Collecting agent

The invention belongs to the field of collecting agents, and particularly relates to a collecting agent. The collecting agent is formed by mixing butanol, phosphorus pentasulfide, ammonia gas, sodiumisopropyl xanthate, dimethyl sulfate, monoethylamine and a synergist, wherein the synergist is one or more selected from a group consisting of 15,15'-bi-1,4,7,10,13-pentaoxacyclopentadecane, 2,4,7,9-tetramethyl-5-decyne-4,7-diol, 3-(1,3-dihydroxyisopropyl)-1,5,8,11,14,17-hexaoxacycloundecane, octaethylene glycol monododecyl ether, heptaethylene glycol, and heptaethylene glycol monododecyl ether. The collecting agent is good in collecting effect and especially good in selectivity, can efficiently separate out copper in poor, mixed and fine copper ore in a floating mode, and can improve a concentrate grade. 本发明属于捕收剂领域，具体涉及一种捕收剂，由丁醇、五硫化二磷、氨气、异丙基黄原酸钠、硫酸二甲酯、一乙胺和增效剂混合而成；所述增效剂为15,15'-Bi-1,4,7,10,13-五氧杂环十五烷；2,4,7,9-四甲基-5-癸炔-4,7-二醇；3-（1,3-二羟基异丙基）-1,5,8,11,14,17-六氧杂环十一烷；辛乙烯二醇单正十二烷基酯；庚乙二烯乙二醇；十二烷基七聚乙二醇醚中的一种或多种。本发明的捕收剂捕收效果良好，选