china lithopone b311 b301

Chemours, a company dedicated to chemistry, manufactures titanium dioxide through its Titanium Technologies business. They provide custom solutions for customers seeking high-performance pigments for their products They provide custom solutions for customers seeking high-performance pigments for their products They provide custom solutions for customers seeking high-performance pigments for their products They provide custom solutions for customers seeking high-performance pigments for their productsr-5569 titanium dioxide manufacturers.

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china lithopone b311 b3012025-08-16 05:39
1992
{随机栏目} 2025-08-16 07:22 1198

  • 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.

    {随机栏目} 2025-08-16 07:10 359

  • TiO2 is also known for its high refractive index, which means that it has the ability to bend and reflect light effectively. This property makes TiO2 an ideal pigment for enhancing the color and print quality of paper products. By using TiO2 in the paper manufacturing process, paper suppliers can achieve vibrant colors and sharp images that stand out on the page. This is particularly important for printed materials such as magazines, brochures, and packaging, where visual appeal is a key factor in attracting consumers.

    {随机栏目} 2025-08-16 05:50 1311

  • Titanium dioxide is produced in two main forms. The primary form, comprising over 98 percent of total production, is pigment grade titanium dioxide. The pigmentary form makes use of titanium dioxide’s excellent light-scattering properties in applications that require white opacity and brightness. The other form in which titanium dioxide is produced is as an ultrafine (nanomaterial) product. This form is selected when different properties, such as transparency and maximum ultraviolet light absorption, are required, such as in cosmetic sunscreens.

    {随机栏目} 2025-08-16 05:25 701

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