摘要
1-氨基-4-溴蒽醌-2-磺酸钠是染料工业的一种重要中间体。试验方法是以邻二氯苯为溶剂,采用氯磺酸为磺化剂的磺化工艺和有机弱酸性水介质的低温溴化工艺,经磺化、溴化、中和、过滤、盐析、压滤等工艺过程制得成品。该工艺的改进提高了产品收率和溴的利用率,降低了废水产生量,从而降低生产成本,提高企业经济效益。
1-Amino-4-bromo-anthraquinone-2-Sodium is an important dye intermediate industries.In this paper,the experimental method is based on o-dichlorobenzene as solvent using chlorosulfonic acid as sulfonating agent of the sulfonation process and organic low-temperature weakly acidic aqueous bromide process,after sulfonation,bromination,neutralization,filtration,salting-out,pressure filtration processes such as the system was finished.The process improvements to improve product yield and bromine utilization,reducing the amount of wastewater generated,thus reducing production costs and improve economic efficiency of enterprises.
出处
《盐业与化工》
CAS
2010年第3期24-26,共3页
Jounral of Salt and Chemical Industry
关键词
邻二氯苯
溴化反应
磺化反应
O-dichlorobenzene
bromide reaction
sulfonation
