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Recent years,the crystal of gallium arsenide and gadolinium gallium garnet crystals has been used in the preparation of lighting,display,laser and solar cell. This paper took the experiment of gallium extraction used TBP(tributyl phosphate) as the extractant,in the circumstance of microemulsion. The microemulsions,which contained cationic surfactant oranionic surfactant,were composed of CTAB/n-butanol/n-heptane/HCl(solution) or NaOL/n-pentanol/n-heptane/HCl(solution). The experiment showed that,in a pretty short time,both microemulsion systems achieved an extraction rate of 99%. In the last,the paper compared the mechanism of two systems,and raised some conclusions.