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The predispersed solvent extraction of lincomycin from fermentation broth containing mycelium taking butyl acetate as extractant has been studied.

以醋酸丁酯为萃取溶剂,采用预分散溶剂萃取法从含菌丝发酵液中直接萃取林可霉素。

With the method of the invention, the extraction rate of the linseed oil is between 70.74 and 99.36 percent, the extraction time is between 30 and 180 minutes, the dosage of the solvent is 4 to 20L per 1kg linseeds, the extraction temperature is between 20 and 60 DEG C.

采用本发明的方法,亚麻油的提取率为70.74%-99.36%、提取时间为30-180分钟、溶剂的用量为4-20L溶剂/1kg亚麻籽、提取温度为20-60℃。

Study on synthesis and properties of low-melting and quick-crystallizing polyester hot-melt adhesive

介绍了常温溶剂型、加热溶剂型和热熔型道路标线涂料的特点及其技术进展。

Have addressed this problem to suggest possible strategies for utilization of the mundane and the unique aspects of ILs for novel crystallization including high- and low-melting solids using thermal shifts,"solvothermal" techniques, slow diffusion, electrocrystallization, and use of a cosolvent.

针对这个问题,提出可行的策略运用方面的独特世俗与输入新型结晶包括高、低使用固体熔化热之后,&溶剂&技术扩散慢、电、一、使用溶剂

The influence of external environment, pH and temperature on MAA yeast was as same as baker's yeast.

通过在培养基中逐渐添加有机溶剂驯育得到能够耐受较高有机溶剂浓度的MAA酵母。

Maize yellow pigment was extracted from corn gluten taking the rate of extraction as index,and according to the nature of the maize yellow pigment ,the experiment research of the mixed solvent extraction had been made in the basic of single solvent extraction experiment.

以玉米蛋白粉为原料,玉米黄色素的提取率为指标,根据玉米黄色素的性质,在单一溶剂提取实验的基础上进行了混合溶剂的提取实验研究。

To synthesize aryl pyrimidines by taking benzene, methyl benzene ,acetic ether,1,2-dichloroethane as solvent,the yield and purity of the product are high by taking methyl benzene as solvent.

分别选用苯、甲苯、乙酸乙酯、二氯乙烷作为溶剂合成桂皮酰哌啶,结果表明甲苯作为溶剂时产品纯度高,收率高,可用于大规模生产。

Because a part of hydroxyl group in methyl cellulose were substituted by trimethylsilyl group , the product could be dissolved in amounts of common organic solvents, such as chloroform, xylene and so on.

通过甲基纤维素与六甲基二硅亚胺的反应,成功地实现了对水溶性物质甲基纤维素醚三甲基硅化的改性;红外光谱验证了反应的发生,核磁共振氢谱确定了三甲基硅甲基纤维素的取代度;纤维素醚上的部分羟基被三甲基硅化后取得了在普通溶剂中的良好的溶解性,且随着取代度的增加,在非极性溶剂中的溶解性逐渐变好;通过热失重实验,对其热稳定性进行了测试。

We obtained copper sulfides nanomaterials with different phases by a mix-solvothermal route, and discussed the role of the mixed solvents. We also prepared CuS nanoplatelets by a hydrothermal process at mild temperature, and discussed their optical properties and the formation mechanism.

我们利用混合溶剂热法合成了不同矿相的纳米铜硫化合物,并讨论了混合溶剂的作用;采用简单的添加辅助剂的水热法制备了六边形纳米硫化铜,表征了材料的光学性能,并探讨了硫化铜纳米形貌的形成机理。

After peltate yam is water washed, crushed, fermented and acid hydrolyxed, the solid matter and acid water solution are separated via centrifugation, the solid matter is extracted with organic solvent to make saponin extracted into organic phase, the organic phase is back extracted to eliminate other components, the organic solvent is distillation recovered for reuse and precipitation separated saponin is stoved to obtain product.

黄姜经水洗净、粉碎、发酵和加酸水解后,离心分离固体物和酸性水溶液,用一种有机溶剂萃取固体物,皂素被萃入有机相中,经返萃取去除其它成分后,将有机溶剂蒸馏回收,重用,沉淀析出的即为皂素,经烘干即得产品。

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