查询词典 cyclohexanone

The research progress in TS-1 synthesis, ammoximation of cyclohexanone and the integrated process of cyclohexanone oxime production are introduced.

介绍了TS-1分子筛的合成、TS-1分子筛催化的环己酮氨氧化及环己酮氨氧化与过氧化氢生产的集成。

Cyclohexanone yield of 85% and selectivity to cyclohexanone of nearly 100% were attained over the catalyst prepared under optimum condition.

在优化条件下制得的催化剂用於环己醇脱氢时，环己酮产品收率达85%，选择性近100%。

For the synthesis reaction of chalcone, cyclohexanone aldolization and biodiesel,γ-Al_2O_3-NaOH-Na solid superacid has a satisfactory catalytic activity. With hypnone and phenylaldehyde as raw material, amount of catalyst 7.5% wt% of material, mole ratio of hypnone and phenylaldehyde 1:1.1, reaction temperature 40℃, after 3 hours, the yield of chalcone can be up to 96.88%. With cyclohexanone as raw material, amount of catalyst 10% wt% of material, reaction temperature 190℃, after 3 hours, dimmer of cyclohexanone can be up to 85.66%.

将该固体超强碱催化剂应用于查尔酮、环己酮自缩合以及生物柴油的合成反应中，该改性固体超强碱催化剂表现出了良好的催化活性：以苯乙酮和苯甲醛为原料，反应温度为40℃，催化剂用量为反应物总质量的7.5％，苯甲醛与苯乙酮摩尔比为1：1.1，反应3h查尔酮产率可达96.88％；以环已酮为原料，催化剂用量为原料总质量的10％，反应温度为190℃，反应3h，二聚物的总收率可达85.66％；以动物油和甲醇为原料，醇油摩尔为9：1，催化剂用量为动物油质量的2％，反应温度为70℃，反应3h后，生物柴油的收率可达91.8％。

Under microwave irradiation ,cyclohexanone 1,2-propylene ketal was synthesized from cyclohexanone and 1,2-propanediol using HPW as catalyst.

在微波辐射下，以磷钨酸为催化剂，以环己酮和1，2-丙二醇为原料合成了环己酮1，2-丙二醇缩酮。

Silicasulfuric acid was used as the catalyst for synthesis of Cyclohexanone 1, 2-propylene ketal from cyclohexanone and 1, 2-propylene glycol. The effect of catalyst dosage, molar ratio and reflux time to reaction were investigated.

以磺化硅胶为催化剂，以环己酮和1，2-丙二醇为原料合成环己酮1，2-丙二醇缩酮，考察了催化剂的用量、原料配比和回流时间对反应的影响。

Cyclohexanone glycol ketal was synthesis from cyclohexanone and ethylene glycol in the presence of a late-model catalyst, which was prepared with fly ash as raw material. The catalysts were characterized by means of XRD, TG and FTIR.

以粉煤灰为原料制备了一种新型的固体酸催化剂，用X射线衍射、热分析和红外光谱等手段表征了催化剂的物化性能。

The optimum conditions are: molar ratio of glycol to cyclohexanone is 1.6:1, the quantity of catalyst is equal to 0.25% of feed stocks, and the reaction time is 40 mm. H3PW12O40/MCM-48 is an excellent catalyst for synthesizing cyclohexanone ethylene ketal and its yield can reach over 80.63%.

实验表明：H3PW12O40/MCM-48是合成环己酮乙二醇缩酮的良好催化剂，在n：n＝1：1.6，催化剂用量为反应物料总质量的0.25%，环己烷为带水剂，反应时间40min的优化条件下，环己酮乙二醇缩酮的收率可达80.63%。

The results showed that molar ratio of cyclohexanone to ethylene glycol was 1∶1.4, the amount of catalyst was 2% cyclohexanone, amount of cyclohexane was 10 mL, the reaction time 2 h, the yield of cyclohexanone ethylene ketal reached 99.6% under the optimum condition.

通过正交实验得出了最佳反应条件：n∶n=1∶1.4、催化剂用量为环己酮质量的2%、带水剂环己烷用量10.0 mL、反应时间2 h，缩酮产率可达99.6%。

Cyclohexanone ethylene ketal was synthesized from cyclohexanone and glycol in the presence of H3PW12O40/MCM-48. The factors influencing the synthesis of molar ratio of glycol to cyclohexanone, the quantity of catalyst and the reaction time were discussed and the best conditions were found out.

报道了以分子筛MCM-48负载磷钨酸(H3PW12O40/MCM-48)为催化剂，通过环己酮和乙二醇反应合成了环己嗣乙二醇缩酮，探讨了H3PW12O40/MCM-48对缩峒反应的催化活性，较系统地研究了酗醇物质的量比，催化剂用量，反应时间诸因素对产品收率的影响。

The principles and process of cyclohexanone oximation in hydroxylamine-cyclohexanone process were introduced. Influencing factors such as temperature, feed-in distribution of cyclohexanone, pH value of buffer solution and pulse speed were discussed in detail. After some improvement measures were put forward and applied according to these factors, the efficiency of oximation reaction increased.

介绍了羟胺-环己酮法中环己酮肟化反应的原理及工艺流程，讨论了反应温度、环己酮进料的分布、缓冲溶液的pH值、脉冲速度等因素对肟化反应效率的影响，针对各个影响因素提出了改进肟化反应条件的措施并应用于生产实践，提高了肟化反应效率。

On the other hand, the more important thing is because the urban housing is a kind of heterogeneity products.

另一方面，更重要的是由于城市住房是一种异质性产品。

Climate histogram is the fall that collects place measure calm value, cent serves as cross axle for a few equal interval, the area that the frequency that the value appears according to place is accumulated and becomes will be determined inside each interval, discharge the graph that rise with post, also be called histogram.

气候直方图是将所收集的降水量测定值，分为几个相等的区间作为横轴，并将各区间内所测定值依所出现的次数累积而成的面积，用柱子排起来的图形，也叫做柱状图。