金红石的

According to mineral components, ores of the Daixian rutile deposit can be classified into the following types: actinolite- bearing anthothyllitite, actinolite-garnet- bearing anthothyllitite, staurolite- actinolite- bearing anthothyllitite, actinolite-biotite-bearing anthothyllitite, kyanite-bearing anthothyllitite, talc-actinolite- bearing anthothyllitite and chlorite-actinolite-bearing anthothyllitite, etc.

山西代县金红石矿床的含矿岩石按岩石中矿物组成可以划分以下几种类型：阳起直闪岩、直闪阳起直闪岩、石榴石阳起直闪岩、十字石阳起直闪岩、阳起黑云直闪岩、阳起直闪岩、蓝晶石直闪岩、滑石阳起直闪岩、绿泥阳起直闪岩等。按金红石的颜色可以划分为两类，即红色金红石矿石、黑色金红石矿石。

The rutile-hosted rocks are metamorphic rocks with amphibolite facie, but more work should be done to discuss features of their protolith.

这一化学特征显示了与岩相学观察相一致的结果，即富含金红石的岩石为透闪石含量偏低的直闪岩类。

The nanophase anatase of different size (the average is 40 nm) was synthesized with chemical precipitation method.

采用化学沉淀法制备出 40nm的锐钛矿，并用拉曼光谱对纳米和块体锐钛矿到金红石的相转变过程进行了研究。

Using the aforementioned experimental methods,the author has performedcareful study on the thermoanalytical characteristic of nanocrystalline brookite-basedTiO2,and found that on the DTA curve there exists a small irreversible endothermicpeak,which is related to the dramatic structural phasetransformation from brookite to anatase then to rutile.

利用上述实验手段，作者首次对板钛矿基(brookite-based)纳米TiO2的热分析特性进行了较系统、深入的研究，发现在DTA曲线上存在一较小的不可逆、无失重吸热峰，对应于从板钛矿经锐钛矿到金红石的急剧转变。

The element titanium mainly exists in the form of ilmenite and titanic magnetite in mineral and seldom exists in the form of rutile.

该矿石钛元素以钛铁矿、钛磁铁矿形式存在于矿石中，很少以金红石的形式赋存。

The phase structure of coating is mainly composed of rutile type TiO2 in alkalescent electrolytic solution. As aqueous pH increases, the proportion of rutile type TiO2 continually increase.

在碱性溶液中，生成的氧化膜相结构主要为金红石型TiO_2，而且随着pH值的增加，金红石的含量逐渐增加。

The results showed that (1) The grain size of nanometer YiO_2 was40～80nm.The wavelength corresponding to the maximum absorbency values were observedin the 200～320nm range.The crystal structure of carbon doped TiO_2 photocatalyst is primarilyanatase(22.43% rutile), and the content of carbon is about 4.6%.(2) The relative humidityvaring from 8% to 80%, the photocatalytic degradation degree of benzene increased withincreasing relative humidity; and to toluene, degradation rate was hanced by relative humidityup to 60%, and more or less inhibited above 60%.(3) Scheme and results of orthogonal testswere used by evaluating the photocatalytic performance of the gas phase methanol, acetoneand 1-heptane.The results revealed that their degradation degree reached 84.5%, 93.39% and93.45%, respectively.(4) The 254nm UV lamp showed higher photocatalytic degradation rate.For methanol, acetone and 1-heptane, it was found that photocatalytic degradation reactionoccurs with the light strength of daylight lamp.(5) Under the the same conditions, 15%degradation degree has been obtained for benzene, whilst about 10% degradation degree wasattained by Degussa P25; During the initial phases, the toluene revealed higher photocatalyticactivity, comparing with Degussa P25, the degradation degree of methanol, acetone and1-heptane were slightly lower.

结果表明：(1)CVD法制备的纳米TiO_2光催化剂，颗粒球形度好、粒径在40～80nm之间；最大吸光度值所对应的波长为200～320nm；含碳量约为4.6％；晶型组成主要为锐钛矿型，金红石的含量约为22.43％；(2)在相对湿度为8％～80％范围内，苯的光催化降解率随着相对湿度的增大而增大；甲苯在相对湿度为60％时达到最好降解效果，当相对湿度增大到80％时光催化效果降低；(3)将正交实验设计及实验方案应用于气相甲醇、丙酮和正庚烷光催化降解研究，实验结果表明：三者最高降解率分别为84.5％、93.39％和93.45％；(4)有254nm紫外灯参与的光催化实验可以大大提高有机气体的光催化降解率；在日光灯的照射下，掺碳纳米TiO_2对气相甲醇、丙酮和正庚烷具有一定的光催化氧化能力；(5)较P25粉，在相同的光催化操作条件下：气相苯的平均降解率达15％，高于P25粉10％的降解率；气相甲苯在初始阶段具有较高的反应速率；气相甲醇、丙酮和正庚烷的降解率略低于P25粉。

The conception of titanium concentrates ,titaniferous slag,high titaniferous slag,synthetic rutile and natural rutile are introduced in this paper.

介绍了富钛料、钛渣、高钛渣、人造金红石、金红石的基本概念和富钛料的主要用途。

The principle and producing situation of three production methods of titanium concentrates—— Reduction smelting produces titaniferous slag,Acid leaching and Reductive leaching produce synthetic rutile are depicted;According to different production methods of titanium concentrates,the differences are summarize.

简述了工业上制备富钛料常用的几种方法--电炉熔炼法生产钛渣、盐酸浸出法、硫酸浸出法、还原锈蚀法生产人造金红石的原理、国内外生产状况。

Characteristics of zircons revealed by cathodeluminescence images from rutile ores with different colors are incredible similar.

从红色和黑色金红石矿中的锆石阴极发光图像来分析，尽管上述三个样品的矿物组合、金红石的颜色、产状及形成P—T条件有所不同，但其中锆石的特征及年龄结果却有惊人的相似，甚至完全相同。

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。