提纯方法 meaning in English

method of purification

Abstract : the synthesis and refinement of 2 , 3 - dichlorobenzaldenyde aredescribed in this thesis . by the new refinement the total receipt rate is raised from 32 . 6 % to 45 %
文摘:介绍了2 ， 3 -二氯苯甲醛的合成及提纯方法，采用新的提纯方法，可使总收率由文献值32 6提高到45 。
In this paper , the crystal structure of montmorillonite is introduced and the purification methods ( including gravity separation , hydraulic classification , flocculation , centrifugal separation and chemical purification ) , the purification principles and purification effectiveness of the methods were summarized
摘要总结了蒙脱石的各种提纯方法及其试验原理和提纯分离效果，主要涉及重力选矿、水力分析、絮凝法、离心分离和化学提纯。