JiYuan Ruiyang Industrial Co., Ltd

Introduction to Chlorination Process of Sponge Titanium

2023-07-11

　　Titanium tetrachloride is mainly used for the production of sponge titanium, titanium dioxide, and titanium trichloride. There are many methods for its production, mainly including boiling chlorination, molten salt chlorination, and vertical furnace chlorination. Boiling chlorination is currently the main method for producing titanium tetrachloride (used in China, Japan, and the United States), followed by molten salt chlorination (used in CIS countries), while vertical furnace chlorination has been phased out. Boiling chlorination generally uses high-grade titanium rich materials with low calcium and magnesium content as raw materials, while molten salt chlorination can use raw materials with high calcium and magnesium content.　　1. Boiling chlorination　　Boiling chlorination is a method of producing titanium tetrachloride by reacting fine grained titanium rich materials with solid carbonaceous (petroleum coke) reducing agents in a fluidized state under the action of high temperature and chlorine gas flow. This method has the characteristics of accelerating mass and heat transfer between gas and solid phases, and enhancing production. The raw materials used for boiling chlorination both domestically and internationally include high titanium slag, natural rutile, and artificial rutile. The diameters of the newly built boiling chlorination furnaces at Fushun Titanium Plant and Zunyi Titanium Plant in China are Φ 1.4 m and Φ 2.4 meters, using * * * sieve plate chlorination technology, with Zunyi Titanium Factory designed to produce 70 tons of crude titanium tetrachloride per day.　　2. Molten salt chlorination　　Molten salt chlorination is a method of preparing titanium tetrachloride by suspending finely ground titanium slag, rutile, and petroleum coke in a molten salt (mainly composed of KCl, NaCl, MgCl2, and CaCl2) medium and introducing chlorine gas. Generally, waste electrolytes from electrolytic magnesium can also be used, and chlorine gas can be injected under the conditions of 973K~1073K. Therefore, the speed of chlorination reaction is influenced by factors such as the properties and composition of the melt, the type of reducing agent, the properties of the raw materials, chlorination temperature, chlorine gas concentration and injection rate, melt height, and carbon dosage. Molten salt composition in the production of titanium tetrachloride in the Commonwealth of Independent States.

Introduction to Identification Methods for Titanium Dioxide

2023-07-11

　　Physical methods:　　The simple method is to compare the texture, with fake titanium dioxide being smoother and real titanium dioxide being more astringent.　　Water flushing, getting some titanium dioxide on your hands, fake ones are easy to flush off, but really not easy to flush off.　　Take a glass of clean water and throw titanium dioxide into it. If it floats up, it is true, and if it settles down, it is false (if it is an activated modified product, it will not work).　　Chemical methods:　　Mixing light calcium or heavy calcium: Adding dilute sulfuric acid or hydrochloric acid can cause clear lime water to become turbid due to the reaction of calcium carbonate with acid to produce carbon dioxide.　　Mixed with Lide powder: Add dilute sulfuric acid or hydrochloric acid, it has a foul egg odor.　　Made into latex paint, with iron red added, the color is dark, indicating poor covering power as fake or poor quality titanium dioxide.　　There are also two better methods:　　Using the same PP+30% GF+5% PP-G-MAH+0.5% titanium dioxide, the lower the strength, the more genuine the titanium dioxide (rutile).　　Choose a transparent resin, such as transparent ABS+0.5% titanium dioxide, and measure the transmittance. The lower the transmittance, the more genuine the titanium dioxide.

Introduction to the physical properties of titanium dioxide

2023-07-11

　　1. Relative density　　Among commonly used white pigments, titanium dioxide has a relatively low density, while among white pigments of the same quality, titanium dioxide has a large surface area and a high pigment volume.　　2. Melting and boiling points　　Due to the transformation of rutile type titanium dioxide into rutile type at high temperatures, the melting and boiling points of rutile type titanium dioxide actually do not exist. Only rutile type titanium dioxide has a melting point and boiling point. The melting point of rutile type titanium dioxide is 1850 ℃, the melting point in air is (1830 ± 15) ℃, and the melting point in oxygen rich is 1879 ℃. The melting point is related to the purity of titanium dioxide. The boiling point of rutile type titanium dioxide is (3200 ± 300) ℃, and at this high temperature, titanium dioxide is slightly volatile.　　3. Dielectric constant　　Due to its high dielectric constant, titanium dioxide has excellent electrical properties. When determining certain physical properties of titanium dioxide, the crystallization direction of titanium dioxide crystals should be considered. The dielectric constant of rutile titanium dioxide is relatively low, only 48.　　4. Conductivity　　Titanium dioxide has semiconductor properties, and its conductivity rapidly increases with temperature, and it is also very sensitive to hypoxia. The dielectric constant and semiconductor properties of rutile type titanium dioxide are very important for the electronic industry, and can be used to produce electronic components such as ceramic capacitors.　　5. Hardness　　According to the Mohs hardness scale, the rutile type titanium dioxide is 6-6.5 and the anatase type titanium dioxide is 5.5-6.0. Therefore, in chemical fiber extinction, the anatase type is used to avoid wear on the spray hole.　　6. Hygroscopicity　　Although titanium dioxide has hydrophilicity, its hygroscopicity is not very strong, and the rutile type is smaller than the rutile type. The hygroscopicity of titanium dioxide is related to its surface area, which is large and has high hygroscopicity. It is also related to surface treatment and properties.　　7. Thermal stability　　Titanium dioxide is a substance with good thermal stability.　　8. Particle size　　The particle size distribution of titanium dioxide is a comprehensive indicator that seriously affects the performance of titanium dioxide pigments and product applications. Therefore, discussions on covering power and dispersibility can be directly analyzed from the perspective of particle size distribution.　　The factors that affect the particle size distribution of titanium dioxide powder are relatively complex. Firstly, the size of the hydrolysis original particle size is controlled and adjusted by the hydrolysis process conditions to keep the original particle size within a certain range. Next is the calcination temperature. During the calcination process of metatitanic acid, particles undergo a phase transition and growth period. Control the appropriate temperature to keep the growing particles within a certain range. It is the crushing of products, which usually involves the modification of Raymond mill and the adjustment of analyzer speed to control the crushing quality. At the same time, other crushing equipment can be used, such as universal mill, airflow crusher, and hammer grinding device.

Introduction to the application fields of titanium dioxide

2023-07-11

　　The main application areas of titanium dioxide are coatings, plastics, inks, and papermaking, with coatings accounting for 60%, plastics accounting for 20%, papermaking accounting for 14%, and other fields (including cosmetics, chemical fibers, electronics, ceramics, enamel, welding rods, alloys, glass, etc.) accounting for 6%.　　Titanium dioxide is not only used as a coloring agent in the rubber industry, but also has reinforcing, anti-aging, and filling effects. Adding titanium dioxide to white and colored rubber products, it is resistant to sunlight, does not crack or change color, has high elongation, and is resistant to acid and alkali. Titanium dioxide for rubber is mainly used in automotive tires, rubber shoes, rubber flooring, gloves, sports equipment, etc. It is generally made of sharp titanium. However, for the production of automotive tires, a certain amount of rutile type products are often added to enhance their resistance to ozone and ultraviolet radiation.　　The application of titanium dioxide in cosmetics is becoming increasingly widespread. Due to the non-toxic nature of titanium dioxide, which is far superior to lead white, almost all types of fragrance powders use titanium dioxide instead of lead white and zinc white. Adding 5% -8% titanium dioxide to the fragrance powder can result in a white color, making the fragrance smoother, with adhesion, absorption, and covering power. Titanium dioxide in water powder and cold frost can reduce the feeling of greasiness and transparency. Titanium dioxide can also be used in various other spices, sunscreen, soap tablets, white soap, and toothpaste.　　1、 Cosmetic grade titanium dioxide is divided into oil-based and water-based titanium dioxide. Due to its stable chemical properties, high refractive index, high opacity, high coverage, good whiteness, and no toxicity, it is widely used in the cosmetics field, playing a role in beauty and whitening.　　【1】 Performance characteristics:　　High whiteness and strong covering power.　　Hydrophilic and oleophilic products overcome the shortcomings of general titanium dioxide that are difficult to disperse and precipitate in their respective dispersion systems, improving their dispersibility and anti precipitation properties, making your product more stable and satisfactory.　　Strong weather resistance.　　Good compatibility with other cosmetic ingredients.　　【2】 Purpose　　Titanium dioxide is considered a high-performance white pigment in the world, widely used in industries such as coatings, plastics, papermaking, printing inks, chemical fibers, rubber, cosmetics, etc.　　Titanium dioxide has stable chemical properties and generally does not react with most substances. There are three types of crystals of titanium dioxide in nature: plate titanium type, rutile type, and rutile type. Plate titanium type is an unstable crystal form with no industrial value. Anatase type, abbreviated as A type, and rutile type, abbreviated as R type, both have stable lattice and are important white pigments and porcelain glazes. Compared with other white pigments, they have superior whiteness, coloring power, covering power, weather resistance, heat resistance, and chemical stability, especially without toxicity.　　Titanium dioxide is widely used in industries such as coatings, plastics, rubber, inks, paper, chemical fibers, ceramics, daily chemicals, pharmaceuticals, and food.　　The coating industry is a major user of titanium dioxide, especially rutile type titanium dioxide, which is mostly consumed by the coating industry. Coatings made of titanium dioxide have bright colors, high coverage, strong coloring power, low dosage, and a wide variety. They can protect the stability of the medium, enhance the mechanical strength and adhesion of the paint film, prevent cracks, prevent UV rays and water from penetrating, and extend the lifespan of the paint film.　　The plastic industry is a major user. Adding titanium dioxide to plastics can improve the heat resistance, light resistance, and weather resistance of plastic products, improve their physical and chemical properties, enhance their mechanical strength, and extend their service life.　　The papermaking industry is the third largest user of titanium dioxide, which is mainly used as a paper filler in paper and thin paper. Adding titanium dioxide to paper can give it good whiteness, luster, high strength, thin and smooth, non penetrating during printing, and lightweight. Titanium dioxide for papermaking generally uses untreated rutile titanium dioxide, which can act as a fluorescent whitening agent and increase the whiteness of the paper. But laminated paper requires the use of surface treated rutile titanium dioxide to meet the requirements of light resistance and heat resistance.　　Titanium dioxide is still an indispensable white pigment in ink. Ink containing titanium dioxide is durable and does not change color, with good surface wettability and easy dispersion. The titanium dioxide used in the ink industry includes both rutile and rutile types.　　The textile and chemical fiber industries are another important application area of titanium dioxide. Titanium dioxide used in chemical fibers is mainly used as a matting agent. Due to the softness of the rutile type compared to the gold red type, the rutile type is generally used. Titanium dioxide used in chemical fibers generally does not require surface treatment, but some special varieties require surface treatment to reduce the photochemical effect of titanium dioxide and avoid fiber degradation under the photocatalytic effect of titanium dioxide.　　The enamel industry is an important application field of titanium dioxide. Enamel grade titanium dioxide has the advantages of high purity, good whiteness, fresh color, uniform particle size, strong refractive index, and high fading power. It also has strong opacities and opacity, making the coating thin, smooth, and acid resistant after coating. In the enamel manufacturing process, it can be mixed evenly with other materials, not clumped, and easy to melt.　　The ceramic industry is also an important application field of titanium dioxide. Ceramic grade titanium dioxide has the characteristics of high purity, uniform particle size, high refractive index, excellent high temperature resistance, and the ability to maintain no ash for 1 hour under high temperature conditions of 1200 ℃. High opacity, thin coating, lightweight, widely used in materials such as ceramics, architecture, and decoration.

Introduction to the Application of Pearlescent Powder

2023-07-11

　　1. Textiles　　Combining pearl pigments with textiles can give fabrics excellent pearl luster and color. Adding pearl pigment to the printing paste and printing it on textiles after post-processing can produce a strong pearl like luster from various angles and levels under sunlight or other light sources.　　2. Coatings　　Coatings are widely used, whether it is automotive topcoat, automotive components, building materials, household appliances, etc., which will be colored with coatings to achieve a certain degree of protection.　　3. Ink　　The use of pearl ink in packaging printing is becoming increasingly widespread, such as in cigarette packs, wine labels, anti-counterfeiting printing, and other fields.　　4. Ceramics　　Applying pearl pigments to ceramics can endow them with unique optical properties.　　5. Plastic　　Mica titanium pearl pigment is almost suitable for all thermoplastic and thermosetting plastics, and will not cause fading or ashing of plastic products. It can produce a bright metallic luster and pearl effect.　　6. Cosmetics　　The variety, performance, and color diversity of cosmetics depend on the diversity of pigments they use. Pearlescent pigments are widely used as pigments in cosmetics due to their strong covering power or high transparency, good color scheme, and wide chromatography.　　7. Other　　Pearlescent pigments are also widely used in other production and daily life. Such as imitating the appearance of ancient bronze and applying it in artificial stone.