Kazakhstan vacuum residuum ( VR) was evaluated detailedly by supercritical fluid extraction and fractionation ( SFEF). 利用超临界流体萃取分馏技术,对哈萨克斯坦减压渣油进行评价。
Abstract: using soy lecithin concentrates as raw material, through ethanol extraction of pc, fractionation of detoxin, vacuum concentration, deoil in acetone, absorbents decoloration, filtration, concentration, the soy lecithin rich in PC was obtained. 文摘:以浓缩大豆磷脂为原料,用乙醇萃取富集卵磷脂馏分,经分离去毒、真空浓缩、丙酮脱油、吸附脱色、过滤、浓缩,得到大豆卵磷脂。
Experiments have been conducted to produce heavy paving asphalts from Xinjiang vacuum residue mixed with RFCC slurry by supercritical fluid extraction and fractionation ( SFEF). 研究了采用超临界流体萃取技术(SFEF),以减压渣油和催化裂化油浆为原料,制备重交通道路沥青产品的可行性。
The computer closed loop control of the solvent extraction process for the fractionation of rare earths in multistage mixer-settlers of 10 liter mixer volume has been performed for five months. 在10升混合室容积的多级混合澄清槽萃取器上,实施了溶剂萃取稀土分组生产过程的计算机闭环控制。
Supercritical fluid extraction and fractionation ( SFEF) are used to separate Daqing and Liaohe decanted oils into a number of narrow fractions. 以大庆和辽河油浆为研究对象,采用超临界流体萃取分馏技术将其切割成窄馏分,分析了油浆窄馏分的性质及组成随收率变化的规律。
The result shows that the extraction plus fractionation technology is much better than the two others: the linoleic acid recovery rate is 92.18%, the physical and chemical characters of the products is better than that purified by urea adduction fraction. 通过实验发现,萃取+精馏的萃取分离效果最好。其中,亚油酸的收率可以达到92.18%,产品的理化指标要好于尿素包合产品的理化指标。
The recombinant gene yeast assay in combination with solid phase extraction of sample and three-step purified fractionation technique for pretreatment can rapidly and effectively screen out and quantitatively analyze the unknown estrogen-like matters in sample, and make evaluation on water treatment effect. 重组基因酵母检测技术结合水样的固相萃取、三步纯化分级前处理方法可以快速、有效地筛选和定量分析水样中未知类雌激素物质,并对水处理效果进行评价。
According to the features of aromatics extraction and fractionation unit as well as production problems, technical measures for engineering design of equipment and process piping were proposed as follows: ( 1) Inner floating roof tanks are suitable for feedstock and products intermediate storage; 根据芳烃抽提及分离装置的特点和生产中的问题,提出了在设备和工艺管线的设计中应采取的技术措施:原料及产品中间罐宜采用内浮顶罐密封;
Studies on the microsomal antigens of Schistosoma japonicum ⅱ. extraction, fractionation and chemical and immunological properties of microsomal antigens of adult worm 日本血吸虫微粒体抗原的研究&Ⅱ.成虫微粒体抗原的提取、分离及其化学和免疫学特性
Instrument of Supercritical Fluid Extraction and Fractionation Supervise System 多功能超临界流体萃取分馏仪监控系统的设计与实现
The method involves extraction of the mucose with butanol, fractionation with acetone and then ( NH4) 2SO4, DEAE-cellulose ion-exchange column chromatography and Sephadex-gel filtration. 主要包括用正丁醇提取,丙酮和硫酸铵分级,DEAE纤维素离子交换层析和Sephadex凝胶过滤。
The model can simplify and optimize theory design of rare earth multicomponent extraction, overcome the blindness of multi component system technology design when parameters change, and correspond to the practice of cascade fractionation extraction in essence. 该模型简化并优化了多组份稀土萃取的理论设计,克服了多组份体系各参量变化时进行工艺设计的盲目性,从本质上符合了串级分馏萃取体系的实际。
Technique of Supercritical Fluid Extraction-Fractionation for Gingerol 姜酚超临界流体萃取-精馏技术
Study on concentration natural V_E by different processes with supercritical CO_2 extraction and fractionation 超临界CO2萃取浓缩天然生育酚的不同工艺探讨
A Single-step extraction and two-step separation procedure was performed in the experiment, the extraction/ fractionation process evolution and its optimization were monitored by performing systematic GC analysis of the products. 实验中采用一只萃取釜/两只分离釜的串联操作方案,所得产品通过毛细管气相色谱柱进行分析。
This paper present the hardware design of multi-function instrument of supercritical fluid extraction and fractionation supervise system. and then program with VB 6.0 to realize it. 给出了多功能超临界流体萃取分馏仪监控系统的硬件设计方案和VB6.0环境下软件编程实现。
Application of Supercritical Fluids Extraction and Fractionation in Russian Residua Separation 超临界流体萃取分馏技术在俄罗斯渣油分离中的应用
The feasibility of regenerating the spent lube oils by Supercritical Fluid Extraction Fractionation ( SFEF) was studied with a light hydrocarbon as the solvent. It can separate the spent lube oils into 6 to 9 fractions and their properties were evaluated through physico-chemical analysis. 论述了用超临界流体萃取分馏技术再生废润滑油的可行性,该工艺选用轻烃为溶剂,将废油分馏成6~9个馏分,并对各馏分进行了物化性质评价。
A new fractionating method for heavy oil of petroleum by supercritical fluid extraction and fractionation 超临界流体萃取分馏法分离石油重质油
Experiment on Supercritical Carbon Dioxide Extraction& Fractionation of EPA and DHA 超临界CO2萃取精馏EPA与DHA的实验研究
Design of Aromatics Extraction and Fractionation Unit 芳烃抽提及分离装置的设计
Computer Closed Loop Control of Cascade Solvent Extraction Process for the Fractionation of Rare Earths ── A discussion on the mathematical simulation model for solvent extraction Process in mixer-settlers 计算机闭环控制串级萃取稀土分组过程的试验研究&兼论模拟混合澄清槽萃取过程的数学模型
The block copolymers PE b sPS and sPS b Poly ( S co E) were first obtained by extraction fractionation from the block copolymerization products. 通过萃取分离可得到嵌段共聚物PE-b-sPS和sPS-b-poly(S-co-E)。
Abstract: Gingerol is extracted from ginger by using different methods such as ethanol cycle extraction, supercritical fluid extraction ( SFE) and supercritical fluid extraction-fractionation ( SFEF). 分别用乙醇循环法、超临界流体萃取法、超临界流体萃取-精馏法从生姜中提取活性物质姜酚。
Through extraction the nitrogen compounds in 16 oil samples collected from the two reservoirs and carrying out the GC-MS analysis, the migration fractionation effect of neutral nitrogen compounds was investigated and the problem of oil and gas migration was discussed by the authors. 对这两个油藏的16个原油中含氮化合物进行了分离和GC-MS分析,研究了中性含氮化合物的运移分馏效应,探讨了油气运移问题。
TBs can be isolated and purified effectively with organic solvent extraction, ethanol precipitation and methanol fractionation one by one. 依次通过有机溶剂萃取,乙醇沉淀以及甲醇分级可以对茶褐素进行有效地分离以及纯化。