雷晓明（1986—），男，工程师，423000湖南省郴州市。湖南柿竹园萤石矿石选矿试验研究雷晓明（湖南柿竹园有色金属有限责任公司）摘要湖南柿竹园东波选矿厂的钨浮选尾矿中的有价成分CaF2含量达21.40%，萤石矿物含量为20.40%，主要脉石矿物为石榴石、长石、云母，其次是方解石、角闪石和磷灰石等；-0.075mm占69.42%，萤石在-0.030mm粒级有明显的富集现象，0.15～0.075mm粒级萤石解离度达83%左右，-0.075mm粒级萤石解离度则超过90%，试样整体萤石解离度达93.5%。受工艺技术因素的影响，萤石回收率不足60%，为解决该问题进行了选矿试验研究。结果表明，现场钨尾矿采用1粗8精、精选2和精选3尾矿合并扫选、扫选精矿返回精选3作业、其余中矿顺序返回闭路流程处理，最终获得CaF2品位为91.40%、CaF2回收率为71.47%的萤石精矿，达到了良好的萤石回收效果。关键词钨浮选尾矿萤石方解石DOI：10.3969/j.issn.1674-6082.2023.08.031StudyonMineralProcessingofShizhuyuanFluoriteOreinHunanLEIXiaoming（HunanShizhuyuanNonferrousMetalsCo.，Ltd.）AbstractThevaluablecomponentCaF2contentinthetungstenflotationtailingsofShizhuyuanDong⁃boconcentratorinHunanProvinceis21.40%，andthefluoritemineralcontentis20.40%.Themainganguemineralsaregarnet，feldsparandmica，followedbycalcite，hornblendeandapatite.Thecontentof-0.075mmaccountsfor69.42%，andthereisasignificantenrichmentphenomenonoffluoriteinthe-0.030mmparticlesize.Thedissociationdegreeoffluoritein0.15～0.075mmgrainsizeisabout83%，andthedissoci⁃ationdegreeoffluoritein-0.075mmgrainsizeismorethan90%.Theoveralldissociationdegreeoffluoriteinthesamplereaches93.5%.Duetotheinfluenceoftechnologicalfactors，therecoveryrateoffluoriteislessthan60%.Inordertosolvethisproblem，thebeneficiationtestwascarriedout.Theresultsshowedthattheon-sitetungstentailingsweretreatedbyoneroughingeightcleaning，cleaning2andcleaning3tailingscombinedscavenging，scavengingconcentratereturningtocleaning3operations，andtherestofthemiddleorereturningtotheclosed-circuitprocessinorder.Finally，thefluoriteconcentratewithCaF2gradeof91.40%andCaF2recoveryrateof71.47%wasobtained，whichachievedgoodfluoriterecoveryeffect.Keywordstungstenflotationtailings，...
