lithopone pigment pricelist factory

In recent years, China's production of talc and titanium dioxide has increased significantly, making it one of the world's largest producers of these minerals. According to the US Geological Survey, China produced approximately 2.5 million metric tons of talc and 2.4 million metric tons of titanium dioxide in 2019 alone. This growth can be attributed to the country's vast reserves of these minerals, as well as government initiatives aimed at boosting domestic production and reducing reliance on imports.

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Another important property of Chinese anatase titanium dioxide is its photocatalytic activity, which enables it to break down organic pollutants and harmful chemicals when exposed to light. This makes it an attractive choice for applications in environmental remediation, such as air and water purification systems. Additionally, its photocatalytic properties have also been studied for use in self-cleaning surfaces, such as windows and building facades, where it can help to reduce maintenance costs and keep surfaces looking clean.


chinese anatase titanium dioxide

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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.

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  • However, it's important to note that cast iron has its limitations. It is less malleable and ductile than other metals, limiting its applicability in certain situations. Nonetheless, advancements in metallurgy have led to the development of different types of cast irons, such as gray, ductile, and nodular, each tailored to specific requirements.
  • Lightweight material
  • With the old roller assembly removed, detach the old rollerssliding screen roller replacement. Some may be pressed into a bracket, requiring a small pry tool to pop them out. Others may be screwed in, needing a screwdriver again. Be cautious to avoid damaging the bracket.

  • Rod iron fences have long been celebrated for their aesthetic appeal and enduring strength. Far from being merely a decorative element, these fences are constructed from a variety of components, each serving a distinct purpose. Understanding the parts of a rod iron fence can guide both homeowners and builders in making informed choices when it comes to installation and maintenance.


  • In today's fast-paced world, every household strives for seamless functionality and aesthetic appeal. One often overlooked yet crucial aspect is the maintenance of sliding doors, particularly their rollers. This is where Sliding Door Roller Replacement Inc comes into play, offering specialized services that rejuvenate the smooth operation of these doors, ensuring they glide effortlessly along their tracks.

  • Ornamental Steel Fencing

  • Wrought iron fencing has traditionally been the iron fencing of choice for houses and businesses. Handwork is required to produce the intricate designs standard in the wrought iron fence. To realize these designs, the iron must be worked. 

  • With the door safely on its side, you can now access the old wheels. Using pliers, remove the old wheels from their housing. Take note of how they fit and function, so you can properly install the new ones Take note of how they fit and function, so you can properly install the new ones Take note of how they fit and function, so you can properly install the new ones Take note of how they fit and function, so you can properly install the new oneschanging wheels on sliding screen door. The new wheels should be a direct replacement, fitting into the same housing and turning freely.

  • 3. Inspect for Wear and Tear Regularly check the rollers for signs of wear, cracking, or damage. Replace any broken components promptly to avoid further damage.


  • Inspect the roller for any signs of wear or damage, such as flat spots or cracks
  • In today's fast-paced world, security is paramount. Whether you're protecting your personal belongings or valuable documents, a steel lock box double offers unparalleled protection. This innovative storage solution combines the strength and durability of steel with the convenience of a double-layered design, providing you with peace of mind.
  • Adjusting Sliding Screen Door Wheels A Comprehensive Guide
  • A metal cash box with a lock is a practical and secure way to keep your money and valuables safe. These boxes come in various sizes and styles, but they all serve the same purpose – to protect your cash from theft or loss.

  • What are the Advantages of Wrought Iron?

  • 6. Lubricate the Rollers and Track Once you’ve successfully adjusted the rollers, apply a small amount of lubricant to the rollers and the track. This step is crucial as it reduces friction and ensures smoother operation over time.


  • Ornamental

  • Another advantage of stainless steel barn door handles is their sleek and modern design. These handles come in a variety of styles and finishes, allowing you to find the perfect match for your home decor. From classic brushed stainless steel to modern polished chrome, there's a handle to suit every taste. Plus, the minimalist design of these handles complements the rustic charm of barn doors, creating a cohesive and stylish look throughout your home.

  • Cast iron is vulnerable to rusting if it does not have a protective coating of carbonized oil, a process known as seasoning. 

  • Inspect the roller for any signs of wear or damage, such as flat spots or cracks
  • Another important factor to consider when selecting rollers for aluminum sliding windows is noise reduction. Low-quality or worn-out rollers can create squeaking or grinding noises when the window is opened or closed, which can be both annoying and disruptive. By choosing rollers that are specifically designed for noise reduction, homeowners can enjoy a quiet and peaceful indoor environment without the distraction of loud window operation sounds.

  • Investing in an outdoor lockable metal storage box is a smart decision for anyone looking to enhance their outdoor experience. These sturdy, secure, and versatile storage solutions protect your belongings, keep your space organized, and require little maintenance. Whether you're a gardening enthusiast, a DIY handyman, or someone who enjoys outdoor entertaining, a metal storage box can cater to your unique needs. With a variety of styles and sizes available, it's easy to find the perfect fit for your outdoor space. By making this investment, you’re not just securing your items; you’re also creating a more enjoyable and functional outdoor environment for yourself and your loved ones.


  • Preheating of the billet and extrusion die takes place before the actual extrusion process starts. The essence is to soften the billet to allow it to be forced through the die?

  • Pull Handles A Timeless Design Solution

  • It is also referred to as chromic acid anodizing, often resulting in the thinnest anodic coat of all the main options available. Typically, it yields about 20 to 100 micro-inches per material surface.

  • Louvre windows
    Louvre windows consist of multiple horizontal blades that are angled to allow for ventilation while keeping out rain and other elements. They are often used in commercial buildings, schools, and hospitals, where a high level of ventilation is required.
    Aluminium louvre windows are popular because they are durable and offer good insulation. They are also easy to maintain and come in a range of colors and finishes.

  • The design possibilities with cast iron are virtually endless. From ornate floral motifs to classical scrolls, mythical creatures, or geometric patterns, these gates can be customized to complement any architectural style - be it a stately manor, a Victorian townhouse, or a modern minimalist home. They serve as a statement piece, welcoming visitors with a touch of grandeur and setting the tone for what lies beyond.
  • Furthermore, aluminum extrusion profiles are environmentally friendly. They are made from recycled materials, reducing waste and conserving natural resources. Additionally, they are recyclable at the end of their lifespan, making them a sustainable choice for construction projects.

  • Aluminium Windows Profiles

  • Aluminum windows profile and aluminium doors profile have a series of excellent performances such as high hardness, strong toughness, good mechanical properties and corrosion resistance. The overall weight bearing capacity of the window is strong, wear-resistant and durable.

  • 3. Adjustable Rollers These are designed with an adjustable feature that allows users to fine-tune the height and alignment of the door, ensuring it operates correctly even if the floor is uneven.


  • Cast iron ornaments are also commonly used in furniture design. From table legs to chair backs, cast iron ornaments add a touch of elegance and sophistication to any piece of furniture. These ornamental pieces can be found in a variety of styles, from simple and understated to elaborate and ornate, making them a versatile choice for any design aesthetic
    cast
    cast iron ornaments.
  • 6. Close the screen door and test it to ensure that the roller wheels are working properly. If everything is working as expected, you're all set!