保定钛白粉厂

Titanium dioxide is the main component of TiO2, chemical properties of stability, in general, and most of the material does not react. In nature, titanium dioxide has three kinds of crystallization: plate titanium, anatase titanium dioxide and rutile titanium dioxide. Titanium plate type crystal is not stable, no industrial utilization value, anatase titanium dioxide (Anatase) referred to as A, and rutile titanium dioxide (Rutile) referred to as R, have the stability of the lattice, is an important white pigment and glaze porcelain, compared with other white paint has excellent whiteness. Tinting, covering power, weatherability, heat resistance, and chemical stability, especially there is no toxicity.

钛白粉兼有锌白的持久性和铅白的遮盖性,是高档白色颜料，最大的优点是无毒，在高级化妆品中作为增白剂。其覆盖能力强，折射率高，也用来做高级白色油漆。也可用作高级铜版纸的表面覆盖剂，以及用来生产增白尼龙。陶瓷中加入可以提高陶瓷的耐酸性。钛白还具有半导体性能，以其无毒、价廉、催化活性高的特点，成为多项光催化反应中最常用的半导体材料。还可用作乙醇脱水,脱氢的催化剂。

Covering both the durable titanium dioxide and zinc white, high-grade white pigment, the biggest advantage is non-toxic, as whitening agent in senior cosmetics. It has high covering power and high refractive index. It is also used for advanced white paint. It can also be used as surface covering agent for high grade coated paper, and used for producing whitening nylon. The addition of ceramic can improve the acid resistance of ceramics. Titanium dioxide is also a semiconductor material with many advantages, such as non-toxic, cheap and high catalytic activity. It has become the most commonly used semiconductor material in many photocatalytic reactions. It can also be used as catalyst for dehydration and dehydrogenation of ethanol.

目前世界二氧化钛消费量中金红石型占75～80%，锐钛型只占20～25%。既然同属于钛白粉系列这两种钛白粉有什么区别？

At present, the consumption of rutile in the world accounts for 75 - 80% of the rutile, and only 20 - 25% for the anatase. Since it belongs to the titanium dioxide series, what's the difference between these two kinds of titanium dioxide?

1）内部结构晶体

1) internal structure crystal

钛白粉共有三种不同的晶体结构，即我们常说的金红石型钛白粉、锐钛型钛白粉、板钛型钛白粉，三者晶体结构各不不同，其中金红石型钛白粉晶体结构最为稳定；而板钛型钛白粉则用途非常少，这主要是由于它内部结构晶体的不稳定，因此在自然界就没办法可以长期稳定的保存起来，没有生产使用价值；

Titanium dioxide has three different crystal structures, we often say that the rutile titanium dioxide, titanium dioxide anatase type titanium plate, titanium dioxide, three crystal structure of the different, the rutile titanium dioxide crystal structure is the most stable; and titanium plate type titanium dioxide is the use of a very few, this it is mainly due to the internal structure of the crystal is not stable, so there is no way in nature can be long-term preserved, no production value;

由于金红石型产品晶型更趋向六面体，比较锐钛更容易分散均匀，其所形成的团聚物更加均匀。粒径分布更为窄。

Because rutile products tend to be more crystalline, they are more easily dispersed and more uniform. The particle size distribution is narrower.

2）熔点和沸点

2) melting point and boiling point

由于锐钛型在高温下会转变成金红石型，因此锐钛型二氧化钛的熔点和沸点实际上是不存在的。只有金红石型二氧化钛有熔点和沸点，金红石型二氧化钛的熔点为1850℃、空气中的熔点为(1830±15)℃、富氧中的熔点为1879℃，熔点与二氧化钛的纯度有关。金红石型二氧化钛的沸点为为(3200±300)℃，在此高温下二氧化钛稍有挥发性；

Due to the sharp titanium type will be transformed into rutile at high temperature, so the melting and boiling of anatase titanium dioxide is not in existence. Only a melting point and boiling point rutile titanium dioxide, rutile TiO2 with a melting point of 1850 DEG C, the air in the melting point (1830 + 15) C and oxygen in a melting point of 1879 DEG C, the melting point and the purity of the titanium dioxide. The boiling point of rutile titanium dioxide is (3200 + 300) DEG C, and at this high temperature titanium dioxide is slightly volatile;

3）介电常数

3) dielectric constant

由于二氧化钛的介电常数较高，因此具有优良的电学性能。在测定二氧化钛的某些物理性质时，要考虑二氧化钛晶体的结晶方向。锐钛型二氧化钛的介电常数比较低，只有48。

Because of its high dielectric constant, TiO2 has excellent electrical properties. In the determination of some physical properties of titania, the direction of crystallization of TiO2 crystals should be taken into account. Anatase titanium dioxide has a relatively low dielectric constant, only 48.

4）电导率

4) conductivity

二氧化钛具有半导体的性能，它的电导率随温度的上升而迅速增加，而且对缺氧也非常敏感。金红石型二氧化钛的介电常数和半导体性质对电子工业非常重要，可利用该性质生产陶瓷电容器等电子元器件。

Titanium dioxide has semiconducting properties, and its conductivity increases rapidly with temperature, and is very sensitive to hypoxia. The dielectric constant and semiconducting properties of rutile titanium dioxide are very important to the electronic industry, which can be used to produce ceramic capacitors and other electronic components.

5）硬度

5) hardness

按莫氏硬度十分制标度，金红石型二氧化钛为6～6.5，锐钛型二氧化钛为5.5～6.0，因此在化纤消光中为避免磨损喷丝孔而采用锐钛型。

According to the scale of Mohs hardness, rutile titanium dioxide is 6 to 6.5, and anatase titanium dioxide is 5.5 ~ 6. Therefore, in the chemical fiber extinction, the anatase pattern is adopted to avoid wearing the spinneret hole.

6）生产方法

6) production methods

虽然金红石与锐钛硫酸法生产的工艺基本类似，但是具体参数存在很大的差别。锐钛产品大多用硫酸法进行生产，但是金红石产品现在有硫酸法与氯化法两种。

Although rutile and titanium sulfate process are basically similar, there are great differences in specific parameters. Most of the products are used in the production of anatase rutile sulfuric acid method, but the products now have two kinds of sulfuric acid method and chlorination.

7）包膜

7) envelope

锐钛产品基本在煅烧结算，经过雷蒙磨破碎之后进行包装销售，而金红石产品为了更好的提高其分散，耐候等特性，在煅烧后使用氧化铝或者锆进行表面处理，帮随同时的还有进行部分的有机处理。

The anatase products in the calcination settlement, after crushing Raymond Mill packaging sales, while the rutile products in order to improve its dispersion, weather resistance, surface treatment using alumina or zirconia after calcination, with the help and the organic part of.

8）价格

8) price

通过生产方式不难看出，金红石型的钛白粉成本比锐钛型的高，售价自然也高，目前来看，金红石型钛白粉售价大约比锐钛型钛白粉高3000-4000元每吨。

By way of production, it is easy to see, rutile titanium dioxide cost is higher than the sharp titanium type, the price is also high, for now, rutile titanium dioxide price about 3000-4000 yuan per ton than anatase titanium dioxide.

另外，A型二氧化钛白度较好，但着色力仅为R型的70，在耐候性方面加入A型二氧化钛试片仅仅经过一年以后即开始龟裂或者碎片状剥落，而加入R型二氧化钛试片，经过十年以后其外观只有很小变化。由于R型二氧化钛着色力及耐候性较佳，塑料着色使用R型二氧化钛为好。

In addition, A type titanium dioxide whiteness is good, but the color force is only R type 70, A type titanium dioxide in joining the weather resistance test pieces after only a year later began cracking or fragmented spalling, while adding R type titanium dioxide specimens after ten years after the appearance of only a small change. Because R type titanium dioxide has better dyeing power and weather resistance, it is better to use R type titanium dioxide for plastic dyeing.

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按照钛白粉的制造工艺目前有硫酸法和氯化法，两种方法都可生产A型和R型钛白粉。硫酸法于1931开始，氯化法由美国杜邦公司于1975年才开始生产A型，氯化法中氧化步骤控制粒子大小分布和晶体结构，使其可以生产具有高遮盖力和底色兰，高着色强度的钛白粉。

According to the manufacturing process of titanium dioxide are sulfuric acid and chloride, two kinds of methods can produce A type and R type titanium dioxide. Sulfuric acid method in 1931 started, chlorination by DuPont Co began in 1975 the production of A type oxidation step control, particle size distribution and crystal structure in the chlorination, which can produce high hiding power and bottom color, high tinting strength of titanium dioxide.

近期，钛白粉产业如火如荼，行业升温，希望我国的钛白粉生产在未来能够突破技术壁垒，生产出高品质的钛白粉。同时目前行业乱象普遍，希望生产厂家减少牌号、明确标识技术参数、使用标准中文包装，防止假冒伪劣掺混产品横行市场！

Recently, the titanium dioxide industry is in full swing and the industry is heating up. We hope that China's titanium dioxide production will be able to break through technical barriers and produce high-quality titanium dioxide in the future. At the same time, the current industry chaos generally, I hope manufacturers to reduce grades, clear identification of technical parameters, the use of standard Chinese packaging, to prevent counterfeit and shoddy products mixed market!