1) recovered wash oil
回收洗油
1.
High purity biphenyl was separated from recovered wash oil of coal tar through batch distillation under vacuum and crystallization.
从煤焦油回收洗油中利用减压精馏、二次结晶的工艺路线,先减压精馏去除部分β-甲基萘和α-甲基萘等前馏分,获得纯度为70%左右的富集联苯馏分,进一步结晶去除二甲基萘和吲哚等杂质获得高纯度的联苯产品。
2) clean and reuse
清洗回收
3) recovery and rinsing
回收清洗
1.
Thus two quiescent troughs for recovery and rinsing were linked to the nickel-plating trough and insulative lacquer was painted on the hanging units at every shift.
审核过程中,在镀镍槽后增设2个静止的回收清洗槽,每生产班次都对挂具刷绝缘漆,通过镍的物流实测验证,镍的利用率从70%提高到87%。
4) wash recovered water
正洗回收水
5) recovery scrubber
回收洗涤器
6) Sharples wool washing
沙普尔斯油脂回收洗毛法
补充资料：焦炉煤气回收粗苯的富油脱苯装置
焦炉煤气回收粗苯的富油脱苯装置
72．焦炉煤气回收粗苯的富油脱苯装置
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条