6氟双酚A与二氟二苯酮(砜)经亲核取代反应高产率地合成了含氟芳香醚环状低聚物,通过阴离子开环聚合得到了相应的高分子量的线性含氟聚醚酮(砜).这些开环聚合产物具有较高的Tg和热稳定性,6氟双酚A聚芳醚酮(砜)的玻璃化转变温度分别达到180.2℃和199.9℃.

A novel synthetic route to the high performance fluorinated polyethers is described. These high molecular weight polyethers were prepared via anion ROP of the macrocyclic aryl ether ether ketone(sulfone) oligomers containing hexafluoroisopropylidene units from 4,4''-(hexafluoroisopropylidene) diphenol and 4,4''-difluorobenzophenone or 4-fluorophenyl sulfone. These fluorinated polyethers exhibit high glass transition temperature and thermal stabilities. DSC analyses show a Tg of 180.2℃ for polyetheretherketone and 199.9℃for polyetherethersulfone respectively in nitrogen atmosphere.

在固定床反应器中研究了二甲基二硫醚对Ni／Al2 O3上模拟裂解汽油原料油中主要化合物芳烃、单烯烃和共轭烯烃的加氢活性的影响。结果显示，二甲基二硫醚对以上化合物加氢抑制的顺序为：芳香环＞单烯烃＞共轭烯烃。通过XRD和XPS表征分析，推测了Ni／Al2 O3催化剂失活的可能原因。

The poisoning effect of CH3 SSCH3 on Ni/Al2 O3 catalyst for hydrogenation of model pyrolysis gasoline was studied in a fixed-bed reactor.The results showed that CH3 SSCH3 has negative effect on the catalytic activity of Ni/Al2 O3 catalyst for hydrogenation of aromatic nucleus,monoene and conjugated alkene in the sequence of aromat-ic nucleus>monoene>conjugated alkene.According to the analysis of the results of XRD and XPS,we got the possible reason of Ni/Al2 O3 catalyst for hydrogenation of model pyrolysis gasoline.

研究藏药甘肃蚤缀的脂溶性成分,进一步揭示该药材的化学成分,为这一传统藏药资源的开发利用提供实验依据。采用95%乙醇回流提取甘肃蚤缀全草,滤液浓缩后用石油醚萃取,得到脂溶性部位,通过气相色谱-质谱联用技术分析其化学成分,结合计算机检索技术及美国国家标准技术研究所(NIST)化合物谱库检索进行鉴定,采用面积归一化法确定其相对含量。从甘肃蚤缀石油醚部位共分离鉴定出25个化合物,相对含量占总含量的91.31%,包括脂肪类、甾体、三萜及芳香化合物等。

The first study was to explore the chemical compounds of the liposoluble parts from Arenaria kansuensis Maxim,and pro-vide the test basis for further rational expoitation and utilization of its medicinal resources. The air-dried whole plants of Arenaria kansuensis Maxim. were extracted with 95% ethano1. The extract was concentrated and extracted with petroleum ether to get the li-posoluble parts,and the chemical composition was identified and analyzed by GC-MS method. Combining with computer retrieval technology and search of national institute of standards and technology( NIST) compound spectral-library for identification,their rela-tive content was determined by the area normalization method. Totally 25 compounds were identified and their corresponding relative contents were evaluated by area normalization method. The content of all identified compounds is 91. 31%,of them,most are ali-phatic derivatives,steroids,triterpene and aromatic compounds.

在管式反应器上进行了霍林河褐煤加压快速热解实验,研究了CO气氛下CH4逸出规律。在加压快速热解条件下,由于CO解离态吸附的O(a)吸附在煤上,提供了活性中心,电负性强的O(a)诱发其周围其他原子的电子云向O(a)偏移,减弱了原来化学键的强度,导致芳香环的开裂,侧链、醚键和脂肪链的断裂提供更多的自由基,稳定煤热解生成的碎片,促进了CH4的生成和逸出。因此,CO气氛下CH4产率较N2气氛下的高,在900℃、1.0 MPa时,50%CO气氛下的CH4产率较N2气氛下的提高了12.5%,并且CH4产率随着温度升高、压力的增大而增大。

Fast pyrolysis of Huolinhe lignite was carried out under pressure in a tubular reactor, and the CH4 evolution at CO atmosphere was examined. CO dissociation state O( a) adsorbed on coal is an active center. The stronger electronegative O could induce the electron cloud of other atoms around O ( a ) atom to offset to it, which could weaken the strength of original chemical bonds and promote their breaking. These result in the cracks of the aromatic ring, side chain, ether linkages and aliphatic chain in the char, which could produce more free radicals. The free radicals could stabilize the fragments produced in the pyrolysis, and lead to more CH4 generated and involved. Therefore, the CH4 yield is higher under CO than it in N2 . The CH4 yield increases by 12. 5% under CO compared with N2 at 900℃ and 1. 0 MPa. The CH4 yield increases with raise of temperature and pressure.

针对新疆某油田重度石油污染土壤，进行了洗涤剂的复配及洗脱条件的优化研究。考察了阴离子表面活性剂浓度、非离子表面活性剂浓度以及硅酸钠助剂浓度对残油量的影响。正交实验结果表明，十二烷基苯磺酸钠（LAS）与烷基酚聚氧乙烯醚（平平加，APEO）间存在着较强的交互协同作用；两者复配可以增强洗涤效果，并减少药剂用量。优化的复配洗涤剂配方为： LAS 2g/L，平平加3g/L，Na2SiO33g/L。复配洗涤剂洗涤含油污泥的最佳操作条件为：液固质量比10∶1、洗涤温度70℃、洗涤时间1h，在此条件下污泥含油量从26.07%降低至1.21%。对污泥洗涤前后的红外光谱检测表明该复配洗涤剂对于污泥中原油的饱和分、芳香分、胶质和沥青质都有洗涤效果，特别是对饱和分的去除效果尤为显著。

Preparation of complex detergent and experiments for the optimization of washing condition were conducted by treating the heavily oil-contaminated soil from an oilfield in Xinjiang. Orthogonal experiments were carried out to investigate the influence of concentrations of anionic surfactant, nonionic surfactant and the assistant washing agents (sodium silicate) on the residual oil content in the sample. It was found that there was a strong interaction between LAS and APEO,which enhanced washing effect and reduced the amount of detergent. The best detergent formulations were:sodium dodecyl benzene sulfonate (LAS) 2g/L,alkyl phenol ethoxylates (APEO) 3g/L,Na2SiO3 3g/L. The optimal liquid-solid ratio,temperature and washing time were 10∶1,70℃ and 1h. The oil content in sludge sample reduced from 26.07% to 1.21% by washing. The components removed by washing were analyzed by infrared spectroscopy (IR). It showed that most saturates,aromatics,resin, asphaltene in oily sludge were