In a continuous process for reacting an organic compound with hydroperoxide in the presence of a catalyst, the reaction is carried out in a reactor assembly comprising at least two reactors connected in parallel.Ulrich MullerJoaquim TelesNorbert Rieber...
I. Du Pont De Nemours And Company Reaction with hydrogen in the presence of a catalyst of rheniumUS5068473 * 1990年10月17日 1991年11月26日 E. I. Du Pont De Nemours And Company Reaction with hydrogen in the presence of a catalyst of rhenium...
aThe conversion,or cracking,predominantly takes place in the vapour phase in the presence of a catalyst .This catalyst ,which is available as pellets or as a powder,has the ability to enhance the rate of cracking reactiona and selectively to promote certain types of reactions. 转换或者崩裂,在...
a你拨打的电话正在通话中, You dial the telephone is conversing on the telephone,[translate] athe reaction occurs between a dissolved gas and a liquid-phase reactant in the presence of a solid catalyst. 反应发生在被溶化的气体和液体阶段的反应剂之间在一种坚实催化剂面前。[translate]...
Catalytic reaction of olefin in the presence of osmium catalyst for aminohydroxylation 来自 Google Patents 喜欢 0 阅读量: 14 公开/公告号: US6350905 B1 公开/公告日期: Feb 26, 2002 发明人:KB Sharpless,V Fokin 摘要: Osmium-catalyzed aminohydroxylation reactions are accelerated and expanded in scope...
A process for the production of an aromatic carbonate comprises reaction of an aromatic hydroxyl compound with CO and O2 in the presence of a catalyst system comprising at least two metal compounds with preheating of at least a portion of the reaction mixture in a first apparatus prior to react...
We report evidence for the effect of very low magnetic fields on a biological reaction. The presence of magnetite particles (with permanent magnetic moment of 1 emu/g) in the assay had a 30-fold increase on the rate of reaction of horseradish peroxidase. The activity of this enzyme was eval...
The first ab initio and DFT studies on the mechanism of the MBH reaction show that the rate-limiting step involves an intramolecular proton transfer in the... D Roy,RB Sunoj - 《Organic Letters》 被引量: 100发表: 2007年 Trifunctional organocatalyst-promoted counterion catalysis for fast and ...
aIn addition, the properties of biodiesel produced were found to be comparable with those produced from conventional methanol-based reaction but suffers from long reaction time (5 h) and the presence of catalyst necessitates tedious separation and purification procedures. 另外,导致的biodiesel物产被发现...
Relative rate techniques were used to study the kinetics of the reactions of Cl atoms and OH radicals with ethylene glycol diacetate, CH3C(O)O(CH2)2OC(O)CH3, in 700 Torr of N2/O2 diluent at 296 K. The rate constants measured were k(Cl + CH3C(O)O(CH2)2OC(O)CH3) = (5.7 ± 1.1...