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Iron oxide is a commonly used dyeing agent in the chemical industry and industry. It has strong coloring power and good hiding performance, and is the best choice for the coating and pigment industry. Iron oxide red is the most used iron oxide pigment. The following describes the production process of iron oxide red.
In order to obtain stable iron oxide red, it is necessary to use iron oxide powder solid purification technology, and adopt solid purification techniques such as water washing and grinding. The silicon oxide-removed iron oxide powder is transported from the original acid regeneration station to the first-stage screening tank of the solid purification room by the negative pressure gas through the negative pressure gas. After the primary screening, the gravity enters the water washing tank, and the water washing tank passes through the pure water. The iron powder is mixed with water to form an iron powder slurry, and then gravity is introduced into the secondary screening tank. The iron powder slurry from the secondary screening tank is gravity flowed into the stirring tank, and the impurities in the iron powder are fully dissolved into the water by stirring. The mud from the agitation tank is pumped to the filter press for dewatering. The dehydrated mud cake is sent to the vibrating screen to separate the fine particles into the drying oven. The dried iron powder is sent to the vibrating ball mill to meet the finished product requirements. Finally, it is transported to the iron oxide red warehouse for transport by negative pressure gas.
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