The major factors that affect benzene quality like excessive water and sulfur in aromatic extraction distillation unit are described.
介绍了芳烃抽提蒸馏装置苯产品水含量超标、硫含量波动较大的影响因素。
Distillation extraction method is used for extracting the volatile constituents of the Herba Selaginellae. The average oil yield obtained is 2.85%.
报道了用水蒸汽蒸馏萃取法提取卷柏中挥发性物质，测得卷柏挥发油的含量为2.85%。
Mass transfer processes, including gas absorption, distillation, extraction, adsorption, drying.
传质过程，包括气体吸收，蒸馏，萃取，吸附，干燥。
METHOD: To extract the volatile oil by steam distillation or supercritical fluid extraction (SFE).
方法：用水蒸汽蒸馏法和超临界流体萃取的方法提取挥发油。
Conclusion: Steam distillation is the most proper extraction method of paeonol from cortex moutan.
结论：直接水蒸气蒸馏法可以作为实验室提取丹皮酚的最佳方法。
ObjectiveTo understand the questions and solutions in extraction volatile oils from the traditional Chinese medicine by vapour distillation.
目的了解水蒸气蒸馏法提取中药挥发油存在的问题及解决方法。
Three high and new separation technologies are introduced in this article: molecular distillation technology, supercritical extraction technology, high efficiency centrifugal mass transfer technology.
本文介绍了三项高新分离技术：分子蒸馏技术、超临界萃取技术及高效离心传质技术。
To study the selection of the best operation condition of supercritical CO2 extraction and molecular distillation.
研究超临界CO_2萃取和分子蒸馏最佳操作条件的选择。
OBJECTIVE: To evaluate the solid-phase microextraction versus Steam distillation in the extraction of volatile oil in Jatamans Valeriana Rhizome.
目的：比较固相微萃取法与水蒸气蒸馏法提取蜘蛛香挥发油成分的差异。
PURPOSE: To explore the feasibility of extraction and separation active principles of traditional Chinese medicine by supercritical CO2 extraction and molecular distillation.
目的：探讨超临界CO_2萃取技术和分子蒸馏联合应用对中草药有效成分进行提取和分离的可行性。
Veratryl alcohol was synthesized through the reduction of sodium borohydride from veratraldehyde with isopropanol as solvent, followed by solvent extraction and distillation under reduced pressure.
以藜芦醛为主要原料、异丙醇为溶剂，经硼氢化钠还原、溶剂萃取、减压精馏得到产物藜芦醇。
ConclusionCompared with steam distillation, the supercritical carbon dioxide extraction showed many advantages, such as short extraction time and high extraction yield.
结论与水蒸汽蒸馏法相比较，超临界萃取法具有萃取率高、耗时少等优点。
The essential oil from Vitis Vinifera L. seed was extracted by the simultaneous distillation extraction method.
采用同时蒸馏萃取的方法，对产于辽宁鞍山海城地区的巨峰葡萄籽的挥发油进行了提取。
The separation of intermediate using distillation under vacuum was replaced by extraction method. It was convenient and reliable.
用萃取法代替减压蒸馏法分离中间物方便、可靠。
The main flavor compounds in different maturity tobacco were isolated by simultaneous distillation and extraction (SDE), and then were quantitatively analyzed by capillary gas chromatography.
利用同时蒸馏萃取装置提取不同成熟度烟叶样品的挥发性香味成分，经毛细管气相色谱法对烟叶中主要香味成分变化进行了定性定量分析。
There are solvent extraction, ion exchange, vacuum melting, vacuum distillation or sublimation, electro migration and regional melting, etc.
主要有溶剂萃取、离子交换、真空熔融、真空蒸馏或升华、电迁移以及区域熔炼等。
Support, delivery and compositive distillation technique was first used to complete the extraction, separation and concentration of trace components.
探索一种新型的样品前处理装置，首次运用载体、携带体和综合蒸馏技术完成了待测样品中微量成分的提取分离和富集。
A triple effect evaporation intermittent distillation process is used to recover caprolactam in the extraction wastewater from nylon 6 production.
采用三效蒸发-间歇蒸馏技术，从锦纶6生产装置的萃取废水中回收己内酰胺。
Oil extraction from camphor tree seeds including green seeds and purple seeds by both extraction and distillation was discussed in this article.
实验结果表明，樟树青籽提取效果优于樟树紫籽；樟树籽提取樟油有较好的开发利用价。
Based on the atmospheric residue TBP data Obtained by TBP distillation data of crude and supercritical extraction method, a method obtaining the full range distillation TIP data were developed.
根据原油的实沸点(TBP)蒸馏数据和超临界萃取分馏方法得到的常压渣油t BP蒸馏数据，开发了获得全馏程TBP蒸馏数据的方法。
In our preparation, the process was improved. It is extraction instead of distillation with steam. Yield is 88.6%.
我们对此制备过程进行了改进，用萃取法代替水蒸汽蒸馏，产率达88.6%。
Results Water distillation method was good for the extraction of essential oil.
结果水蒸气蒸馏法更有利于白术挥发油的提取；
The volatile oil from Dictamnus dasycarpus Turcz was extracted by simultaneous distillation and extraction(SED), then separated and analyzed by GC-MS.
采用同时蒸馏萃取法提取白鲜皮中的挥发油，通过GC-MS对其化学成分进行分析。
The inhibitory effect of ginger extract on microorganisms was studied with different methods, which were hydraulic extraction, ethanol extraction, ultrasonic extraction and vapor distillation.
以生姜为材料，研究不同提取方式包括水浴加热浸提法、醇提取法、超声波浸提法和水蒸气蒸馏法对微生物的抑制作用。
By the method of water vapor distillation and extraction of refined vegetable oil, the garlic essential oil was prepared.
采用水蒸气蒸馏方法提取大蒜精油，并用精炼植物油萃取收集。
The invention realizes the fully exertion of effective ingredients because it uses different methods such as frying, alcohol extraction and distillation to different groups;
本发明组合物制备时对不同组份采用煎煮、乙醇提取、蒸馏方法，达到有效成分的充分发挥；
The volatile components were extracted from leaves of Indocalamus latifolius by simultaneous distillation and extraction, and analyzed by gas chromatography-mass spectrum (GC-MS).
采用同时蒸馏萃取装置提取箬竹叶的挥发性成分，然后经气相色谱-质谱联用技术对挥发性成分进行分离鉴定。
Result: the primary factor which influenced the extraction rate was grinding degree, then it was time of distillation, solid-liquid ratio and soaking time.
结果：影响挥发油得率的主要因素为粉碎度，其次为蒸馏时间和料液比，最后为浸泡时间。
The results indicated that the steam distillation-extraction was a better method for extracting aroma components from apricot fruit.
结果表明：水蒸气蒸馏萃取法能较好地提取杏果实香气成分。
Tongue twister is the number of people on behalf of the creation, extraction, distillation of the form, it can be said that the collective wisdom of the masses.
绕口令是多少代人创作、提炼、升华而成的，可以说是群众集体智慧的结晶。
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