The extractionraffinate can be concentrated by one-stage evaporation to obtain sulfuric acid with 80% of mass fraction.
萃余液经一次性蒸发浓缩,可得到质量分数80%以上的硫酸。
2
Based on production practice, various factors affecting the H2O2 content in the extractionraffinate during hydrogenperoxide production by anthraquinone process were summarized.