r996 titanium dioxide paint factory

Rutile titanium dioxide R-996, white powder, insoluble in water, non-physiological toxicity, stable chemical properties, surface coated with silicon, aluminum, zirconium and organic treatment has excellent pigment performance, whiteness, brightness, good gloss; Strong hiding power, achromatic power and fluidity Rutile titanium dioxide, white powder, insoluble in water, non-physiological toxicity, stable chemical properties, excellent pigment performance after the surface is coated with silicon, aluminum, zirconium and organically treated, whiteness , Brightness, good gloss, hiding power, achromatic power and fluidity are strong, with excellent weather resistance and anti-powder properties.

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③ Paper making industry: Paper making and paper products industry is the third largest application industry of titanium dioxide. Paper using titanium dioxide has good whiteness, high strength, luster, thin and smooth, and is not easy to penetrate when printing. Under the same conditions, the opacity is 10 times higher than that of paper using calcium carbonate and talc powder, and the weight can also be reduced by 15% to 30%. The amount of titanium dioxide in decorative paper accounts for 20%~40% of its raw materials, and the amount of titanium dioxide in other papers is about 1%~5%. Due to the continuous adjustment of the industrial structure of the paper products industry from 2016 to 2018, according to the data of China Paper Association, the output of China's paper products in 2019 was 72.19 million tons, a significant year-on-year increase of 29.4%, and the use of titanium dioxide increased significantly.

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The raw material used in this method is FeSO4. In order to maintain the Fe3 + concentration in the reaction medium in a specific range, reducing agent iron sheet is added in the reaction process. Iron yellow crystal seed was added and air was introduced to synthesize iron yellow under certain pH conditions. The method mainly includes two steps: (1) firstly, FeSO4 · 7H2O is used as raw material, NaOH or NH3 · H2O is used as precipitant or pH regulator, and air is used as oxidant to prepare crystal seed; (2) Iron yellow is produced by two-step oxidation with crystal seed, FeSO4, iron sheet and air.

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