化工英文翻译

为了从大豆油脚中提取大豆卵磷脂，用有机溶剂法，经过浓缩、丙酮脱油、乙醇提取、活性炭吸附脱色等工艺对提取条件做了系统实验，研究各个工艺参数对提取产率与纯度的影响，通过试验及查阅文献等方法，综合讨论，结果表明，丙酮的脱油温度和时间，乙醇的提取温度和时间等是影响提取效率的主要因素。针对丙酮，乙醇进行实验分析，用较适宜的工艺方法：大豆油脚体积的5%的水，水化脱胶温度80℃左右，水化时间大约1个小时左右，丙酮去油3次, 丙酮总量为粗磷脂体积的15倍,用丙酮对油脚脱油的温度45℃，脱油时间60min，得到粗磷脂后，再用乙醇纯化提取，温度为70℃，提取时间60min以内，吸附剂选择粉状活性碳，可得到纯度为80%的卵磷脂。

不要在线翻译的

In order to extract soybean oil soybean lecithin feet, with an organic solvent, after concentrated, acetone de-oil, ethanol extract, such as activated carbon adsorption bleaching process on the extraction conditions of the system to do experiments on the various process parameters on the extraction yield and purity of the influence, through the testing and inspection of documents and other methods, comprehensive discussion, results showed that the acetone off the oil temperature and time, ethanol extraction temperature and time are the main factors affecting extraction efficiency. For acetone, ethanol experimental analysis, using a more suitable process methods: foot volume of soybean oil 5% of water, hydration degumming temperature of 80 ℃ or so, hydration time is about 1 hour or so, acetone to the oil three times, the total acetone volume 15 times the volume of crude lecithin with acetone feet off the oil the oil temperature 45 ℃, de-oil time 60min, get after the rough phospholipids, and then purified ethanol extract, the temperature is 70 ℃, extraction time of 60min within the sorbent selection powdered activated carbon, obtained a purity of 80% of the lecithin.