金红石的

The technology of separating rutile and almandine by flotation and the action mechanism of sodium hexametaphosphate[(NaPO3)6], a regulator, were investigated for realizing an effective separation of rutile and almandine, a main gangue mineral, in non-pollution.

为了实现金红石与主要脉石矿物石榴石在无污染条件下的有效分离，采用浮选方法研究了金红石和石榴石的分离，并采用红外光谱和X光电子能谱分析等手段研究了分离过程中调整剂六偏磷酸钠的作用机理。

TiO_2 is a very important wide bandgap semiconductor, which mainly include three crystal structures. Anatase and rutile are tetragonal. Brookite is orthorhombic.

TiO_2是一种重要的宽禁带半导体材料，主要有3种晶型，即金红石、锐钛矿和板钛矿结构，其中金红石和锐钛矿属四方晶系，板钛矿属正交晶系。

When the molar fraction of SnO2 is 83%, the main component of the coating isO2 solid solution with rutile structure. When the molar fraction of SnO2 is 44%, the main components of coating are theO2 solid solution with rutile structure andO2 solid solution with fluorite structure. When the molar fraction of SnO2 is 17%, the main component of the coating isO2 solid solution with fluorite structure. Annealed at higher temperature than 450 ℃, CeO2 is found in the coating containing 83%Sn, and there is not SnO2 in the coating containing 83%Ce, which suggests that fluoriteO2 has higher thermal stability than rutileO2. When the molar fraction of SnO2 increases, the dispensability of the coatings is improved greatly.

结果表明：通过控制制备条件可获得具有纳米结构的钛阳极涂层；当Sn的摩尔分数为83%时，涂层主要为金红石相的O2固溶体；当Sn的摩尔分数为44%时，涂层中金红石相O2固溶体和萤石结构的O2固溶体共存；当Sn的摩尔分数为17%时，涂层由萤石结构的O2固溶体组成；高于450 ℃退火时，含83%Sn的涂层中出现CeO2相，而在含83%Ce的涂层中没有出现SnO2相，表明在相同的溶质浓度下，萤石结构的O2固溶体比锡基金红石相O2固溶体具有更好的热稳定性；而涂层中的SnO2具有明显改善涂层分散性的作用。

In this investigation, combined studies of petrography, mineralogy and geochronology were conducted on this deposit.

因此，对该区金红石矿的区域地质、矿物特征、年代学及应用前景进行研究，对于了解该金红石矿的形成历史、演化等有重要的理论意义，对于指导该矿的开发与利用具有重要的现实意义。

The aim of this thesis is to prepare rutile TiO2 nanorods under the hydrothermal condition and to investigate the correlation between the preparation parameters and the photocatalytic activity of as-prepared TiO2 samples. The initial sols for TiO2 were prepared by the hydrolysis and condensation of Ti precursor, titanium n-butoxide 〔Ti4, TNB〕 in DI-water with hydrogen chloride as a peptizer.

中文摘要本研究的主要目的是制备以水热法制备金红石相二氧化钛奈米棒并探讨其制备条件与光催化活性的相关性，以四丁基氧化钛为前驱物，在盐酸的催化下，经由水热处理来合成金红石相的二氧化钛奈米粒，并藉由XRD鉴定其结晶相，TEM来观察其外观形貌及其颗粒大小，氮气吸附法来分析其比表面积。

The mixture phase of anatase and rutile showed the highest photoactivity, and the photoactivity for rutile was most low, due to that more hydroxyl radicals were detected in the suspension of mixture phase of anatase and rutile.

混晶样品具有最高的光催化活性，金红石光催化活性最差，这主要是因为混晶样品在可见激发下所产生的羟基自由基最多，而金红石样品能够生成的羟基自由基最少。

In other words,under the same reaction conditions,the larger the particle size of theprecursor mixed powder,the higher the temperature at which Zn_2TiO_4 starts to appear.There are structure similarity phenomena in ZnO-TiO_2 system,i.e.,the connectionmanner of TiO6 octahedra in the structure of ZnTiO_3 is similar with the one of rutile,andthe connection manner of TiO6 octahedra in the structure of Zn_2TiO_4 and Zn_2Ti_3O_8 issimilar with the one of anatase.

ZnO-TiO_2系统中存在一种类构现象，即：ZnTiO_3结构中的氧八面体的连接方式和金红石TiO_2的相似，而Zn_2TiO_4和Zn_2Ti_3O_8结构中的氧八面体的连接方式则和锐钛矿TiO_2的相似，并由此衍生出一个类构效应理论，即：ZnO和金红石TiO_2的反应产物中不应该出现Zn_2TiO_4和Zn_2Ti_3O_8当然，反应温度应低于ZnTiO_3的起始分解温度。

The variety of quartz include crystal, iris or color quartz, titanic spot or crispite quartz, amethys, citrine, smoky quartz, furong stone, dongling stone, dumortrierite quartz, milky quartz, siderite or sapphire quartz, tiger's eye, hawk's eye, quartz cat's eye, starlight quartz.

石英的种类包括（水晶、晕彩或彩红石英、金红石斑点或网金红石石英、紫晶、黄晶、烟石英或烟晶、芙蓉石、东陵石、蓝线石石英、乳石英、蓝石英或蓝宝石石英、虎眼石、鹰眼或猎鹰眼、石英猫眼、带星的或星光石英）。

On the other hand, the enrichments of Pb and Sr at the rim of the interstitial rutiles suggest influence of subsequent fluids on the compositions of rutiles, which could have affected Zr of the rutiles as well This study provides the evidence for the Zr diffusion at a high temperature and fluid activity that could have contributed to the lower temperatures (598-827℃) recorded by Zr-in-rutile for the eclogites from the Dabie-Sulu UHP terrane.

这些研究结果为金红石中Zr在高温下的扩散作用和后期流体活动的影响提供了重要证据，这可能是利用金红石Zr含量地质温度计计算的苏鲁一大别榴辉岩变质温度(598~827℃)偏低的主要原因。

This photocatalyst was used to treat wastewater containing azo dye. It shows that natural rutile photocatalyst has certain photocatalytic action on azo dye.

用制备的天然金红石光催化材料处理含偶氮染料废水，结果表明其对偶氮染料的作用既有吸附，也有降解，表明天然金红石光催化材料有一定的光催化活性。

I didn't watch TV last night, because it .

昨晚我没有看电视，因为电视机坏了。

Since this year, in a lot of villages of Beijing, TV of elevator liquid crystal was removed.

今年以来，在北京的很多小区里，电梯液晶电视被撤了下来。