焦化厂苯精制的副产品-苯残渣，一般采用配入焦油中或外卖的处理方法．其中的苯类产品得不到有效回收。
Normally the by-product. benzene residue. in benzene refining in coking plant is put into tar or sold and so the benzene product in the residue cant be recovered.
粗苯精制工艺产生的酸焦油，一直是困扰焦化厂的问题，综述了其综合利用的新方法、新工艺。
The acidic coal tar from rude benzene refining is always the problem of the coking factory, this paper summed up whose comprehensive utilization in new method and new process.
本厂其它产品有：420再生活化剂、T501抗氧剂、精制420活化剂、煤焦油、松焦油、双戊烯、白油膏、黑油膏等。
Other products: 420 reclaimed activator, T501 antioxidant, refined 420 activator, coal tar, pine tar, dipentene, white factice and black factice.
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