The wastewater of domestic sewage, chemical industry, biochemical pharmaceutical, metal surface treatment and other industries all contain a large amount of phosphorus, and the direct discharge of these wastewater into the water will cause phosphorus pollution. Cause water eutrophication, red tide and other phenomena, resulting in poor water quality, stink. The treatment of wastewater containing phosphorus has become a topic of concern. The lanthanum modified adsorption material is specific to phosphorus and can remove a large amount of excess phosphorus in water, which can effectively reduce the risk of water pollution and cyanobacteria outbreak. Lanthanum chloride and lanthanum cerium chloride are widely used for phosphorus removal in wastewater.
Lanthanum Cerium Chloride, molecular formula：LaCeCl3. Lanthanum chloride is a white crystalline or lump solid, soluble in water and alcohol, dehydrated by heat, easily deliqued in humid air. Mainly used for petroleum cracking catalyst and a variety of rare earth salt raw materials, but also widely used in chemical, metallurgical textile, rare earth fertilizer, steelmaking filler, textile additives, water treatment agent of high quality raw materials, preparation of rare earth stearate raw materials. Main functions it is metal ion adsorption,it also can reduce 'Boron' besides 'P'.
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Lanthanum chloride is generally considered to include anhydrous lanthanum chloride and polyhydrous lanthanum chloride compounds. Lanthanum chloride chemical formula LaCl3. Molecular weight 245.27. White crystal or lump solid. Easy deliquescence. The melting point is 860℃, the boiling point is higher than 1000℃, and the relative density is 3.84225. Highly soluble in water (decomposes in hot water), ethanol and pyridine, insoluble in ether and benzene. Easy to form double salt with alkaline hydroxide. Lanthanum iodide is formed when heated with dry hydrogen iodide at its melting temperature. When it is mixed with sodium pyrophosphate solution, lanthanum hydrogen pyrophosphate is precipitated. This precipitate dissolves when the solution is stirred, but after a few days crystallizes into small, round, white spherical crystals (trihydrate salts).
Lanthanum chloride, is the very important raw materials for FCC catalyst and water treatment, and it also has some applications in the field of optics, such as for the preparation of laser crystals and optical glasses.
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Post time: Jan-12-2024