溶剂萃取

• Bright stock refined ， high viscosity lubricating oil usually made from residual stocks by suitable treatment ， such asa combination of acid treatment or solvent extraction with dewaxing or clay finishing
  光亮油通常由渣油经加工处理而制成的精炼、高粘度微个个润滑油。加工处理的方式包括：酸处理(或溶剂萃取)与脱蜡(或粘土精制)相结合。
• The concentration of sulfur compound was the highest in steam distilled onion oil while it was lower in the extract of hexane and alcohol ( at 25 ) : there was no significance difference between solvent extracts
  在含硫化合物浓度上，水蒸汽蒸馏得到的洋葱精油明显高于正己烷或乙醇萃取得到的油树脂，而不同溶剂萃取得到的油树脂含硫量相差不多。
• Methods the antioxidant of 75 % ethanolic extract and organic solvent extracts , water extracts and polysaccharids from acanthus ilicifolins l . was detected by flow - injection chemiluminescence , to evaluate the ability of scavenge h2o2
  方法采用流动注射化学发光法，研究该植物75 %乙醇提取物及其有机溶剂萃取分离部分、水提取物及多糖对过氧化氢( h2o2 )的清除作用。
• With the yield of concentration of sulfur compound as the evaluation index , the contrast between onion essential oil and onion oleoresin from dried onion powder by steam distillation , solvent extraction and soxhlet method was studied
  摘要以洋葱粉为研究对象，以含硫化合物浓度为评价指标，采用水蒸汽蒸馏、溶剂萃取法和索氏提取法进行洋葱精油与油树脂的比较研究。
• Results : the extraction methods of traditional chinese medicine pigment is introduced , the characteristics of every kind of progress such as solvent extraction , supercritical co2 extraction , microwave radiation extraction , enzymatic extractionand ultrasonic extraction technology were discussed
  结果：介绍了中药色素的提取方法，讨论了溶剂萃取法、超临界co2萃取法、微波辐射提取法、酶法、超声提取法的特点。
• The air flotation method of wax recovery commonly used in the actual mechanized wax printing mills was compared with the methods we used in our labs , such as hot water dewaxing , org . solvent extn . , aq . surfactant recovery and dry dewaxing
  摘要将目前机械化蜡染厂采用的气浮回收蜡和我们实验室使用的热水脱蜡法、有机溶剂萃取回收法、水基表面活性剂乳液回收法及干法除蜡等方法比较，结果表明：热水脱蜡法是最适合机械化蜡染厂进行蜡的回收。
• The recent research and application of at home and abroad about modem separation technologies , for example solvent extraction process , membrane separation technology , salt - induced phase separation processes , macroporous rosin adsorption process and ion exchange method in erythromycin extraction are reviewed in detail . besides , the foreground of these modem separation technologies was discussed
  综述了近年来国内外现代分离技术溶剂萃取法、膜分离技术、盐析沉淀法、大孔树脂吸附法及离子交换技术在红霉素分离提取领域的研究应用进展,并对这些现代分离技术的发展前景做了简要探讨。
• The pretreatment of food samples for determination of organochlorine pesticides residues were described in this article , including several new technology which development during recent years , for example : supercritical fluid extraction , accelerated solvent extraction and solid - phase microextraction , these methods have reduced the time and solvent needed for sample extraction
  摘要综述了近十年来国内外对于食品中有机氯类农药分析的前处理技术，其中包括了近几年出现的一些新技术，如：超临界流体萃取、加速溶剂萃取和固相微萃取等，这些新技术不但缩短了样品的前处理时间并且减少了有机溶剂的用量。
• In addition , the extractive distillation process with mixed solvents have a better performance and a wider use compared with that with single solvent in the same condition , and it can not only overcome conflict of single solvent ' s selectivity and solubility , but also not increase the complexity of original technology
  另外，混合溶剂萃取精馏过程与简单溶剂萃取精馏过程相比，克服了简单萃取剂自身选择性与溶解性之间的矛盾，提升了萃取精馏工艺的分离效果及使用范围，并且没有增加原有工艺过程的复杂性。