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- This study gives the prime reference for the new technology of alcoholic fermentation with immobilized yeast coupling with extractive solvent. 为固定化酒精酵母乙醇发酵与溶剂萃取耦合新工艺的开发研究提供初步资料。
- The catalyst, the extractive solvent, the VLE data and the simulation results provide a foundation for the medium scale test and industrializations of DMM in this paper. 本文提出的催化剂和萃取剂,以及二元、三元和四元汽液平衡数据为DMM的制备及提纯提供了依据。
- Ethyl Acetate has been selected as extractive solvent and Methanol has been selected as crystallization solvent,Solane has been purified by using the two grades extractive crystallization equipment. 由于茄尼醇的粘度很大、熔点低,无法用传统的方法分离纯化,针对其分离难问题,本文提出采用乙酸乙酯为萃取溶剂,甲醇为结晶溶剂,利用两级萃取结晶装置分离提纯茄尼醇。
- RESULTS: The extraction rates was affected by extract solvent, extract times, Coccus- solvent ratio and extract temperature. 结果:乙醇浓度、提取次数、料液比和提取温度影响胭脂虫红酸提取效率。
- The intermediate was the extract of Radix Angelicae Sinensis and Rhizoma Corydalis using 80% ethanol as extracting solvent. 中间体是当归和元胡的80%25乙醇提取物,由于阿魏酸和延胡索乙素性质不同,无法在同一流动相条件下同时出峰,故分别以二者为指标峰建立2套指纹图谱。
- The n-pentane is one of good extraction solvents. 正戊烷是一种优良的浸出溶剂。
- The selectivity calculated shows that furfurol is an excellent extraction solvent for separating FCC slurry. 计算所得选择性表明糠醛是分离FCC油浆的有效溶剂。
- A new molecular design method is proposed in this paper, which is used for designing the optimal extractive solvents. 摘要本研究提出一种新的萃取溶剂分子设计策略,首先以溶剂选择性为标准预选官能团,缩小分子设计的范围;
- Ethanol was the best extraction solvent, and continuous reflux extraction was the most appropriate extraction method. 结果表明,乙醇为瑞香狼毒根的最佳提取溶剂,连续回流提取法为其最佳提取方法。
- The new method has been proved successful by two case studies in simulating molecular design of extractive solvents. 采用本设计的方法模拟计算了两个萃取溶剂设计实例,获得了令人满意的效果。
- The selection of extraction solvent and acidity of stripping agent, and the effect of interferencing ion were studied. 并对测定过程中有机萃取剂,反萃酸度的选择及干扰离子的影响进行了探讨。
- The results shows that extraction solvent is extremely important for carotenoid analysis of different materials a... 结果表明,材料的类型对于提取溶剂的选择极其重要,溶剂的选择不当,将造成类胡萝卜素提取得不完全。
- The extraction solvent of chemical extraction had pois on which could cause some pollution and toxicity. 化学萃取法的提取溶剂有毒,会造成一定的污染和毒害。
- Conclusion: The imperialine extraction efficiency is greatly affected by the extraction solvent. 5)的西贝素的提取效率最高。
- Selecting a more suitable extraction solvent is highlighted by oil technologists in each country. 因此,选择更适宜的浸出溶剂为各国油脂工作者所重视。
- BUTENEX is the most advanced extractive distillation techonology for n-butene and butane separation up to now,uses methyl ethyl ketone and N-formyl morpholine for extraction solvent. 采用甲乙酮和氮甲酰吗啉混合物做萃取剂分离正丁烯和丁烷的技术是目前最先进的技术。
- Therefore, the ethyl acetate is the optimal extracting solvent to distill the active compounds from Helianthus tuberosus leaves. 4. 菊芋叶片乙酸乙酯提取物对四种病原真菌抑制效果最为显著,因此乙酸乙酯是菊芋叶片中抑菌活性物质的最佳提取溶剂。
- It was researched that the extractor, extraction solvent, chromatography material had influence upon yield of total flavonids. 考察了不同的回流装置、提取溶剂和层析材料对黄酮类化合物提取率的影响。
- Capsaicin is extracted from the powder of capsicum with microwave assisted, and acetic acid is used as the extraction solvent. 采用微波辅助提取方法,以乙酸为提取剂从辣椒粉中提取辣椒素。
- According to the total content and DI of anthocyanin in lychee, the state of anthocyanin degradation in extraction solvent is obviously observed. 荔枝果皮总花色苷及花色苷降解指数可以很好地反映出提取液中花色苷的降解情况。