lithopone pigments factory
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2025-08-14 06:07
189
The history of lithopone factories in China dates back to the early 20th century when the first production facilities were established. The industry grew rapidly in the following decades, driven by the country's rapid industrialization and demand for raw materials. Today, China is the world's largest producer and exporter of lithopone, accounting for over 50% of global production.
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2025-08-14 06:01
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As a critical component in these diverse applications, the supply chain of micro TiO2 is vital
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2025-08-14 05:37
640
Titanium dioxide has similar uses in non-food products. It is used in sunscreen as effective protection against UVA/UVB rays from the sun, which creates a physical barrier between the sun’s rays and the skin. It’s also used to whiten paint, paper, plastic, ink, rubber, and cosmetics.
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2025-08-14 05:12
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Chinese manufacturers have been able to achieve economies of scale through advanced refining technologies and streamlined manufacturing processes. These advancements have allowed them to offer competitive pricing, making Chinese titanium dioxide more attractive to international buyers, particularly in sectors like paint, plastics, and cosmetics where TiO2 is extensively utilized.
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2025-08-14 04:56
506
Factories specialized in barium sulfate production employ different techniques to refine the mineral. The most common method is the wet process, where barite is ground and mixed with water, allowing lighter impurities to float while the heavier barium sulfate sinks. After separation, the resulting slurry is dried and heated to obtain the final product. Some advanced factories also utilize flotation or magnetic separation methods to enhance purity.
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2025-08-14 04:44
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Firstly, it's essential to understand what makes lithopone a preferred choice for many consumers. Unlike traditional lead-based paints, lithopone is free from harmful substances, making it an environmentally friendly option. Its superior coverage means that fewer coats are needed to achieve the desired finish, which translates to cost savings for homeowners and contractors alike. Moreover, lithopone's brightness index is higher than most pigments, ensuring a vibrant and long-lasting appearance on walls.
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2025-08-14 04:23
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At present, the domestic wet zinc smelting mainly adopts the roasting-leaching-electrowinning production process, and the zinc content in the acid leaching residue is generally 8-15%, some up to 20%, and the sulfur mass fraction is 6-12%, of which sulfuric acid The root mass fraction is 15-30%, mainly in the form of 0^0 4 (in this ammoniatic environment, the leaching rate of sulfate leaching in multiple stages can reach 70%). The zinc in the acid leaching residue is mainly in the form of ZnFe 2 0 4 . In order to recover these zinc, the treatment methods are currently available in the fire method and the wet method. The fire method is the rotary kiln evaporation method (Wilz method) and the fumigating furnace evaporation method. . The wet method has hot acid leaching or high temperature pressure leaching. The fire treatment process is long, the equipment maintenance is large, the investment is high, the working environment is poor, and a large amount of coal or metallurgical coking coal is consumed, which has low efficiency and large environmental pollution. Therefore, it is usually leached by hot acid or high-pressure leaching. These methods still have the disadvantages of: 1 consumption of a large amount of acid, low leaching rate, due to the large amount of calcium sulfate, calcium sulphate and other ultrafine particles to isolate the zinc oxide particles, resulting in Electrolytic zinc enterprises are difficult to leach in acid environment, and the second weak acid leaching is not meaningful because the recovery rate is too low. 2 If leached with strong acid, although ZnFe 2 0 4 is destroyed, the leaching rate is improved, but the iron leaching rate is also high (up to 60%). The pressure of iron removal is large, and more reagents are consumed. 3 High temperature and high pressure equipment is corroded. Serious, complicated equipment investment; 4 high operating costs, poor economic returns. 5 The last slag discharged is acid leaching residue, which brings new pollution to the environment. It has to be cured and landfilled, which not only pollutes the environment, but also wastes resources.
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2025-08-14 04:21
1290