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有机硅单体共沸物的分离和再利用 被引量:2
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作者 张亚文 《中国高新技术企业》 2016年第7期56-57,共2页
用有机硅单体共沸物和无水乙醇为原料,经过常温液液预酯化后,在连续反应塔内进行气液相酯化反应。共沸物内未反应的三甲基氯硅烷经酯化塔顶回收,四氯化硅和乙醇反应生成正硅酸乙酯粗品。正硅酸乙酯粗品经过中和、过滤后,进行减压精馏,... 用有机硅单体共沸物和无水乙醇为原料,经过常温液液预酯化后,在连续反应塔内进行气液相酯化反应。共沸物内未反应的三甲基氯硅烷经酯化塔顶回收,四氯化硅和乙醇反应生成正硅酸乙酯粗品。正硅酸乙酯粗品经过中和、过滤后,进行减压精馏,最终得到纯度合格的正硅酸乙酯产品。 展开更多
关键词 有机硅单体共沸物 酯化 完全酯化 连续酯化 减压精馏
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Complete Valorization of Olive Mill Wastewater through an Integrated Process for Poly-3-hydroxybutyrate Production
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作者 Vito Emanuele Carofiglio Roberta Romano +6 位作者 Maurizio Servili Antonio Goffredo Pietro Alifano Gianluca Veneziani Christian Demitri Domenico Centrone Paolo Stufano 《Journal of Life Sciences》 2015年第10期481-493,共13页
An economical and environmental sustainability of bioplastic production is dependent on the use of low cost and waste C-sources as raw materials. OMW (Olive Mill Wastewater) with its high organic load represents a d... An economical and environmental sustainability of bioplastic production is dependent on the use of low cost and waste C-sources as raw materials. OMW (Olive Mill Wastewater) with its high organic load represents a dangerous polluting waste. Herein the authors present an integrated process for the simultaneous recovery of polyphenols, high value natural antioxidants, production of PHAs (polyhydroxyalkanotes), thermoplastic bio-polymers, in particular of PHB (poly-3-hydroxybutyrate) starting from OMW. The combination of membrane filtration and bacterial digestion of OMW resulted in very high yields of polyphenols (3 2.5 g/L) and PHB (31.4 mg/L.h) if compared with the state of the art. These results make the technical approach described here effective for reducing the polluting effect of OMW and maximizing the valuable product yield. Moreover the process is readily suitable for an industrial scale PHB production from OMW. 展开更多
关键词 Poly-3-hydroxybutyrate olive mill wastewater POLYPHENOL Azotobacter vinelandii UWD membrane filtration.
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