catalyst

As you know, and you'll hear again in this class, catalysts just affect the kinetics.

One of the catalysts for the upward trend in wages is demographic, with a falling number of young Chinese entering the labour market.

Recently developed heterogeneous catalysts are supposed to be the kind of the most promising catalysts.

Zhang said the catalysts have no direct impact on the environment as long as the doses are kept within 0. 5 gram per square kilometer.

Until recently the filter residue of the effluent from the factories of catalysts for oil refining has been a pollutant to the environment.

The polymerization of ethylene oxide was carried out with catalysts of many components whose main components were organometallic compounds.

The Shanghai market was one of the catalysts earlier this year.

Enzymes are protein molecules that act as catalysts for all chemical reactions within the body and are necessary to sustain life.

The catalysts need not to be removed and have no effects on the characteristics of the product, outer appearance and storage.

And this is usually done over catalysts, like an iron oxide catalyst or something.

The experimental results show that Sudanese high TAN crude oil is very easy to crack over the catalysts.

The active component of many supported catalysts will disperse spontaneously onto the surface of the carrier.

Metallocenes first appeared in the early 1950s and have been used as antiknock agents, catalysts, and reducing agents.

During the country's economic rise, they were the custodians of the nation's wealth and the catalysts to its industrialisation.

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

Recently, transition metal oxide catalysts used for oxidation of CO and hydrocarbons at low temperature have attracted much attention.

Industrial catalysts lack this specificity of reaction, and so cannot be used for modifying specific components of a food system.

In a highly commercialized society, advertising is one of the catalysts of commercial activities.

The type of catalysts with a low startup, high activity and quick deactivation was suggested to be used in the condensed mode operations.

The present invention provides for novel poisoning-resistant catalysts used for automobile exhaust gas treatment systems.

The aging catalysts produced by this method are very close to those of industrial balance-catalysts, the distributing and qual . . .

Purpose : A material for preparation of other rubidium salts, also used for catalysts, special glass and ceramics etc.

The influence of three catalysts used to this study on the high temperature decomposition is independent of the grain size of AP.

Ammonium thiosulfate as a novel sulfiding agent was used for presulfidation of hydrodesulfurization(HDS) catalysts.

The smectites are the most effective of the clay minerals as catalysts of these organic reactions.

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

A study on relationship between the miner alogical characteristics and catalytic properties of catalysts should be strengthened.

There are innumerable stories of how masters worked like this with negative experiences and transformed them into catalysts for realization.

The components of the decomposition products and the choice of catalysts are the main focus of this study.

The application results validated that FCC catalysts designed and developed by SINOPEC are suitable to be used in oversea refineries widely.

Another is that "established" civil society organizations are not always the best catalysts for overturning autocratic rule.

The catalysts were used for direct synthesis of hydrogen peroxide from hydrogen and oxygen.

synthesis of dibenzyltoluene by solid mixed catalysts WAS an advanced, rational, and prospective process.

Plastics from Sugar New catalysts convert glucose into a valuable chemical feedstock.

Carbon deposition (or coking) is one of the principal factors that may deactivate the catalysts.

Activated carbon fibers as a third-generation activated carbon were a new type of highly efficient catalysts and adsorbents.

The advantages and disadvantages of different supported platinum catalysts were discussed as well.

Solid acid catalyst is a main aspect of catalyst development. Ion-exchange resin is one of solid catalysts used widely.

Catalysts enhance chemical reactions by increasing the rate of reaction without being consumed themselves.

Progress on research of novel doubly-bridged metallocenes and their application as catalysts used in olefin polymerization were reviewed.

There seem to be two catalysts.

The explicitly stated reason for this study was to compare the quality of catalysts supplied from various manufacturers.

The features and future perspectives of these catalysts have been reviewed .

Umicore is one of the world's leading producers of automotive catalysts and the leading producer of catalysts for diesel engines.

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

Garment major heavy metal on support from some of the dyes used in the dyeing process, oxidants and catalysts.

Research generalization of these green synthesis process and the corresponding catalysts is reviewed in this paper.

The industrialization prospect of these catalysts and the research directions are also discussed.

It was suggested that the experiment and selection of promising catalysts developed in the recent years should be enhanced.

Research of the sulfur transfer catalysts and materials which can be used in FCC unit to reduce sulfur in FCC naphtha is described.

The short-range ordered structure of the catalysts was also illustrated with a supported bimetallic catalyst as an example.

The leaf consists of a thin, flat, three-layered silicon solar cell with catalysts bonded to both faces of the silicon.

In addition, the volatile substance comprises at least two catalysts with different boiling points.

Nucleic acid catalysts are a novel tool in molecular biology, but its stability and activity in vivo need to be further improved.

Enzyme: Any of numerous proteins or conjugated proteins produced by living organisms and functioning as biochemical catalysts.

Combustion Characteristics ; Manufactured Carbon and Graphite Products ; Catalysts.

Metallocene ligands, metallocene compounds and metallocene catalysts, their synthesis and their use for the polymerization of olefins.

Designers are catalysts for bringing people and communities together for the betterment of society as a whole.

Study on the solid catalysts for catalyzing transesterification to produce biodiesel was a focus at present.

Compared with inorganic catalysts, the ion exchange resin as catalysts shows excellent catalytic performance and could be readily recycled.

The catalytic activity and selectivity were little influenced by the loading amount in the cases of the coprecipitated catalysts.

Physical-chemical properties, structural characterizations and reaction mechanism of catalysts were discussed.

The refining affecting was tested to several catalysts of nucleation, the cobaltous aluminate was selected as a effect refining agent.

We would also note BRC retail sales and industrial production as potential data catalysts to a weaker GBP, should they soften as expected.

XRD and TEM show that the prepared catalysts possess high thermal-stability up to 923K.

A crystalline modification can be made by synthesis with stereospecific catalysts of the Ziegler type.

The synthesis of many high activity chiral metallocene catalysts greatly impels the research of asymmetric synthesis.

The simple catalysts for the split are cobalt metal, phosphate, and an electrode placed in water that when charged produce oxygen.

If the new catalysts have "even a modicum of success, it would be big news, " Sabourin says.

The latest advances of the immobilized catalysts which can be easily removed were also introduced.

Meanwhile, XRD and TPR techniques are applied to character structure and properties of the catalysts.

An important consideration in determining a suitable mechanical test for catalysts is the actual dynamics of the catalyst during operation.

Catalysts under low temperature accelerate the breaking capabilities of ammonium persulfate (APS), enzyme and encapsulated breaker.

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

Other researchers have worked for decades to devise catalysts and the right reaction conditions to carry out this conversion.

Job Description: Responsible for the trial and inspection procedure of the catalysts and supports produced.

Catalysts may be gaseous, liquid, or solid; they may be inorganic compounds, organic compounds, or complex combinations.

Furthermore, we discuss the catalytic mechanism of these catalysts in brief. In the end, the prospects for the futher works were proposed.

Homogenous catalysts have rather high oil conversion. However, the separation of waste catalysts brings about some environmental problems.

The results provide the evidences for the industrialization application of the new NO oxidation catalysts.

Catalysts have to be bases, but phosphorus-based ones are toxic to end products.

In plant cells, natural pigments are used to absorb sunlight, while catalysts then promote the water-splitting reaction.

The nano-sized Fe3O4 catalysts after used for several times and recycled still remained a high activity.

It was shown that existing domestic techniques could meet the requirement on regeneration of different catalysts.

Several etherification processes and catalysts for the synthesis of tertiary alkyl others from alcohols and iso olefins are reviewed.

Recently, the catalysts for ammonia synthesis with higher stability, higher activity and lower cost have received considerable attention.

In commercial co-precipitated copper-based methanol synthesis catalysts, copper is known to be the active component [3].

Hence, catalysts can deform periodically balancing between the capillary force and the congregate force.

Improvement measures and synthesis processes of acetamidine hydrochloride from nitrile over acid catalysts were reviewed.

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

Major export products are methyl ethyl ketone, wax products, catalysts, while contract oil processing catalysts for processing business.

Catalysts are also being used to avoid the production of unwanted by-products.

It mainly introduced the catalytic degradation of polystyrene and drew a conclusion that degradation products vary with different catalysts.

Hydroperoxide decomposition into radicals is accelerated by various catalysts, notable the transition metals.

Application status and trends in hydrodesulfurization (HDS) and olefine hydrogenation catalysts are reviewed.

Initial catalysts included the renminbi's steady appreciation against the dollar and higher labour and raw materials costs.

The performance of the catalysts is the key factor in industry application of the natural gas catalytic combustion technology.

Supported Pt nanocluster catalysts for propane dehydrogenation were prepared by combining sol-gel method and chemical reduction method.

Attrition -resistance and catalytic properties of FCC catalysts prepared by different processes were investigated.

The research is involved in heat resources, fluorinating agents, solvents, phase-transfer catalysts, side reactions and kinetics, etc.

The second goal of this proposal is to investigate the column internals, i. e. , the layout of solid catalysts in the column.

Tests and commercial application showed that LIP catalysts exhibited higher activity stability and good resistance to attrition .

The personal computer and the internet have changed both personal and business environments so they are catalysts for a paradigm shift.

The influence of reaction temperature, used solvents and catalysts on the prepolymerization reaction was investigated.

These catalysts could effectively improve the bleaching efficiency of hydrogen peroxide and lighten the decreasing of pulp viscosity.

Allyl groups are removed by isomerization to the vinyl others with rhodium or palladium catalysts, followed by acidic aqueous hydrolysis.

At best, they serve as catalysts for reengineering organizational development processes and infrastructure.

The amine hydrochloride is subsequently reacted with acetylene in the presence of mercury free catalysts to produce vinyl chloride.

The Co-based catalysts have attracted increasing attention due to their high activity, selectivity and performance stability.

Chemical companies are also working on ways to cut the percentage of rare earths in catalysts while preserving the catalysts' effectiveness.

The identification of potential catalysts is therefore an integral part of the research process.

Finally, the influences of different catalysts on TEGDN gun propellant combustion properties were investigated.

As a new-type catalyst, monolithic catalysts have better mass transfer performance and lower pressure drop.

Catalysts are used to facilitate chemical reactions without being consumed or altered in the reaction.

The mechanism of the alkylation reaction and the properties of solid acid catalysts for the reaction are discussed.

The physical body has built up the catalysts of so many lifetimes into habitual, unskillful patterns.

It provides a glimpse into the vast chiral lanthanide complexes that are potential catalysts in MPV reactions.

The effects of reaction conditions and catalysts surface acidity on esterification reaction were investigated.

catalytic wet chlorine dioxide oxidation(CWCDO), loaded catalysts, impregnated method, printing-dyeing and organic-pesticide wastewater.

It has many wide applications, such as the electronically conductive adhesives, ceramic materials, catalysts and electrode materials.

The research results of catalysts for the synthesis of plasticizer DOTP from waste PET by alcoholysis method are summarized.

Synthesis and applications of catalysts, polymer synthesis, nano- catalysis materials.

Reaction character, reaction mechanism of solid acid catalysis and requirements for solid acid catalysts used are discussed.

Activity of the zinc oxide catalysts was tested and the transesterification condition investigated.

It is an important path to developing further tungsten products that study and develop catalysts containing tungsten.

Apple's iPhone and iPad, to name just two products, essentially were catalysts for the entire smartphone and tablet industries.

The oil transesterification catalysts include usually used acid-base catalyst, solid base, lipase, iodine, metal complex, et al.

Supported noble metal catalysts showed high catalytic activity for aromatic hydrogenation at low temperature.

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

catalysts that when exposed to water and ultraviolet light, accelerate a chemical reaction.

In this paper, the catalysts, carriers and reactors in producing maleic anhydride by oxidation of cyclopentadiene were reviewed.

In this paper, the research of catalysts of ethylene oligomerization is reviewed, focusing on zirconium, iron, nickel catalysts.

The effects of catalysts on the bonding processing property and bonding strength of polyurethane adhesive were studied in this article.

The nitrogen poisoning mechanism of FCC catalysts and the catalytic conversion of nitrogen-containing compounds are summarized.

By compared with the method without catalysts also studied the factor that affect this reaction from the aspect of reaction mechanism.

The recent progress and application study of supported heteropoly acid catalysts are reviewed.

The strength testing of extruded catalysts is complicated by three factors when compared to the testing ring formed catalysts.

The report indicates that 10 GE and data center will be catalysts for growth during the next few years.

However, dendrimer catalysts are not easily synthesized and rare earth Lewis acid catalysts are easily deliquescence.

In addition, the current problems and future research directions of the supported single-site catalysts have been pointed out.

In the next two iterations I will build on these semantics and dig deeper into known inhibitors and potential catalysts.

Photosynthesis, though, is so violently reactive that the catalysts involved break down every 30 minutes.

The resultant supported palladium-gold catalysts have increased activity and stability in the acetoxylation.

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

The active phases of catalysts were investigated in ordet to explore the excellent catalytic properties at high temperature.

Toluene nitration was carried out with supported heteropoly acids as catalysts and N2O5 as nitrating agent.

From abroad aspect, precious metal and non-precious metal are introduced for the two typical catalysts.

Many processes that are essential to the chemical industry use heterogeneous catalysts.

Project management training courses are good catalysts for learning, but apprenticeship is a necessity.

However, powdery catalysts had higher efficiency than disc ones to facilitate the graphite transition of carbon to diamond.

The effects of tridentate ligand structure, central atom, co-catalyst and supported on property of catalysts are presented.

Application of microwave in preparation and modification of catalysts or catalyst carriers were reviewed.

But the bounce has come despite any obvious improvement in the main catalysts for the markets' bout of nerves.

The prepared compound has extensive application prospect in the fields of catalysts, sensors, solar batteries, medicine and the like.

The recent progress and applied study of supported heteropoly acid catalysts were reviewed.

Compared with artificial catalysts, enzymes are wrapped around a relatively limited range of metals at their core.

Latest advances in the gaseous phase catalytic synthesis of difluoromethane and the preparation of catalysts are summarized.

In the experiments were used three pulverized coals and its chars and bituminous char with appended catalysts as reburning fuel.

The complexes of above mentioned ligands with "soft" and "hard" acid as catalysts for ATP-hydrolysis have been investigated by 31PNMR.

Variance analysis shows that the type of catalysts is the major factor influencing the yield of target product.

The principle of microwave induce catalytic reactions and the demand of induced catalytic reactions to catalysts and supports.

Recent progress in improving the sulfur resistance of noble metal aromatic saturation catalysts is reviewed in this paper.

The waste catalysts can also be made into micro-fertilizer or used as a desulfurizing agent.

This article reviews recent advances in polymer-supported Pd catalysts for heterogeneous C-C coupling reactions.

These gases are significant catalysts of global warming, which could trigger severe changes in weather patterns.

The influences of the calcinations furnace's structure type on the performance of the integrated methanol catalysts are discussed.

The optically active bisphosphinylalkanes thus obtainable are suitable for use as ligands for preparing chiral transition-metal catalysts.

Hexaaluminate catalysts are considered as the most favorable catalysts for the natural gas combustion.

A new method to fabricate polymer-dispersed liquid crystal (PDLC) films adopting complex catalysts system was devised.

The use of Lewis-acid catalysts in modern organic has been studied extensively during the last decade.

The catalysts comprise a vinylpyridine polymer and a titanium zeolite.

The research status and application progress of the use of zeolite as catalysts in ethanol dehydration to ethylene (ETO) is reviewed.

Compared to blank sample, the resistivities, bending strengths and the friction properties of the samples with catalysts are measured.

The research status and development of spent refinery catalysts treatment and utilization both at home and abroad were reviewed.

The methods of regeneration and preventing deactivation of catalysts are reviewed briefly .

Catalysts that lower markedly the activation energy of the reactions are required .

ICTs also act as catalysts in accelerating progress towards meeting the Millennium Development Goals.

A new device absorbs sunlight (blue) and sends that energy to catalysts that split water (green) and generate hydrogen gas (black).

Mainly used in the production of other chemicals and the manufacture of catalysts.

Set adopt painter copperizing of catalysts, and according to the size of the box, using different models of the flat wire.

mechanism was proposed for the synthesis of propylene glycol methyl ether over such type of catalysts.

Develop diagnostics and performance procedures for evaluation of catalysts from engine testing and the field test.

Process routes and catalysts for the synthesis of dimethyl carbonate (DMC) from urea are reviewed.

Several mineral materials were selected as catalysts for activity evaluation in comparison with the effect of quartz sand pyrolysis.

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

Through studying the technology of "S-RHT" catalysts grading combination, the most optimized solution is chosen.

METHOD: Phasetransfer catalysis method and screened phase transfer catalysts were used experimentally.

The effect of various esterification method, composition of catalysts and molecular weight of polyether on defoam ability were also studied.

The industrial applications of such catalysts are prospected.

The first catalytic converters were called conventional oxidation catalysts.

Solid catalysts and its packed bed are widely applied in chemical industry.

Catalytic performance and demerit in ETO of different types of zeolite catalysts are compared.

When the oil price fell, food shortages and fury at the privileges of the elite became catalysts for change.

The effects of dosage ratio of raw materials, catalysts and reaction temperature on the products were studied.

The temperature of calcine is the maximal influencing factor for catalytic activity of catalysts.

The catalytic specialities of ring enlarging catalysts were also discussed briefly.

Most hydroprocessing catalysts are commercially manufactured with the active metals in an oxidic state.

People who act as catalysts and assume the responsibility for changing process are called change agents.

The main catalysts used are PTC, strong acidic ion-exchanging resin, solid super acid, etc.

As catalysts of new ideas, German universities lag behind American and British ones.

The research and development of high efficiency catalysts and green medium are important research contents of future green chemistry.

Naturally, different catalysts will have their own proper reduction schedule.

The invention is directed to iridium oxide based catalysts for use as anode catalysts in PEM water electrolysis.

After sulfur injection was restored, the activity of catalysts resumed rapidly and the conversion rate rose back.

and the mechanisms of hydrogen transfer in the presence of hydrogen-donor solvents and catalysts are mainly discussed.

Three kinds of light oil were cracked as feedstocks on regenerated zeolite catalysts in a laboratorial fixed fluidized bed reactor.

The synthesis of diphenylethane with these catalysts and their catalytic performance were investigated.

This paper elucidates the present situation of research and development of solid acid catalysts for the alkylation of isobutane with butene.

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

The catalysts are valuable for making propylene oxide from propylene and hydrogen peroxide.

Researches in propanediol methyl ether synthesis catalysts were reviewed in this paper.

The toluene was oxidized to benzaldehyde in subcritical water by using hydrogen peroxide and without any catalysts.

The research progresses of cleaner catalysts used instead of sulfuric acid in the nitration of aromatic hydrocarbons are reviewed.

The IBM researchers turned to organic catalysts, whose design is similar to biological enzymes.

The application of supported catalysts in the oxidation of olefins to aldehyde and ketones was reviewed.

Catalytic cracking, in which silicon compounds are used as catalysts to aid the process of decomposition, gives higher octane petrol.

USES: Mainly used in making optical glass and fiber, It is also used in ceramic industries and catalysts etc.

The pores in the expanded graphite, which can load catalysts, are physical base for growth of carbon nanotubes.

We and others are now exploring chemical ways of copying genetic molecules without the aid of catalysts.

BASF employs synthetic inorganic chemists to develop new catalysts and pigments.

Acid catalysts play a predominant role in organic synthesis and transformations.

The evaluation methods for coke factor and gas factor of FCC equilibrium catalysts were discussed.

The activities of the catalysts and their dependence on run time were compared.

In this paper, research and development of Pd metal recovering from spent catalysts have been reviewed.

The interaction between component and support of amination catalysts has been investigated.

The specific surface area of catalysts was decrease with the increase of Mn or Fe substitute content.

The present invention relates to the use of insect esterases or lipases, or mutants thereof, as catalysts in biotransformation processes.

In spite of the reducing usage of ionic liquids, immobilized ionic liquid catalysts presented obviously improved activity.

Rare Earth catalysts with Silicon carbide honeycomb support were prepared.

In this paper, the Ni complexes catalysts, water-soluble nano Nicatalysts and Ni-B amorphous alloy catalysts were studied respectively.

In this study, the catalysts were prepared by using dipping method for carbon particulate oxidation from diesel soot.

The key for DBFC commercial application is to depress hydrogen evolution and reduce costs of anode catalysts.

The use of water as a solvent and of catalysts also reduces waste.

Within its active protein are catalysts that contribute to the regeneration of cells.

Are big companies the best catalysts of innovation, or are small ones better?

Finally some suggestions about the developing direction and the indigenization of SCR de- NOx catalysts are put forward.

TheMI-07 system provides closed-loop control of stoichiometric air-fuel ratio for accurate application with three-way catalysts.

In addition, the structure and properties of these catalysts were characterized by XRD, N2 isothermal adsorption-desorption, H2-TPR etc.

With suitable catalysts, syngas can be turned into fuel.

Being as catalysts, several transition metal of compound can be used to air-blowing asphalt, such as iron, cobalt and manganese.

The goal is to direct molecules to perform as catalysts and create long-range order.

The activity of catalysts, which were deactivated in the presence of water, was partly retrieved by eliminating coke.

Ni contents coud be controlled and the catalysts with high surface areas could be prepared by chemical mixing procedure.

The said promotor had good adaptability with various cracking catalysts.

They don't understand movements going viral, with social networks acting as catalysts.

You consider large volume commodity catalysts where often the profit margins are slim.

The processes and catalysts for removal of aromatics contained in diesel oil are reviewed.

Arsenic in crude oil could reduce the activity of catalysts or even deactivate the catalysts.

Purpose: Use in analytically reagents, catalysts.

Status and technological level of ex-situ regeneration techniques for oil refining catalysts were reviewed.