条件反应

The catalysts were prepared by impregnation and precipitation method, and the active carbon,γ-Al2O3, silica and kieselguhr were selected as the carriers of catalyst. the effects of reaction conditions, such as reaction temperature, types of solvents, and types of hydrogen donors were investigated, It was found that the Pd/C catalyst was the best one, and its proper reaction conditions were also obtained as follow: sodium formate as hydrogen donor, water as solvent, reaction temperature of 70℃ and reaction time of 2.5h.

以活性炭、γ-Al2O3、硅胶和硅藻土等为载体，分别采用浸渍法和沉淀法制备了催化剂，对于反应温度、溶剂及氢供体的种类等反应条件的影响进行了研究，发现以沉淀法制备的Pd/C催化剂是对转移加氢最有效的催化剂，初步确定了适宜的反应条件为以甲酸钠作氢供体、水作溶剂及70℃反应2.5h等。

The influences of reaction conditions such as material ratio, reaction temperature and time were studied.The optimum preparing condition was that the mole ratio of 1,3-diiminoiso- indoline and trimethoxysilane was 4:3,sodium methylate and tributylamine as additive ,reaction time 11h at 220℃, the yield of metal-free phthalocyanine was 46.7％.

并对反应时间、反应温度、原料配比等影响因素进行了研究，优化了工艺条件，得到的最佳反应条件是在酞菁素和三甲氧基硅烷的摩尔比为4：3，甲醇钠和三丁胺为添加剂，于220℃反应11h，无金属酞菁的最高收率为46.7％。

The optimum reaction conditions were found finally. The results showed that the suitable conditions are under methanol solvent reaction temperature 40℃,the concentration of catalyzer TS-1 0.6%.,reaction time 60 minutes,propylene pressure 0.4Mpa under methanol solvent.Under Supercritical fluid system,the reaction temperature was 33.7℃(supercritical and near critical temperature),the reaction pressure was 7.58Mpa(near critical pressure and critical pressure range. propylene ), propylene pressure 0.65Mpa, reaction time 45min, cosolvent molality 4%.

而超临界体系下反(来源：4e56ABC论文网www.abclunwen.com)应温度适宜在近超临界和临界温度(33.7℃)以上，反应压力也是接近临界压力或者处于临界压力范围(7.58Mpa)，丙烯压力是0.65Mpa，反应时间45min，共溶剂甲醇摩尔浓度4%，在此反应条件下，反应的转化率98%，选择性96%，收率94%，与传统条件相比较，收率提高了20%左右。

Study on the synthesis of the antistatic agents of didodecyl phosphate and its salts ——The synthesis and technology optimization of didodecyl phosphoryl chloride;2. The synthesis of didodecyl phosphate and its salts by the reaction of 1-dodecanol with phosphorus oxychloride was studied.

研究了以三氯氧磷与月桂醇为原料合成磷酸二月桂酯(C12-DAP)及其盐的工艺条件，考察了反应温度、反应时间和物料配比等因素对酯化反应与水解反应进程的影响，通过优化实验方法，选择了适宜的合成工艺条件。

This article developed a series of work on the model reactant.

围绕这一模型底物，从溶剂、反应时间以及反应添加物等几个方面对PET环合反应的条件进行了优化，得到了反应的最优化条件。

The effects of molar ratio of linoleic acid and ethanol, temperature , and amount of ionic liquid on esterification reaction were studied and the optimal reaction conditions were obtained, that is, n :n = 4:1 , at refluence temperature, with the amount of ionic liquid equaling 42wt.

研究了环境友好的BF4离子液体催化亚油酸等高碳脂肪酸与无水乙醇酯化反应，考察了亚油酸与乙醇的摩尔比、反应温度、离子液体用量等条件对亚油酸酯化反应结果的影响，优化了反应的工艺条件。

Some factors, such as the reaction temperature, system pressure, solution acidity, sodium chlorate concentration and the quality ratio of hydrogen peroxide to sodium chlorate on reaction are studied.

研究了反应的温度、真空度、硫酸浓度、氯酸钠浓度、过氧化氢和氯酸钠摩尔比等反应条件对反应影响，得出了实验室制备二氧化氯的最佳反应条件。

The reactants were managed to be colloidal by reaction control and using appropriate nucleating agents. Acerate HA crystal obtained under different conditions was sintered to obtain the nano-HA granule with a diameter of 1-56 nm.

材料：采用磷酸二氢钙和氢氧化钙中和反应构造体系，通过控制反应条件，适量加入形核剂，使反应物成为胶体状态，在不同反应条件下得到针状羟基磷灰石纳米晶体，再进行烧结除处理，得到羟基磷灰石纳米粒子，直径为1~56 nm。

A compound 2-(3-hydroxyphenyl)[60] fullerene pyrrolidine was synthesized by the 1,3-dipolar cycloaddition reaction of the fullerene(C60) and azomethine ylide (prepared from glycine and 3-hydroxybenzaldehyde). The product was characterized by UV-Vis,1H-NMR ,FT-IR and MS. The reaction conditions affecting the yields of product were investigated and the optimum reaction conditions with product yield 75%(based on consumed C60) were:molar ratio of C60∶3-hydroxybenzaldehyde:glycine 1∶3∶6,reaction temperature 95℃,reaction time 18h.

利用甘氨酸和3-羟基苯甲醛与C60发生1， 3-偶极环加成反应，合成分离得到了2-(3-羟基苯基)[60]富勒烯吡咯烷，用UV-Vis、1H-NMR、FT-IR、MS等测试手段表征了产物的结构，并通过单因素方法，探讨了反应条件对产物产率的影响，得到最佳工艺条件：反应物摩尔比1∶3∶6，温度95 ℃，反应时间18 h，产物的产率可达75%（以消耗的C60计）。

N,N′-Disubstituted ureas,used as intermediates for synthesis of pesticides,resin precursors and carbamates,were synthesized from carbon dioxide and primary amines(namely n-propylamine, n-butylamine ,n-amylamine,n-hexylamine,benzylamine and aniline) over organic base catalysts.

以正丁胺为反应基质、TBD为催化剂，合成N，N′-二丁脲的最佳反应条件为：反应温度180℃，CO2压力10.0M Pa，反应时间10h，TBD摩尔分数5.0%；在此条件下，N，N′-二丁脲的收率为81.8%；红外光谱表征结果表明，合成的产物为N，N′-二丁脲。

If you are unfortunate enough to the lovelorn, please tell me, I will help you out, really, please contact me!

如果你不幸失恋了，请告诉我，我会帮助你摆脱困境，真的，请联系我啦！

China's plan to cut energy intensity by 20 percent and pollutant discharges by 10 percent between 2006 and 2010 is a case in point.

中国计划在2006年到2010间降低20%的能源强度和减少10%的主要污染物排放，就是一个这样的例子。