More than two kinds of material mixed in mixing equipment. This method is simple and feasible, for example conversion absorption manufacturing desulphurizing agent, is the active component (such as manganese dioxide, Zinc Oxide, zinc carbonate) and a small amount of binder (such as Magnesium Oxide, calcium oxide) continuous addition of a turntable can adjust the speed and inclination ofpowder metering, and injected into the metering of water.
Powder rolling mixed bond, forming uniform diameter of a sphere, the sphere afterdrying, baking is finished. Fe-Cr-K-O catalyst for Ethylbenzene Dehydrogenation to styrene, is made of iron oxide, potassium chromate and other solid powderpressing, roasting. Using this method should be the size and physical properties ofpowder attention.
In the manufacture of multicomponent catalyst, the suitable precipitation conditionsto ensure product uniformity and manufacturing high-quality catalyst is very important. The usual approach is to precipitation agent is added in one or more metal salt solution (such as sodium carbonate, calcium hydroxide), precipitation,filtration, washing, drying, molding, roasting (or activation), so that the final product.
If in the settling tank into the insoluble material (such as diatomaceous earth), the metal oxide or carbonate attachment of this insoluble material precipitated, calledattachment precipitation method. Precipitation method to filter washing equipmentand efficient, in order to save water, avoid material leakage loss.