试探了一种以水为反应介质合成苯丁烯酮的新方法。
A new method for the synthesis of benzylidene acetone with near critical water as reaction media was developed.
综述了离子液体作为反应介质在各类有机反应中的应用。
The application of ionic liquids as reaction media in organic reactions were reviewed.
反应介质工程、底物分子工程、酶分子修饰和定向进化。
This review emphasizes some important aspects for the control of lipase enantioselectivity: medium engineering, substrate engineering, modification of enzyme and directed evolution.
离子液体作为一种环保的反应介质,已经受到广泛的关注。
Recently, much attention has been focused on the use of ionic liquids as environmentally benign reaction media.
以乙醇为反应介质,采用溶解沉淀法制备了高脱乙酰壳聚糖。
A dissolving precipitated method has been developed for the preparation of chitosan having a high degree of deacetylation in the presence of ethyl alcohol.
应尽量避免酸碱介质交替使用(除中和反应介质),以免缩短寿命。
Should try to avoid acid-base media used interchangeably (except in and reaction medium) in order to avoid shortening life expectancy.
反应介质的性质能对有机大分子添加剂的诱导作用产生一定的影响。
Properties of the reaction medium may be able to affect the function of organic macromolecular additives to some extent.
因此,在DMP的氧化聚合中使用水作为反应介质是一个很重要的进展。
Therefore, the oxidative polymerization of DMP to form PPO using water as the reaction medium would be of significance.
选择与环境友好的“洁净”的反应介质是绿色化学研究的重要组成部分。
Choosing an environmentally benignant cleaning reaction solvent is an important part of Green Chemistry research.
讨论了不同的反应介质、催化剂、反应温度和反应时间对产物收率的影响。
The effects of solvent, catalyst, reaction time and reaction temperature on the yield of the product were investigated, and the synthetic reaction conditions were optimized.
综述了离子液体作为潜在的反应介质应用于脂肪酶催化高产生物柴油的前景。
The application of ionic liquids as reaction medium for lipase-catalyzed biodiesel synthesis with high yield would be a highly potential possibility.
异戊酰- L -肉碱的酶催化合成需要选择疏水、极性的溶剂作为反应介质。
To improve significantly the biosynthesis of isovaleryl-L-carnitine catalyzed by lipase needs to select an efficient and suitable reaction medium that is not only polar but also hydrophobic.
以正丁醇-盐酸为铁盐催化法的反应介质,测定了葡萄籽超微粉中的原花青素含量。
The proanthocyanidin content in the ultrafine powder of grape seed was determined inn-butanol-HCl reaction medium.
无须外加反应介质,从而避免了其它杂质的引入;而且操作过程简单,生产成本低。
Adding no reaction medium avoids the introduction of the other impurity, and the operation process is simple and low in cost.
本发明涉及一种丙烯酸及其盐在仅由水构成的反应介质中的可控自由基聚合反应方法。
The invention relates to a method for the controlled radical polymerisation of acrylic acid and the salts thereof in a reaction medium consisting only of water.
水热合成刚玉反应时,合适矿化剂的引入能改变反应介质的酸碱度,并可加快反应速度。
The introduction of proper mineralizers into the hydrothermal reaction process can change the alkalinity acidity of reaction media and speed up the reaction process.
离子液体是室温下表现为液体的离子化合物,近年来被开发成为一种新型绿色化学反应介质。
Ionic liquid is a kind of liquid ionic compounds at room temperature. It was developed as a new green reaction medium.
反应介质稳定与否,直接影响反应结晶的好坏,进而影响过滤操作及磷得率等技术经济指标。
The steadiness of reaction takes direct influence on the cry stalization of gypsum, and then on a few technical and economic indices as filtration and P recovery rate.
本发明的方法操作方便,原料廉价,以廉价的水为聚合反应介质,使碳材料和碳化钨原位复合。
The method has simple operation and cheap raw materials and USES cheap water as a polymerization medium to composite carbon materials and the tungsten carbide in situ.
以反应介质和主催化元素为线索,对双氧水为氧源的烯烃环氧化反应的最新研究进展进行了综述。
Based on the reaction medium and the elements in the catalysts, the recent progresses of epoxidation of alkenes with hydrogen peroxide have been reviewed.
实验结果显示疏水性溶剂对于酵素反应活性和镜像选择性有较大影响,而异辛烷为最好的反应介质。
The results show that the hydrophobicity of reaction medium has great impact on the activity and enantioselectivity of lipases, and isooctane was the best reaction medium.
作为一种环境友好的化学工艺过程,以超(近)临界水作有机合成反应介质越来越受到人们的关注。
As an environmentally benign chemical process, using near-critical or supercritical water as synthetic organic reaction medium has received increased attention.
介绍了以甲醛、丙醛为原料,水为反应介质,碱催化进行交叉康尼扎罗反应制备三羟甲基乙烷的方法。
A method of preparing trimethylolethane from formaldehyde and propionic aldehyde in water was introduced in the presence of the base through cross Cannizzero reaction.
后者以乙醇为反应介质和85%(质量分数)水合肼反应生成邻氯苯甲酰肼,反应总产率37.8%。
The obtained product was further reacted with 85%-hydrazine hydrate in ethanol to form o-chlorobenzoyl hydrazine. The total yield was 37.8%.
实验利用粉煤灰和矿化垃圾两种废物材料作为反应屏障的反应介质用于修复受渗滤液污染的地下水环境。
Fly ash and mineralized refuse as two kinds of waste were used in reactive barrier in order to treat polluted groundwater which was contaminated by leachate.
结果表明,冷却介质流量越大,反应介质温度上升越缓慢,达到温度平衡所需时间越短,温度增量越小。
The bigger the coolant flow is, the more slowly the reactant temperature rises and the shorter the temperature balance time is and the smaller the temperature increment is.
结果表明,冷却介质流量越大,反应介质温度上升越缓慢,达到温度平衡所需时间越短,温度增量越小。
The bigger the coolant flow is, the more slowly the reactant temperature rises and the shorter the temperature balance time is and the smaller the temperature increment is.
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