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1)  rare-earth metal ore
稀土金属矿
2)  rare-earth mineral
稀土(金属)矿物<冶>
3)  Rare metals and RE deposits
稀有稀土金属矿床
4)  rare and rare earth metal ore deposit
稀有和稀土金属矿床
5)  rare earth metal
稀土金属
1.
A Study on Rare Earth Metal Microalloying of Alloy Steel;
合金钢的稀土金属微合金化研究
2.
Through coordination-induced method, the process of micellization via rare earth metal Eu(Ⅲ)- bipyridine (bpy) with block copolymer of PEO-b-PAA (PEO113-b-PAA82) in different solvents [V(H2O)∶V(alcohol)=7.
研究了稀土金属铕(Ⅲ)-联吡啶(bpy)有机配合物与双亲水性两嵌段聚合物聚乙二醇-聚丙烯酸(PEO113-b-PAA82)在不同溶剂中[V(水)∶V(乙醇)=7。
3.
The additives include rare earth metals such as La and Ce and transitional metals such as Zr and Cu.
采用固定床微反应器装置,考察了添加稀土金属(La,Ce)和过渡金属(Zr,Cu)助剂及助剂添加量对甲烷自热重整制氢反应的影响。
6)  rare earth
稀土金属
1.
New rare earth and buckminsterfullerene complex, C 60 [La(Gly) 2] 2(ClO 4) 6 has been synthesized, and characterized by UV VIS, IR and elemental analysis.
合成了稀土金属富勒烯配合物C60 [La(Gly) 2 ]2 (ClO4) 6,并用IR、UV VIS、元素分析等手段对其进行了表征 。
2.
Zn/HZSM-5 as catalyst to the carrier, the active component impregnation La, Ce, Pr and Tb were introducted, rare earth elements on the catalytic activity of different components were filtered.
催化剂以Zn/HZSM-5为载体,通过浸渍法将活性组分La、Ce、Pr和Tb等引入催化剂,对催化剂不同稀土金属元素活性组分进行了筛选。
3.
Stoichiometric amounts of rare earth nitrate:La(NO3)3,Sm(NO3)3,Eu(NO3)3,Gd(NO3)3 and Fe(NO3)3·9H2O were thoroughly mixed,active carbon was used as the template,polyvinyl alcohol(PVA) and urea were introduced as the inhibitor and the homogeneous precipitator,respectively.
以稀土金属硝酸盐La(NO3)3、Sm(NO3)3、Eu(NO3)3、Gd(NO3)3和Fe(NO3)3。
补充资料:稀土金属矿
分子式:
CAS号:

性质:又称稀土金属矿,简称稀土矿。主要的稀土矿物为氟碳铈矿、独居石、磷钇矿、褐钇铌矿、离子吸附型稀土矿等。一般品位指标见表。露天开采者居多。采用重选、磁选、浮选或化学选等方法选矿。可用作合成橡胶、人造纤维的催化剂以及杀虫灭菌剂、稀土微量元素肥料、医药等。广泛用于冶金、石油、电子、玻璃、陶瓷、核工业等部门。矿床类型边界品位工业品位原生矿/%氧化铈  0.5氧化铈  1.0 氧化钇  0.05~1.0砂矿、风化矿(矿物)/(g/cm3)独居石  100~200独居石  300~500磷钇矿  30磷钇矿  50~70离子吸附矿(稀土氧化物)/%重稀土0.050.08轻稀土0.070.1

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