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Almost 100% selectivity to cyclohexene could be obtained when the molar ratio of acetic acid to cyclohexane was 12.9∶1 at 450 ℃, the conversion of cyclohexane was 6.9%.

反应温度为450 ℃,醋酸与环烷的摩尔比为12.9∶1时,环烷的转化率为6.9%,环烯的选择性为100%。

Cyclohexane with Mn as a catalyst in Trial 3 gave a total conversion of cyclohexane of 73% and 28.8% of which were oxygenates which contained 15.2% of dimethyl succinate, 19.6% of dimethyl glutarate and 65.2% of dimethyl adipate.

烷锰作为催化剂在审判3了总转化环烷的73 %和28.8 %,其中含氧化合物其中载有15.2 %的二甲基丁二酸, 19.6 %的二甲基戊二和65.2 %的二二酸。

In this paper, a series of low cross-linking polyurethanes are synthesized using polycaprolacton or polybutamethylene adipate or polyethylene-propylene adipate, MDI and glycerin. Their mechanical, thermal and dynamical properties and shape memory function are studied.

采用聚二酸乙丙二醇酯、聚二酸丁二醇酯、聚内酯和 4,4'-二苯基甲烷二异氰酸酯为原料,以丙三醇为交联剂合成了一系列低度交联的聚氨酯,讨论了组成、配比等对性能的影响,比较了它们和线型聚氨酯在性能上的差别。

Using mordern physical chemistry techniques (such as XRD、 TG-DTA、 IR、 XPS and 〓Xe-NMR)、 chemical adsorption techniques (NH〓-TPD、 H〓-TPD、 TPO、 TPR etc.) and pulse flow microreaction of n-hexane、 methylcyclopentene and n-hexane containing 0.2ppm thiophene, we studied mainly the following three points:(1). the changes occured during the calcination pretreatment of Pt ammine complex supported on β and L zeolites;(2). the effect of structure and acidity-basicity of zeolite on the dispersion and electron state of Pt particles; and (3). the influence of second metal component on the reactivity of nhexane aromatization and sulphur-resistance of Pt/L zeolite catalyst. Several interesting and valuable results are obtained and summerized as follows

本论文运用各种近代物理表征方法(XRD、BET、TG-DTA、IR、XPS和〓Xe-NMR)、化学吸附技术(NH〓-TPD、H〓-TPD、TPO、TPR等)和正烷、甲基环戊烷及含噻吩正烷的脉冲微反等方法,着重研究了(1)载Pt的β和L沸石在分解预处理过程中发生的变化;(2)沸石载体结构及酸碱性对Pt粒子分散及电子状态的影响;(3)第二金属组份对载Pt沸石催化剂上正烷芳构化及抗硫性能的影响等,得到了某些有意义的结果。

Calcium carbide production, dissolved acetylene, self-diol, has been acetylenic diol, a hybroxybutyric alcohol, methyl amyl alcohol, without the others methyl diol and other products.

主要生产碳化钙、溶解乙炔、二醇、炔二醇、甲基丁炔醇、甲基戊炔醇、不带甲基的二醇等产品。

The relationship between glycosidic precursors and its aroma components was studied. The results showed: The dominant aroma constituents in aroma oil of jasmine tea include benzyl acetate, linalool, methyl antyranilate, cis-3-hexenyl benzoate, benzyl alcohol, indole, farnisene, methyl benzoate, methyl salicylate, geraniol, cis-3-hexenyl-acetate etc.; and the higher the concentration of these components is, the higher the quality of jasmine tea is.

结果表明:茉莉花茶香精油中,含量较高的有乙酸苄酯、芳樟醇、邻氨基苯甲酸甲酯、苯甲酸顺-3-烯酯、苯甲醇、吲哚、法尼烯、苯甲酸甲酯、顺-3-烯酯、水杨酸甲酯、橙花叔醇、乙酸顺-3-烯酯、香叶醇;这些成分的含量随花茶品质的提高而增多;研究表明,花茶的高含量香气成分也是茉莉花中的主要赋香成分。

Thirty-two patients (M 14, F 18 , age 32 a ±s 8 a) in smectite group were sprayed 0.1-0.2 g of smectite on the ulcer surface, qid for 4 d; 34 patients (M 16, F 18, age 32 a±9 a) in chlorhe x idine group gargled with 2% of chlorhexidine solution, qid for 4 d; 36 patients (M 16, F 20, age 32 a±11 a ) in chlorhexidine plus smectite group gargled firs t with 2% of chlorhexidine solution, and then were sprayed 0.1-0.2 g of smectite.

蒙脱石组32例(男性14例,女性18例,年龄32 a±s 10 a),喷蒙脱石0.1~0.2 g于溃疡处,每日4次;氯定组34例(男性16例,女性18例,年龄32 a±9 a),用2%氯定液漱口,每日4次;蒙脱石加氯定组36例(男性16例,女性20例,年龄32 a±11 a),先用2%氯定液漱口,然后再喷蒙脱石0.1~0.2 g,每日4 次。3组疗程均为4 d。

This article utilized the result from my observation of a group of patients with personality disorder, revealing that this situation in Confucianism is related with the core of itself. So that this article will focus on the discussion about the goal of moral idealizing personality, the model of projective cognition and self-objective interpersonal relationship, an very strong sense of shame and obeying authority in Confucianism.

儒家思想中过分L调理性,贬低情感的&君子&&圣人&的理想人格的社N期待;&人人关系&将&&作为人关系中的一礡A缺乏对臚H承诺所致的&自我客体&式家庭人关系;&所不欲,勿施予人&&欲立而立人&&欲}而}人&的以&&为出Y簹认知方式;以及儒家&修治平&的奋斗目标、过分的埸P和权威崇拜均蕴含有明显的自恋趋向。

According to the results of the former study in our laboratory, trans-1, 2-cyclohexanediol is produced with a lot of acids and water, for extraction of trans-1, 2-cyclohexanediol from the solution, ethyl acetate and butyl acetate were used as extraction reagents, the solubility data of the trans-1, 2-cyclohexanediol in corresponding mixed solvents of some sorts of acetates and water are needed.

根据本实验室前期研究结果可知,反式-1,2-环二醇是在酸性和大量水存在的条件下得到的,为了把反式-1,2-环二醇从反应液中萃取出来,本工艺所采用的萃取剂是乙酸乙酯和乙酸丁酯,需要获得反式-1,2-环二醇在这些酯类与水混合溶剂中的溶解度数据,因而对反式-1,2-环二醇进行相关固液相平衡的研究是非常迫切和必要的。

The results indicated the ally1 carbon of cyclohexene was catalytically oxidized by molecular oxygen at atmospheric pressure in the presence of the polymer complex and a trace of HOAc at 70℃, which afforded corresponding alcohol, ketone and hydroperoxide acting as intermediate.

结果表明,70℃时,以微量醋酸为添加剂,在催化剂的催化作用下,以常压氧气氧化环烯,得到烯丙基位的氧化产物环烯醇、环烯酮和中间产物环烯过氧化氢。

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