过了球化时间，这有助于形成球形颗粒。熔体温度没有显着影响Cu的化学成分₂ S颗粒。颗粒的主要相成分是具有大于80％的单斜晶格的查尔可辛（Cu ₂ S）。还鉴定出具有8％至9％六方晶格的肌氨酸（Cu ₂ S）和具有4％至12％的重晶石（Cu _1.78 S）。还检测到金属铜的分散夹杂物。