Examples of 'active catalysts' in a sentence
Meaning of "active catalysts"
active catalysts: substances that accelerate a chemical reaction without being consumed in the process
How to use "active catalysts" in a sentence
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active catalysts
It is mainly concerned with a method of preparing active catalysts.
Active catalysts were prepared from the chromium pyrrolide complexes as follows.
Bismuth compounds are particularly active catalysts.
Ruthenium forms more active catalysts that allows milder operating pressures.
This being a particular problem when highly active catalysts are used.
These more active catalysts are particularly preferred in the second stage reaction.
Many examples reported corroborate the composition variety of the active catalysts.
Less active catalysts are thus operated at higher temperatures to achieve desired productivity.
All of the materials described in this review are used solely as thermally active catalysts.
More active catalysts also permit the producer to reduce batch times and increase productivity.
Cyclopentadienyl complexes of zirconium form very effective and active catalysts with aluminoxanes.
They are described as highly active catalysts for ring-opening metathesis polymerisation.
Aluminum phosphate supports are similar to silica supports in that they form highly active catalysts.
As a result, more active catalysts can be used.
The supporting process has however the disadvantage of generally leading to poorly active catalysts.
See also
Generally, the most active catalysts are those with the lowest pKa values.
Many combinations of procatalysts, co-catalysts and selectivity control agents produce active catalysts.
Much research has been conducted on active catalysts and on techniques for the introduction / use thereof.
The thus obtained pre-polymerized catalyst components allow to obtain highly active catalysts.
The most frequently used active catalysts are imidazoles, tertiary amines and boron trifluoride based complexes.
Generally, where the catalyst is copper, bidentate or multidentate nitrogen ligands produce more active catalysts.
For different sanitisation media, there may be different active catalysts for achieving degradation thereof.
Non-carbonyl and non-carboxylate containing ruthenium compounds can also lead to highly active catalysts.
Finally, the invention gives highly active catalysts useful for making high-quality polyether polyols.
In certain embodiments, the π-allyl complexes are highly active catalysts.
It can be noted that bayerite provides more active catalysts than gibbsite and boehmite . TABLE 4.
More active catalysts were able to deliver the target 30 % perchloroethylene conversion at a lower reaction temperature.
In many cases, third component " modifiers " are added to active catalysts to improve performance.
Some of the more active catalysts give very high reaction rates at 40 ppm, however.
Carboxylic acids with 1-8 carbon atoms are generally more active catalysts than larger acids.
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