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1958年中国科学院化工冶金研究所(现过程工程研究所)的创建,与建国初期的国家经济发展和国防建设的需求紧密相关。1956年陈家镛受到世界著名冶金学家叶渚沛的邀请,到正在筹建中的化工冶金研究所工作。作为国内该领域开拓者和学术带头人,陈家镛院士的学术经历是本文主线。以他带领同事们开展湿法冶金研究为案例,分析了国家重大战略需求与科学技术研究之间的关系。重点介绍了他在冶金、化工、材料等研究领域做出的重要学术贡献,以及将代表性科研成果经过中间试验应用于实际生产、解决企业所面临的技术难题的情况。藉此反映了以过程工程研究所为代表的国立科研机构,围绕国家重大战略需求开展科技攻坚的历程与成果。 相似文献
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A new mixer-settler-mixer three chamber integrated extractor is proposed in this work for liquid-liquid-liquid three phase countercurrent and continuous extraction.Experiments revealed the influences of the structural design of the three-liquid-phase extractor and some key operational parameters on three-phase partition of two phenolic isomers,p-nitrophenol(p-NP) and o-nitrophenol(o-NP).The model three-liquid-phase extraction system used here is nonane(organic top-phase)-polyethylene glycol(PEG 2000)(polymer middle-phase)-(NH4)2SO4 aqueous solution(aqueous bottom-phase).It is indicated that agitating speed and retention time in three-phase mixer are key parameters to extraction fraction of nitrophenol.Dispersion band behavior is related to agitating in-tensity,and its occurrence does not affect the extraction fraction of target compounds.The present work highlights the possibility of a feasible approach of scaling up of the proposed three-phase extraction apparatus for future in-dustrial-aimed applications. 相似文献
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