Bastnaesite相关论文
The mechanism of phthalic acid,a dicarboxylic acid collector,in flotation separation of fluorite and rare earth (RE) was......
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In order to efficiently use the valuable elements in bastnaesite concentrate and optimize current decomposition process,......
Extraction and separation of Ce(Ⅳ),F(Ⅰ)and Th(Ⅳ)from sulphuric acid leaching of bastnaesite by a nov
Bastnaesite is a main kind of rare earth resources in which cerium accounts for more than 50%of the total rare earths....
A comparative investigation into floatability of bastnaesite with three di/trialkyl phosphate surfac
Flotation separation and recovery of rare earth minerals (REM) have returned to an important position due to the growing......
Reaction mechanism of fluoride conversion into BF4-during sulphuric acid leaching of roasted bastnae
The bastnaesite used in hydrometallurgy usually contains 7％-11％fluorine,and the conversion of fluo-rine into high-value pr......
Isoconversional kinetic analysis of decomposition of bastnaesite concentrates with calcium hydroxide
Isoconversional methods combined with thermogravimetry were applied to investigate the decompo-sition kinetics of bastna......
Structural and electronic properties of bastnaesite and implications for surface reactions in flotat
The structural and electronic properties of bastnaesite were studied by using the first-principles method based on the d......
The phase transformation in calcification process was investigated by X-ray diffraction(XRD) and differential scanning c......
研究了硫酸浸出德昌稀土与天青石共伴生矿的焙烧矿过程.考查粒度、搅拌速度、硫酸浓度和温度对稀土浸出率的影响,并对稀土的浸出动......
The properties of rare earth partitioning in Chinese industrial rare earth ores were analyzed. Rare earth ores can be di......
四川省德昌县大陆槽稀土矿主要稀土矿物为氟碳铈矿,其嵌布粒度细,与其他矿物嵌布关系复杂;萤石、重晶石、锶钡硫酸盐矿物等伴生矿......
氟碳铈矿型稀土矿浮选,一般需脱泥预处理后用芳香烃羟肟酸或改性羟肟酸等捕收剂在一定条件下浮选可获得合格的氟碳铈精矿[1-3]。四......
在氟碳铈矿与独居石浮选分离中铝盐作调整剂能强烈抑制独居石而使氟碳铈矿与独居石得到有效分离。在白云鄂博混合稀土精矿浮选分离......
四川某稀土矿RexOy品位为6.62%,稀土矿物主要为氟碳铈矿,脉石矿物主要为萤石、重晶石及石英、角闪石,采用摇床—浮选工艺进行选别,......
冕宁稀土矿是我国西南地区的大型轻稀土矿床。它不仅含有丰富的轻稀土,而且铕、钇等中重稀土较国内外同类型矿床高。该矿的特点是......
氟碳铈矿选矿需要解决两个问题：一是稀土矿物与其伴生矿物钙、钡、锶矿物的分离技术。二是微细粒稀土矿物回收技术，本研究确定的粗－细......
介绍了氟碳铈矿浮选的捕收剂和组合使用捕收剂产生协同效应的原理，对微山稀土矿组合应用ＸＰ－２和ＣＨ两种捕收剂的研究表明，较单一用药提高了浮......
四川德昌大陆槽稀土矿开发利用过程中堆积的稀土尾矿有用矿物含量多,如不合理利用,不仅造成资源浪费,还会污染环境。对德昌大陆槽......
本文着重研究了微山稀土矿深部矿石回收氟碳铈镧矿的方法及其工艺特点和浮选规律.在碱性介质中采用L102、水玻璃和铝盐组合药剂,可......
本文对氟碳铈镧矿中与富镧稀土分离的新工艺进行了研究，分离出来的富镧稀土，经适当配比可满足制取储氢合金的要求，本文还对优溶和氧化......
通过?-电位,红外光谱及量子化学计算结果研究了N-羟基邻苯二甲酰亚胺对氟碳铈矿的浮选性能结果表明,前者对氟碳铈矿具有良好的浮选......
氟碳铈矿矿样经高氟酸分解、脱硅后，稀土元素以氢氧化物和草酸盐形成进行沉淀与干扰元素分离，氢氧化物沉淀使稀土与钙、镁分离，草酸盐......
攀西地区以喜马拉雅期稀土碱性杂岩的控岩控矿构造裂隙 ,霓石英碱正长岩和霓辉正长 (斑 )岩高位小侵入体 ,碱性伟晶岩、霓辉萤石锶......
考察盐酸浓度、浸出温度、液固比和矿物粒度对浸出速度的影响。结果表明：在盐酸浓度6mol/L、浸出温度90℃、液固比15：1、矿物粒度25......
采用单矿物试验的方法，分别以油酸钠和十二烷基磺酸钠为捕收剂，研究了氟碳铈矿的浮选行为，并通过红外光谱研究了油酸钠和十二烷基磺酸......
本文研究的氟碳铈矿产于四川牦牛坪大型稀土矿床中,呈六方自形—半自形板状、柱状、他形粒状,粒度0.1—10mm。矿物为淡黄色,实测比......
用四川冕宁天然氟碳铈矿晶体为原料，研究其热分解过程。测定了粉状氟碳铈矿空气气氛下热分析过程的热重－差热曲线。根据Ｃｒｉａｄｏ提出的反应动......
研究了二(2-乙基己基)磷酸(DEHPA)从含氟硫酸稀土溶液中萃取Ce4+ 过程中生成第三相的组成, 运用X荧光光谱法和化学法测定了有机相......
四川氟碳铈矿是我国重要的轻稀土矿产,其富含铈、镧、钕、镨等用量广泛的轻稀土元素。目前我国稀土永磁的消费量占稀土材料的用量......
内蒙古白云鄂博的氟碳钙铈矿,经电子衍射研究,观察到三种多型:4H,P6α=7.12 c~=56.4 ;6R,R3α=7.12 c~=84.6 ;3R,R3α=7.12 c~=......
针对氟碳铈矿浸出液直接萃取提铈过程中 F-, Fe3+等杂质的存在造成的有机乳化问题, 重点研究了焙烧矿在稀硫酸浸出过程中铈和铁的......
德昌大陆槽稀土矿主要稀土矿物为氟碳铈矿，嵌布粒度细，与天青石，重晶石，萤石，褐铁矿共生关系密切。矿物工艺特性研究说明，氟碳铈矿在磁性......
本文研究了冕宁氟碳铈精矿加分解助剂进行了烧时的温度，时间及分解助剂用量对稀土提取率的影响，研究了对焙烧矿进行水洗除氟过程中水......
ＳｃａｎｎｉｎｇＡｎａｌｙｓｉｓｏｆＲＥＥｉｎＢａｓｔｎａｅｓｉｔｅｗｉｔｈＳｙｎｃｈｒｏｔｒｏｎＲａｄｉａｔｉｏｎＸ－ＲａｙＦｌｕｏｒｅｓｃｅｎｃｅＭｉｃｒｏｐｒｏｂｅＡｎＱｉｎｇｘｉａｎｇ（安庆骧）；ＷａｎｇＲｕｉｂｉｎｇ（王锐兵）；ＤｅｎｇＳａ.........
The flotation behaviour and mechanism of bastnaesite with N-hydroxyl phthalicimidewere investigated by ξ-potential meas......
Rare earths were not mined domestically in 2016. Bastnaesite, a rare-earth fluorocarbonate mineral, was previously mined......
Compositional Variations and Its Implications of a Bastnaesite Crystal,Mianning County,Sichuan Provi
ＣｏｍｐｏｓｉｔｉｏｎａｌＶａｒｉａｔｉｏｎｓａｎｄＩｔｓＩｍｐｌｉｃａｔｉｏｎｓｏｆａＢａｓｔｎａｅｓｉｔｅＣｒｙｓｔａｌ，ＭｉａｎｎｉｎｇＣｏｕｎｔｙ，ＳｉｃｈｕａｎＰｒｏｖｉｎｃｅＷｕＣｈｅｎｇｙｕ（吴澄宇），ＹｕａｎＺｈｏｎｇｘｉｎ（袁忠信.........
单体氟碳铈矿在６００℃焙烧２ｈ，铈的氧化率大于９０％；用稀硫酸浸出，稀土的浸出率大于９５％；用氨水回调，氢氧化铈沉淀中，铈的收率大于９５％，ＣｅＯ２／ＴＲＥＯ约为８３％。......
