查询词典 optimum conditions

The optimum reaction conditions of the synthesis of isoamyl acetate with Nafion NR50 resin membrane as catalyst were studied.

以全氟磺酸树脂膜为催化剂得到冰乙酸和异戊醇反应合成乙酸异戊酣适宜的反应条件。

ResultsThe optimum synthetic conditions were 2 g cinnamic acid,microwave power was 600 W,reaction temperature was 115℃,reaction time was 14 min,mass percent of macroporous resin was 30%,the molar ratio of cinnamic acid to isobutyl alcohol was 1:7, and the yield of the new process was 89.3%.

结果肉桂酸2 g，酸醇摩尔比1∶7，催化剂用量30%，微波功率600 W，微波温度115℃，微波时间14 min，转化率达89.3%。

Tests of FCC naphtha upgrading were conducted under such optimum reaction conditions (with a reaction temperature of 450℃), as compared with the untreated naphtha the olefin content of the treated naphtha decreased from 40.74% to 25.80%, the contents of isoparaffin and aromatics increased significantly, the computed octane number was 5.48 unit higher, yet the naphtha yield dropped 14.25 percentage points and the LPG yield increased 13.52 percentage points.

在450℃的优化条件下，催化裂化汽油改质后，烯烃质量分数由40.74%降至25.80%，异构烷烃和芳烃含量有较大幅度的增加，计算辛烷值RON提高了5.48个单位，汽油收率降低了14.25个百分点，液化气收率提高了13.52个百分点。

Then simulation and analysis are performed iteratively until optimum design and operation conditions are retrieved.

用校正过的数据再进行模拟、分析，直至最终实现设计和操作的最优化。

Total flavone was extracted from V. jatamansi Jones by ultrasonic method. The effects of four factors including ethanol concentration, solid-liquid ratio, soaking time and ultrasonic time on the yield of total flavone were investigated. The optimum technological conditions of total flavone exaction were confirmed through single factor test and the orthogonal test.

方法］利用超声法提取蜘蛛香中的总黄酮，考察了乙醇浓度、固液比、浸泡时间、超声时间4个因素对总黄酮得率的影响，通过单因素试验和正交试验确定了提取的最佳工艺条件。

The results showed high class PbSt2 could be synthesized by this new saponifying process.Compared with metathetical process,the reaction time shortened,liquid-solid ratio and moisture content of filter cake decreased.Powder product could be prepared by one-step process,and particle product by two-step process.For the optimum processing conditions,the reaction temperature and time for one-step process were 65℃ and 10min,the amount of alkali added in the first step was 50%;reaction temperture and time were 65℃ and 10min for the two-step process.

结果表明，用皂化法工艺可得到优等品PbSt2，较复分解工艺，反应时间缩短、液-固比降低、滤饼湿含量比减小，一步式工艺得到粉状产品，二步式工艺得到颗粒状产品；最佳工艺条件为：一步式工艺反应温度65℃，反应时间10min；二步式工艺第一步的加碱量比50%，反应温度65℃，反应时间10min。

Under the optimum operation conditions, the lowest quantity limit of mirabilite detected was 1200 μg/mL milk.

此外，还对在奶样中加入自来水、鲜奶精等干扰物对实验的影响做了测定。

The results showed that the optimum preparation conditions of moulding materials were as follows: moler ratio of melamine to formaldehyde 1:2.5, water turbidity of the reaction end point 1:3, content of cellulose 42%~48%, fineness of moulding powder 100~120 mesh.

结果表明，三聚氰胺与甲醛物质的量比为1：2.5、终点控制在水浊度1：3，纤维素用量42%~48%，干燥温度70℃，球磨至100~120目时，制得的模塑料性能良好，符合国家日用级产品相关标准。

The effective recovery new technologies,such as optimum roasting conditions and molybdic acid preparation,etc.

对焙烧最佳条件、钼酸及七钼酸铵制备等问题进行了详实阐述，新工艺具有显著的技术经济效果。

In the CMKGM preparation section,with the indicators of DS andη, the optimum laboratory conditions preparation of a certain molecular weight of the high DS of CMKGM: reaction time (5～6) h, the theory of the degree of substitution (2～3), the molar ratio of monochloroacetic acid to Sodium hydroxide (2:1～3:1),the reaction temperature (55～65)℃, liquid ratio (10:1～12:1)mL/g, containing enthanol (50～70)%.

CM(来源：5e60ABC论文网www.abclunwen.com)KGM制备工艺研究中，以取代度、表观粘度为指标，建立了制备一定摩尔质量的高DS的CMKGM的实验室制备条件：反应时间(5～6)h、理论取代度(2～3)、氢氧化钠与氯乙酸摩尔比(2：1～3：1)、反应温度(55～65)℃、液料比(10：1～12：1)mL/g、乙醇体积分数(50～70)%。

Plunder melds and run with this jewel!

掠夺melds和运行与此宝石！

My dream is to be a crazy growing tree and extend at the edge between the city and the forest.

此刻，也许正是在通往天国的路上，我体验着这白色的晕旋。