The major problem of solvent extraction dephenolization process is that crude benzol dissolve in ammonia liquor.
以粗苯为溶剂萃取脱酚,粗苯的主要消耗是其在处理后氨水中溶解的损失。
2
The consumption of crude benzol is obviously reduced by decreasing the extraction temperature properly and it doesn't influence the efficiency of dephenolization.