High Level Material Silicon Calcium

A silicon-calcium composite polyaluminum ferric chloride flocculant and its production method. The average chemical composition of this flocculant is represented by the formula [(AlFe)A#O&(OH)BClC(SiOX)DCaE]n, where when n=1, A=1.0, B=3.1-3.5, C=0.20-0.50, D=0.030-0.10, E=0.20-0.40, and 2.0≤X≤4.0. The production method is completed in three steps: extraction, polymerization, and drying. It is characterized by first adding sodium silicate as a catalyst and stabilizer to the extraction solution, followed by adding alkaline earth metal salts as polymerization agents for a rapid polymerization reaction. The reaction conditions are at room temperature and normal pressure, with a pH of 4.0-5.0, for a duration of 30-90 minutes. The product features a large molecular structure, fast flocculating speed, and a wide pH adaptability for raw water.

1.In the field of iron and steel metallurgical analysis technology, this is a method for determining the content of aluminum, calcium, barium, strontium, and phosphorus in silicon-calcium-barium alloys using ICP. The method involves dissolving the sample with nitric acid and hydrofluoric acid, fumigating with sulfuric acid, diluting to a certain volume, and introducing the aerosolized solution into an inductively coupled plasma atomic emission spectrometer to measure the intensity of the spectral lines of the substances to be tested; the concentration of the corresponding elements in the substance can be calculated based on the intensity of the spectral lines from known concentration standards. The advantages include the ability to quickly and accurately analyze the content of calcium, barium, aluminum, phosphorus, and strontium in silicon-calcium-barium alloys, with no pollution. Additionally, barium and strontium, which cannot be separated by chemical analysis methods, can be separated using this method.

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