sodium methoxide
英
美
网络 甲醇钠; 甲钠; 甲氧基钠; 甲醇钠盐
双语例句
- Ring-Opening Polymerization of Ethylene Oxide Initiated by Sodium Methoxide
甲醇钠引发的环氧乙烷开环聚合反应过程 - In the function of sodium methoxide, several factors effecting on alcoholysis of urea by zinc oxide catalyst were obtained.
探讨了在甲醇钠作用下，氧化锌催化尿素醇解的影响因素。 - Compared with the activity of sodium methoxide, sodium ethoxide, sodium isopropyl, sodium tert-butoxide, The best base catalyst was sodium tert-butoxide.
比较甲醇钠、乙醇钠、异丙醇钠和叔丁醇钠催化活性，叔丁醇钠为最佳的催化剂。 - Sodium methoxide used as catalyst for the synthesis of methyl formate by carbonylation of methanol was studied, and effect of three kinds of promoter was investigated.
在间歇釜式反应器中，进行一氧化碳与甲醇羰基化合成甲酸甲酯的合成，考察甲醇钠碱性催化体系对反应的影响。 - By reacting isobutyraldehyde with diethyl oxalate using sodium methoxide as catalyst, 3-methyl-2-oxobutanoic acid, sodium salt was prepared by one pot.
采用甲醇钠催化异丁醛与草酸二乙酯反应，一釜法合成了3-甲基-2-氧代丁酸钠。 - Replacement of potassium hydride by sodium methoxide, replacement of hydrogen chloride by HCl-ethanol, and replacement of ether by toluene were in the improved procedure.
以甲醇钠代替氢化钾作为缩合剂，以盐酸乙醇代替氯化氢气体，以甲苯代替乙醚，对此工艺进行了改进。 - Budgetary estimate for the 600 t/ a synthesizing sodium methoxide with metal sodium, revenue and profit were calculated.
并对抚顺市化工研究设计院600t/a金属钠法合成甲醇钠装置项目进行了概算，同时计算了装置的税收及利润，最后分析了企业的盈利能力和偿债能力。 - The recovered methanol, with water content less than 0.02%, from the condensation effluent in a methanol tower with 40 theoretical plates and a reflux ratio of 3 can be reused to prepare sodium methoxide.
结果表明，缩合废液甲醇塔回流比为3，理论板为40时，回收甲醇中水的质量分数可降至0.02%，可复用于生产甲醇钠。 - Chemistry analysis of sodium methoxide and sodium formate
甲醇钠和甲酸钠的化学分析 - Results and conclusions The proportion of 1-methyl-1-thiosemicarbazide, oxalic diacetate and sodium methoxide was 1.0 ∶ 1.1 ∶ 2.0, and the yield was 60% under the suitable reaction condition.
结果及结论适宜的反应条件为1-甲基-1-氨基硫脲、草酸二乙酯、甲醇钠的量（摩尔）比例为10∶11∶20，其收率可达60%。 - We investigated relationships between the reaction and concentration of sodium methoxide or temperature by XRD analysis.
利用XRD为主要检测手段研究了甲醇钠的质量分数、反应温度等因素对反应的影响。 - Determination of Content of Sodium Methoxide and Its Solubility in Tetrahydrofuran by Micro-titration
微量滴定法测定甲醇钠含量及其在四氢呋喃中的溶解度 - A new method of preparing intercalated and amorphous kaolinite with sodium methoxide was introduced in this article.
利用甲醇钠强烈的夺氢作用，介绍了一种制备插层和无定形高岭土的方法。 - The supported alkaline catalysts were prepared using triethylamine and sodium methoxide as active components and using A, X and Y type molecular sieves, silica and organic polymer carriers as supports.
以三乙胺和甲醇钠为活性碱组分，以A，X和Y型分子筛及硅胶和有机高聚物担体为载体制备了负载型碱性催化剂。 - Tetrabutyl ammonium bromide and sodium methoxide were used as catalyst for the reaction.
四丁基溴化铵和甲醇钠构成该反应的双组份催化剂。 - Synthesis of methyl formate ( MF) by carbonylation of methanol with only sodium methoxide as catalyst exists some shortages, such as low activity, rapid loss of activity and short catalyst life.
以单一甲醇钠作为催化剂通过甲醇羰基合成甲酸甲酯，存在催化剂活性不高、易失活、寿命短等问题。 - An improved method of synthesizing trimethyl orthoformate through azeotropic distillation by taking sodium methoxide in methanol and chloroform as raw materials has been presented by the author.
介绍了以甲醇钠甲醇溶液与氯仿为原料，采用共沸蒸馏法制备原甲酸三甲酯的改进工艺。 - In this paper, Nitrobenzene, m-Nitrobenzoic acid, p-Nitrobenzoic acid were aminated by Vicarious Nucleophilic Substitution of hydrogen, using 4-amino-1,2,4-triazole in sodium methoxide and dimethylsulfoxide at normal temperature and pressure.
本文采用4-氨基-1，2，4-三唑为胺化剂，在甲醇钠和二甲基亚砜中对硝基苯、间硝基苯甲酸、对硝基苯甲酸进行VNS直接胺化来合成芳胺。 - The Exchange Reaction of α-Hydroxyisobutyric Acid Amide and Methyl Formate Catalyzed by Sodium Methoxide
甲醇钠催化的α-羟基异丁酰胺与甲酸甲酯的交换反应 - The status of R& D on methanol synthesis catalyst was reviewed. Sodium methoxide was used as the catalyst in the thermal decomposition of isatin 3-oxime, and tetramethylene sulfone was used as the solvent.
靛红3肟的热分解催化剂为甲醇钠，环丁砜用作溶剂。 - Structural changes of kaolinite in sodium methoxide solution were characterized by XRD, IR and TEM measurements.
利用XRD、IR和TEM分析了高岭石结构的变化。 - The catalytic system propylene oxide ( PO) promoted sodium methoxide ( MeONa) used for methanol carbonylation to methyl formate ( MF) in the liquid phase has been studied and reported.
报道环氧丙烷（PO）助催的甲醇钠催化剂体系用于甲醇的液相催化羰基化制取甲酸甲酯（MF）反应。 - In recent years, the demand for sodium methoxide has been increasing in medicine and pesticide in China, so the expansion of sodium methoxide production is imperative.
近年，国内医药、农药对甲醇钠需求量持续增加，因此甲醇钠生产的扩建已经是势在必行。 - The reaction in the Deacetylation was carried out in methanol/ sodium methoxide system. The synthesis method was better than other methods with the mild reaction conditions, simple and three-dimensional post-processing advantages such as selectivity, and the relatively higher production rate.
脱乙酰反应是在甲醇钠／甲醇体系中进行的，该合成方法同其他方法相比具有反应条件温和，后处理简单和立体选择性强等优点，且产率也相对较高。 - The alkaline process of sodium methoxide of chemical industry has many hazardous factors.
碱法甲醇钠的生产属于化工行业，在生产中有许多危险因素。