The problem of low efficiency of dephenolization by scrubbing the tri-mixed fractions (phenol, naphthalene and wash oil) produced from coal tar processing was analyzed and solved.
对焦油加工系统生产过程中的中间产品酚、萘、洗三混馏分洗涤脱酚质量差的问题进行了分析、解决。
The parameters of washing deinking for old newspaper printed with water-based ink were studied in this paper.
在此条件下,洗涤法脱墨可以提高脱墨浆白度6。
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