合成气

NaZSM-5 zeolites were modified by impregnation with metal nitrate and their catalytic properties for gas phase reaction of γ-butyrolactone and ethanolamine to give intermediate N-hydroxylethyl pyrrolidonewere studied.

采用金属盐溶液浸渍的方法对NaZSM-5分子筛进行改性，考察了ZSM-5分子筛对γ-丁内酯与乙醇胺之间气相反应合成N-羟乙基吡咯烷酮的催化性能。

The chemical structure of the product was characterized by means of the melting point and IR. The results show that tetraethylammonium bromide which was used as a phase transfer catalyst in this reaction had optimization effect on the interfacial diffusive reaction of BTC and PNP. Higher concentration of sodium hydroxide, lower temperature and a higher dosage of BTC produced a small amount of 4-nitrophenyl chloroformate, while lower concentration of sodium hydroxide and a lower dosage of BTC made reaction incomplete, which affected the yield.

结果表明，在碳酸二（4-硝基苯基）酯合成中使用的相转移催化剂四乙基溴化铵对受界面扩散控制的BTC气与对硝基酚钠反应有良好的相转移催化效果；氢氧化钠质量分数较低时，酚钠盐向溶有BTC的油相扩散速度较小，较高时会产生氯甲酸对硝基苯酯；温度较低、BTC量较高时，会产生少量氯甲酸对硝基苯酯，BTC用量较低会使反应不完全，这些都影响着收率。

This paper reports the study about using of clayish crushed stone for making aerated concrete.

利用不同含泥量的硅质石屑作为硅质材料与石灰钙质材料进行水热合成反应制备B05、B06级加气混凝土。

The catalytic performance of copper-nickel oxalate catalysts prepared by concurrent coprecipitation was studied in the gas-phase reaction of p-cymene synthesis by dehydrogenation of industrial dipentene.

研究了并流共沉淀法制备的草酸铜-草酸镍催化剂在工业双戊烯脱氢合成对伞花烃气相反应中的催化性能。

Using diesel and paraffin chloride as disperse phase, the hydrophobic polymeric flocculant as flocculating agent, adding wetting reversed agent and frother to disperse phase, mixing those materials, the flotation agent, which is used to disposal oily waste water effectively is obtained.

用合成出来的疏水性高分子絮凝剂与表面活性剂（包括润湿反转剂和起泡剂），以及0#柴油和氯化石蜡-52复配叶轮气浮用浮选剂。

Annual average temperature and average temperature in January mainly affected accumulation of oleic and linoleic.

年平均气温和1月平均气温是影响油酸和亚油酸合成的主要因子。

In this work, the horizontally oriented single-walled carbon nanotubes networks deposited directly on Si wafer substrate by the buffer layer-assisted microwave plasma chemical vapor deposition method were successfully developed, using CH4, C2H2 and H2 as the source gases, and Fe and Nias catalyst materials.

本研究利用缓冲层材料辅助微波电浆化学气相沉积法，以甲烷(CH4)、乙炔(C2H2)与氢气(H2)为反应气体，镍与铁为触媒，成功地开发出在矽晶片上直接合成水平方向网状单壁碳奈米管。

Submicron silicon carbide powders were synthesized via the vapor phase reaction of tetramethyl silicane induced by TEA CO2 laser.

用TEA CO_2激光诱导四甲基硅烷的气相反应，合成了亚微米碳化硅粉末，工作气压为30～300torr(4-40×10~2Pa)，激光功率密度为10~3W/cm~2量级。

CO conversion of 80.27%, 78.41% and 61.14% and selectivity to C(superscript + subscript 5) of 88.54%, 88.57% and 77.95%, respectively, were obtained for Fischer-Tropsch synthesis under n(H2): n=2.0, 483 K, 1.5 MPa and 800h^(-1) over uncalcined catalyst, those calcined at 673 K and 923 K.

在原料气n(H2)：n=2.0、483K、1.5MPa和800h^(-1)条件下，未焙烧、673K和923K焙烧的催化剂上进行F-T合成反应，CO的转化率分别为80.27%、78.41%和61.14%，重质烃的选择性C(上标+下标 5)分别为88.54%、88.57%和77.95%。

The results can be summarized as follows:(1) By laser ablating a heterogeneous reaction system which wasconsisted of solid graphite, liquid and gaseous chloroform, a series ofperchlorinated fragments of fullerenes were synthesized.

本文的工作包括以下内容：(1)用脉冲激光溅射多相反应体系，以石墨为固体靶，以氯仿为气相和液相反应物，合成了一系列全氯代富勒烯碎片。

As she looked at Warrington's manly face, and dark, melancholy eyes, she had settled in her mind that he must have been the victim of an unhappy attachment.

每逢看到沃林顿那刚毅的脸，那乌黑、忧郁的眼睛，她便会相信，他一定作过不幸的爱情的受害者。

Maybe they'll disappear into a pothole.

也许他们将在壶穴里消失