催化的

Dependent on the palladium role of hydrogenation and hydrogen spillover, the olefins effused from the zeolite capsule catalyst were hydrogenated effectively, mostly converted to isoparaffin.

得益于钯的催化加氢和氢溢流的功能，在基于该三分结构的费托合成反应中，烯烃产物被有效的催化加氢为烷烃，且大部分被转化成了异构烷烃。

Moreover, the traditional catalytic oxidation system of isophorone contains metal and organic solvents, which cause environmental pollution.

另外传统上对异佛尔酮的催化氧化基本都是包含金属的催化体系和有机溶剂参与的反应体系，这对环境污染产生严重的影响。

The results show that calix[6] arene-bismetalloporphyrins possess much higher catalytic activity than the corresponding metalloporphyrin while displaying the sam eselectivity by giving rise to acetophenone as the ketonic component in excellent yield.

研究了杯[6]芳烃-双金属卟啉在氧化异丙苯中的催化行为，结果表明杯[6]芳烃-双金属卟啉比之相应的金属卟啉具有更高的催化活性，并表现同样的选择性，生成苯乙酮和醇组份。

Ruthenium-modified solid catalyst Ru-Co2-CeO2 was applied to the lactonization of diols in the presence of molecular oxygen and achieved highly efficient catalytic performance.

将钌改性的固体催化剂Ru-Co2-CeO2用于以分子氧作为氧化剂的二元醇的催化氧化内酯化反应中，发现该催化剂具有很好的催化反应性能。

The molecular weight of dextransucrase measured by SDS-PAGE was 170 kDa ,which was similar to the enzyme from Leuconostoc mesenteroides. The enzyme had an optimum temperature between 25and 30℃ and an optimum pH of 5.4. It was relatively stable in the range of pH 5.0 to 7.0, but the stability declined rapidly as soon as the temperature rose over 35℃.

以蔗糖为底物，酶促反应的最适温度为25～30℃，最适pH值为5.4，动力学常数Km值为10.43 mmol/L；酶活在pH 5.0～8.0较为稳定，在室温（25℃）保藏4 天仍有59%的酶活力，4℃保存7周酶活力仅下降一半，但在35℃以上失活很快；Ca2+对催化作用有较大的促进，Mg2+有微弱的促进作用，K+对催化反应无影响，Cu2+的抑制作用最强。

In this paper TiO2/minerals have been prepared using natural minerals as carrier and the industrial metatitanic acid and the industrial sulfate titanium liquid as the raw material based on the effects such as loading capacity of TiO2, specific surface area of minerals, different mineral source and preparation cost.

本研究以天然矿物对TiO_2的负载能力、比表面积、矿物来源、材料成本等因素为依据，通过对天然矿石载体的活化工艺研究和工业偏钛酸、工业硫酸钛液为原料制取TiO_2／天然矿物复合材料的制备工艺研究，以及样品光催化降解有机物的研究，最终制得了具有光催化活性的TiO_2／天然矿物复合材料。

The experiment results show that the yield of hexane catalyzed by the nano-fibrous catalyst was 4.7 times higher than that of PdCl_2/γ-Al_2O_3 catalyst. The hydrogenation ofα-tetradecylene, cyclohexene, nitrobenzol and styrene by the nano-fibrous catalyst was also studied, the selectivity to primary products of the hydrogenation of cyclohexene, nitrobenzol and styrene was 100%.

苯乙烯-丙烯腈共聚物负载纳米钯超细纤维形态催化剂在常温，氢气压力101.3Pa下催化α-己烯加氢时表现出很高的活性，催化剂PSAN-Pd10催化氢化α-己烯选择生成正己烷的产率在150 min就达到87%以上，与无机物负载的催化剂相比，加氢效果有显著提高，并且催化剂的重复使用性较好。

The catalytic activity of esterification of diisooctyl terephthalate was studied,with stannous oxide,stannous chloride,stannous octoate and their synergism as catalyst.

以3种亚锡类催化剂氧化亚锡、氯化亚锡、辛酸亚锡以及它们之间复配后作为催化剂，对对苯二甲酸二异辛酯酯化反应的催化活性进行了研究，实验结果表明，以氧化亚锡和辛酸亚锡复配后的催化活性最高，氧化亚锡和辛酸亚锡作为催化剂的酯化反应最佳合成工艺条件为：催化剂的加量为0。

Microwave-assisted ring-opening polymerizations of DTC were carried successfully with lanthanum chloride (LaCl3) and stannous octoate Sn(Oct2 ascatalyst and the highest weight average molar mass of the obtained PDTC were 66800g/mol and 14600g/mol, respectively.

分别在氯化镧和异辛酸亚锡的催化下，DTC的微波开环聚合反应可以顺利地进行，所得PDTC的重均分子量分别达到66800g／mol和14600g／mol，二者比较而言，氯化镧的催化活性更高。

The catalyst of RFG-DQ and DOCO(1) can both reduce the olefine content of gasoline dramatically, with the yield of LPG ,diesel and coke reduced and the yield of gasoline increased, as well as octane number of gasoline reduced more greatly.The olefine content of gasoline can be effectively reduced by optimizing the operation condition, lowering the reaction temperature, increasing the catalyst-to-oil ratio and using catalyst, which can improve the gasolines quantity and upgrade the gasoline.

通过优化操作条件、降低反应温度、增大剂油比和采用有效降烯烃催化剂等措施可以有效的降低催化裂化汽油的烯烃含量，提高催化裂化汽油的产品质量，达到我厂汽油产品升级换代的目的。

Breath, muscle contraction of the buttocks; arch body, as far as possible to hold his head, right leg straight towards the ceiling (peg-leg knee in order to avoid muscle tension).

呼气，收缩臀部肌肉；拱起身体，尽量抬起头来，右腿伸直朝向天花板（膝微屈，以避免肌肉紧张）。

The cost of moving grain food products was unchanged from May, but year over year are up 8%.

粮食产品的运输费用与5月份相比没有变化，但却比去年同期高8％。