Study on selective flotation of copper ores with high sulfur content using E908 collector

Study on the differential flotation of copper ores with high sulfur content in weak alkali medium using E908 collector, humic acid sodium salt depressor. The test results show that, compared with other reagent, E908 collector shows a higher collecting capacity and a better selectivity, humic acid sodium salt are taken as a highly effective depressant to the pyrite in flotation of copper ores. The result of whole closed circuit gained the copper concentrate with copper grade and recovery 19.87% and 87.76%, and obtained silver grade and recovery 605.84g /t and 84.51%.