独居石
- Monazite;edwardite;eremite;urdite;edwardsite
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矿物的晶体结构与独居石相同,X射线粉晶衍射数据亦相近似,该矿物是次生成因的。
Their X-ray powder diffraction data ( except for intensity ) are approximately the same . The mineral may be of secondary origin .
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矿体呈层状,平均厚0.92-1.66m,锡石平均品位632~1229g/m3。伴生锆石、独居石。
The body is in stratiform with an aVerage thickness of 0.92-1.66 m and a mean grade of 632-1229g / cm3 . Zircon and monazite are the associated minerals in the deposit .
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CaO-NaCl焙烧分解独居石的研究
Study of Roasting Decomposition of Monazite in CaO - NaCl
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用XRD和TGDTA热分析技术,研究了含独居石和氟碳铈镧矿的混合稀土精矿在100~1000℃焙烧过程中,添加CaO,NaCl时,REPO4和REFCO3的分解反应。
The reaction of the mixed rare earth concentrate including monazite ( REPO_4 ) and bastnaesite ( REFCO_3 ) decomposed by CaO and NaCl additives in the temperature of 100 ~ 1000 ℃ was studied by means of XRD and TG-DTA .
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递增变质作用形成的变质岩中含有丰富的独居石副矿物,而且Th-U-Pb含量比较高,适合电子探针独居石化学法定年。
There are abundant accessory minerals-monazite with high content of Th-U-Pb in rocks formed by such progressive metamorphism .
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磷钇矿和独居石的U-Pb定年结果表明,成矿年代为112~97Ma,成矿作用可能持续了16Ma以上。
According to U-Pb dating on xenotime and monazite , the mineralization took place during 112 to 97 Ma and last for at least 16 million years .
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电子探针独居石Th-U-Pb化学法定年是近年来发展起来新的定年方法。
Electron-microprobe Th-U-Pb chemical age determination of monazite is a new in-situ geochronological method developed over the last few years .
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水洗氟碳铈-独居石混合精矿的焙砂,过滤并在空气中固化得到氯化产物,在550℃,O2+H2O气氛下氧化反应90min,实现稀土元素和非稀土元素、铈和非铈稀土元素的分离。
The subsequent oxidation of the solid chloride mixture in the wet air at 550 ℃ for 90 min may result in the separation of rare earth elements and non-rare earth elements , and the separation of Ce and non-Ce elements .
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独居石具有十分特征的拉曼和红外光谱,特别是PO3-4在拉曼光谱中的υ1、υ3谱带和在红外光谱中的υ1、υ4谱带是独居石区别其它磷酸盐矿物的重要标志。
The monazites have marked spectral characteristics , especially their υ 1 , υ 3 Raman bands and υ 1 , υ 4 infrared absorption bands . The characteristics can distinguish between monazite and other phosphate minerals .
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独居石与氟碳铈矿浮选分离新工艺的研究表明,以单烷基磷酸酯(P538)作捕收剂,柠檬酸作调整剂,能有效地使独居石与氟碳铈矿浮选分离。
In this paper a new technique for separating monazite from bastnaesite by flotation is described . The results show that the separation of monazite from bastnaesite can be effectively realized with mono-alkyl ester phosphoric acid as a collector and citric acid as a regulato (?)
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我国首次发现的钕独居石
The first discovery of monazite - ( nd ) in China
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白云鄂博独居石的光致发光谱和吸收谱研究
Study on Visible Photoluminescence and Absorption Spectra of Monazite in Bayan Obo
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氟碳铈矿-独居石混合精矿分离提取稀土元素
Rare Earth Extraction and Separation from Bastnaesite-Monazite Mixed Concentrate by Chemical Vapor Transport
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氟碳铈-独居石混合矿中钍的分离
Separation of Thorium From Mixed Bastnaesite - Monazite Concentrate
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氧化钙分解人造独居石的反应机理
Reaction Mechanism of Synthetic Monazite Decomposed by CaO
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轻稀土元素主要赋存于褐帘石和独居石中,重稀土元素主要赋存于褐钇铌矿等矿物中。
LREE are mainly in orthite and monazite , HREE are mainly in fergusonite etc.
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独居石的电子探针钍-铀-铅化学测年
Th-U-TPb Chemical Dating of Monazite by Electron Probe
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独居石中铀铁钍稀土萃取分离的研究
Extraction-separation process for u , fe , th and rare earth elements in monazite
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海滨砂矿选钛尾矿中独居石和锆石与钛铁矿的分离研究
Research on separation technology of monazite and zircon from ilmenite in the beach placer ilmenite
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海滨砂矿中钛铁矿、金红石、独居石与锆英石浮选分离的研究
Research on flotation separation of ilmenite , rutile , monazite and zircon from beach placer
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大连地区前寒武纪沉积岩中发现自生独居石及其意义
Discovery of Authigenic Rare Earth Mineral-Monazite in Precambrian Sedimentary Rock of Dalian Area and its Significance
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阿尔泰202号伟晶岩脉中的富钍独居石
Th-rich monazite in Altai pegmatite No.202
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独居石中钍的极谱滴定
POLAROMETRIC titration of thorium in monazite
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用薄层层析法分离、测定独居石中各轻稀土元素的研究
Separation and Quantitative Determination of various Cerium Sub-group Elements in Monazite Sand by Thin-layer Chromatography and Densitometric Method
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岩浆形成后还可能发生过斜长石、锆石、磷灰石、独居石、褐帘石等副矿物的结晶分离。
Moreover , the fractionation of plagioclase and accessory minerals such as zircon , apatite , monazite and allanite occured .
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可见光吸收谱表明独居石对可见光的吸收也与矿物中的Nd3+有关,Nd3+的吸收是独居石呈色的根源。
The absorption spectra indicate that the color of the mineral also stem from absorption transitions of Nd 3 + .
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脉石矿物主要为石英,还有磷灰石、独居石、绿泥石、高岭石和金红石等。
Gangue minerals are mainly quartz , as well as apatite , monazite , chlorite , kaolinite , and rutile .
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本文介绍对运输稀土精矿(氟碳铈镧-独居石)的全钢敞车表面放射性污染水平的监测结果。
This paper presents monitoring results of radioactive contamination level of steel open wagon surface resulted from transporting fine rare earth minerals .
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稀土属金属元素,用于激光中,见于磷灰石、独居石、磷钇矿和硅铍钇矿中。
A metallic element of the rare earth group ; used in lasers ; occurs in apatite and monazite and xenotime and ytterbite .
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本文对包头矿(氟碳铈矿和独居石)在萃取分离稀土工业中所产生的氯化铵废水进行了分类。
This paper classified the Ammonium chloride waste water in the extraction and separation of Baotou Rare Earth ores ( Bastnasite and Monazite ) .