查询词典 ammonolysis

This article introduces manufacturing methods of taurine by means of sodium hydroxyethyl sulfonate ammonolysis acidification .

研究了羟乙基磺酸钠氨解酸化法生产牛磺酸的工艺，对其中的高压氨解反应过程采用二次回归正交设计实验方法进行了优化。

DL-Asparagine was produced by ammonolysis of maleic anhydride in the presence of N catalyst in a stainless steel autoclave.

在一内衬钛材的不锈钢高压釜中，采用自制的N催化剂，通过马来酸酐氨解反应合成了DL-天冬酰胺。

he pyrolytic properties of polysilazane, synthesized from ammonolysis of mixture of halosilanes, in N2 or NH3 atmosphere have been studied.

研究了由有机氯硅烷氨解制得的聚硅氮烷在N2与NH3气氛中的热分解特性。

METHODS:This compound was synthesize by steps of ammonolysis,hydrogenize,diazotization and coupling from 4-nitrobenzoyl chloride.

以对-硝基苯甲酰氯为原料，经氨解、氢化、重氮化及偶合四步反应得到了巴柳氮。

Through screening of lipases, lipase Novozym435 was found to show the highest activity and enantioselectivity for the ammonolysis of CHBE. The effect of different solvents on the ammonolysis was investigated.

经过对脂肪酶及反应溶剂的筛选，确定最佳脂肪酶及溶剂分别为Novozym435和二氧六环；并在该反应体系中考察了温度、底物浓度、酶浓度与摇床转速对反应的影响。

A reaction pathway for ammonolysis of O,O-dimethylphosphorochloridothioate without catalyst was proposed,based on the reaction mechanism of acyl halide ammonolysis ,and the pseudo-homogeneous reaction kinetics were founded.

模型表明：在反应前期，O，O-二甲基硫代磷酰氯浓度对速率影响很小，反应速率呈拟一级反应特征；但在反应后期，反应速率呈明显的二级反应特征。

Waste minimization in ammonolysis process of O,O-dimethylphosphorochloridothioate;2. An Investigation on the Micelle-Catalytic Hydrolysis and Ammonolysis of Carboxylic Acid Esters;3. The final product is generated by ammonolysis of the compound under high pressure.

以4-溴-1，8-萘酐为原料，用2，4-二甲基苯胺在醋酸中与之反应得到N-2′，4′-二甲基苯基-4-溴-1，8-萘酰亚胺，然后将NDNA在高压下用氨水进行氨解得到最终产品。

Dimethylhexane-1,6-dimethyleurethane is the key material for preparation of 1,6-hexamethylene diisocyanate by non-phosgene route. Our work mainly focuses on the study of the catalytic performances of metal oxysalts and metal oxides for the ammonolysis of DMC to HDU-M. Experiment effect showed the ammonolysis was omposed by two steps, in which the first step was easier to occur than the second.

中文摘要六亚甲基-1，6-二氨基甲酸甲酯是非光气合成六亚甲基二异氰酸酯的关键原料，本文主要对金属含氧酸盐和金属氧化物这两类用于碳酸二甲酯胺解合成HDU-M 的催化剂进行了初步研究并优化了工艺条件。

The optimal conditions determineded by experiments were as follow: chloracetic acid : sodium carbonate : isopropyl xanthate : ethylamine=l : 0.58 : 1 : 1.05, water usage is 30 ml/O.lmol chloracetic acid, esterification temperature was 80癈, esterification time was 2h, ammonolysis temperature was 70 C, ammonolysis time was Ih.

实验得出最佳工艺条件为：一氯乙酸：碳酸钠：异丙基黄药：乙胺=1：0.58：1：1.05，水用量为30 ml／0.1mol一氯乙酸，酯化温度80℃，酯化时间2小时，氨解温度70℃，氨解时间1小时。

Latest researches in the catalysts for synthesis of carbamate by ammonolysis of dimethyl carbonate;2. Progress in the catalysts for synthesis of carbamates by ammonolysis of dimethyl carbonate;3.4,4′-Methylene diphenyl carbamatewas synthesized by ammonolysis of dimethyl carbonate, a substitute of phosgene, and 4,4′-diaminodiphenyl methane with anhydrous zinc acetate as catalyst.

用碳酸二甲酯代替光气，以4，4′-二氨基二苯基甲烷为原料，在无水醋酸锌催化剂的作用下，经胺解反应合成了4，4′-二苯甲烷二氨基甲酸甲酯；测定了MDC的熔点；采用傅里叶变换红外光谱和氢核磁共振对产品结构进行了表征；考察了反应温度、DMC用量、反应压力、反应时间、催化剂用量对MDC收率的影响。

Do you know, i need you to come back

你知道吗，我需要你回来

Yang yinshu、Wang xiangsheng、Li decang,The first discovery of haemaphysalis conicinna.

1〕 杨银书，王祥生，李德昌。安徽省首次发现嗜群血蜱。