Research and application of new SEC self-emulsifying collector for slime flotation

To know the true flotation effect of SEC,take the slime of Datun coal preparation plant as research object,and based on the analysis of its characteristics,conducted the flotation contrast test using the collector SEC,diesel oil,CLM1^#,CLM2^#,Nalco and GF foaming agent,and investigated the best dosage of SEC and GF. The results show that the collecting ability of SEC is stronger than that of other agents. For coal slime in Datun coal preparation plant,with the dosage of SEC is 300 g/t and GF is 75 g/t,the clean coal yield is 74. 63%,ash content is 8. 51% and the perfection index is 57. 91%.Compared with diesel oil,using SEC can save more than 2/3 dosage of agent.