While the adsorptions of 1-propanol and 1-Br-propane at 100℃ give rise to 1-propoxy species, which mainly converted to propanal at higher temperature. IR spectrum arising from the interaction of propene with the catalyst at 100 ℃ shows the IR bands of allyl alcoholate and isopropoxy species. As the temperature was increased to 150℃, the bands ascribable to the adsorbed acetone and acrolein were observed. Based on these results, it is suggested that isopropoxy species is one of the intermediates for SOP to acrolein over MoPO/SiO〓 catalyst.

2原位IR光譜實(shí)驗(yàn)結(jié)果表明：200℃時(shí)丙烷/O〓混合氣在催化劑表面吸附后的IR譜與同溫度下異丙醇吸附的IR譜相似欧美日韩第页，均檢測(cè)到吸附態(tài)丙酮物種和丙烯醛物種的IR譜峰欧美日韩xxxx；溴代異丙烷和異丙醇在催化劑表面吸附后均轉(zhuǎn)化為異丙氧基，異丙氧基主要轉(zhuǎn)化為丙烯和丙酮精品黄色在线观看，丙烯進(jìn)一步轉(zhuǎn)化為丙烯醛永久看日韩免费一级黄色视频；溴代正丙烷和正丙醇在催化劑表面吸附后均轉(zhuǎn)化為正丙氧基，正丙氧基主要轉(zhuǎn)化為丙醛色视频综合一区二区二区；丙烯在催化劑表面吸附后轉(zhuǎn)化為σ-氧烯丙基和異丙氧基欧美一级网页，升溫后σ-氧烯丙基轉(zhuǎn)化為丙烯醛而異丙氧基轉(zhuǎn)化為丙酮。

While the adsorptions of l-propanol and 1-Br-propane at 100 癈 give rise to 1-propoxy species, which mainly converted to propanal at higher temperature. IR spectrum arising from the interaction of propene with the catalyst at 100 癈 shows the IR bands of allyl alcoholate and isopropoxy species. As the temperature was increased to 150 癈, the bands ascribable to the adsorbed acetone and acrolein were observed. Based on these results, it is suggested that isopropoxy species is one of the intermediates for SOP to acrolein over MoPO/SiO2 catalyst.

原位IR光譜實(shí)驗(yàn)結(jié)果表明：200℃時(shí)丙烷／O_2混合氣在催化劑表面吸附后的IR譜與同溫度下異丙醇吸附的IR譜相似无码日韩啪啪片高潮喷水，均檢測(cè)到吸附態(tài)丙酮物種和丙烯醛物種的IR譜峰亚洲欧美激情小说；溴代異丙烷和異丙醇在催化劑表面吸附后均轉(zhuǎn)化為異丙氧基，異丙氧基主要轉(zhuǎn)化為丙烯和丙酮很鲁很鲁欧美，丙烯進(jìn)一步轉(zhuǎn)化為丙烯醛欧洲人成视频免费；溴代正丙烷和正丙醇在催化劑表面吸附后均轉(zhuǎn)化為正丙氧基，正丙氧基主要轉(zhuǎn)化為丙醛；丙烯在催化劑表面吸附后轉(zhuǎn)化為σ-氧烯丙基和異丙氧基日韩在线精品福利网页视频观看免费，升溫后σ-氧烯丙基轉(zhuǎn)化為丙烯醛而異丙氧基轉(zhuǎn)化為丙酮亚洲一级av无码中文毛片。

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.

在上述的最優(yōu)條件下，分別合成三羥甲基丙烷月桂酸酯直接免费观看的黄色网站、三羥甲基丙烷豆蔻酸酯涩涩毛片在线视频看看、三羥甲基丙烷癸酸酯、三羥甲基丙烷辛酸酯欧洲黄视频在线观看，其酯化率分別為80.97%、87.03%特级无码黄片、80.73%和81.24%中文字幕精品亚洲一区。

The present production situation and market prospects of the main epichlorohydrin downstream products,such as epoxy resin,synthetic glycerol, chlorohydrin rubber ,and so on,are described.

論述了環(huán)氧氯丙烷的主要下游產(chǎn)品環(huán)氧樹(shù)脂、合成甘油在线看黄色操人、氯醇橡膠等的生產(chǎn)現(xiàn)狀欧美日韩在线a视频在线观看、市場(chǎng)前景等，指出：我國(guó)氯堿行業(yè)應(yīng)該重視這些環(huán)氧氯丙烷下游精細(xì)化工產(chǎn)品的開(kāi)發(fā)欧美日本性爱轮奸网站，以促進(jìn)我國(guó)環(huán)氧氯丙烷的發(fā)展日韩精品在线播放欧美视频。

In this paper, initiator is dissolved in 1-bromopropane which is solvent. Then the propene and hydrogen bromide that can be dissolved in 1-bromopropane are inlet in l-bromopropane when initiator is decomposing. The reaction occurs in fluid phase and high-purity 1-bromopropane is synthesized by one step method. In this paper, the material HBr is synthesized with NaBr and sulfuric acid at the presence of hydrobromic acid.

本論文以1-溴丙烷為溶劑，將引發(fā)劑溶于其中又色又爽又黄的视频在线网站，加熱到引發(fā)劑開(kāi)始分解時(shí)再通入丙烯和HBr野狼av社区，使二者溶解于1-溴丙烷中，在液相中進(jìn)行反應(yīng)8090sex电影网，實(shí)現(xiàn)丙烯"一步法"合成高純1-溴丙烷利用NaBr與硫酸在氫溴酸存在下反應(yīng)制備HBr氣體亚洲欧美另类久久图片，以作為合成1-溴丙烷的原料。

PECH based PUs showed higher phase separation than that of PPG base PUs owing to that the -Cl groups in PECH reduced the flexibility of molecule chain and hindered the formation of hydrogen bonds between ether groups in soft segments and -NH groups in hard segments. As a result, PECH based PUs have lower free volume content, diffusion coefficient and equilibrium adsorption of CO〓, benzene and ethanol through them than through PPG based PUs.

聚環(huán)氧氯丙烷醚聚氨酯的氯基降低了鏈段柔性日韩午夜在线资源精品视频观看网址，妨礙了軟段中醚基與硬段中氨基的氫鍵作用特级特黄视频，導(dǎo)致其相分離程度較聚環(huán)氧丙烷醚聚氨酯大，并使CO〓日本高清com、苯和乙醇蒸汽在聚環(huán)氧氯丙烷醚聚氨酯中的滲透系數(shù)和擴(kuò)散系數(shù)較聚環(huán)氧丙烷醚聚氨酯小欧美视频,你懂的，而偏離費(fèi)克擴(kuò)散的程度大。

The optimum conditions were reaction temperature 120°C, reaction time 20h, mole ratio of 5-chloromethyl-2-oxazolidinone and sodium phenolate 1:1. 3,5-Dimethylphenol and epichlorohydrin in sodium hydroxide were condensated to give l,2-epoxy-3-phenoxy propane, then the reation of l,2-epoxy-3-phenoxypropane and the carbamate afforded oxazolidinone in the yields of 69.0%~76.0%. The side reaction had been avoided effectively by the uses of the excessive epichlorohydrin and mixed catalysts.

用3偷拍偷窥盗摄短视频专区，5-二甲基苯酚和環(huán)氧氯丙烷在氫氧化鈉存在下縮合生成苯氧基環(huán)氧丙烷天堂男人在线，然后和氨基甲酸酯反應(yīng)生成噁唑烷酮，采用過(guò)量環(huán)氧氯丙烷和使用混合催化劑黄色网站视频待中文字幕，有效的避免了副反應(yīng)的發(fā)生黄色片区，提高了噁唑烷酮的產(chǎn)率，產(chǎn)率69.0%～76.0%99久久久无码。

This dissertation is mainly focused on the reactivity of methylenecyclopropanes and comprises six parts. 1 The reactions of methylenecyclopropanes with phenylsulfenyl chloride, phenylselenyl chloride and diphenyl diselenide; 2 The coupling reactions of the ring-opening products derivated from methylenecyclopropanes; 3 The palladium-catalyzed ring-enlargement of mono-aryl group substituted methylenecyclopropanes to cyclobutenes. 4 The gold-catalyzed domino ring-opening and ring-closing hydroamination of methylenecyclopropanes with sulfonamides; 5 The Lewis acid-catalyzed reactions of mono-aryl group substituted methylenecyclopropanes with diethyl ketomalonate in the presence of water; 6 The iodobenzene diacetate mediated novel 1,3-dipolar cycloaddition of methylenecyclopropanes, vinylidenecyclopropanes, and methylenecyclobutane with phthalhydrazine.

本論文主要研究了亞甲基環(huán)丙烷類(lèi)化合物的一些化學(xué)反應(yīng)性能日韩一级大日韩女大片一级，共由以下六部分組成：1、亞甲基環(huán)丙烷類(lèi)化合物與苯硫氯、苯硒氯及二苯基二硒的反應(yīng)国产美女精品一级A片免费观看；2黄片在线不卡永久免费看、亞甲基環(huán)丙烷類(lèi)化合物開(kāi)環(huán)產(chǎn)物的偶聯(lián)反應(yīng)；3加勒比中文无码在线、單芳基取代的亞甲基環(huán)丙烷類(lèi)化合物在鈀催化劑作用下的擴(kuò)環(huán)反應(yīng)国内偷窥一区二区三区视频；4、金化合物催化磺酰胺對(duì)亞甲基環(huán)丙烷類(lèi)化合物的串聯(lián)開(kāi)環(huán)關(guān)環(huán)氨氫化反應(yīng)一区色色色；5A片中文在线免费、路易斯酸催化亞甲基環(huán)丙烷類(lèi)化合物與丙酮二羧酸二乙酯在有水存在下的反應(yīng)；691AV综合、醋酸碘苯促進(jìn)的亞甲基環(huán)丙烷類(lèi)化合物欧美性色精品视频二区、亞乙烯基環(huán)丙烷類(lèi)化合物及亞甲基環(huán)丁烷類(lèi)化合物與鄰苯二甲酰肼的新型1，3-偶極環(huán)加成反應(yīng)黑人Xxxxx高潮。

In this paper, initiator is dissolved in 1-bromopropane which is solvent. Then the propene and hydrogen bromide that can be dissolved in 1-bromopropane are inlet in l-bromopropane when initiator is decomposing. The reaction occurs in fluid phase and high-purity 1-bromopropane is synthesized by one step method. In this paper, the material HBr is synthesized with NaBr and sulfuric acid at the presence of hydrobromic acid.

本論文以1-溴丙烷為溶劑成年人在线看的视频，將引發(fā)劑溶于其中，加熱到引發(fā)劑開(kāi)始分解時(shí)再通入丙烯和HBr毛片毛片黄色毛片网址，使二者溶解于1-溴丙烷中99福利人在线国产，在液相中進(jìn)行反應(yīng)，實(shí)現(xiàn)丙烯&一步法&合成高純1-溴丙烷利用NaBr與硫酸在氫溴酸存在下反應(yīng)制備HBr氣體黄色免费网站欧美，以作為合成1-溴丙烷的原料色哟哟图片。

Its high-capacity and strong-acid-resistance were proved. In the acid condition, the adsorption efficiency to acide green 6B and direct fast yellow RL reached above 90%. Through the adsorption rate curve on adsorption behavior of the three dyes, they were all according with pseudo-secondary adsorption rate curve. The rate constant of adsorption increased with increasing temperature. Through the adsorption isotherm of the three dyes, acide green 6B and direct fast yellow RL were according with Langmuir equation, while disperse blue 56 was according with Freundlich equation. The adsorption behavior was an endothermic process. Entropy was increasing during the adsorption. So raising temperature was in favor of adsorption.

結(jié)果表明，甲醛環(huán)氧氯丙烷交聯(lián)殼聚糖對(duì)染料具有較強(qiáng)的吸附性能和耐酸性能国产精品无码毛片大全，在酸性條件下欧美黄色性爱视频网站，對(duì)酸性綠6B和直接耐曬黃RL的吸附效率達(dá)90％以上；擬合甲醛環(huán)氧氯丙烷交聯(lián)殼聚糖對(duì)三種染料的吸附速率曲線一级3AAA片，發(fā)現(xiàn)該吸附行為符合擬二級(jí)吸附速率曲線91AV天堂在线观看，其吸附速率常數(shù)隨溫度的升高而增大；通過(guò)測(cè)定不同溫度下甲醛環(huán)氧氯丙烷交聯(lián)殼聚糖吸附三種染料的吸附等溫線表明美女黄18岁以下禁看，甲醛環(huán)氧氯丙烷交聯(lián)殼聚糖對(duì)酸性綠6B和直接耐曬黃RL的吸附符合Langmuir方程影音先锋不卡成人资源在线观看，而對(duì)分散藍(lán)56的吸附符合Freundlich方程，甲醛環(huán)氧氯丙烷交聯(lián)殼聚糖對(duì)染料的吸附是一個(gè)吸熱過(guò)程北京免费毛片，吸附后體系熵增加中文字幕在线更新资源站，升溫有利于吸附。

cyclopropane：環(huán)丙烷

根據(jù)Rogstam[10]的研究指出,環(huán)丙烷(cyclopropane)在許多低溫的應(yīng)用領(lǐng)域,很有可能是相當(dāng)優(yōu)良的替代冷媒,未來(lái)的發(fā)展將取決于環(huán)丙烷的使用特性. 冷氣機(jī)則是另一項(xiàng)主要應(yīng)用電器,一般使用丙烷作為冷媒,例如瑞典有家冷氣制造廠從九十年代中期至今,

cyclopropane synthesis：環(huán)丙烷合成

cyclopousse | (東南亞的)腳踏或機(jī)動(dòng)的三輪車(chē) | cyclopropane synthesis | 環(huán)丙烷合成 | cyclopropane | 環(huán)丙烷

Cyclopropane carboxylic acid：環(huán)丙烷羧酸

環(huán)丙烷甲酰氯Cyclopropane carbonyl chloride364 | 環(huán)丙烷羧酸Cyclopropane carboxylic acid364 | 環(huán)己胺Cyclohexanamine365

Cyclopropane carbonyl chloride：環(huán)丙烷甲酰氯

環(huán)丙胺Cyclopropylamine364 | 環(huán)丙烷甲酰氯Cyclopropane carbonyl chloride364 | 環(huán)丙烷羧酸Cyclopropane carboxylic acid364

ECH：環(huán)氧氯丙烷

2007-2010年環(huán)氧氯丙烷(ECH)產(chǎn)業(yè),2007-2010年環(huán)氧氯丙烷工業(yè)生產(chǎn)技術(shù)發(fā)展現(xiàn)狀,2007-2010年環(huán)氧樹(shù)脂工業(yè)生產(chǎn)技術(shù)發(fā)展現(xiàn)狀,中國(guó)聚碳酸酯供應(yīng)需求及未來(lái)形勢(shì)預(yù)測(cè)第四章 環(huán)氧氯丙烷(ECH)產(chǎn)業(yè) 37圖表 28 環(huán)氧氯丙烷(ECH)兩種生產(chǎn)工藝技術(shù)優(yōu)

POR：環(huán)氧丙烷橡膠

(POR)行業(yè)下游介紹二wwwav在线观看、環(huán)氧丙烷橡膠(POR)行業(yè)下游發(fā)展?fàn)顩r分析三、環(huán)氧丙烷橡膠(POR)行業(yè)下游對(duì)環(huán)氧丙烷橡膠(POR)行業(yè)影響力分析第十二章 環(huán)氧丙烷橡膠(POR)重點(diǎn)企業(yè)發(fā)展分析第十三章 環(huán)氧丙烷橡膠(POR)行業(yè)投資策略分析第

propane：丙烷

丙烷-丙烷 (propane) 為一種沸點(diǎn)為 -43.7℉之氣體,可由天然氣或煉油氣中分出,供燃料及工業(yè)原料等用. 丁烷-丁烷 (butane) 為一種沸點(diǎn)為 -32℉之氣體,亦可由天然氣或煉油氣中分出,供燃料及工業(yè)原料等用. 一般而言,白油 (clean oil) 多指蒸餾油,

epoxy propane：環(huán)氧丙烷

epoxy propane rubber 環(huán)氧丙烷橡膠 | epoxy propane 環(huán)氧丙烷 | epoxy repair putty 環(huán)氧修補(bǔ)膩?zhàn)?/p>

propanol torch：丙烷噴燈

propane-oxygen flame 丙烷氧火焰 | propanol torch 丙烷噴燈 | propargyl bromide 炔丙基溴

propylene oxide：環(huán)氧丙烷

此種燃料是以低溫男生女生的www、高壓的方式,將環(huán)氧乙烷(EthYlene Oxide)黄免费视频、環(huán)氧丙烷(Propylene Oxide)欧美一级毛多水多的肥婆、甲(Methane)、丙烷(Propane)等易揮發(fā)碳?xì)浠衔锏囊环N或數(shù)種,混合變成液體燃料制成.