查询词典 catalytic

The results show that the catalytic activity is mainly affected by the acid strength and number of acid center.

对合成甲基叔丁基醚反应的几种沸石分子筛进行研究，认为催化剂的活性主要受催化剂的酸强度及酸中心数影响。

TsOH-SBA-15 had higher catalytic activity than sulfuric acid with the same number of acid sites.

结果表明，该催化剂对冰乙酸和正丁醇的酯化反应具有较高的催化活性。

Experimental results indicated that performic acid and hydroxyl radical produced in 30% H2O2-HCOOH-Fe(superscript 2+) were combined to oxidize model organic sulfide with desulfurization ratio of over 96%. Catalytic performance of the combination of Fe(superscript 2+) and formic acid was higher than thin of only formic acid.

实验结果表明：30%H2O2-HCOOH-Fe(上标 2+)产生的过氧甲酸和羟基自由基能迅速将模型有机硫化合物氧化，氧化脱硫率可达到96%以上，Fe(上标 2+)和甲酸的催化氧化性能明显优于单纯使用甲酸。

It is the first time that acid-base bifunctional catalytic mechanism to transesterification is proposed.

具有协同作用的酸碱双功能的催化机理属于首次提出。

The advantage of this process is to directly obtain acrylate through catalytic reaction of acetic acid and methanol.

本技术以煤化工基础原料合成气的基础产品醋酸和甲醇，经过催化反应合成丙烯酸，工艺技术的特点是可直接获得丙烯酸或丙烯酸酯。

Since about 1960,the leading route to acrylonitrile has been by catalytic reaction of propylene with ammonia and air.

大约从1960年起，获得丙烯腈的主要技术路线一直是利用丙烯与氨水和空气的催化反应。

The process of the catalytic oxidation of SO2 over activated carbon surface can be divided into three stages.

SO_2在活性炭上的氧化可分为三个阶段。

Anilido-imino nickel complex 1 {(C6H3Me2-2,6)N=CH-5-NO2-C6H3N (C6H3Me2-2,6)}NiBr was first synthesized, and its catalytic behavior toward polymerizations of norbornene and ethylene in the presense of methylaluminoxane were investigated in detail. The complex activated with methylaluminoxane exhibited high activities for norbornene polymerization.

首次合成了苯胺基亚胺镍配合物1{(C6H3Me2-2，6)N=CH-5-NO2-C6H3N(C6H3Me2-2，6)}NiBr，研究了其在助催化剂甲基铝氧烷的作用下对降冰片烯、乙烯的均聚以及对降冰片烯和乙烯的共聚的催化性能。

The apparent activation energy of catalytic reaction is determined to be 59.44 kJ/m...

用于茶叶中锰的测定，回收率均在99%~105%之间，相对标准偏差为2.1%。

In addition, the catalytic reaction of hydroxyl radicals also have a wide range of bacteria killing effect.

此外，催化反应产生的氢氧自由基还对多种病菌具有杀灭作用。

On the other hand, the more important thing is because the urban housing is a kind of heterogeneity products.

另一方面，更重要的是由于城市住房是一种异质性产品。

Climate histogram is the fall that collects place measure calm value, cent serves as cross axle for a few equal interval, the area that the frequency that the value appears according to place is accumulated and becomes will be determined inside each interval, discharge the graph that rise with post, also be called histogram.

气候直方图是将所收集的降水量测定值，分为几个相等的区间作为横轴，并将各区间内所测定值依所出现的次数累积而成的面积，用柱子排起来的图形，也叫做柱状图。