Abstract:In order to solve the problem of insufficient collection capacity and poor low-temperature resistance caused by poor water solubility and dispersibility when a 600 t/d fluorite concentrator uses oleic acid as a collector in winter production in Chengde, the slurry needs to be heated to above 20°C. , leading to problems of high production costs and energy consumption; a new low-temperature fluorspar collector CK-1 was developed by using oleic acid with different high and low iodine values to be sulfonated and compounded-saponified-emulsified. At room temperature in summer, Compared with the original production index, the recovery rate of fluorspar concentrate increased by 0.77%. When the slurry temperature was 12°C in winter, the mineral processing index was obtained when the original summer production slurry temperature was 25°C, reducing the heating cost by 11.03 yuan/ton of raw ore, realizing flotation without heating in winter in the dressing plant, and achieving economic benefits. Significantly; the fluorite mines in Chengde area are mainly quartz-type fluorite with similar ore properties, The annual heating cost for winter production of fluorite in northern China is about tens of millions of yuan, and CK-1 has good promotion and application value in the northern region.