Additive for secondary copper alloy melt treatment as well as preparation method and use method of additive

• Main Authors: ZHENG SHAOFENG, HUA CHENGWEN, LUO JINBAO, XIA CHENGLONG, XIANG YANLONG, CHAO GUOHUI
• Format: Patent
• Language: Chinese; English
• Published: 12.03.2024
• Subjects: ALLOYS; CHEMISTRY; FERROUS OR NON-FERROUS ALLOYS; METALLURGY; TREATMENT OF ALLOYS OR NON-FERROUS METALS

The invention discloses an additive for secondary copper alloy melt treatment. The additive comprises the following components in percentage by mass: 20-40% of an impurity removal agent, 10-25% of a gas forming agent, 3-5% of nitrate, 5-15% of rare earth elements and the balance of sodium carbonate. The invention further discloses a preparation method and a use method of the additive for secondary copper alloy melt treatment. The blocky solid additive is obtained by compositely adding the impurity removal agent, the gas forming agent, the nitrate, the rare earth element and the sodium carbonate and controlling the contents thereof. When the additive is used for treating the regenerated copper alloy melt, the effects of one-time addition, efficient purification and low melting consumption can be achieved, meanwhile, the environment-friendly requirements for no smoke, no odor and no dust are met, when the additive is used for treating the regenerated copper alloy melt, the melt impurity removal rate is larger t