利用双液浮选法回收硅片切割废料中SiC的试验研究

发布时间：2018-01-11 11:25

  本文关键词：利用双液浮选法回收硅片切割废料中SiC的试验研究　出处：《硅酸盐通报》2017年08期 　论文类型：期刊论文

  更多相关文章： 双液浮选 回收 碳化硅

【摘要】：研究了以煤油作为捕收剂和载体回收硅片切割废料中碳化硅的双液浮选工艺。研究捕收剂用量、pH值、固液比及粒度对回收碳化硅纯度的影响。通过单因素及正交试验,综合考虑极差分析和方差分析的结果,确定最优工艺条件为:捕收剂用量50 mL·g~(-1)、pH值为8.3、固液比为3∶400 g·mL~(-1)、粒度8.636μm,此条件下回收的碳化硅纯度达到99.08%。采用双液浮选工艺回收太阳能硅片切割废料中的碳化硅粉体具有显著的经济效益和社会效益。
[Abstract]:The double liquid flotation process for recovering silicon carbide from silicon wafer cutting waste with kerosene as collector and carrier was studied. The amount of collector and pH value were studied. The effects of solid-liquid ratio and particle size on the purity of recovered silicon carbide were studied. The results of range analysis and variance analysis were considered synthetically by single factor and orthogonal test. The optimum technological conditions are determined as follows: the dosage of collector is 50 mL 路g ~ (-1), the pH value is 8.3, the ratio of solid to liquid is 3: 400 g 路mL ~ (-1), and the particle size is 8.636 渭 m. Under this condition, the purity of the recovered silicon carbide is 99.08. It has remarkable economic and social benefits to recover the silicon carbide powder from the cutting waste of solar silicon wafer by using the two-liquid flotation process.
【作者单位】： 青海大学新能源光伏产业研究中心;
【基金】：青海省西宁市高新科技项目(2011-G-02)
【分类号】：TN304
【正文快照】： 1引言在众多可再生能源中,太阳能以其清洁性、安全性、充足性等成为人类最重要的无污染型新能源[1-3]。世界许多国家把太阳能光伏发电作为最具前景的发展产业。作为光伏发电的重要组成硅太阳能电池,其制造工艺的关键部分是把硅棒(锭)切割成为硅片。其工作原理是以金属丝带动磨，

本文编号：1409347