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In the production process of wet-process phosphoric acid, the vacuum filtration system equipment and pipelines experience varying degrees of scaling and blockage. These scaling substances are mainly composed of KzSiF6, NazSiF6, and CaSO4·2H20. Particularly, phosphate ores with high potassium and sodium content exhibit severe scaling phenomena, which greatly hinder the normal production of wet-process phosphoric acid. The anti-scaling agents, solubilizers, and synergists for wet-process phosphoric acid are synthesized through specific processes, effectively resisting the formation of easily scaling substances during the filtration and delivery processes of wet-process phosphoric acid, especially the nucleation and crystal growth of KzSiF6 and NazSiF6. They can significantly loosen and reduce the adhesion of scaling substances nearby. With a certain amount of addition, they can greatly extend the continuous normal production cycle and have no adverse effects on the wet-process phosphoric acid production process and its subsequent processes, making them a very effective anti-scaling additive.
Key words: Phosphate compound fertilizer auxiliariesphosphoricprocess
This product is mainly used for the texturing production of monocrystalline silicon wafers cut by diamond wire, featuring good cleaning and texturing effects, low consumption, effective control of corrosion rate and amount, uniform pyramid structure, low reflectivity, wide process window, and does not contain low-carbon alcohols that are volatile and toxic.
Key words: processvelvetcorrosion
