改良西门子法制备多晶硅存在的技术瓶颈是大量副产物四氯化硅难以回收利用。
It is difficult to recycle a large amount of by product, silicon tetrachloride, which is the technical bottleneck existing in preparation of polycrystalline silicon by improved Siemens process.
研究采用漆酚与四氯化锡和四氯化硅制备漆酚硅锡聚合物的方法及其产物特性。
The preparation method and characteristics of urushiol SiSn polymer, which was formed by reacting urushiol with SiCl 4 and SnCl 4, have been studied.
本发明涉及多晶硅副产物四氯化硅的回收利用方法，属于多晶硅生产技术领域。
The invention relates to a method for recycling silicon tetrachloride as a by-product of polysilicon, belonging to the technical field of polysilicon production.
结果表明，与硅烷常压外延和四氯化硅常压外延相比，硅烷低压外延的杂质分布更为陡峭。
The results have shown that the doping profile of the low pressure epitaxy of silane is steeper than those of silane epitaxy and silicon tetrachloride epitaxy at atmosphere pressure.
本文系统地描述了白炭黑在工业中的应用，并介绍了现有的白炭黑制备方法，如以蒙脱石为原料的碱浸法、以四氯化硅为原料的气相法、以水玻璃为原料的沉淀法等。
The authors introduce its application in many fields and its current preparation techniques, e. g. taking montmorillonite as raw material to prepare amorphous silica by NaOH liquor lixiviation;
本文系统地描述了白炭黑在工业中的应用，并介绍了现有的白炭黑制备方法，如以蒙脱石为原料的碱浸法、以四氯化硅为原料的气相法、以水玻璃为原料的沉淀法等。
The authors introduce its application in many fields and its current preparation techniques, e. g. taking montmorillonite as raw material to prepare amorphous silica by NaOH liquor lixiviation;
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