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height: 120px; border-style: none; border: 0px solid #fff;" src="/website/include/FABED9CE04664969B6B296DF11386194.html"></iframe> <!-- 文章 start--> <div class="container"> <div class="enterprise-info-box"> <div class="enterprise-info-category-descr"> <img src="/resource/website/article/Content/img/enterprise-info-category-descr.jpg" /> <a href="/index.html">首页</a> >> <a href="/website/article/11/index.html">文献频道</a> >> <a href="/website/article/1110/index.html">矿业论文</a> >> 正文 </div> <div class="enterprise-info-mainbody"> <span id="id" style="display: none;">DEC9BE95D11B456396D6C6D409940902</span> <div class="title">从湖南某常温钨中Q选回收萤矌?/div> <div class="sub-title">2019-09-29</div> <!-- D start --> <div class="introduction"> 湖南某大型钨钼铋多金属矿中含有大量的萤石Q现场钼铋等可Q—铋؜—钨“GY 法”Q选流E?的常温Q钨粗选尾矿CaF2含量20.54%Q?200目占82.0%Q主要有用矿物ؓ萤石Q嵌布粒度粗l不均,主要Zl粒Q?与石英、方解石{主要脉石矿物密切共生。ؓ定其中萤石的回收工艺,q行了选矿试验研究。结果表明,试样?Na2CO3为矿pH调整剂兼矿惔分散剂,酸化水玻璃ؓ脉石矿物的抑制剂QBK410为捕收剂Q采?_??_、中?序q回程处理Q最l获得CaF2品位?3.46%、回收率?2.13%的萤石精ѝ按试验定的工艺流E徏讄?矛_收系l运行^E뀁可靠,在给矿CaF2品位?1.... </div> <!-- D start --> <!-- 正文 --> <div class="mainbody"> <div style="display:none"> Series No. 519 ? ? ? ? ȝ 519 ? September 2019 METAL MINE 2019 q第 9 ? ·l合利用· 从湖南某常温钨中Q选回收萤矌? ?? Q湖南柿竹园有色金属有限责Q公司Q湖?郴州 423037Q? ??湖南某大型钨钼铋多金属矿中含有大量的萤石Q现场钼铋等可Q—铋؜—钨“GY 法”Q选流E? 的常温Q钨粗选尾?CaF 含量 20.54%Q?200 目占 82.0%Q主要有用矿物ؓ萤石Q嵌布粒度粗l不均,主要Zl粒Q? 与石英、方解石{主要脉石矿物密切共生。ؓ定其中萤石的回收工艺,q行了选矿试验研究。结果表明,试样? Na CO 为矿?pH 调整剂兼矿惔分散剂,酸化水玻璃ؓ脉石矿物的抑制剂QBK410 为捕收剂Q采?1 _?2 ?6 _、中? 序q回程处理Q最l获?CaF 品位?93.46%、回收率?62.13%的萤石精ѝ按试验定的工艺流E徏讄? 矛_收系l运行^E뀁可靠,在给?CaF 品位?21.20%的情况下Q取得了 CaF 品位?90.17%QCaF 回收率ؓ 59.72% 2 2 3 2 2 2 2 的萤石精矿,新系l不仅提高了资源的利用率Q还Z业创造了显著的经效益? 关键?钨常温Q选尾?萤石 BK410 酸化水玻?? + 中图分类?TD923 .7 文献标志?A 文章~号 1001-1250Q?019Q?09-195-04 DOI 10.19614/j.cnki.jsks.201909032 Experimental Study on Recovery of Fluorite by Flotation from the Tailings of Tungsten Flotation at Room Temperature in Hunan Province 2 Long Bing QHunan Shizhuyuan Nonferrous Metals Co.QLtd.QChenzhou 423037QChinaQ? Abstract A large scale tungsten-molybdenum-bismuth polymetallic ores in Hunan Province contains a large amount of fluorite. After Mo-Bi iso-flotationQBi-S mixing flotation and tungsten“GY”flotation method at room temperature on the siteQ? 2 the grade of CaF from roughing tailings is 20.54% and -200 mesh accounting for 82.0%. Fluorite is the major useful mineral with uneven particle size which is mainly medium-fine grain sizeQand closely associated with major gangue minerals such as quartz and calcite. In order to determine the recovery process of fluoriteQflotation research was carried out. The results showed that with Na as collectorQusing one-roughingQtwo-scavengingQsix-cleaning and middles back to the closed circuit in turnQfluorite concen? trate with CaF grade of 93.46% and recovery of 62.13% was obtained. The fluorite recovery system determined from the experi? ments runs smoothly and reliably. Under the condition of CaF with feeding grade of 21.20%Qthe concentrate of CaF with 2 3 CO as slurry pH regulator and slime dispersantQacidized sodium silicate as inhibitor of gangue mineralsQBK410 2 2 2 grade of 90.17% and recovery rate of 59.72% was obtained. The new system not only improves the utilization rate of resourcesQ? but also creates remarkable economic benefits for enterprises. Keywords Tailings of tungsten flotation at room temperatureQFluoriteQBK410QAcidized sodium silicateQFlotation 萤石是一U战略资源,用途非常广泛,但主要还 矿进行了选回收萤矌验? Q?-2Q? 是用来生产氢氟酸 。世界对氢氟酸的巨大需求导 1 ?? Q? 3Q? 致萤矌源需求量急增 。多q来Q国内外选矿技? 湖南某钨钼铋多金属矿石的选矿原则程为钼 铋等可Q—铋؜—钨“GY法”Q选流E。试样ؓ 现场白钨矿常温粗选尾矿,-200 目占 82.0%Q其中的 主要有用矿物矻I黄铁矿、黑钨矿和白钨矿{? 量Q脉石矿物主要有矌、石榴石、方解石、长? cR云母类、绿泥石、磷灰石{。现场原矿中萤石? Q? 4-5Q? 工作者围l萤石选矿技术开展了大量的研I?Qƈ 取得了许多研I成果,有力地推动了萤石选矿技? 的进步? 湖南某大型钨钼铋多金属矿中伴生有大量的萤 矻IZ提高资源的综合利用率Q对现场常温钨? 收稿日期 2019-04-11 作者简? ?冎ͼ1988—)Q男Q工E师? · 195 · ȝ519? ? ? ? ? 2019q第9? 布粒度粗l不均,主要Zl粒萤石Q粒度ؓ 20~35 μmQ呈条带状分布在矿石中,部分-20 μm 的萤石与 矌、云母、长石等密切qQ单体解d难。试? 主要化学成分分析l果见表1? 82.0%Q水ȝ用量?240 g/tQBK410 ?200 g/tQ试? l果见表3? p 1 可知Q试样中 CaF 量高?45.71%QCaCO 含量也较高,?4.33%。因此, 有效降低萤石_的硅钙含量将是本研究的难炏V? 2 2 的含?20.54%QSiO ? 3 2 试验l果与分? 前期的研I表明:试样中的萤石与石q脉石 矿物的解ȝ度不高,因此Q要高效回收其中的萤? 必L高萤石的单体解离度。另外,试样中的? 石与方解矛_为含钙矿物,对脂肪酸cL收剂而言 从表 3 可以看出Q随着 Na 石粗_CaF 品位相当的情况下CaF 后降低,因此Q确定萤石粗选的Na CO . 1. 3 水玻璃用量试? 萤石选中最常用的脉石矿物抑制剂为水? 2 CO 3 用量的增加,在萤 回收率先升高 用量?00 g/t? 2 2 Q?Q? 它们的可性相?Q因此,定合适的抑制剂和? 收剂Ҏ善萤石精矿指标非帔R要? 2 3 2 2 . 1 _选条件试? 萤石_选条件试验采?ơ粗选流E? 璃,水玻璃对矌、硅酸盐、方解石{脉石矿物都? Q?Q? 很好的抑制效?。水ȝ用量试验固定矿l度 2 . 1. 1 矿l度试验 矿l度试验固定矿浆 pH 调整剂及矿惔分散 2 3 ?200 目占 82.0%QNa CO 用量?300 g/tQBK410 ? 2 3 ?Na CO 用量?300 g/tQ水ȝ?240 g/tQ捕收剂 200 g/tQ试验结果见?? BK410?00 g/tQ试验结果见?? 从表 2 可以看出Q随着矿l度的提高,萤石_? 2 _ CaF 品位幅下降、回收率幅上升。综合? 虑,定萤石_选的矿l度?200 目占 82.0%Q即 该钨可以不磨矿直接Q选萤矟? 从表 4 可以看出Q随着水玻璃用量的增大Q萤? _精?CaF 品位呈先快后慢的上升势QCaF 回收 2 2 2 . 1. 2 Na 萤石选中?Na 2 CO 3 用量试验 3 CO 既是矿浆 pH 调整剂,以维 2+ 2+ 率先幅上升后明显下降。综合考虑Q确定萤石粗 选的水玻璃用量ؓ240 g/t? 2 持矿?pH 的相对稳定,q能消除矿浆?Ca 、Mg {? 2. 1. 4 捕收剂种cd用量试验 lQ选带来的负面影响Q同时还是良好的矿惔分散 脂肪酸类捕收剂是萤石选的常用捕收剂,? 2 3 剂。Na CO 用量试验固定矿l度?200 目占 验对沚w最佳用量情况下的指标与 BK410用量试验 · 196 · ? 冎ͼ从湖南某常温钨中Q选回收萤矌? 2019q第9? 指标q行了比较。捕收剂U类和用量试验固定磨? l度?200 目占 82.0%QNa CO 用量?300 g/tQ水? 璃ؓ240 g/tQ试验结果见?? 2 3 从表5可以看出QBK410用量?00 g/t情况下的 萤石_精矿指标最好,因此Q确定萤石粗选的 BK410 用量?00 g/t? 2 . 2 _N?条g试验 大量的研I与生实践表明Q酸化水ȝ是萤 Q? 7Q? 石精选脉石矿物的有效抑制?。精?1 酸化水玻 璃用量试验给矿ؓ试样Q试验采?1 _?1 _Q选流 E,_选条件见2.1.4节,_N?不再d其他药剂? 2 . 2. 1 酸化水玻璃用量试? 酸化水玻璃用量(以水ȝ质量计,下同Q试? 固定水玻璃与酸的质量配合比??Q试验结果见 ?? 从表6可以看出Q萤石精?随着酸化水玻璃用 2 2 量的增加QCaF 品位呈先快后慢的升高势QCaF ? 收率呈先慢后快的下降势。综合考虑Q确定精? 酸化水玻璃用量ؓ300 g/t? 2 . 2. 2 酸化水玻璃质量配合比试验 ׃不同配合比的酸化水玻璃所呈现的抑制效 果不同,因此有必要确定合适的酸化水玻璃配? 比。试验固定酸化水ȝ的用量ؓ300 g/tQ试验结? 见表7? 验,_N作业酸化水ȝ用量逐序递减U?/3Q最 2 l得?CaF 品位?95.07%、回收率?52.90%的萤? _? 从表7可以看出Q萤石精?随着酸化水玻璃中 2 . 4 闭\试验 在开路试验基上进了全程闭\试验Q试? 2 2 酸比例的下降,CaF 品位先下降后于E_QCaF 回收率先明显上升后开始下降。综合考虑Q确定萤 石精选用水ȝ与硫酸质量配合比?2? 的酸? 水玻璃? 程见图1Q结果见?? 从表 8 可以看出Q采用图 1 所C的程处理? 2 P最l获得CaF 品位?3.46%、回收率?2.13%? 萤石_? 2 . 3 开路试? 在上q试验基上进行了 1 _?2 ?6 _ּ路试 · 197 · ȝ519? ? ? ? ? 2019q第9? _,与石英、方解石{矿物密切共生,单体解离困难? 2Q试样在不磨矿情况下Q以 Na CO 为矿?pH Q? 2 3 调整剂兼矿惔分散剂,酸化水玻璃ؓ脉石矿物的抑 制剂QBK410 为捕收剂Q采?1 _?2 ?6 _、中矉K? 2 q回程处理Q最l获得CaF 品位?3.46%、回收率 ?2.13%的萤石精ѝ? Q? 3Q按试验研究定的工艺流E徏讄萤石? 收系l运行^E뀁可靠,在给矿CaF 品位?1.20%? 情况下,取得?CaF 品位?90.17%QCaF 回收率ؓ 9.72%的萤石精矿,与实验室试验指标较接q。该 2 2 2 5 pȝ的徏设与投不仅提高了资源的利用率,qؓ 企业创造了显著的经效益? ???? Q?Q? ? ? 我国萤石资源与氟化工产业发展形势分析QJQ?化学? 工,2008Q?Q:6-9. Zhang Fang. Analysis of fluorite resources and development situa? tion of fluorine chemical industry in ChinaQJQ?Chemical IndustryQ? 2 008Q?Q? 6-9. Q? 2Q?白林宝,贺y?萤石的开发利用及发展动向QJQ?内蒙古石油化 工,2008Q?4Q:38-39. Bai LinbaoQHe Qiaoling. Development and Utilization of Fluorite QJQ? Inner Mongolia Petrochemical IndustryQ?008Q?4Q? 38-39. Q? 3Q?王占前,?戈,?诚,{?氟化氢生产技术进展EJQ?化工生 与技术,2009Q?Q:1-2. Wang ZhanqianQKuangoQLin ChengQet al. Progress in hydrogen fluoride production technologyQJQ? Chemical production and tech? nologyQ?009Q?Q? 1-2. Q?Q? ? 菁,׃?从黄沙坪低品位钼铋钨选尾矿中选回收萤 3 工业生实践 按试验研I确定的工艺程Q在现场的钨 石的试验研究QJQ?矿冶工程Q?011Q?Q:29-31. Zhou JingQZhu Yimin. Experimental study on flotation recovery of fluorite from low-grade molybdenum bismuth tungsten flotation tail? ings in HuangshapingQJQ? Mining and Metallurgical EngineeringQ? 常温选尾矿Q选萤石系l,其中_选和_N?采用 选柱Q其余精、扫选均采用选机。工业生产实? 表明Q萤石选矿pȝq行q稳、可靠,2016 q?6 月~ 2 011Q?Q? 29-31. Q?Q? ?颖,矛_省,王大鹏,{?选柱分选萤石矿的试验研IӞEJQ? 2 2 5 017q?月的q_生指标为:pȝl矿CaF 1.20%Q萤石精矿CaF 品位?0.17%QCaF 回收率ؓ 9.72%Q与实验室试验指标较接近。该pȝ的徏? 2 品位? 非金属矿Q?009Q?Q:48-50. Zhang YingQShi Changsheng QWang DapengQet al. Experimental study on flotation column separation of fluorite oreQJQ? Nonmetal? lic oreQ?009Q?Q? 48-50. 2 2 与投产不仅提高了资源的利用率Q还可ؓ企业创? 显著的经效益? Q? 6Q?朱徏?萤石选的几个问题QJQ?国外金属选矿Q?004Q?Q:4-9. Zhu Jianguang.Several problems in fluorite flotationQJQ?Metal bene? ficiation abroadQ?004Q?Q? 4-9. 4 l?? Q? 1Q湖南某大型钨钼铋多金属矿中含有大量? 萤石Q现场钼铋等可Q—铋؜—钨“GY法”Q? 程的常温Q钨粗选尾?CaF 含量 20.54%Q?200 ? Q?Q?朱友益,?强,卢寿?酸化水玻璃在萤石选提U中的作? QJQ?矿冶工程Q?996Q?Q:29-32. Zhu YouyiQZhang QiangQLu Shouci. The role of acidized sodium silicate in the flotation purification of fluoriteQJQ? 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