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离心场强化晶硅切割废料sisic分离过程油水分相
Authors
万小涵
王东
+3 more
王占奎
王志
马文会
Publication date
1 January 2019
Publisher
Abstract
对切割料中Si和Si C的高效分离进行了研究,利用晶硅切割废料中Si和Si C表面性质的差异,向浆料中加入柴油并充分乳化,使SiC吸附在油滴上实现Si/SiC分离,对乳化后的浆料施加离心力强化油水分相,调节浆料pH值改变颗粒表面Zeta电位,调控乳化后的油滴大小,研究了Si/Si C分离效果、分相时间与浆料pH的关系及附有Si C的油滴表观密度与油滴直径的关系,对乳化后的浆料分别施加超重力系数为10, 50, 100, 150和200的离心力,考察了离心时间2 min时的分相效果和Si/SiC分离效果。结果表明,常重力场中,油滴尺寸越小,分相时间越长,但Si C去除效果变好,pH=7时,水相Si C含量为4.23wt%。油滴直径小于64?m时,油滴在浆料中不可上浮。离心场中,超重力系数为100, p H=7时,水相中Si C含量为5.47wt%,分相时间由460 min缩短为2 min。通过对离心场中Si C的受力分析解析了离心场中Si C在油滴表面的赋存状态,证实离心场作用下,Si C沿油滴表面向离心力方向移动使油滴对Si C的吸附力减小
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Institutional Repository of Institute of Process Engineering, CAS (IPE-IR)
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oai:ir.ipe.ac.cn:122111/36808
Last time updated on 05/12/2019
Institutional Repository of Institute of Process Engineering, CAS (IPE-IR)
See this paper in CORE
Go to the repository landing page
Download from data provider
oai:ir.ipe.ac.cn:122111/36806
Last time updated on 05/12/2019
Institutional Repository of Institute of Process Engineering, CAS (IPE-IR)
See this paper in CORE
Go to the repository landing page
Download from data provider
oai:ir.ipe.ac.cn:122111/47280
Last time updated on 11/04/2021
Institutional Repository of Institute of Process Engineering, CAS (IPE-IR)
See this paper in CORE
Go to the repository landing page
Download from data provider
oai:ir.ipe.ac.cn:122111/47282
Last time updated on 11/04/2021