Abstract: In order to efficiently recover lithium oxide from a spodumene ore in Myanmar，based on the study of process mineralogy，single gravity separation，single magnetic separation，single positive flota⁃ tion and single reverse flotation process are studied.The test results show that the reverse flotation process is used to carry out the whole process closed-circuit test of one roughing，three cleaning and two scavenging of the raw ore and the gradual return of the middle ore under the determined optimal operating parameters. The spodumene concentrate with Li2O grade of 3.56% and Li2O recovery rate of 73.11% is obtained，and the Li2O grade in the tailings is only 0.12%，and the loss is small.At the same time，satisfactory production in⁃ dexes can be obtained by increasing or decreasing the number of cleaning times according to the actual de⁃ mand of concentrate.

Key words: spodumene, lithium oxide, reverse flotation