用Raman光谱和紫外光谱研究了不同方法制备的含SiO_2的铝酸钠溶液,并与工业熟料的溶出液进行了对比。SiO_2的存在状态随制备方法而异。工业熟料的溶出液含有带Si-O-Si结构的聚硅酸离子。
The anionic species of the SiO_2-containing sodium aluminate solutions preparedby different methods have been investigated by Raman spectra and ultraviolet spectra. It wasfound that these solutions contain different Si-containing anions. The solution prepared byleaching industrial sinter of soda-lime sintering process contains polysilicate ions with Si-O-Siradicals.
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