介绍了由粗铟生产制备高纯铟的几种方法 ,包括升华法、区域熔炼法、真空蒸馏法、金属有机物法、离子交换法、萃取法、电解精炼法等。采用预先纯化和电解精炼相结合的方法 ,控制电解液成分以及电解条件 ,可除去粗铟中的大部分杂质 ,所得铟产品的纯度符合国家In -0 5标准 Several methods for producing high purity indium from crude indium are introduced, including sublimation method, zone melting method, vacuum distillation method, metal organic method, ion exchange method, extraction method and electrolytic refining method. Using a combination of pre-purification and electrolytic refining, the electrolyte composition and the electrolysis conditions can be controlled to remove most of the impurities in the crude indium. The purity of the obtained indium product conforms to the national In -0 5 standard