乙烷

The nonionic surfactant is selected from the group consisting of a polymeric ether, a mixture of laurate esters of sorbitol and sorbital anhydrides condensed with ethylene oxide; and mixtures thereof.

所述非离子型表面活性剂选自聚合醚；与环氧乙烷缩合的山梨醇月桂基酯和山梨醇酐的混合物；它们的混合物。

Synthesis of organic sulfuric compounds in aqueous media is carried out by: using thio-olefin compounds with carbonyl compounds, acetal/keltone, hydrazone, oxime, osazone and enamine to synthesize mercaptal/keltone compounds in aqueous media; using thio-olefin compounds with alpha-hydroxyaldehyde/keltone or alpha-halogenated aldehyde/keltone to synthesize thia-olefin derivatives in a queous media; using thio-olefin compounds with alpha, beta-unsaturated hydroxy compounds, C-C treble bond, C-N treble bond, C-C double bond, N-N double bond, C-N double bond, C-S double bond, epoxy and its derivatives, aziridine and its derivatives, cyclopropane and its derivatives and halogenated carboxy to synthesize sulfoether compounds in a queous media.

含水介质中有机硫化合物的合成方法，本发明属于有机合成方法，用硫缩烯酮类化合物与羰基化合物、缩醛/酮、腙、肟、脎、烯胺在含水介质中合成缩硫醛/酮化合物，与α-羟基醛/酮或α-卤代醛/酮在含水介质中合成噻烯类衍生物，与α，β-不饱和羰基化合物、碳碳叁键、碳氮叁键、碳碳双键、氮氮双键、碳氮双键、碳硫双键、环氧乙烷及其衍生物、氮杂环丙烷及其衍生物、环丙烷及其衍生物、卤代烃等在含水介质，中合成硫醚化合物。

The first part is to synthesize 5-formyl -8- quinolinol from 8-uinolinol and chloroform , using ethanol as a solvent. Then analysizing the 5-formyl-8-quinolinol by IR. The second part is , according to ideas of molecule designing, to synthesize the new self-assembly Inorganic-Organic coordination polymers Co(u2-bpyV2O6,(C4H4N2)Ni2(H2O)2-V4Ol2,(Cl2Hl2N2)Co-V2O6 using Cu, Ni, and Co as templating, 4-cyano-pyridine(4-CNPy), 4,4-bipyridine,pyrazine, l,2-bis(4-pyridyl)ethane, 5-formyl -8- quinolinol as building blocks and Ammonium Metavanadate (NH4VO3) as subordinate building blocks by Hydrothermal , analysizing their content of element determining their structures by X-Ray diffraction.

本课题实验分为两部分：一是配体的合成，以8-羟基喹啉、三氯甲烷为原料，以乙醇为溶剂，合成了5—甲醛基—8羟基喹啉并且对其进行了IR的分析测定；二是配位聚合物的合成，通过分子设计，采用溶剂热法以Cu、Ni、Co为中心离子，以5—甲醛基—8羟基喹啉、4，4-联吡啶、吡嗪、1，2-二吡啶基乙烷为配体，以偏钒酸根(VO_3~-)为辅助配体，通过水热法自组装合成了新的3-D网状结构配位聚合物Co(μ_2-bpy)V_2O_6，(C_4H_4N_2)Ni_2(H_2O)_2·V_4O_(12)，C_(12H_(12)N_2Co·V_2O_6，并对其进行了元素分析和晶体结构的测定。

The ring-opening polymerization process of ethylene oxide as initiated by sodium methoxide was studied using the density functional theory /Dmol^3 method.

运用密度泛函理论的Dmol^3方法，计算了甲醇钠引发的环氧乙烷开环聚合的反应过程。

Surface complex supports VSiO, which have good engineering character, and supported Pd/VSiO and Cu/VsiO catalysts have been prepared by surface chemical reaction modification and isovolume impregnation method, respectively. BET, TPR, chemisorption-IR chemisorption-TPD and microreaction techniques have been used to study the adsorption activation and partial oxidation reactivity of CO〓 and C〓H〓 on the Pd/VSiO and Cu/VSiO catalysts.

以表面化学反应改性法制备了工程性质优良的VSiO表面复合物载体，并以等体积浸渍法制备了负载型的Pd/VSiO和Cu/VSiO催化剂；采用BET、TPR、化学吸附—IR、化学吸附—TPD和微反技术研究了Pd/VSiO和Cu/VSiO催化剂对CO〓和乙烷的吸附活化和部分氧化反应性能。

Bis-imidazoline was prepared from triethylene tetraamine and N,N-dimethylformamide dimethyl acetal at 85℃ for 2 h with toluene as solvent, with a yield of 90.4%. The reaction of bis-imidazoline with 1,2-dibromoethane and potassium carbonate in acetonitrile provided with a monobromide salt yield of 78.7%. Hydrolysis of monobromide salt under aqueous causic solution formed 1,4,7,10-tetraazzcyclododecane in a 74.2% yield.

用甲苯作溶剂，使三乙烯四胺和N，N-二甲基甲酰胺二甲基缩醛在85℃反应2 h，得到中间体双咪唑啉，产率90.4%，在乙腈溶剂中，碳酸钾存在下，双咪唑啉和1，2-二溴乙烷进行扩环反应，得到环状中间体一溴盐，产率78.7%，一溴盐经碱性水解2 h，得到1，4，7，10-四氮杂十二烷，产率74.2%。

Reactor Construction: Multitube reactor systems for chemical industry ( all technical heat transfer fluids,particularly mkoltensalt 50 years experience) for production of:phthalic anhydride,maleic anhydride,acrolein,methyl methacrylate,methanol,ethylene oxide and other endothermic and exothermic catalytic gasphase processes.

反应器制造部：列管反应器系统，用于化学工业(所有工业用热交换流体，特别是熔盐传热)中生产苯酐，顺酐，丙烯醛，丙烯酸，甲基丙烯酸甲酯，甲醇，环氧乙烷及其他放热与吸热气相催化生产工艺。

Reactor Construction: Multitube reactor systems for chemical industry ( all technical heat transfer fluids,particularly mkoltensalt 50 years experience) for production of:phthalic anhydride,maleic anhydride,acrolein,methyl methacrylate,methanol,ethylene oxide and other endothermic and exothermic catalytic

简介： 反应器制造部：列管反应器系统，用于化学工业（所有工业用热交换流体，特别是熔盐传热）中生产苯酐，顺酐，丙烯醛，丙烯酸，甲基丙烯酸甲酯，甲醇，环氧乙烷及其他放热与吸热气相催化生产工艺。

Methods Brain microvascular endothelial cells and neuroglial cells of newborn rats were cultured in vitro, and treated with 1,2-dichloroethane at a dose of 0 μl/ml, 5 μl/ml, 10 μl/ml or 20 μl/ml.

方法］在体外建立了血脑屏障细胞模型，并从形态学上观察1，2-二氯乙烷对血脑屏障细胞的损伤作用。

Starting with boric acid and glycerin, several organoboron based surfactants using diglycerin borate as intermediate and modified with epoxyethane were synthesized.

以硼酸和甘油为起始原料，合成了几种以硼酸双甘油酯为中间体及环氧乙烷修饰的有机硼表面活性剂。

According to the clear water experiment, aeration performance of the new equipment is good with high total oxygen transfer coefficient and oxygen utilization ratio.

曝气设备的动力效率在叶轮转速为120rpm～150rpm时取得最大值，此时氧利用率和充氧能力也具有较高值。

The environmental stability of that world - including its crushing pressures and icy darkness - means that some of its most famous inhabitants have survived for eons as evolutionary throwbacks, their bodies undergoing little change.

稳定的海底环境─包括能把人压扁的压力和冰冷的黑暗─意谓海底某些最知名的栖居生物已以演化返祖的样态活了万世，形体几无变化。