The traditional method to remove zinc coating from matrix has some problems, such as complicated process, expensive cost, and environmental pollution problems. In our article, mechanical method is proposed to remove zinc from galvanized sheet. Using this method, In the paper, the galvanized sheet can reused by an easy and low-cost method. The paper mainly introduces the technological process, best choice of abrasive material and analysis of the results. Under laboratory conditions, this study has achieved some achievements, which has some guiding significance for removing abandoned tobacco zinc coating in future practical production.
Nitric acid strontium and potassium silicate as raw material, the strontium silicate was synthesized preparation the strontium silicate was synthesized by chemical deposition method, and the strontium silicate was sintered for three hours in 850 °C, 1000 °C and 1150 °C. The effect of sintering temperature on phase composition, microstructure and the influence of purity of strontium silicate was studied using X-ray diffraction and electron scanning electron microscope and differential thermal-hot heavy analyzer. The formation mechanism of strontium silicate by chemical deposition method was analyzed. The results show that: the sintering temperature is effect on phase composition and microstructure of the strontium silicate, Compared with traditional high temperature solid reaction process, the chemical deposition method could greatly reduce the sintering temperature, and improve the powder purity.
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