Cyanide barren solution purification treatment method

• Main Authors: GAO SHIKANG, HAN LIANG, LIN GUOQIN, WU ZENGLING, LIU QIANG, WANG HONG, WANG QIANKUN, SUN ZHONGMEI
• Format: Patent
• Language: Chinese; English
• Published: 13.10.2023
• Subjects: CHEMISTRY; METALLURGY; TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE

The invention discloses a cyaniding barren solution purification treatment method which comprises the following steps: aiming at a copper-cyanogen complex in a cyaniding barren solution, firstly precipitating cyanide and thiocyanate by adopting a prepared cuprous solution, and then precipitating residual copper ions by adopting a vulcanizing reagent, finally, residual metal ions are adsorbed and recycled by adopting an activated carbon catalytic oxidation method, and residual cyanide is subjected to catalytic oxidation. According to the method, various valuable substances in the wastewater can be recycled to the maximum extent, deep purification treatment of heavy metal and cyanide can be achieved, the treatment process is simple, the investment and operation cost is low, and the method has high application value and prospects in cyanidation process enterprises. 本发明公开了一种氰化贫液净化处理方法，针对氰化贫液中的铜氰络合物，首先采用配制的亚铜溶液对氰化物和硫氰酸盐进行沉淀，然后采用硫化试剂对剩余的铜离子进行沉淀，最后采用活性炭催化氧化法对残余的金属离子进行吸附回收，对残余的氰化物进行催化氧化。本发明不仅能够最大限度的回收废水中的各种有价物质，而且可以实