Aromatic相关论文
It has been studied by the solid state 13C NMR analysis that the chemical composition and the structure feature of kerog......
The reaction of CdCl2 with 6,7-dicyanodipyridoquinoxaline (DICNQ) by solvothermal reaction gives rise to a coordination ......
MCRs for preparation of chromenopyridines under reflux conditions and chromenes at room temperature conditions from diff......
肟是有机合成中一类非常重要且常见的化合物,不仅可用作羰基化合物的保护,而且可通过肟化-脱肟过程对羰基化合物进行分离和纯化。......
A new heterocyclic compound,named 5,5’-diisobutoxy-2,2’-bifuran(1),and four known compounds(2-5) were isolated from th......
Two new compounds named decuroside VI (1) and decursidate (2) were isolated from the roots of Peucedanum decursivum - a ......
A series of poly(aryl amine ketone)s have been obtained by the condensation polymerization of different aromatic dibromi......
Two new compounds, melanochromone and 2-ethoxyl-2-(4-hydroxyphenyl)ethanol, were isolated from the whole plants of Melan......
Two new xanthone glycosides, polygalaxanthone IV and V were isolated from the roots of Polygala tenuifolia Willd. Their......
There is a more consanguineous relation be-tween nano-scale deformation of coal structure and meta-morphic-deformed envi......
The Huangpu River supplies eighty percent of daily water used for life and industry for about 20 million people in Shang......
Biomass energy sources are still popular in the rural areas of developing countries for cooking and space heating. Since......
In the synthesis of l-phenyl-5-substituted amino-4-pyrazole N-alkyl amide,it was found for the first time that one of t......
A new abietane diterpene 12-hydroxy-7-oxo-5, 8, 11, 13-tetraene-18, 6-abietanolide, together with a new natural sterol s......
Two new pyrone derivatives phelligridins A 1 and B 2 were isolated from the fruit body of Phellinus igniarius. Their st......
In the condensation of arylaldehydes with arylethylidenemalononitriles, it was found that, besides the normal product d......
New hyperbranched polyphenylenes with high molecular weights are synthesized by the copolycyclotrimerizations of 1,4-die......
The curing reaction and reaction mechanism of epoxy resin E-44, for which aromatic amine modified dicyandiamide was used......
Photocatalysis is based on the double aptitude of the photocatalyst(essentially titania) to simultaneously adsorb reacta......
该文从挂篮荷载计算、施工流程、支座及临时固结施工、挂篮安装及试验、合拢段施工、模板制作安装、钢筋安装、混凝土的浇筑及养生......
目的评价6种具有致突变作用的空气燃烧排放提取物的致肺癌作用.方法用CD-1小鼠肺瘤生物测试方法,在小鼠断奶前处理受试物3次,6个月......
采用原位还原技术制备出以单壁碳纳米管、炭黑(P90)和TiO2为支撑的3种金纳米复合材料,并通过多种表征手段来探讨物理性能.再将他们......
PET显像技术是先进的显像技术之一,其发展与正电子核素标记的PET显像剂密切相关。在众多正电子核素中,18F具有理想的物理性质,成为PET......
为探究吕家坨井田地质构造格局,根据钻孔勘探资料,采用分形理论和趋势面分析方法,研究了井田7......
考察了用氯化铵离子交换处理的MCM-22分子筛催化剂在脱除芳烃中微量烯烃的催化活性,对分子筛催化剂进行了表征.结果表明离子交换增......
目的 探讨多环芳烃(PAHs)暴露与端粒长度的关系,以寻找评价多环芳烃致外周血遗传物质损伤的效应性生物标志物.方法 以145名焦炉作......
目的 建立工作场所空气中三氯甲烷、1,2-二氯乙烷、四氯化碳、苯、甲苯、乙苯和二甲苯7种卤代烷烃类及芳香烃类化合物的溶剂解吸气......
目的 建立同时测定血清AAA含量的HPLC-FLD法,探讨CRI患者血清AAA含量变化及其临床应用价值。方法血清标本来自于100名健康体检者和8......
目的 通过调查不同组别厨师和非暴露组尿中8-羟基脱氧鸟苷(8-OHdG)的排泄量,研究8-OHdG和1-羟基芘(1-OHP)之间的关系.方法 采集不......
目的 分析太原市和长治市空气中多环芳烃的含量和新生儿神经行为发育检查(NBNA)得分,探讨孕妇呼吸含多环芳烃的空气对新生儿神经行......
A new aromatic diamine monomer containing pyridine unit, 2,6-bis (4-aminophenoxy4′-benzoyl)pyridine(BABP), was synthesi......
为考察裂解原料由重变轻给乙烯装置生产带来的影响,选择有代表性的5种轻重不同裂解原料进行了裂解性能的实验室试验,分析了原料从......
稠环芳烃可经过加氢饱和部分芳烃和开环裂化等生产单环芳烃,减少芳烃生产对石脑油的依赖。归纳了天津分公司和中沙石化(天津)公司富......
在《重整原料油及生成油中C6~C9芳烃含量测定法》(SH/T0166-92)的基础上,通过对相关参数的调整,考查了各芳烃组分的相对校正因子,利用校正......
以环己烯、苯和苯乙烯为探针物,采用原位FT—IR技术对贵金属催化剂上(活性组分呈壳层分布)吸附烃类的原位加氢反应进行了研究。结果表......
报道了对苯二酚、邻/对甲氧基苯酚的合成方法。研究了重氮水解液的酸浓度、水解温度、硫酸铜用量对产物收率的影响。改进了常用的......
I. Introduction Nitro-Polycyclic aromatic hydrocarbons(NPAHs) can be formed via the reactions of Polycyclic aromatic hy......
目的研究华中五味子藤茎的化学成分。方法华中五味子的乙酸乙酯部分经柱层析进行分离纯化,许利用波谱技术鉴定所分离化合物的结构。......
介绍了普旭真空泵的工艺作用、结构及工作原理,日常操作维护注意事项、常见故障及排除措施等。及时发现了设备问题,实现了设备的计划......
介绍了泄露检测与维修(LDAR)技术在芳烃联合装置中的应用情况,并对结果进行统计分析,得出芳烃联合装置中泄漏主要分布,同时得出LDAR......
建立了C6至C8芳烃的气相色谱分析方法。该方法使用极性毛细管色谱柱(DM-624),用氢火焰检测器在程序升温下分离非芳烃、苯、甲苯、二甲......
焦化是将煤在焦炉中干馏除去其中的挥发成分后成为焦炭的过程。在炼焦过程中逸出的气体、蒸气和烟尘统称为焦炉逸散物,其成分极其复......
对环保型芳烃橡胶添加油的产生、研制、生产、应用现状进行了简述,对其发展前景进行展望,并提出了自己的建议。......
车用燃料的烃族组分是影响排气污染物成分的重要原因,烃族配比是决定排气污染物各种含量的重要因素.芳烃是其中最为关键的因素.本......
讨论了芳香族双分子亲核取代反应中离去基电子效应的作用.从反应实例出发,通过对卤族离去基在作用物及中间体中电子效应的分析,结......
随着人们生活水平的提高,功能性家用纺织品更加受到人们的关注。开发集美观、舒适、保健功能于一体的家用纺织品,是近年来家纺产品生......
在不同温度下对HZSM-5分子筛进行水热处理并用浸渍法对其进行zn和P改性,制备了Zn—P/HZSM-5催化剂;以流化催化裂化汽油50~100℃馏分为......
为实现脂肪酸甲酯向高价值轻质芳烃和烯烃的转化,采用挤条法制备了H-ZSM-5/Al2O3复合催化剂,并在微型固定床反应装置中测试了其催......
采用双模板剂水热合成的HZSM-5分子筛为纳米多级孔分子筛,用超声的方法将金属M1和M2负载在分子筛上,负载后的催化剂催化甲醇制芳烃......