有色设备

A systemic conditional test is carried out on germanium enrichment with magnesium salt as germanium precipitator in replacement of tannin extract. The test results show that under such conditions as pH value being around 8.0, temperature at 45℃ and magnesium salt dosage being 2.5 times of theoretical demand, an ideal germanium precipitation rate and enrichment ratio can be obtained; and the method of germanium precipitation using magnesium salt features simple process, low cost and strong practicality, much superior to that using tannin extract in terms of techno-economic indicators.