Abstract: In order to provide the technical basis for developing a refractory gold ore, a detailed study on beneficiation and metallurgical processing was carried out.The results showed that: with grinding fineness of -200 mesh 80%, gold concentrate with Au grade and recovery of 57.32 g/t and 84.00% was obtained respectively by single flotation process.Through the process of floatation-tailing cyanide leaching, gold concentrate with Au grade and gold recovery of 60.09 g/t and 82.26% was firstly obtained under the grinding fineness of -200 mesh 70%.Then, gold leaching solution with Au leaching rate of 10.70% was achieved under regrinding fineness of -200 mesh 90%.Total gold recovery reached 92.96%.Therefore, according to the test results, the process of flotation-tailings cyanide leaching is recommended.

Key words: Refractory gold ore, Single flotation, Floatation-tailing cyanide leaching, Gold recovery