N—（D,L—异丙酸基）—马来酰亚胺的合成

研究Ｎ－（Ｄ,Ｌ－异丙酸基）－马来酰胺酸闭环合成Ｎ－（Ｄ,－异丙酸基）－马来酰亚胺,考察了溶剂、催化剂用量、反应时间对产率的影响,同时也考察了混合剂对粗产物重结晶的影响,确定了最佳反应条件。所得Ｎ－（Ｄ,Ｌ－异丙酸基－）民来酰亚胺的产率达５２％。本实验具有产率高、溶剂容易回收、ＡＭＡ不需纯化等优点。     

气相法合成2—乙基—3,5—二甲基吡啶的研究

介绍了催化剂的制备方法,用微型反应色谱系统在常压,３５０℃,原料物质的量配比为ＮＨ３：Ｃ３Ｈ６Ｏ＝１：２的条件下,考察了各种催化剂对２－乙基－３,５－二甲基吡啶（ＥＤＭＰ）收率的影响,催化剂为Ｃｏ３Ａｌ２（ＰＯ４）４时,ＥＤＭＰ的收率最高;考察了催化剂粒度圣转化率的影响,粒径小于０．８ｍｍ时转化率较高,研究了温度对ＥＤＭＰ收率的影响,确定合适温度为３５０～４００℃。     

3—甲基—1—苯基—1—磷杂环戊—3—烯—1—氧化物的合成

报道了ＭＤＩ液化改性用的催化剂３－甲基－１－苯基－１－磷杂环戊－－３烯－１－氧化物的合成工艺,该合成工艺由苯开始,原料蝗得,生产成本低,研究制备的该催化剂,催化活性高,用量少,应用该催化剂经改性后的ＭＤＩ质量好     

共聚聚酯酰胺交替结构的研究

探索了Ｎ，Ｎ＇－双（对羰甲氧基苯甲酰基）己撑二酰胺（ＤＥＡ）与１，６－己二醇进行酯交换、缩聚反应的催化剂，并对酯交换率和熔融缩聚反应动力学等进行了研究。通过红外光谱，Ｈ＇－ＮＭＲ．Ｃ￣（１３）－ＮＭＲ等证实了所合成的聚合物为交替结构的聚酯酰胺。经熔点、粘度、热氧化稳定性等的测定可知，所合成的交替结构聚酯酰胺（Ａ－ＰＥＡ）具有较为优良的性能。     

木素电解加氢伏安曲线及动力学模型的研究

在隔离式电解槽中,以Ｐｔ作阳极,泡沫铅（ＳＰｂ）作阴极,饱和甘汞（ＳＣＥ）作参考电极, ＤＭＦ＋ＥｔＯＨ＋Ｂｕ４ＮＢｒ＋Ｈ２Ｏ作电解加氢体系,测定了木素电解加氢的伏安曲线,用Ｑｕａｓｉ－Ｎｅｗｔｏｎ数值回归法推导了木素电解加氢反应动力学模型。结果表明：在阴极电位Ｖ＝－１．７～－２．８Ｖ之间,木素可进行电解加氢反应。木素电解加氢反应的动力学模型为     

1—甲氧基—4—烷氧基苯的合成及表征

用对甲氧苯酚（ＭＯＰｈ）,Ｈ（ＣＨ２）ｎＢｒ（ｎ＝２,４,７,８,１０）和ＣＨ３ＯＮａ／ＣＨ３ＯＨ在Ｎ２气保护下回流反应１６ｈ得到相应的１－甲氧基－４－烷氧基醚,产物结构由ＩＲ和＾ＨＮＭＲ来确定,讨论了各种反应条件对产率的影响。     

N,N—二甲基苯胺氧化制备N—甲基甲酰苯胺的研究

本文以Ｎ，Ｎ－二甲基苯胺为原料，Ｎ，Ｎ－二甲基甲酰胺（ＤＭＦ）为溶剂，在催化剂存在下，用氧气氧化，一步合成了Ｎ－甲基甲酰苯胺。     

CR／MMA—BA自交联型接支共聚物

研究了Ｎ－羟甲基丙为安（Ｎ－ＭＡＡ）存在下氯丁橡胶（ＣＲ）／甲基丙烯酸甲酯（ＭＭＡ）－丙烯酸丁酯（ＢＡ）的三元接枝共聚及产物性能。结果表明,在引发剂质量为ＣＲ的１．８￣２．２％,Ｎ－ＭＡＡ质量为ＣＲ的１．６－１．８％,ＢＡ用量为３６％,反应时间为４ｈ,反应温度为８０－８５℃时产物的性能较优。对产物还进行了红外光谱表征和性能测试。     

SBS常压加氢反应的红外光谱表征

ＳＢＳ在常压（０．１ＭＰａ）下镍系催化剂Ｎｉ（ｎａｐｈ）２－Ａｌ（ｉ－ｕ）３的加氢反应发生在聚丁二烯链段上,苯乙烯链节不与加氢反应。以芳环Ｃ＝Ｃ在１４９２ｃｍ＾－１处的特征吸收峰为内标导出了采用９１０,９６６,１４１７ｃｍ＾－１进行聚丁二烯嵌段中１,２－链节、顺－１,４链节和反－１,４链节加氢度的定量计算式,     

（4—N,N—二甲氨基）—苯基—N—苯基硝酮在高聚物薄膜中光化学反…

本工作测定了（４－Ｎ，Ｎ－二甲氨基）－苯基－Ｎ－苯基硝酮（ＤＭＡＰＮ）在不同介质中光照后折射率的变化，发现其折射率随光照时间的增长而明显降低。工作研究了ＤＭＡＰＮ在高分子薄膜内的光化学反应与高聚物分子量的关系，在分子量较低的区域，高分子介质对小分子反应的影响是不规则的，而在高分子量区，则随着分子量的增大，反应速率下降，对所得的结果进行了初步讨论。     

加氢精制催化剂在催化干气变温-加氢净化工艺中的应用

介绍了JT-4和JT-1G型加氢精制催化剂在制氢装置催化干气变温-加氢净化工艺中的应用情况。结果表明,两种催化剂具有良好的烯烃和有机硫低温加氢活性。催化干气经变温-加氢精制后,完全满足制氢工艺要求。     

加氢精制催化剂在焦化干气制氢装置上的应用

介绍了JT-4和JT-1G加氢催化剂在中国石化荆门分公司焦化干气制氢改造中的使用情况。结果表明，两种加氢催化剂具有良好的烯烃和有机硫低温加氢活性。焦化干气经加氢精制后，完全满足制氢工艺要求。     

Catalysts with noble metals based on super-cross-linked polystyrene for the hydrogenation of aromatic hydrocarbons

A series of catalysts containing noble metals on a super-cross-linked polystyrene (SCP) support with a developed specific surface area (>1000 m²/g) and high thermal stability are prepared and studied to develop an effective catalyst for the low-temperature hydrogenation of aromatic hydrocarbons. A study of Pt- and Pd-containing catalysts based on SCP, carbon supports, and alumina in the hydrogenation of simple (benzene, toluene), branched (n-butylbenzene) and polycyclic (terphenyl) aromatic compounds is conducted. In the hydrogenation of aromatic hydrocarbons, the activity of the catalysts on SCP is comparable to or surpasses analogous catalysts based on Al₂O₃ and Sibunit in the content of noble metals; it is established that catalysts on SCP have greater selectivity in the hydrogenation of benzene in a benzene-toluene mixture. The electronic state of metals in the Pt(Pd)/SCP catalysts is studied by the IR spectroscopy of adsorbed CO. In testing the catalysts in the hydrogenation of terphenyl, it is found that Pt-containing catalyst on the SCP can operate in reversible hydrogenation-dehydrogenation cycles (terphenyl-tercyclohexane); this is promising for the use of such catalyst systems in creating composite materials for hydrogen storage.     

Hydrogenation of aromatic aldehydes to aromatic hydrocarbons over Cu-HZSM-5 catalyst

With benzaldehyde as a model compound, the hydrogenation of aromatic aldehydes to aromatic hydrocarbons was investigated. Cu-HZSM-5 exhibited excellent catalytic performance for the reaction. The obtained catalysts were characterized by N₂ adsorption/desorption, N₂O chemisorptions, X-ray diffraction, NH₃-temperature programmed desorption and X-ray photoelectron spectroscopy. It was found that Cu⁰ active species exhibited poor activity for the hydrogenation of benzene ring, while the strong acidity of HZSM-5 accelerated the hydrogenation reaction via hydrogen spillover phenomenon and the C–O activation effect. In addition, the catalyst was proved to be effective for the hydrogenation of a series of aromatic aldehydes to corresponding aromatic hydrocarbons.     

锆/铪基催化剂催化转移加氢反应的研究进展

催化转化是可再生生物质资源利用的重要途径,高效催化剂的构建是生物质及其衍生物催化转化的关键环节。生物质衍生羰基类化合物加氢转化为醇或酯类化合物是生物质催化转化利用过程中重要的反应步骤。由于氢转移加氢反应过程具有反应条件温和的优点,因此非均相氢转移加氢催化剂在羰基类生物质平台分子转化中得到广泛应用。过渡金属锆、铪是常用的氢转移加氢反应活性金属。围绕不同锆/铪基氢转移催化剂的制备及其在生物质平台分子加氢转化反应中的应用进行综述。简要介绍了锆、铪氢转移催化剂的制备方法,详细介绍锆氧化物或氢氧化物、不同配体（羟基、羧酸、膦酸、磺酸、钨酸、胺类、有机金属骨架、沸石分子筛）配位锆/铪基催化剂、双金属催化剂,并对比分析它们的催化性能、循环稳定性和结构机理,最后对生物质氢转移加氢催化转化及其催化剂构建发展趋势进行了展望。     

JT-1G/JT-4型加氢精制催化剂在逆流等温-绝热加氢精制工艺上的应用

介绍了JT-1G/JT-4型加氢精制催化剂首次配合逆流等温-绝热加氢精制工艺,用于焦化富气制氢装置的使用情况。工业应用表明,JT-1G/JT-4型加氢精制催化剂在生产过程中催化性能良好,完全满足焦化富气作为制氢原料对烯烃饱和的要求,并将有机硫加氢转化为无机硫,经氧化锌脱硫剂脱硫后,原料中硫的质量分数降至0.2×10^-6。     

Ru-containing catalysts on polymer supports for converting cellulose into polyols

Ru-containing catalysts on hyper-cross-linked polystyrene (MN 270) and its functionalized analogs (MN 100 and MN 500) are used in the hydrolytic hydrogenation of cellulose for the first time. The texture characteristics of the polymer supports and the catalysts are determined via low-temperature nitrogen adsorption. Experiments on converting cellulose into polyols are performed in a 50 cm³ steel reactor in subcritical water at 245°C, a partial pressure of hydrogen of 6 MPa, and a stirrer velocity of 600 rpm. The morphological parameters of the supports correlate with the activity of the catalysts. The 1.0% Ru/HPS MN 270 catalyst displays the highest activity. The total yield of sorbitol and mannitol is 50% on average at a cellulose conversion of 85%, which is comparable to the figures for more complex and expensive catalysts. The parameters of cellulose conversion can be further optimized and the proposed catalysts improved to develop a highly effective procedure for processing cellulose biomass into raw materials for chemical synthesis and the production of second-generation biofuels.     

氢转移反应的研究概述

氢转移反应是利用氢供体作为氢源对氢受体进行还原的一类反应,该反应与普通的氢气加氢反应相比,反应条件温和、对设备要求不高,在实验室研究和工业生产中均有广阔的应用前景。本文作者在研究氢转移反应还原芳磺酸的基础上,对氢转移反应的工艺条件、催化剂和氢供体种类、适用的反应类型等进行了较系统的总结,重点对近年来的相关文献进行了综述,表明氢转移反应是一种高效、绿色、资源化利用氢供体的氢化、氢解还原工艺。     

稠环芳烃加氢饱和催化剂研究进展

受共振能、空间位阻和竞争吸附等方面的影响,稠环芳烃末环的吸附活化是其加氢饱和反应的重点和难点之一。本文系统综述了稠环芳烃加氢饱和反应特点及各类稠环芳烃加氢饱和催化剂。分析表明,稠环芳烃吸附活化与其分子自身的属性和催化剂的性质密切相关,调控催化剂中活性金属的电子状态可有效促进稠环芳烃分子的吸附活化。针对常见稠环芳烃加氢饱和催化剂,本文分类阐述了各类稠环芳烃加氢饱和催化剂的活性相结构、活性位点数量和活性金属电子密度的调控方法。分析指出,提高活性组分的分散度和形成活性金属的缺电子状态能够提升催化剂的加氢活性,可通过调节载体的酸性和添加助剂等方法实现。     

Hydrogenation of carbon dioxide by hybrid catalysts,direct synthesis of aromatics from carbon dioxide and hydrogen

Direct synthesis of aromatics from carbon dioxide hydrogenation was investigated in a single stage reactor using hybrid catalysts composed of iron catalysts and HZSM-5 zeolite. Carbon dioxide was first converted to CO by the reverse water gas shift reaction, followed by the hydrogenation of CO to hydrocarbons on iron catalyst, and finally the hydrocarbons were converted to aromatics in HZSM-5. Under the operating conditions of 350°C, 2100 kPa, and CO₂/H₅ = 1/2, the maximum aromatic selectivity obtained was 22% with a CO₂ conversion of 38% using fused iron catalyst combined with the zeolite. Together with the kinetic studies, thermodynamic analysis of the CO₂ hydrogenation was also conducted. It was found that unlike Fischer Tropsch synthesis, the formation of hydrocarbons from CO₂ may not be thermodynamically favored at higher temperatures.