1) stepwise countercurrent extraction
分段逆流抽提
2) three-stage counter current extraction system
三级逆流抽提系统
3) 2-stage extraction
二段抽提
1.
To maximize the production of high added-value microcrystal wax, the existing 150,000 TPY super-critical butane deasphalting unit whose major product was FCC feedstock has been revamped into a 180,000 TPY propane deasphalting unit using 2-stage extraction-settlement process.
18 Mt/a丙烷脱沥青装置,改造采用脱沥青油二段抽提-沉降工艺,核心设备抽提塔应用清华大学开发的溶剂脱沥青高效萃取塔,几年来,装置运行安全平稳,产品轻、重脱沥青油的收率高且质量好,剂耗、装置能耗等技术经济指标均较理想。
4) multi-stage countercurrent extraction
连续阶段逆流提取
1.
Analyze and research on dynamic multi-stage countercurrent extraction;
动态连续阶段逆流提取工艺分析与研究
5) countercurrent extraction
逆流提取
1.
The results showed that the optimal conditions were as follows:countercurrent extraction of 4 levels,pH 9 at 80 ℃,with 1︰30 as the original ratio of material to solvent,and 30 min,20 min,15 min or 10 min as extracting time in respective gradient level.
以水为提取剂对米糠黄酮逆流提取,研究了该工艺中影响黄酮提取率的主要因素,得出了合理的操作参数,即提取温度80℃,提取液pH 9,最初料液比1 g︰30 mL,提取时间逐级为30、20、15和10 min的4级逆流提取,此时黄酮的提取率及原料、溶剂的利用率均最高。
2.
A new method of tea extraction was introduced,and analyzed the process of countercurrent extraction.
介绍了一种茶叶浸提的新方法,并对逆流提取的过程进行了分析。
3.
Objective:There were little lab-scale research on dynamic continuous countercurrent extraction from Traditional Chinese Medicine, so a lab-scale simulated method was put forward.
目的:针对目前极少实验室规模研究中药材多效动态连续逆流提取,提出一种实验室模拟方法,为该种方法的中试化奠定基础。
补充资料：6抽提溶剂油
6(号)抽提溶剂汽油主要成分为C6-C8脂肪烃，分子式CH3(CH2)4-6CH3。水白色透明液体，相对密度(20 ℃／4℃)0.655-0.681。易溶于有机溶剂，难溶于水。挥发速度快，化学性质稳定。易燃，无毒。
用作快干溶剂和稀释剂。贮存于阴凉、通风、干燥的库房内，远离火种、热源。
用作快干溶剂和稀释剂。贮存于阴凉、通风、干燥的库房内，远离火种、热源。
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