Purifying and recycling treatment method for copper electrolysis open circuit liquid

• Main Authors: GAO SHIKANG, HUANG LI, WU ZENGLING, HUANG HUAIGUO, WANG QIANKUN, SUN ZHONGMEI, JI CHANGQING, ZHONG PINGLI
• Format: Patent
• Language: Chinese; English
• Published: 28.06.2024
• Subjects: CHEMISTRY; METALLURGY; TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE

The invention discloses a purification and recovery treatment method of a copper electrolysis open circuit solution, which comprises the following steps: S1, evaporative crystallization: evaporating and concentrating the copper electrolysis open circuit solution, crystallizing the concentrated solution by using a low-temperature crystallizer to obtain a copper sulfate pentahydrate crystal, and returning the copper sulfate pentahydrate crystal to a copper electrolysis bath; s2, resin arsenic removal treatment is conducted, specifically, crystallization mother liquor obtained through crystallization is subjected to cyclic adsorption through an adsorption column, the adsorption column is filled with deacidified arsenic resin, and after the deacidified arsenic resin is adsorbed to be saturated, liquid obtained after arsenic removal directly returns to the copper electrolytic bath; s3, resin desorption: carrying out repeated cyclic desorption on the adsorption column after adsorption saturation by using condensed