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- toluene distillation method 甲苯蒸馏法
- An azeotrope former, toluene, is added to the phenol-water mixture to form a new much easier separation azeotrope to seporate phenol-water mixture completely by azeotropic distillation method... 为此,在苯酚-水物系中加入了一种共沸剂甲苯,用共沸精馏法实现了苯酚-水混合物的分离。分离后的水可以直接送到生化装置进行处理,苯酚回收供反应系统循环使用。
- Determination of water content.Azeotropic distillation method. 英文名称： Surface active agents and soaps.
- Because of a azeotrope is formed between phenol and water,the phenol-water mixture can not be separated completely through common distillation method. 由于苯酚和水能形成共沸物,因此不能用普通精馏方法将它们分离。
- They use a distilling method, right? 用的是蒸馏的方法，对不对？
- In this paper,benzyl chloride,benzalcohol and phenol was dissociated from phenolic resin by adopting water vapour distillation method. 这种树脂的生产过程控制和产品质量检验时,涉及游离酚、氯化苄和苄醇的分析测定,如果采用分别测定,其操作相当繁琐,准确性也不高[2-6]。
- In this paper, the author proposes a method for the optimal design of pretreating industrial wastewater by distillation method. 提出用精馏法预处理工业废水的一种优化设计方法。
- Elsholtzia rugulosa seed oil were extracted by squeezing method,solvent extraction method,molecular distillation method and supercritical extraction. 采用压榨法、溶剂浸提法、分子蒸馏法、超临界法提取了野香苏籽油。
- The results showed that different distillation method affected the testing data.The standard curve was rectilinear from the rage of 50ng/L to 4050ng/L. 比较了用不同方法处理样品对检测结果的影响，通过对检测范围、精密度、回收率等项目的测定，验证了该方法的可靠性。
- The paper formulizes the mechanism and technological process of treating DDNP wastewater and of realizing water closed cycle by underpressure distillation method. 简要概述了化工厂DDNP废水来源及水质,详细阐述了减压蒸馏法处理DDNP废水实现水闭路循环的机理、工艺流程。
- Method: Extract volatile oil from green, stir-baked with rice and bran Codonopsis pilosulaby by wet distillation method, and separate and identify them by GC-MS technique. 方法利用水蒸气蒸馏提取党参挥发油的方法，分别提取党参片、米炒党参、麸炒党参，利用GC-MS联用技术对挥发油成分进行分离鉴定。
- The fir essential oil was extracted from fir root by steam distillation method, from which cedrol was extracted, and then, cedrol methyl ether was synthesized based on cedrol. 以杉木根为原料通过水蒸气蒸馏法提取杉木精油，从杉木根精油中精制提取柏木脑，再以柏木脑为原料合成甲基柏木醚。
- The gravimetry method by directly adding calcium carbide to determine the moisture content in tar was introduced, and was compared with the distillation method. 介绍了直接加入电石测定焦油水分的称量法,并且与蒸馏法进行了对照,用新方法测定的焦油样,其精密度和准确度较高。
- This paper describes the distillation method, the chemical components and the products quality control standard of essential oil of Melaleuca alternifolia. 文章叙述了互叶白千层芳香油的提取方法、化学组分及产品质量控制标准。
- Grain spirit Grain spirit refers to spirit made with sorghum, corn, rice, glutinous rice, barley, wheat, millet and qingke (highland barley) as raw materials by the distillation method after saccharification and fermentation. 粮食白酒粮食白酒是指以高梁、玉米、大米、糯米、大麦、小麦、小米、青稞等各种粮食为原料，经过糖化、发酵后，采用蒸馏方法酿制的白酒。
- Obtained by way of ancient distillation methods from genetically im proved fresh fruits and flowers. 以古老的蒸馏法由品种改良的鲜果及花朵中萃取而得。
- The results indicated that the reproducibility and percent recovery of Duffau distillation method all meet the requisition of analytical experimentation, and the analytical results are accurate. 测定结果表明:Duffau蒸馏法的重复性和回收率均达到分析要求,并且分析结果准确可靠;
- The method seems good but it needs to be tried out. 这个方法似乎不错，但需要试验一下。
- Today, the retorts and pot stills have been largely supplanted by more efficient distillation methods in most industrial processes. 如今，在许多工业过程中，绝大部分曲颈瓶和罐式蒸馏器已被效率更高的蒸馏方法代替。
- A typical experiment of abstraction of Paeonol from Cortex Moutan using vapor distillation method was introducted,and the experiment could be operated easily and have less of environmental pollution. 推荐一个用水蒸气蒸馏法从中药牡丹皮中提取丹皮酚的经典实验,该实验可操作性强,不污染环境,既可训练基本操作,又与生产实践相结合,容易激发学生的学习兴趣。
