Unlike conventional solvent extraction, membrane extraction is a dispersion-free extraction process.
与通常的溶剂萃取过程不同，膜萃取过程中没有相分散行为发生。
This paper relates to the synthesis of sucrose polyesters by sucrose and fatty acid using solvent-free process.
本文旨在研究以长链脂肪酸和蔗糖为主要原料合成蔗糖多酯的工艺路线。
Influences of process data, solvent, ration of-NCO and-OH on free-TDI content is also discussed.
介绍其反应工艺参数、溶剂、-NCO与- OH的配比等对游离tdi含量的影响。
High-level cottonseed oil, gossypol-free cottonseed meal and methanol phase abundant in free gossypol (FG) could be obtained by the leaching process with a two-liquid phase solvent (TPS) system.
用双液相溶剂（TPS）浸取棉仁可得到棉油、无毒饼粕及富含游离棉酚（FG）的甲醇相。
Finally the technologies of water - based and solvent-free top coats, and roller-coating can reduce the pollution in finishing process.
采取水基或无溶剂顶涂剂、辊涂技术则可减少整饰工段的污染。
Finally the technologies of water - based and solvent-free top coats, and roller-coating can reduce the pollution in finishing process.
采取水基或无溶剂顶涂剂、辊涂技术则可减少整饰工段的污染。
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