关键词: 正丁基铵黑药, 异丁基铵黑药, 浮选, 铅锌矿浮选

Abstract: Ammonium di-iso-butyl dithiophosphate and ammonium di-n-butyl dithiophosphate is isobutyl isomers, they have the same molecular formula, only alkyl isomers. According to the principle of isomeric chemistry, when organic substances have the same molecular formula and the same functional groups, their chemical and physical properties are very similar. The flotation performance of flotation reagents are fully affected by its physical and chemical properties, so the flotation performance of isomers should be very similar. Therefore, some sort of flotation reagent's isomers with features of wide source, low price, easy to be synthetic, and low toxicity can always filter out the better flotation reagents. In this paper, by synthetizing the isomer of ammonium di-n-butyl dithiophosphate -ammonium di-iso-butyl dithiophosphate and by using these two isomers respectively as collector to make a flotation for lead-zinc ore. The test results show that the argument above mentioned is correct.