“Lithopone Market by Application: Global Opportunity Analysis and Industry Forecast, 2020-2027”

Titanium dioxide can amplify and brighten white opacity because of its exceptional light-scattering properties. In food and drugs, these properties help to define colors clearly and can prevent products from UV degradation. 

2: Clarification mechanism of coagulant

Chemical coagulation is a process in which chemical agents (coagulants) are added to water treatment to make colloidal dispersion system destabilize and agglomerate. In the coagulation process, small suspended particles and colloidal impurities are aggregated into larger solid particles to separate particulate impurities from water, which is called coagulation clarification.

After adding coagulant into water, colloidal particles and other small particles can be polymerized into larger flocs through the comprehensive action of mixing, coagulation and flocculation. The whole process of coagulation and flocculation is called coagulation.

(1) Destabilization and condensation of colloids

Adding electrolyte to water can compress the electric double layer and destabilize the colloid. The main mechanism is that the electric double layer of colloidal particles in water is compressed or neutralized by adding aluminum salt or iron salt coagulant. The coagulant and raw water are mixed rapidly and evenly, and a series of chemical reactions are produced to destabilize. This process takes a short time, generally about 1 min. Some cationic polymers can also play a role in the destabilization and condensation of colloids in water. These polymers have a long chain structure and positive charge in water. Their destabilization and condensation of colloids in water is due to the interaction of van der Waals force adsorption and electrostatic attraction.

(2) Flocculation and formation of floc (alum)

The particle size of the initial flocculate formed by colloid destabilization and coagulation in water is generally more than 1 m. at this time, Brownian motion can no longer push them to collide and form larger particles. In order to make the initial flocs collide with each other to form large flocs, it is necessary to input additional energy into the water to produce a velocity gradient. Sometimes it is necessary to add organic polymer flocculant into water, and the adsorption bridging effect of long chain molecules of flocculant is used to improve the probability of collision and adhesion. Flocculation efficiency usually increases with the increase of flocculate concentration and flocculation time.

Compared with polyaluminum chloride, polyaluminum chloride has the advantages of high density, fast settling speed and wide pH adaptability; the coagulation effect is less affected by temperature than that of polyaluminum sulfate; however, when adding ferric salt, it should be noted that when the equipment is not in normal operation, the iron ions will make the effluent color, and may pollute the subsequent desalination equipment.

One of the key advantages of using titanium dioxide in rubber is its ability to enhance the whiteness and brightness of rubber products. This is especially important in applications where aesthetic appeal is a priority, such as in the manufacturing of white or light-colored rubber goods. The high opacity of titanium dioxide allows for better hiding power, ensuring a uniform and attractive finish on rubber surfaces.

Likewise, the plastics industry relies heavily on titanium dioxide to enhance the appearance and durability of plastic products. With the increasing popularity of plastic packaging and consumer goods, the demand for titanium dioxide in this industry is expected to witness steady growth in the coming years. The versatility of titanium dioxide makes it a valuable additive to improve the brightness, opacity and color stability of plastic materials, ensuring improved product performance and consumer satisfaction.

While the FDA maintains that the regulated use of titanium dioxide is safe, the European Food Safety Authority and some other experts warn of potential, serious health risks.

Titanium dioxide (TiO2) is a versatile and widely used inorganic compound that has numerous applications, ranging from pigments in paints and coatings to cosmetics and pharmaceuticals. As a result, the demand for TiO2 powder suppliers has been steadily increasing.

Reasons for listing: Henan Billions Chemical Co., Ltd., a well-known brand of TiO2 factory, a famous trademark in Henan Province, a listed company, a drafting unit of national and industry standards, a high-tech enterprise, advocating the implementation of clean production, focusing on titanium and zirconium fine powder A large-scale inorganic fine chemical enterprise engaged in material R&D and manufacturing.

Lithopone 30% CAS No. 1345-05-7 / Nature and stability