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本文采用碳酸盐—氢氧化物共沉淀的方法制备了 Mn—Zn 铁氧体.x-射线衍射、热分析及红外光谱的研究表明,沉淀物是结晶形和无定形碳酸盐及氢氧化物凝胶体的混合物.用 FTS-ISC 型福里叶红外光谱仪,半定量地测定了沉淀物中金属碳酸盐和金属氢氧化物的相对含量.用湿式化学分析法测定了沉淀物中铁、锰及锌的含量.实验表明.沉淀剂的用量、反应混合液的 PH 值、沉淀温度、搅拌速度及溶液注入的次序等条件,对沉淀物的物理、化学性能影响很大.适当控制上述参数.即可获得容易洗涤、过滤.化学成分偏离很小的铁氧体粉料.这种方法成本低、适宜于较大批量的生产中采用.
In this paper, Mn-Zn ferrite was prepared by coprecipitation of carbonate-hydroxide.X-ray diffraction, thermal analysis and IR spectra showed that the precipitate was crystalline and amorphous carbonate and hydroxide The mixture of gels was determined semi-quantitatively using a FTS-ISC Fourier transform infrared spectrometer to determine the relative contents of metal carbonate and metal hydroxide in the precipitate. The contents of iron and manganese in the precipitate were determined by wet chemical analysis And zinc content.Experiments show that the amount of precipitant, the pH value of the reaction mixture, the precipitation temperature, the stirring speed and the order of solution injection and other conditions, the physical and chemical properties of the precipitate have a great influence on the appropriate control of the above parameters. You can get easy to wash, filter.Chemical composition of ferrite powder is very small.This method is low cost, suitable for larger batch production.