1) acidic-basic precipitation
酸碱液沉淀
1.
Four methods including liquid-liquid extraction,basic-solution extraction,acidic-basic precipitation and ion-exchange chromatography were applied in pretreatment of the paclitaxel purification and were compared in terms of impurity elimination rate,the decoloration rate and paclitaxel recovery.
本文以除杂率、脱色率和紫杉醇回收率为定量指标,比较了萃取、碱液洗涤、酸碱液沉淀和离子交换树脂四种方法的优劣。
2) acid-alkaline precipatation
酸碱沉淀
1.
Using acetone as extraction agent,Hypocrellin A is seperated and purified from Shiraia bambusicola by acid-alkaline precipatation combined with Soxhlet extraction.
以丙酮作为提取剂,采用索氏提取法与酸碱沉淀法相结合,从竹黄中分离、纯化竹红菌甲素。
3) acid-alkali alternate precipitation
酸-碱交替沉淀
1.
The Cu-based catalyst(500 g) for methanol synthesis was prepared by an acid-alkali alternate precipitation method.
采用酸-碱交替沉淀法制备了Cu基甲醇合成催化剂放大样(500 g),并用X射线衍射、低温N2吸附和扫描电子显微镜等对催化剂进行了表征,系统考察了制备条件(搅拌速度、溶液滴加速度、盐和碱溶液浓度等)对催化剂性能的影响。
4) acid-alkali-based alternate precipitation method
酸-碱交替沉淀法
5) α-amylase hydrolysis
碱溶酸沉淀法
1.
Preparation of wheat germ protein by combining alkali dissolution-acid deposition with α-amylase hydrolysis;
与传统的碱溶酸沉淀法相比,该方法明显地提高了小麦胚芽蛋白的纯度和得率,其数值分别达到94。
6) alkaline chemical precipitation
加碱沉淀
1.
For the problems such as high content of chromium(Cr~(3+)),complex composition and poor purity after precipitation in tannery chrome effluents,optimized direct alkaline chemical precipitation,alkaline chemical precipitation after flocculation and new method of silicon-ferroalloy were used to recycle chrome of tannery chrome effluents in the experiment.
针对制革厂铬鞣废水含铬(Cr3+)量高、成分复杂、沉淀后铬泥纯度低的问题,本实验采用优化后的直接加碱沉淀法、絮凝后再加碱沉淀法和新型的硅铁电极法来回收铬鞣废水中的铬。
补充资料：皂化碱液
分子式：
CAS号：
性质：又称皂化碱液(soap alkali，lye)。皂粒碱析时形成的含碱废液称为皂化(碱)液。皂化(碱)液在洗涤工艺中逆流套用，最后以盐析废液(甘油废液)排出系统。
CAS号：
性质：又称皂化碱液(soap alkali，lye)。皂粒碱析时形成的含碱废液称为皂化(碱)液。皂化(碱)液在洗涤工艺中逆流套用，最后以盐析废液(甘油废液)排出系统。
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