查询词典 catalyzer

The annulation of stilbene compounds were studied. Phenanthrene derivates-interme diates of tylophorine were synthesized by annulation from-2,3-bis(3,4-dimethoxyphen yl)acrylic acid and-2,3-bis(3,4-dimethoxyphenyl) acrylonitrile with phenyliodine diace tate as a friendly and high efficient catalyzer.The route was first reported, whose application foreground would be promising.The catalyzer will be used to study of synthesi- zing a series of new phenanthrenes.

本文还探索了简单类化合物关环反应，并研究出用廉价高效对环境友好的催化剂-二乙酸碘苯成功地将类化合物－3，4-二甲氧基-α-(3，4-二甲氧苯基)-肉桂酸和-2-(3，4-二甲氧苯基)-3-(3，4-二甲氧苯基)-丙烯关环形成相应的菲环衍生物－娃儿藤碱重要中间体，此方法在国内尚属首次，具有重要的应用价值，此外可用此催化剂研究一系列类化合物的关环反应。

NC307 catalyzer using to synthesize carbinol made use of theory production of investigating C306 and FC306 catalyzer, this catalyzer put up more high space-time yield and thermal stability.

NC307型甲醇合成催化剂的研制充分利用C306和FC306型甲醇合成催化剂研究过程中取得理论成果，表现出更高的甲醇时空产率和选择性、热稳定性。

The method could provide important basis of the experimental data to the catalyzer improvement and mechanism.

该方法可为催化剂的改进与催化机理研究提供重要的基础实验数据。

The role of bank as an industry catalyzer is connected with its market structure and regulations.

商业银行在催化产业方面的作用既取决于银行业本身的市场结构，也与银行业的管制有关。

The efficiency of catalytic combustion was more than 95 percent when the longth of catalyzer was 160 millimeter.

当催化剂的长度为160mm时，催化焚烧的效率能达到95%以上。

The yield was about 32% by optimizing the scalar of catalyzer and the molar ratio of reactants.

在实验中，对催化剂的用量和反应物的投料比进行了优化，在最优条件下，目标产物收率为32％左右。

The used catalyzer is in as-cast or hydrogenization state and is prepared by mixing magnesium metal and Ti-V based alloy for catalyzer together and then ball-milling the mixture for 0.5-5 hours under hydrogen atmosphere of 1-50 atmosphere pressures.

所使用的催化剂为铸态或氢化态；制备的方法是将镁金属与作为催化剂Ti-V基合金混合后，在氢气氛下球磨0.5-5小时，球磨时所用的氢压为1-50大气压。

In addition, the invention further relates to a catalyzer combination used for polymerizing a conjugated dialkene monomer and the anions of an optional mono-vinyl aromatic hydrocarbon into a polydiene polymer having high and medium vinyl content. The catalyzer combination comprises an organolithium compound used as an anionic polymerization initiator, at least an alkali metal alkoxide compound expressed by the formula as a structure regulator.

此外，本发明还涉及一种用于将共轭二烯烃单体和任选的单乙烯基芳烃阴离子聚合成具有中高乙烯基含量的聚二烯聚合物的催化剂组合物，其包含作为阴离子聚合引发剂的有机锂化合物，和作为结构调节剂的至少一种式所示的碱金属醇盐化合物。

The optimal technical conditions of the later were that cuprous chloride and 1,10-phenanthroline were used as catalyzer, the molar proportion of catalyzer and 4,4′-diiodobiphenyl was 0.15:1, and the reaction mixture was refluxed for 7h in the solvent of xylene at 150℃.

后者的适宜工艺条件为以二甲苯作溶剂，氯化亚铜和邻菲咯啉为催化剂，催化剂与4，4′-二碘联苯的摩尔比为0.15∶1，在150℃下回流反应7h。

Dimethyl carbonate was used as the methylating reagent, o-vanillin as the material and K2CO3 as the catalyzer to synthesize oV. The effect of material ratio, reaction time, reaction temperature and catalyzer dosage on its synthesis reaction was investigated.

方法］采用碳酸二甲酯作为甲基化试剂，以邻位香兰素为原料，无水碳酸钾为催化剂，合成邻藜芦醛，研究物料配比、反应时间、反应温度和催化剂量对反应的影响。

Neither the killing of Mr Zarqawi nor any breakthrough on the political front will stop the insurgency and the fratricidal murders in their tracks.

在对危险的南部地区访问时，他斥责什叶派民兵领导人对中央集权的挑衅行为。

In fact,I've got him on the satellite mobile right now.

实际上 我们已接通卫星可视电话了