查询词典 optimum conditions

The results showed that new-type solid ferric potassium alum was a good catalyst for the synthesis of ethyl decanoate and the optimum conditions were as follows: molar ratio of acid to alcohol was 1:2, the use level of catalyst was 0.6g/0.05 mol capric acid, water-taking reagent benzene was 15 mL, reaction time was 2.5 h and the yield of ethyl decanoate could reach 98%.

结果表明，新型固体酸铁钾矾是合成葵酸乙酯的良好催化剂，在酸醇物质的量比为1：2，催化剂用量为0.69（0.05 mol癸酸），带水剂苯为15mL，反应时间为2.5h的条件下，癸酸乙酯的酯化率可达98%。

Under the above optimum conditions, other trimethylolpropane fatty acid esters, such as trimethylolpropane lauric acid ester, trimethylolpropane myristic acid ester, trimethylolpropane capric acid ester and trimethylolpropane octanoic acid ester were synthesized, and their esterification rates were 80.97%, 87.03%, 80.73% and 81.24%, respectively.

在上述的最优条件下，分别合成三羟甲基丙烷月桂酸酯、三羟甲基丙烷豆蔻酸酯、三羟甲基丙烷癸酸酯、三羟甲基丙烷辛酸酯，其酯化率分别为80.97%、87.03%、80.73%和81.24%。

Under optimum conditions in the accumulation of capsaicin extraction rate can be about 96%.

在此优化条件下辣椒素的累积提取率均可达96%左右。

The hydrolysis yield of bleached pulp was lower than that of unbleached pulp under similar optimum conditions. Cellobiose concentration decreased during hydrolysis from 7.95 to 2.44g/L and from 6.59 to 3.11g/L at 6h and 72h for unbleached and bleached pulp, respectively.

水解产生的纤维二糖的质量浓度随反应进行逐渐降低，其中未漂浆的纤维二糖质量浓度由6h时的7.95g/L降到了72h时的2.44g/L，漂白浆的纤维二糖质量浓度由6h时的6.59g/L降到了72h时的

The optimum conditions were evaluated basing on the chelation rate and yield of amino acid chelates.

正交试验表明，螯合的最佳工艺为：反应体系pH为11，微波功率为342W，螯合时间为6min，氨基酸与硫酸铜配位比为2：1。

Under optimum conditions, the yield of nitration of chlorobenzene was 70%, and para-selectivity was 85%.

研究表明，在最佳反应条件下，氯苯硝化反应得率达到70%，对位选择性为85%。

The optimum conditions are 0.2 mol chlorobenzene, and 0.7 g catalyst, and 0.07 mol glycine, and 0.08 mol nitric acid, and reaction time of 3 hours, and reaction temperature of 45℃.

最宜工艺条件：氯苯为0.2 mol，催化剂为0.7 g，氨基乙酸为0.07 mol，硝酸为0.08 mol，反应温度为45℃，反应时间为3 h。

The optimum conditions of the process for obtaining high- purity and recovery citral were determined by analyzing the relative content of citral with gas chromatography- mass spectrometry system.

用GC-MS联用仪对分离物中柠檬醛相对百分含量进行分析，实验表明，获得高纯度、高收率的柠檬醛的分子蒸馏的适宜工艺条件为：在蒸馏压力0.15Pa、蒸馏温度45℃、物料流量1滴/s、刮膜蒸馏转速370￣390r/min、冷却水温度4￣5℃。

The optimum conditions of preparation of inclusive compound were the proportion of 1∶6 (volatile oil and βCD),3 hours of inclusion and ordinary temperature.

选出的提取和包合条件达到了挥发油收得率最高和包合收率较高，并且包合效果好的目的。

The results showed that the optimum conditions for pretreatment of coking wastewater were 6 g activated carbon per liter, 30 ℃, pH=9 and reaction for 20 min, under which the removal efficiency of organic pollutants are more than 70%. Among the 56 kinds of organic compounds, 45 kinds such as dolichoalkanes, polynucleation aromatic series, azacyclo compounds could be removed, and the removal ratios of amidobenzene, hydroxybenzene, indoleacetic, acid-2-methyl-phenyl-ester are 63.5%, 42.6%, 88.1%, 28.1% respectively, while cresol and xylenol are more than 70% and 85%.

结果表明，在最佳反应条件即活性炭投加量6 g·L-1，温度30 ℃，pH＝9，反应时间20 min的情况下处理废水有机物去除率大于70％，原水中检测出的56种有机物中的45种被去除，如长链烷烃、多环芳香族及氮杂环化合物等的浓度降至检测限以下，剩余的11种有机物中苯胺、苯酚、吲哚、乙酸-2-甲基苯酯的去除率分别达到63.5％、42.6％、88.1％、28.1％，甲苯酚和二甲苯酚(5种)去除率在70％和85％以上。

They weren't aggressive, but I yelled and threw a rock in their direction to get them off the trail and away from me, just in case.

他们没有侵略性，但我大喊，并在他们的方向扔石头让他们过的线索，远离我，以防万一。

In slot 2 in your bag put wrapping paper, quantity does not matter in this case.

在你的书包里槽2把包装纸、数量无关紧要。