جمله انگلیسی با "catalysts" + تلفظ جملات

(1) and you will create catalysts for urban growth.

(2) activating them and turning cipkip and ink 4aarfs into catalysts.

(3) The trimerization of ethylene by homogeneous catalysts has been demonstrated

(4) The trimerization of ethylene by homogeneous catalysts has been demonstrated.

(5) However this scenario becomes unlikely using nanoparticlesized metal catalysts

(6) However this scenario becomes unlikely using nanoparticlesized metal catalysts.

(7) Some catalysts might be easily poisoned by heterocycles under prolonged reaction at elevated temperature

(8) Some catalysts might be easily poisoned by heterocycles under prolonged reaction at elevated temperature.

(9) Begin going up against the CPU utilizing catalysts to desert your adversaries and open cool autos and tracks.

(10) Enzymes are protein molecules in cells which work as catalysts.

جمله با "catalysts"

(11) Catalysts that speed the reaction are called positive catalysts.

(12) Catalysts that slow the reaction are called negative catalysts or inhibitors.

(13) However Hitler s personal distaste for tobacco was only one of several catalysts behind the antismoking campaign.

(14) Substances that increase the activity of catalysts are called promoters and substances that deactivate catalysts are called catalytic poisons.

(15) How fast the cracking process is and how long it takes for the end products to form are very dependent on the temperature and any existing catalysts.

(16) Some pharmaceutical companies now have teams that are dedicated to designing enzymes to make drugs more efficiently and with fewer toxic catalysts.

(17) You have regulation; information is transcribed; catalysts are made; stuff is happening.

(18) The carbon materials catalysts demonstrate good activity and stability at low temperature

(19) Carbon nanotubes ( CNTs ) were prepared from acetylene at 923 K with Ni as catalysts by chemical vapor deposition ( CVD ).

(20) The comparative study of these catalysts for the hydrochlorination of acetylene is described and the deactivated reason is discussed.

مثال برای "catalysts"

(21) The highly dispersed bismuth molybdate catalysts on silica were found to be intrinsically active but poorly selective to acrolein.

(22) Adipic acid is synthesized by oxidation hydrogen peroxide method with tungstate and peroxide heteropoly acid as catalysts.

(23) The adsorption on such well defined surfaces provides excellent models for more complicated practical catalysts.

(24) Synthesis of alumina aerogel via sol-gel has motivated a worldwide interest due to their application potentials in the high-temperature catalysts and high-temperature thermal insulation etc.

(25) 1. The results of determining the alkaline and alkaline earth metals in the treated gasoline showed there was no loss of metals from the catalysts.

(26) 1 The results of determining the alkaline and alkaline earth metals in the treated gasoline showed there was no loss of metals from the catalysts.

(27) The alkylation of aniline with isopropanol was studied over HY molecular sieve catalysts.

(28) This review deals with the recent progress in asymmetric synthesis using chiral polymeric reagents and catalysts for oxidation

(29) This paper reviews the development in the application of catalysts to the selective hydrogenation of alkynes and dienes.

(30) This paper reviews the development in the application of catalysts to the selective hydrogenation of alkynes and dienes. Development tr ends of catalysts are put forward.

جمله انگلیسی با کلمه "catalysts"

(31) The technical key points of it are amination catalysts and engineering scaling up.

(32) Presents technology processes and operation of the catalysts in VRDS and UFR/VRDS units.

(33) Transient kinetic modeling of then-butane selective oxidation to maleic anhydride(MA) over vanadium phosphorus oxide(VPO) catalysts is studied.

(34) The regioselective nitration of toluene and chlorobenzene with nitrates and supported nitrates on solid acid catalysts and supports in the presence of acetic anhydride is studied.

(35) This article reviews the study about heterogeneous noble metal catalysts for hydrogenation of aromatic compound in recent years.

(36) The select(?)ve synthesis of dimethylamine from ammonia and methylalcohol using the cation modified mordenite as catalysts on atmospheric pressure fixed bed have been studied.

(37) The synthetic processes of phthalic anhydride diglycol ester using sulfuric acid and methyl benzene sulfonic acid as catalysts

(38) Nanosized nickel based catalysts can be used to carry out the hydrogenation of styrol and benzophenone at normal temperature and pressure.

(39) A low-cost three-dimensional large pore HY zeolite was used in the liquid phase benzoylation of various aromatics with benzoyl chloride instead of classical homogeneous catalysts.

(40) Phosphotungstic acid and its salts were found to be efficient environmentally friendly catalysts for the synthesis of benzyl propionate.

جمله انگلیسی با "catalysts"

(41) The third part:Synthesis of bis(indolyl)methanes assisted by two phase transfer catalysts.

(42) The studies in the catalysts for dehydroisomerization of n - butane are reviewed.

(43) A series of multicomponent catalysts for preparation of methacrolein by oxidation of tertiary butyl alcohol were prepared.

(44) Influence of support and preparation condition on catalytic behavior of copper-based catalysts for one-step synthesis of butyraldehyde were studied.

(45) Copper - containing catalysts are the most suitable catalysts for producing 1

(46) The preparation of catalysts

(47) The preparation of catalysts

(48) The Greens were the catalysts of a necessary change in the European consciousness.

(49) But low hydrogen yields and poisoned catalysts soon had these systems grinding to a halt.

(50) The performance of the homemade double metal cyanation complex ( DMC ) catalysts non - stirred tank reactor heat exchanger.

جمله انگلیسی در مورد "catalysts"

(51) Heterogeneous catalysts are insoluble in the reaction medium.

(52) During the last decade new hydrosilylation catalysts

(53) The distillates are treated with catalysts to make hydrocarbon products suitable for applications ranging from high-test gasoline to coloring crayons.

(54) Homogeneous catalysts are compounds of metals that dissolve in the reaction mixture and which must be separated from it at the end.

(55) The Ni catalysts were obtained in situ during the reaction from the oxides as the precursors in which nickel species were homogeneously incorporated in the perovskite structure.

(56) 1. During the last decade new hydrosilylation catalysts

(57) The catalysts include homogenous acids bases and solid acidsbases.

(58) Hydrogenation-dehydrogenation and acidic functions of hydrocracking catalysts were characterized by the use of model compounds of toluene and n-octane in a microreactor.

(59) The slurry phase hydrocracking - hexyl - benzene was studied under the presence of dispersed catalysts in a micro reactor.

(60) Lower hydrogen sulfide concentration of the sulfurization process has great effect on the denitrification activity and decarbon activity of residue hydrotreating catalysts.

جمله انگلیسی درباره "catalysts"

(61) Many studies of catalysts for hydrogenation of natural oils have been made

(62) The modification of rare earth elements to palladium catalysts leaded to great promotion on both the activity and stability in selective gas hydrogenation of acrylonitrile to propionitrile.

(63) Hydroperoxide decomposition into radicals is accelerated by various catalysts

جستجو در دیکشنری EnglishVocabulary.ir

(64) The better separability is a good advantage for immobilization of molecular catalysts. The immobilized systems have an improved activity and regioselectivity compared to the homogeneous system.

(65) Silica-supported bismuth molybdate catalysts were prepared by impregnation in a highly dispersed state and by coprecipitation in a largely crystallized state.

(66) Three kinds of iron-based catalysts are prepared by impregnation

(67) 1. Other adjustments include a new intercooler and a high performance exhaust system with racing catalysts.

(68) The invention discloses catalysts for synthesizing perfluoroalkyl iodide

(69) The relationship between acid amount of the catalysts and activity of the isomerization of 1 - betene was linear.

(70) The catalytic activity and selectivity of the catalysts for n-pentane isomerization at ambient temperature were investigated.

جمله با کلمه "catalysts"

(71) Several zeolite catalysts were selected to convert 1 hexene to 2

(72) The conditions and results of the reaction of diketene with isopropyl alcohol in the presence of different catalysts are discussed and some experimental data are provided.

(73) It is pointed out that the one-step process catalyzed by solid acid catalysts will become the focus of research works for terpinyl acetate synthesis.

(74) BET shows that isobutanol as the liquid medium causes less change to the surface area of catalysts.

(75) The key problem of catalytic combustion is how to lucubrate the reaction mechanism and prepare the catalysts own low ignition temperature and high-temperature stable.

(76) Research results on mixed catalysts for the selective oxidation of isobutene(or tert-butyl alcohol

(77) The progress of synthesis of silica-alumina catalysts with the range of the pore diameter increases from micropore to mesopore and application of sol-gel method are reviewed.

(78) DSC and TPO were employed to study the stability of the support and the catalytic performances of several metal oxides catalysts in abating the carbon black particle microsome(PM).

(79) We found that in the 112 nanometer catalysts tested

(80) The catalysts on studying can divide into two kinds: the transition metal bifunctional catalysts and the nitride

جمله برای "catalysts"

(81) Non - noble metal catalysts used in CWAO process in recent years are summarized.

(82) This article reviews the study about heterogeneous noble metal catalysts for hydrogenation of aromatic compound in recent years.

(83) All petrol engines run on 91 octane unleaded fuel and are equipped with modern fuel injection and three-way exhaust catalysts.

(84) Nickel - based olefin polymerization catalysts are new - type catalysts

(85) 1. It is pointed out that the one-step process catalyzed by solid acid catalysts will become the focus of research works for terpinyl acetate synthesis.

(86) Ceria-zirconia solid solution was widely used in the Three way catalysts (TWCs) for its higher oxygen storage capacity (OSC) to alleviate the periodic fluctuate of the A/F.

(87) The chiral catalysts employed in the AD reactions are complexes of osmium tetroxide with chiral ligands.

(88) The chiral catalysts employed in the AD and AA reactions are complexes of osmium tetroxide with the chiral ligands.

(89) The factors that influence the catalytic activity of catalysts and the efficiency of catalytic ozonation are discussed

(90) Many of these compounds are coloured and paramagnetic (see paramagnetism) and (as do the metals themselves) often act as catalysts.

جمله سازی با "catalysts"

(91) The methyl- esterification reaction of low -methoxyl pectin with methylalcohol by the presence of some catalysts was observed .

(92) Condensation of phenol and chloral over HY zeolite catalysts was studied in detail.

(93) A series of supported tungsten phosphide catalysts were prepared by the method of temperature-programmed reduction of phospho -tungstate in hydrogen.

(94) Fuel Cells Johnson Matthey is the worlds leading supplier of platinum based catalysts for phosphoric acid fuel cells.

(95) The polyether polyols prepared by these DMC catalysts are of low unsaturation

(96) 1. A number of chemists had experimented with the polymerisation of ethylene using catalysts.

(97) The said promotor had good adaptability with various cracking catalysts.

(98) The reaction products of ethylene hydroformylation on the three kinds of catalysts were mainly propanal

(99) The main catalysts used are PTC

(100) The results show that catalysts have higher activities

جمله سازی با کلمه "catalysts"

(101) The grid has very strong inhibitory action on the back mixing of the granules above and below it and can improve the distribution of residence time of catalysts.

(102) The development of the catalysts and the catalytic processes in hydroformylation of olefins was introduced. The catalytic properties of cobalt complexes and rhodium complexes were compared.

(103) A series of hydroformylation catalysts were prepared by supporting Rhodium complex in the supporters modified by phosphotungstic acid.

(104) Several zeolite catalysts were selected to convert 1 hexene to 2

(105) They plan to pump a suspension of catalysts in steam and air or hydrogen

(106) This provides a good basis for assessing the performance and desulfurization result of the refining catalyst and cracking catalyst of the hydrocracker as well as the service life of the catalysts.

(107) One of the main difficulties encountered in catalytic cracking of shale oil is the poisoning effect of organic nitrogen bases on silica-alumina catalysts.

(108) The coke and sulfur on the catalysts has been removed effectively and active metals are not sintered on the catalyst surface after regeneration.

(109) They are only made possible by enzymes - biological catalysts that speed up their chemical reactions to a respectable level.

(110) The results show that rare earth solid superacid catalysts have high catalyst activity and stabilization.

چند جمله با "catalysts"

(111) Stannum tetrachloride was an excellent catalyst for synthesizing dibutyl maleate and had higher catalytic activity than other catalysts.

(112) TheMI - 07 system provides closed - loop control of stoichiometric air - fuelratio for accurate application with three - way catalysts.

(113) This paper has reviewed the present situation of the application of metallocene catalysts in homopolymerization and copolymerization of styrene.

(114) The synthetic processes of phthalic anhydride diglycol ester using sulfuric acid and methyl benzene sulfonic acid as catalysts

(115) The latest progress on the researches of zeolite superacid catalysts

(116) 1. The latest researches on the modification of solid superacid catalysts on the carrier are summarized

(117) This review deals with various polymeric superacid catalysts. Their classifications

(118) Catalytic theory of solid superacid catalysts and modern analysis methods for the catalysts

(119) Preparation and capability of solid superacid and correlative catalysts of oxid promoted by SO42- was summarized in this paper.

(120) The catalyst could be used for many times without any treatment and no pollution to environment. Comparing with the normal catalysts

کاربرد "catalysts"

(121) The research development in catalysts for Syndiotactic polymerization of styrene is re - viewed.

(122) The catalysts

(123) A series of supported Mo-based catalysts for methanethiol synthesis from high H 2S-containing syngas were investigated by kinetics and XPS

(124) The test method of the catalysts of trans-polyisoprene and synthetic rubber is introduced.

(125) The setting of mechanical specifications for catalysts should take into consideration the needs of the user.

(126) The chiral catalysts employed in the AD and AA reactions are complexes of osmium tetroxide with the chiral ligands.

جستجو در دیکشنری EnglishVocabulary.ir

(127) Platinum catalysts that are supported on nanoscale titanium dioxide

(128) A pulse technique is applied to kinetic study for disproportionation of toluene on mordenite catalysts.

(129) The performance of the three catalysts was studied in the catalytic combustion of volatile organic compounds (benzene

(130) 1. The reducibility of hydrocarbon-steam reforming catalysts has been studies by temperature programmed reduction (TPR) method.

متن انگلیسی در مورد "catalysts"

(131) Temperature-Programmed-Desorption (TPD) and Temperature-Programmed-Decomposition (TPDE) or Reaction (TPR) are common methods in the investigation of characteristics of catalysts.

(132) TPR results showed that the reduction ability of catalysts was determined by the calcination and composition.

(133) The catalysts were characterized by means of TPD

(134) These catalysts offered not only increased efficiency and turnover rate but also improved regioselectivity and stereo - selectivity.

(135) The selection of catalysts for intermediate layer was discussed from the view point of chemical kinetics.

(136) A series of supported Mo-based catalysts for methanethiol synthesis from high H 2S-containing syngas were investigated by kinetics and XPS

(137) Experiment results indicated that HZ-type solid acids were ideal catalysts for direct esterification of straight chain carboxylic acids and primary alcohols.

(138) The select(?)ve synthesis of dimethylamine from ammonia and methylalcohol using the cation modified mordenite as catalysts on atmospheric pressure fixed bed have been studied.

(139) The research advances of the chiral ligands metal complexes catalysts used in asymmetric 1

(140) Monochloroacetic acid was prepared by using acetic anhydride or sulfur as catalysts to chlorinate acid respectively.

مثال با "catalysts"

(141) The reaction mechanism in tartrate modified catalysts and cinchona modified catalysts are also discussed.

(142) The reaction mechanism in tartrate modified catalysts and cinchona modified catalysts are also discuss...

(143) This paper focuses on the synthesis of cinchona alkaloid catalysts which contains rigid polybenzene moieties and their application in asymmetric catalytic reactions.

(144) Alumina is a common carrier for catalysts. A alumina can be prepared by spray drying process.

(145) The results show that catalysts have higher activities

(146) Disclosed is a curable composition which exhibits excellent curability while using a catalyst other than organic tin catalysts.

(147) Study progress on cyclization of citronellal to(-)-isopulegol over catalysts is reviewed.

(148) The causes for deactivation of the catalysts for liquid-phase hydrogenation of furfural to furfurol were investigated by means of XRF

(149) Special solvents can be used to decarbonize and desulfurize waste catalysts to replace the high-temperature roasting pretreatment process.

(150) The preparation and catalytic performances for thermochemical decomposition reaction of H_2S to H_2 of several catalysts of iron sulfide were investigated.

جمله سازی با کلمه "catalysts"

(151) Metal catalysts supported on WO3 prepared via co-precipitation don't increase the conversion of methanol decomposition reaction in contrast to metal catalysts without WO3 via co-precipitation.

(152) The key for isobutane dehydrogenation is to synthesize non - noble mental catalysts.

(153) Amorphous alloys were used as catalysts for the dehydrogenation oxidation of diethanolamine to produce iminodiacetic acid.

(154) The performances and application status of several cyclohexanol dehydrogenation catalysts in home and abroad are compared.

(155) Recent progress of the catalysts

(156) Activated carbon - supported catalysts are excellent catalysts for denitrification of flue gas temperature.

(157) Then the catalysts of high activities were selected to be used in the preparation of mixed dibasic acid dimethyl esters(DBE).

(158) The latest researches on the modification of solid superacid catalysts on the carrier are summarized

(159) The catalysts were further characterized by XRD

(160) Recent achievements in ethylene oligomerization by using transition metal complexes as catalysts are reviewed with emphases on the description of novel catalyst systems.

تاپیک سنتز برای "catalysts"

(161) The esterification reaction of propionic acid with n-pentanol was studied by using novel aluminophosphate and silicoaluminophosphate molecular sieves as catalysts.

(162) A number of chemists had experimented with the polymerisation of ethylene using catalysts.

(163) Other adjustments include a new intercooler and a high performance exhaust system with racing catalysts.

(164) The application of acid catalysts in the coupling reaction of formaldehyde and methyl formate to form methyl glycolate and methyl methoxyacetate was investigated.

(165) The catalytic properties of these catalysts in hydrogenation of diacetone alcohol and their electric catalytic properties as a fuel cell electrode were studied.

(166) Advances in the technologies and catalysts for heavy distillates and gas oil hydrotreatment were reviewed.

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