查询词典 methanolysis

This step produces a thiol ester. In the next step, methanolysis of the thiol ester is carried out in the presence of a basic catalyst.

该步骤产生硫羟酸酯，在下一步中，在碱性催化剂存在下进行硫羟酸酯的甲醇解。

Methods Using petroleum ether to extract crude fat from the Capparis spinosa fruit and identify separately with GC-MS method after methanolysis.

方法］用石油醚提取刺山柑果实中的粗脂肪，甲酯化后，用GC-MS法进行分离鉴定。

The process was methanolysis α-imino ether acid hydrogen chloride salt from methyl-cyanide.

研究了以乙腈为原料经α-亚氨基乙醚盐酸盐醇解制备原醋酸二乙酯的工艺方法，对醇解的投料比、反应时间及中和pH值等工艺条件进行了研究，得出较优惠的工艺条件。

Saturated fatty acids and high content steroids were found in the extracts of methanolysis products.

在盐酸甲醇解产物中，主要检测到系列饱和脂肪酸和高含量的甾醇成分。

Tert-amyl alcohol was used as a reaction medium for Novozym 435 lipase-catalyzed methanolysis of soybean oil for biodiesel production.

叔戊醇作为反应介质，固定化脂肪酶Novozym 435催化大豆油与甲醇的转酯反应制备生物柴油。

Firstly, the methanolysis of different oils by alkali-catalysis and lipase-catalysis werestudied.

首先，本文分别采用酶法和化学法对不同来源的油脂和甲醇转酯化反应进行了考察和优化，对不同催化剂催化生产生物柴油进行了对比。

The optimal reaction parameters of methanolysis of soybean oil by lipase-catalysis weredetermined as follows: 15wt% of lipase, 55℃of temperature, petroleum ether as solution,methanol was added by 6 times.

对酶法催化豆油和地沟油的对比没有显著差异，说明脂肪酶是催化游离脂肪酸含量高的油脂生产生物柴油的有效催化剂。

The alkaline methanolysis of 2 occurred in MeONa-MeOH solution, and gave the products with the inversion of configuration with PhO as a leaving group.

我们曾研究过个别硫代磷酞胺醋的酸性醇解反应'了，关于这类化合物的碱性醇解反应未见文献报道。

The optimal condition of the methanolysis transesterification was as follows: 50% enzyme based on oil weight;methanol/oil mole ratio 3∶1;shaking speed 150 r/min;added water content 5%;reacting at 50 ℃ for 12 h.

最佳工艺条件为：在正己烷的反应介质中，酶量50%，醇油摩尔比3∶1，反应温度50℃，转速150r/min，添加质量分数5%的水分，反应12 h后产物脂肪酸甲酯得率可达92.3%。

Finally, the FDA acknowledges that recycling of PET or PEN by methanolysis or glycolysis results in the production of monomers or oligomers that are sufficiently pure to produce finished polymers suitable for food-contact use.

最后，美国食品药品管理局承认，回收的PET或国际笔会的methanolysis或糖酵解成果在生产单体或低聚物有足够的纯制作完成聚合物适合食品接触使用。

The dissecting of samples in group2 were difficult. The root of pulmonary artery and ascending aorta failed to be unfolded because fibrous tissue was tough, right and left fibrous trigone were too firm to be solved by hand. Cardiac muscle fibers couldn't be stripped along myofibrillar trajectory since they were prone to break because of their friability.

组2的心脏解剖困难，表现为纤维组织坚韧，游离肺动脉非常困难；徒手无法松解左、右纤维三角，肺动脉和主动脉根部的游离非常困难；心肌纤维坚硬、质脆，解剖时容易断离成碎块，无法沿纤维走行方向剥离。

We have battled against the odds in a province that has become increasingly violent.

我们对在一个争夺日益激烈省的可能性。