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单词 Catalysis
例句
1. Enzymatic catalysis involves the breaking and making of different chemical bonds.
2. TOF-SARS in catalysis TOF-SARS has applications in catalysis as an elemental and structural analysis technique.
3. Organic Synthesis, Organic Catalysis, Organic Structure Analysis, Green Chemistry.
4. Catalysis has increased the rate of reaction.
5. Catalysis may be either homogeneous or heterogenous.
6. The catalysis follows a hydroxy radical pathway.
7. The catalysis effect of sodium hypophosphite on the fabric crease-resistant finishing with citric acid was investigated.
8. The results show that the micellar catalysis is an effective way to realize the chloromethylation.
9. The applications of microbial cell immobilization, enzymatic catalysis in nonaqueous solvents and mixed culture in pharmaceutical industry were highlighted.
10. UV Raman spectroscopy and its applications in catalysis are introduced.
11. Italian chemist who worked on catalysis and developed a scheme for the synthesis of artificial rubber.
12. Diisobutylene was synthesized by the catalysis of molecular sieve[http://], and the effect of temperature and airspeed on the reaction was investigated.
13. The aqueous organometallic chemistry and catalysis have become more and more important in the study of "GreedChemistry".
14. The influences of additive sequence and phase transfer catalysis are investigated.
15. X-ray diffraction and spectroscopic techniques continue to provide important clues, leading towards an understanding of the remarkable specificity of enzymatic catalysis.
16. Thus, residue Cys 177 is identified as essential for catalysis.
17. However, nobody had made the conclusive step of considering the consequences of this, namely the chain of muon catalysis reactions.
18. Linkage of the addition reaction to the molecular mechanism of catalysis therefore depends on demonstration of sequence specificity.
19. In this study, a new idea that RDF is made with catalysis of alkali, alkali earth or transition metal salts. The addition of the catalysts is to low ignition and burn off temperature temperature.
20. The preparation process of trimesic from mesitylene by air in a liquid phase oxidation under normal pressure with the catalysis of cobalt acetate and sodium bromide was studied.
21. Indcating effective suppression of trimethylamine(TMA) format ion over the zeolites, which is due to the shape selective catalysis of zeolites.
22. The development of new molecular sieves, engineering development in the manufacture of molecular sieves and combination of zeolite catalysis with separation technology are also discussed.
23. In this paper, the latest advances in the application of silicoaluminophosphate ( SAPO ) molecular sieves to isomeric catalysis are reviewed.
24. Acid-base cooperativity is commonly invoked in enzymatic and catalytic antibody catalysis.
25. A rearrangement reaction of 3 - butyl phthalide to 1 - methyl - 5 - carboxyl - tetrahydronaphthalene under the catalysis of A1C13 by hydride transfer was observed.
26. The Benzyl acetate was prepared from benzyl chloride and sodium acetate by phase transfer catalysis.
27. Propyl glycidyl ether ( PGE ) was obtained from propyl alcohol and epichlorohydrin by phase - transfer catalysis.
28. Especially by the TS-1 modified with trimethylchlorosilane, much higher catalytic activity was achieved than by parent TS-1 zeolite in the phase-boundary catalysis.
29. In this paper, the synthesis technology of acylates under the catalysis of heteropolyacid and the polymerization reaction of acrylates retarded by heteropolyacid were studied and discussed.
30. This review deals with the recent progress on micellar catalysis.
31. At the same time, double carbonylational catalysis ability of the catalysis systems which are composed of the other ligands and cobaltous chloride is researched.
32. The corresponding reaction of acetaldehyde is subject to general base catalysis.
33. The design and construction of high-nuclear compounds have been the focus of recent research interest due to their potential applications in catalysis, magnetism and photochemistry eta.
34. Therefore, the application of hydrotalcite-like compounds and their derivate mixed oxides in catalysis is the research hotspot in recent years.
35. Allyl glycidyl ether was synthesized from allyl alcohol and epichlorohydrin by phase transfer catalysis.
36. The results showed that a kind of fast curing novolac for shell process whose softing point is reasonable was easily prepared by compound catalysis .
37. Thus, it show wide application prospects in the fields of absorption, drug retarded release, fire-retardant and catalysis etc.
38. A mathematic modelling of gas catalysis kinetics ofm phthalic nitrile chloration reaction is established based on the hypothesis and simplification of the reaction.
39. Mimic enzyme catalysis is a new challenging project in green chemistry.
40. The catalysis - acid leaching process of copper bismuth sulphide dregs is introduced.
40. is a online sentence dictionary, on which you can find nice sentences for a large number of words.
41. The immobilization of laccase is important for the fiber optic biosensor based on enzyme catalysis.
42. The synthesis of methyl cinnamate was performed by esterification of cinnamic acid and methyl alcohol in catalysis of potassium bisulfate under microwave irradiation.
43. Reaction of ketones with sodium diselenide and sodium hydrogen selenide under the catalysis of n-BuNH2 gave a moderate yield of diselenides in a "one-pot" fashion.
44. Alkyl dimethylamine is made from fatly alcohol and dimethyla - mine by one stage catalysis.
45. The present invention relates to selective hydrogenation process of methyl methoxybenzoate to synthesize anisic aldehyde, and belongs to the field of fine chemical catalysis technology.
46. The dioctyl glutaricate was prepared by esterification of octyl alcohol and glutaric acid separated from dicarboxylic acid in catalysis of sulfuric acid.
47. Objective To study the effect of catalysis in petrochemistry on neurobehavioral functions of workers.
48. The invention adds a newcomer for synthesizing high-performance polyisoprene by catalysis of rare earth catalyst in the prior art.
49. This is the lowest catalyst loading that has been achieved so far in enamine catalysis with low molecular weight catalysts for a broad range of substrates.
50. The research progress on sources, catalysis mechanism(), application and study level of the enzymes with acitivity on naringenin is reviewed.
51. Ionic liquid can be used as green solvent in homogeneous catalysis. This paper reviews the recent development of hydroformylation of olefin in ionic liquid.
52. Aiming at the existing problems of gas making with heavy oil, this paper suggests to use diesel oil as feedstock of cyclic catalysis cracking gas making.
53. The utility model discloses an oxyhydrogen catalysis combustion-supporting environmental-protection fuel economizer of a motor vehicle.
54. However , nanometer Co _ 2 O _ 3 and Y _ 2 O _ 3 show outstanding catalysis in TMO and REO.
55. Deodorizing methods include chemical, physical, analogous biological catalysis as well as catalytic oxidation types besides bacterial resistance.
56. Methods: Urinary iodine of the 426 early pregnant women was determined by chloric acid-digestion and arsenic-cerium catalysis.
57. Numerous applications of two phase catalysis to hydroformylation, hydrogenation and other organic reactions are also described.
58. For molecular-scale motors, simple surface catalysis as demonstrated in our nanorods may also be too inefficient to counter Brownian motion, whether or not the robot's motion is constrained.
59. The process includes hydrochloric acid pretreatment, acetone extraction, hydrolysis of astaxanthin esters by catalysis of basic ion exchange resin, and adsorption separation.
60. In the process of catalysis and synthesis of polyester polyhydric alcohol by MSA, the catalyst performance of MSA was hatter than sulphuric acid.
61. The process of production of L - phenylalanine by enzyme catalysis is introduced in detail.
62. The mechanism of MIECC, especially the microwave induced "athermal action" in bio catalysis systems is briefly discussed theoretically. The potential application of MIECC is prospected.
63. Catalysis of catalysis carrier in synthetic industry, the refining if gold.
64. In this paper, the optimized technological requirement of the synthesis of acrylate under the catalysis of heteropoly acid was gotten and polymerization retarder for acrylate.
65. Alkyl dimethylamine is made from fatty alcohol and dimethylamine by one stage catalysis.
66. Benzimidazolyl group exhibits catalytic activity in the way as intramolecular general-base catalysis in the hydrolysis of 3-(2'-benzimidazolyl)-3-hydroxy propionate.
67. This article aims at summarizing the development of research on synthesis of tributyl citrate and the catalysis of sulfonic acid, inorganic salt, solid superacid, heteropoly acid, rare earth compound.
68. In specific acid catalysis, the undissociated acids do not contribute.
69. The invention has the advantages of preparing simplicity, low cost, high stability, good controllability of surface coverage and so on, so can be used in domains such as adsorption and catalysis.
70. These phenomenons may root in the electrical catalysis induced by pyroelectricity .
71. The paper briefly describes the synthesis of P-butyl Calixarene Compounds, as well as its recognition, catalysis, molecular devices,[] and other applications.
72. This process catalysis by a series of enzymes and cofactors. These enzymes and cofactors all be called coagulation factor.
73. The catalysis and oxidation Coulomb method to measure organic Chlorides is introduced.
74. Non - oxidative aromatization of methane is significant in the fields of energy utilization and catalysis science.
75. A new method in which lactic acid was oxidized by liquid phase catalysis and selectively converted to pyruvic acid with yield up to 58. 2% was introduced.
76. The corn flour is hydrolyzed into glucose by sufouric acid. And after that the glucose, under the catalysis of metavanadate and sufouric acid, is oxidized into oxalic acid by nitric acid.
77. The imperfections of market economy often function as catalysis to such personality deficiencies as individualism, utilitarianism, selfish departmentalism and opportunism .
78. Debinding, an important technology of MIM, includes thermal debinding , solvent debinding , siphonage debinding , and catalysis debinding.
79. Dichloropropanol was synthesized by chlorination of glycerol with hydrogen chloride under catalysis of organic acids and self-made inorganic catalyst.
80. The catalytic effects of minerals on solution loss of metallurgical coke have positive and counter catalysis.
81. The development of research on synthesis of Butyl Butyrate and the catalysis of sulfonic acid, inorganic salt, solid superacid, heteropoly acid, enzyme catalysis compound are summarized.
82. In the methodological study, hirsutrin 3 and hyperin 4 were synthesized by phase transfer catalysis (PTC).
83. Latest advances in synthesis of silicoaluminophosphate ( SAPO )molecular sieves and their application in industrial catalysis were reviewed.
84. The degradation efficiency of photoelectrocatalysis is higher than that of the single photo- catalysis or electrocatalysis.
85. FCCU(fluid catalysis and cracking unit) is a highly non-linear, time variable, long time delay, intensive coupling, parameter distributed, indefinite and complex system.
86. Dynamic theoretical model for heavy water detritiation combined electrolysis catalysis exchange system was built to investigate the tritium space distribution and dynamic behavior.
87. The study on the function of chiral metalloporphyrin complex in host-guest chemistry, stereo catalysis and photoelectrochemistry in recent years is reviewed.
88. The adsorption of urea nitrogen onto dialdehyde cellulose (DAC) under catalysis of immobilized urease in gelatin (IU) was studied in batch system.
89. The development of IT is catalysis of management revolution of enterprise, and BPR brought about by it changed operational model of enterprise completely.
90. Ultraviolet visible diffused reflection measure showed that composite carrier widened TiO2 response range towards light, establishing the favorable foundation for photo catalysis reaction.
91. The butyraldehyde 1,2-propanediol acetal is synthesized from the acetalization reaction of butyraldehyde and 1,2-propanediol, and used iodine as catalysis.
92. This enzyme could quickly catalyze the oxidation of pyrogallic acid as a substrate, but exhibited relatively low catalysis activity towards catechol, hydroquinone and resorcinol.
93. The carboxyl group in the hydrosol polymers has a marked catalysis for the crosslinking reaction between the latexes and amino-resins.
94. The catalysis of resinic solid acid catalysts in catalytic distillation is studied for synthesis of methylal from methanol and formaldehyde.
95. Harness supramolecular constructs to preserve the integrity of chemically labile species while conserving sites for the catalysis of chemical reactions including product release.
96. The Catalysis effect of tertiary butyl-ferrocene and lead chromate etc. on RDX/AP HTPB propellant burning rate has been examined.
97. This paper studied the scheme and effect of organic compound chemical cleaning agent to mazut catalysis circulating water system when it run normally without shut - down.
98. The preparation of ethanolamine is mainly composed of aqueous ammonia and liquid ammonia methods, which belong to typical homogeneous catalysis and heterogeneous catalysis respectively.
99. The main applications of immobilized penicillin G acylase and lipase in industrial catalysis were introduced as well.
100. Since the first stable N-Heterocyclic carbene is found, there are many work done on exploring its basic chemical properties and catalysis application,[http:///catalysis.html] in particularly the homogeneous reaction.
101. Catalysis: Development of chirometallopor - phyrins as enantioselective oxidation catalysts of alkenes and sulfides.
102. The method is based on the catalysis of phenanthroline to the discoloring reaction of bordeaux R oxidized by potassium periodate in the dilute acetic acid solution.
103. The catalysis of heteropolyacidic . salt on the etherification of diethylene glycol with ethanol was investigated.
104. The future trend of research in base catalysis is discussed.
105. Channels for three phases (proton, electron and gas) on the catalyst surface are considered essential for the catalysis during the cell performing.
106. Fractionation system and absorption - stabilization system were reconstructed according to practical conditions in the refinery catalysis workshop.
107. The results indicate that ammonium ferric sulfate is possessed of good catalysis.
108. Methyl stearate is chosen as the model compound absorbed by 10 different samples of natural minerals, to investigate the catalysis of minerals upon the hydrocarbon generation of fatty acid ester.
109. Based onMEMStechnology and electrochemical detecting principle of bio enzyme catalysis, one biochip has been developed.
110. Nanosized zinc and cerium oxides (ZCO) having strong UV absorbility, lower photo catalytic and lower oxidation catalysis simultaneously is investigated.
111. Their combination provided a method to design and construct in molecular level catalytic active centres, which was established to be one of the important goals in the field of heterogeneous catalysis.
112. The FBS (fluorous biphase system) makes homogeneous catalysis and heterogeneous separation possible and easy to separate the catalysts dissolved in PFC (perfluorocarbons).
113. The diamyl glutarate was synthesized by esterification of n-amyl alcohol and glutaric anhydride separated from dicarboxylic acid by catalysis of silicotungstic acid.
114. With strong bases under ultrasonication and phase - transfer catalysis, the reaction of 7, 7 -dihalocarane and haloform can generate halogen exchanges.
115. The essay studies the synthetic methods of hexyl acetate by using acetic acid and hexyl alcohol as raw materials and iron trichloride as the catalysis agent. The yield is 93%.
116. The research was concentrated on the co catalysis effect and the related catalytic mechanism of strong acids, such as amino sulfonic acid, p toluenesulfonic acid and fluoroboric acid.
117. All the processes of the catalysis, cracking and hydrotreating thethe crude oil are related the filters.
118. Ten aryl chloroacetates were synthesized by liquid - liquid phase transfer catalysis.
119. The mechanism of chloromethylation reaction and the mechanism of micellar catalysis were further investigated.
120. Niobic acid and compounds containing niobium are applied in a wide range of catalysis fields for their unique acidic property and thermal stability.
121. Product use: catalysis, regeneration gas filtering, hydrogenation, oil filtering; ethylene, propylene, butadiene, toluene, dimethylbenzene, benzene, ...
122. A series of 4-arylidene-2-phenyloxazol-5-ones were synthesized by the reaction of aromatic aldehydes with hippuric acid under microwave irradiation without catalysis.
123. The catalysis of enzymes causes much more complexity for the isotopic fractionation under microbial actions.
124. The corrosion causes of the catalysis and desulfurization system for heavy oil were analysed through the performance comparison between MDEA and DIPA, and some countermeasures were proposed.
125. The studies on the thin films containing polyoxometalates have drawn more and more attention owing to their potential applications in luminescence, photochromism, magnetism, electrics and catalysis.
126. Two kinds of useful selenoxide reagents are synthesized via the oxidation of selenides by CAN under the condition of phase transfer catalysis.
127. The results showed that stannic chloride had strong catalysis for the esterification of high acid value oil with methanol, stannic chloride catalyst could be reused by recovery.
128. Cyanoethylation of eight alkyl ketones under catalysis of sodium ethoxide gave eight monocyanoethylketones in high yield.
129. The Cu - ben - tonite can adsorp xanthated ion directly, giving catalysis to its oxidization reaction.
130. The dynamic analysis of the catalysis of Methylene blue shows that the degradation of dye under high concentrated solution is first-order reaction.
131. This review describes recent advances in the synthesis of C_2-symmetric chiral bis (oxazoline) ligands and the utility of its metal complexes in the catalysis of asymmetric syn- thesis.
132. Dimethyl phosphonate reacted with acrylonitrile under strong base (sodium alcoholate) or BPO catalysis, and then reacted with malonic aldehyde to give a N-P type fire retardant.
133. The difference of gasoline and diesel yields between the composite and mechanical mixture was elucidated from the structure of composite zeolite and shape-selective catalysis of ZSM-5.
134. "The L1 ligase appears to use strategies of transition-state stabilization and acid-base catalysis similar to those that exist for natural ribozymes and protein enzymes,[] " he said.
135. Glycine was synthesized by phase transfer catalysis in the normal atmospheric temperature and atmospheric pressure.
136. The catalysis of big pore strong acid resin for 1, 4 - butanediol dehydration to tetrahydrofuran is investigated.
137. MFC is anew-fashioned bioreactor that is developed on the basis of electrochemical techniques and uses microorganism as catalysis to convert chemical energy of organic compounds to electric energy.
138. The aqueous organometallic chemistry and catalysis have become more and more important in the study of "GreedChemistry". This paper reviewed the recent progress in this field.
139. The FBC ( fluorous biphase catalysis ) is a new nonaqueous immobilization and phase - separation technique.
140. Bridged polynuclear structure exists widely in the active sites of the metalloprotein and metalloenzyme in organisms that makes a great impact on their physiology and catalysis.
141. Binuclear complexes containing metal-metal interactions have been extensively studied due to their unique structures and properties including catalysis and spectroscopy.
142. The use of zeolites in the field of multi-phase catalysis, characterization of zeolites , self-heating and modification of zeolites are summarized.
143. The application and research on the tungstic catalysts are reviewed in petroleum processing and petrochemicals , including hydrocracking, hydrofining, catalytic oxidation and acidic catalysis.
144. Knowledge in the fields of petrol chemistry , chemical engineering, catalysis, etc.
145. Methods Chalcone derivatives were synthesized from benzaldehyde derivatives and acetophenone by using weak alkali potassium carbonate as based catalyst in water via phase - transfer catalysis.
146. The affection of the amount of catalysis, reaction time, the ratio of hexanoic acid and alcohol was discussed.
147. Meanwhile, because of the simple preparation, the high catalytic activity and the environmental protection, heteropoly compound is widely used in the area of catalysis.
148. In certain cases, conformational entropy appears to play a role in cooperative binding and enzyme catalysis.
149. Pentachlorobenzene cyanide was synthesized by means of gas solid catalysis and chlorination using cyanobenzene and chlorine as the raw materials.
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