钛白

The research of this dissertation can not only be applied in preparation of titanium dioxide used in synthetics fiber, but also have important significance to improve general product quality of anatase and to exploder the other variety of titanium white such as titanium white slurry, titanium white with catalyze, titanium white used in food and so on.

本文的研究成果不但成功地应用于化纤钛白的制备，同时对提高一般锐钛钛白的产品质量。开发其它钛白品种（钛白水浆、光催化钛白、食品钛白）等具有重要的意义。

Through lots of tests, the new technology of preparing the polymeric ferric aluminum silicate sulfate by using the waste-acid of Ti02-industriy and the coal fly ash has been designed. The highest Al-acid stripping rate can be achieved by the waste sulfate acid under boiling degree for 1. 5h when the mass ratio between NaCl and Coal Fly ash is 0. 05:1, as well as that between Coal Fly ash and Waste Acid ratio is 1:10. By means of the oxidation-polymerized reaction under 40-50*C and normal pressure, using NaNCkas catalyst and air as oxidation, the polymeric ferric aluminum sulfate can be obtained. The poly-silicic acid is polymerized with soluble glass in the optimum conditions of pH=5-6 and the concentration of Si02 is about 3%. The inorganic high molecule coagulant of PFASS is synthesized with the poly-silicic acid into the solution of polymeric ferric aluminum sulfate.

本论文通过大量的试验，研究开发出了用粉煤灰及钛白废酸制取聚合硫酸硅酸铁铝的新工艺，其最佳工艺条件为：于沸点温度，以NaCl为助溶剂(NaCl与粉煤灰质量比为0.05：1)，以钛白废酸浸取粉煤灰(固液比为1：10)中的铝1.5小时，最大浸取率可达40％；经过滤洗涤后，调节滤液pH至2.0左右，以NANO_2为催化剂(NaNO_2用量为滤液中FeSO_4·7H_2O量的3％)，空气为氧化剂，于40-50℃进行常压催化氧化反应，制取聚合硫酸铁铝，催化氧化时间为2小时；将工业水玻璃稀释至3％左右，调节其pH于5-6，室温下制备活性聚硅酸；将活性聚硅酸与聚合硫酸铁铝按照一定比例复合，经熟化，即制得新型无机高分子混凝剂PFASS。

In order to prepare titanium dioxide with excellent performance it must start with liquid synthesis of titanium white.

因此为制取性能优良的化纤钛白就必须从研究钛白的液相合成着手。

The company operates plants at DeLisle, Miss.; New Johnsonville, Tenn.; Edge Moor, Del.; Altamira, Mexico; and Kuan Yin, Taiwan; all of which use the chloride manufacturing process. The company also operates a plant in Uberaba, Brazil, for finishing titanium dioxide and a mine in Starke, Fla. Technical service centers are located in Uberaba, Brazil; Mexico City, Mexico; Mechelen, Belgium; Kuan Yin, Taiwan; Ulsan, Korea; Wilmington, Del.; and Shanghai, China, to serve the European, Middle Eastern, United States, Asian and Latin America markets.

作为美国杜邦公司的业务部门之一，杜邦钛白科技事业部在美国密西西比州的DeLisle、田纳西州的NewJohnsonville及特拉华州的EdgeMoor，墨西哥的Altamira和中国台湾的观音均设有生产工厂，全部采用氯化法钛白粉生产工艺；同时，杜邦钛白科技在巴西的Uberaba拥有一座生产钛白粉的研磨和包装工厂，以及在美国佛罗里达州的Starke拥有一座采矿工厂；杜邦钛白科技的技术服务中心分别位于巴西的Uberaba、墨西哥的墨西哥城、比利时的Mechelen、台湾观音、韩国蔚山、中国上海和美国特拉华州的威明顿，服务于拉丁美洲、欧洲、中东、亚洲和北美等全球市场。

The key was elaborated strengthen research of technology of titanium white aftertreatment, promote product of vitriolic law titanium white energetically high-grade change, accelerate research of technology of chloridize law titanium white and industrialization process, the aspect that alters high-grade titanium white to count an import gradually and accelerate metallic titanium to grow pace, conform with international person of the same trade as soon as possible wait for a viewpoint.

重点阐述了加强钛白后处理技术研究，大力促进硫酸法钛白产品高档化，并加快氯化法钛白技术研究和产业化进程，逐渐改变高档钛白依赖进口的局面以及加快金属钛发展步伐，尽快与国际同行接轨等观点。

But ferrous sulfate the by-product of TiO2 cannot be effectively used enough in our country over a long period. In order to solve above questions, the dissertation has done some works as follows:Firstly, the process of purifying by-product of TiO2-ferrous sulfate is studied. The craft and condition of the synthesis of micaceous iron oxide with by-product of TiO2-ferrous sulfate was studied through experiments.

它们都可以通过钛白副产硫酸亚铁为原料制备，但是长期以来，我国硫酸法生产钛白的副产物硫酸亚铁得不到充分有效地利用，针对以上情况，本论文主要作了以下几个方面的工作：首先，研究了钛白副产硫酸亚铁的净化工艺路线，讨论了钛白副产硫酸亚铁水热法合成云母氧化铁的工艺路线和条件，讨论了影响云母氧化铁生成的因素，得出了红、棕、灰云母氧化铁合成的控制条件。

Investigated the organic surface modification of anatase titanium dioxide pigment and its adsorption mode. It was founded that the surface hydroxyl groups are the active centers for olefinic acid. The adsorption of modifier fit Langmuir single molecule layer adsorption mode.

研究了锐钛型钛白的有机表面改性及表面吸附模型，认为表面羟基是有机烯酸表面改性的活性中心，改性剂在钛白表面的吸附符合Langmuir单分子层吸附模型。

Titanic oxide , titanium dioxide , titanium oxide

钛白； 钛白；氧化钛；二氧化钛

Dongfang Titanium is supported by self-produced high quality ilmenite resources with capacity 400,000 metric tons per annum. Dongfang Titanium is in cooperation with domestic and overseas professional production and research organizations. Sulphate process TiO2 process has been developed, suitable for Dongfang Titanium self-produced ilmenite.

东方钛业依托自产40万吨/年高品位优质钛精矿资源，与国内外专业钛白生产研究机构合作，开发出适合公司自产钛精矿特有的硫酸法金红石钛白粉生产工艺，建设完成了单条生产线4万吨/年的硫酸法金红石钛白粉生产装置。

On base of liquid synthesis, the influence of various adulterations on calcination of hydrous titanium dioxide is investigated and the connection of various calcination programs and performance of titanium white is explored.

在液相合成的基础上，实验研究了不同掺杂条件对水合二氧化钛煅烧过程的影响，探索了不同煅烧程序与钛白性能之间的关系，制备出了性能优良的钛白原料，可供进一步加工成化纤钛白。

We have no common name for a mime of Sophron or Xenarchus and a Socratic Conversation; and we should still be without one even if the imitation in the two instances were in trimeters or elegiacs or some other kind of verse--though it is the way with people to tack on 'poet' to the name of a metre, and talk of elegiac-poets and epic-poets, thinking that they call them poets not by reason of the imitative nature of their work, but indiscriminately by reason of the metre they write in.

索夫农 、森那库斯和苏格拉底式的对话采用的模仿没有一个公共的名称；三音步诗、挽歌体或其他类型的诗的模仿也没有——人们把&诗人&这一名词和格律名称结合到一起，称之为挽歌体诗人或者史诗诗人，他们被称为诗人，似乎只是因为遵守格律写作，而非他们作品的模仿本质。

The relationship between communicative competence and grammar teaching should be that of the ends and the means.

交际能力和语法的关系应该是目标与途径的关系。