龙蟒集团浮钛捕收剂研究报告

本着高效和成本低的观点,运用选矿协同效应的理论,找出最优的浮钛捕收剂最佳配方,龙蟒MPF开路浮钛优于MOH,龙蟒MPF闭路钛精矿产率42.24%、TiO2含量46.03%、回收率81.53%,MOH闭路钛精矿产率39.86%、TiO2含量45.26%、回收率77.60%。MPF优于MOH,龙蟒浮钛捕收剂MPF闭路钛精矿品位和回收率高于MOH分别0.77%和3.93%,取得了预期效果,并成功运用在工业化生产至今,1个月统计数据表明,在入浮钛品位18.97%、MPF消耗2.05公斤/吨、钛精矿品位产率回收率分别为46.82%、35.95%、87.47%的良好指标。     

云南某低品位钛铁矿选矿试验研究

对云南某低品位钛铁矿进行了选矿试验研究,采用弱磁与强磁相结合的方案进行抛尾,可抛掉Ti O2品位为1.18%、产率为81.11%的尾矿,获得Ti O2品位为12.38%、Ti O2回收率为64.50%的抛尾精矿;抛尾精矿采用高梯度磁选预选获得Ti O2品位为22.29%、对原矿回收率为57.16%的强磁选精矿;以MOH为钛铁矿捕收剂,采用一粗三扫三精浮选流程对高梯度磁选精矿进行浮选,最终可获得Ti O2品位为45.46%、Ti O2总回收率为49.31%的钛铁矿精矿。     

混合捕收剂在低品位钛铁矿浮选中的应用

针对某种低品位钛铁矿,该矿通过原矿分级-强磁-重选-混合强磁流程获得。根据入浮原矿的性质,采用攀枝花地区某选厂的粗、细粒捕收剂按照一定比例进行配制后的混合捕收剂对其进行回收。研究结果表明,混合捕收剂具有的选择性和捕收能力均高于某一种粗或细粒捕收剂的优点,大大提高了粗钛精矿的产率和品位,有利于精矿作业,最终获得Ti O2品位达到47%以上的钛精矿,提高了钛精矿的回收率。     

乳化煤油对钛铁矿浮选的辅助捕收效果

以乳化煤油作为辅助捕收剂对某辉长岩型钛铁矿进行了浮选试验研究, 探索了H₂SO₄用量、MOH用量、乳化煤油用量对钛铁矿浮选分离效果的影响, 并进行了浮选闭路试验。以乳化煤油作为钛铁矿浮选的辅助捕收剂, 通过一粗两扫四精闭路浮选流程, 获得了TiO₂品位47.21%、回收率79.93%的钛精矿。乳化煤油对钛铁矿具有良好的辅助捕收效果, 可降低捕收剂MOH用量, 并显著提高精矿品位。     

甘肃大滩某低品位钛铁矿石选矿试验

甘肃大滩某低品位钛铁矿主要有价元素为铁和钛,TFe品位为12.07%,Ti O2含量为5.56%,有害元素硫、磷含量较低。钛主要分布在钛铁矿中,分布率为81.82%,是回收的主要目的矿物。为确定该资源的合理开发利用方案,对其进行了磁选—浮选试验研究。结果表明,原矿磨细至-0.074 mm占38%,在粗选磁场强度为605.1 k A/m、精选磁场强度为565.3 k A/m条件下,经1粗1精磁选可以获得Ti O2品位为18.13%、对原矿回收率为76.79%的磁选精矿,磁选精矿采用自主复配合成的高效捕收剂EMG和新型抑制剂SF-101经1粗2精1扫闭路浮选试验可以获得Ti O2品位47.46%、回收率88.08%的钛精矿,对原矿回收率为67.63%,可以为该钛铁矿的选别提供借鉴。     

螺旋溜槽选矿机回收钛精矿的试验研究

对河北承德某钛铁矿进行了选矿试验研究。采用螺旋溜槽粗选、摇床精选,粗钛精矿经浮选脱硫,脱硫尾矿再浮钛的工艺流程,可以获得品位47.09%、产率3.39%、回收率26.26%的钛精矿,同时获得品位40.03%、产率1.08%、回收率57.65%的硫精矿。     

山东某金红石矿综合利用试验研究

针对山东某金红石矿的性质和特点,对重选中摇床产品进行了研究,摇床精矿再摇床可得到产率17.47%,TFe品位66.69%,Ti O2含量10.51%,铁回收率49.54%,Ti O2回收率32.56%的铁精矿。摇床尾矿浮选,采用一粗一精一扫工艺流程,可以得到TFe品位26.78%,Ti O2含量11.95%,铁回收率4.04%,Ti O2回收率7.52%的金红石精矿,同时回收了铁和钛,为该矿选矿工艺的选择和开发提供合理的工艺参数和指标。     

攀枝花低品位钒铁磁铁矿钛组合捕收剂研究

攀西地区钛回收瓶颈是日益开采的钒钛磁铁矿且呈现贫细杂特性和钛捕收剂开发缓慢。本文以MOH为基体,与水杨羟肟酸、油酸钠、煤油和氧化石钠皂按比例进行混合研究组合捕收性能,MOH与煤油组合产生正协同效应。采用LT捕收剂,确定pH值=4.5 ～ 5.5,矿浆浓度为25%,用量1800 g/t,弱-强磁选和浮选脱硫富集,一粗五精两扫的闭路流程,获得了TiO_2品位40.35%、回收率85.13%的钛精矿。为低品位钒钛磁铁选钛提供经济技术基础。     

某钒钛磁铁矿尾矿回收钛和磷的试验研究

某钒钛磁铁矿选铁尾矿中含TiO27.14%、P2O51.92%,为提高资源综合利用率,进行了从该尾矿中回收钛和磷的试验研究。试验研究结果表明,经过强磁—摇床提钛以及尾矿浮选选磷工艺后,最终可以获得产率为21.99%、TiO2品位为24.45%、回收率为74.16%的粗钛精矿以及产率为3.43%、P2O5品位为38.48%、回收率为68.81%的磷精矿。     

陕西某超贫钒钛磁铁矿石选铁试验研究

陕西安康某磁铁矿石主要含铁矿物为磁铁矿和钛磁铁矿,主要脉石矿物为橄榄石、长石、辉石。矿石破碎至-6 mm后,在磁场强度为358.2 k A/m条件下进行粗粒干式抛尾,可获得铁品位为16.81%、回收率为90.80%的预选精矿,抛出产率为16.67%、铁品位为8.52%的合格尾矿。预选精矿经两段阶段磨矿阶段磁选试验,获得的铁精矿铁品位为61.22%、Ti O2品位为2.39%,铁回收率为36.69%、Ti O2回收率为6.47%,尾矿Ti O2含量为3.87%、回收率为85.77%。该工艺不仅可以较好地回收利用磁性铁矿物,还有利于后续选钛。     

New energy vehicle:an opportunity for rare earth magnets

<正>Extracted from Securities Guide 1.Popularity of new energy vehicles—an irresistible market trend1.1 Progress of new energy vehicles Chinese Premier Li Keqiang said recently on a visit to Xi'an BYD Autos that new energy vehicles,especially new energy bus,can lessen environment and noise pollution.He encouraged the use of new     

China rare earth market review

正November 1~10,2014Chinese rare earth market was still inactive.Demand for rare earth products was weak.Consumers took a wait-and-see attitude for lower price.As it was an off season for rare earth products,it was expected that prices of rare earth could continue turbulence at the bottom in short terms.Due to a sharp drop,demand for rare earth from downstream recovered.Affected by new energy vehicles,wind powder and energy-efficient appliances,production of rare earth permanent     

China rare earth market review

正August 1~10,2014 There was some good news in rare earth industry recently.Restructuring plans of rare earth groups led by Baotou IronSteel Group and Xiamen Tungsten Group respectively have been approved by MIIT.And rare earth storage policy,which had been expected for a very long time,has been launched officially.Pushed by the good news,rare earth price started to rebound since August 5.Price of didymium oxide and dysprosium oxide rose about 1% to 2%,averagely.About 10% of     

China rare earth market review

正July 1~10,2014Due to weak demand from downstream industry and slow transactions,rare earth market remained weak and price of rare earth products continued to decline.There was no sign of recovery in downstream market.The market of NdFeB magnetic materials and phosphor was depressed.Catalyst,     

注浆加固技术在十三矿-685 m进风大巷中的应用

针对煤矿开采深度不断向深部延伸，掘进巷道受深部高应力的影响越来越大，巷道围岩整体稳定性差，矿山压力显现越剧烈现象，一般锚网喷加锚索支护无法从根本上控制巷道的变形。总结了平煤股份十三矿-685 m进风大巷注浆加固技术，依据对巷道掘进之后变形监测数据的采集，对巷道变形机理进行分析研究，并对注浆时段进行了合理选择，在对巷道的注浆工艺进行了充分论证的基础上，对巷道进行了注浆。注浆后效果表明:巷道滞后注浆时间段的选择非常重要，巷道在恰当的时间内进行注浆加固施工，能有效控制巷道的变形，巷道注浆后变形量明显减小，岩体的稳定性明显增强，减少了巷道日常维修工作，降低了矿井的生产成本，保障了矿井的安全生产。     

Brief news

正China Minmetals Rare Earth Construction of Jianghua Separation Plant is set to complete at the yearend Civil works of Jianghua Separation Plant have been finished and the company is installing and debugging equipments now.It is estimated that construction of Jianghua Separation Plant will be     

Brief news

正Total transactions of rare earth in Rare Earth Ex-change Center of Hunan South Rare and Precious Metal Exchange neared 40 billion yuan from January to October From the opening in January of this year to the end of October,the total transaction of rare earth products in Rare Earth Exchange Center of Hunan South Rare and Precious Metal Exchange neared40 billion yuan.There are 16 varieties including dysprosium oxide and terbium oxide traded on the exchange center,one of the largest trading platforms for rare earth oxides in China.     

Theoretical basis for optimal collector concentrations and pulp pH values during flotation of sulfide-free minerals

A hypothesis that associates optimal conditions of mineral flotation with a zero charge of their surface is put forward. This hypothesis serves as a basis for a methodology to obtain and verify quantitative physical-chemical models for a minimal necessary concentration of a collector during flotation of sulfide-free minerals. These models may be of use for upgrading engineering processes of flotation and as a job for the concentration plant automation systems. __________ Translated from Fiziko-Tekhnicheskie Problemy Razrabotki Poleznykh Iskopaemykh, No. 2, pp. 89–99, March–April, 2006.     

基于LPWAN技术的采煤沉陷区杆塔倾斜监测系统

随着地下采煤活动不断加大，越来越多的输电杆塔不可避免地被建设在煤矿沉陷区。目前，现有手段采用靠人力去进行定期检查一定会浪费大量的人力和物力，因而需开展对位于煤矿沉陷区的杆塔进行实时在线检测。基于NB-IoT和LoRa提出了一种新的算法——低功耗广域网（LPWAN）技术，提出了一种新型的输电杆塔倾斜监测系统，其中包含1个主节点和多个子节点，以适应地域广和远距离的需求信息监控。该系统通过LoRa多节点网络的数据传输，将杆塔的倾斜参数通过NB-IoT上传至在线实时监控系统。管理人员可以从后台得出监测数据并分析结果，及时对处于煤矿沉陷区的有故障的输电杆塔进行针对性的维护。     

矿井摩擦式提升机制动力补偿装置的设计

讨论了在煤矿提升机二级制动的基础上 ,对制动力矩进行补偿 ,保证提升机紧急制动时的减速度维持在《煤矿安全规程》规定的范围内。