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Alkenes serve as a feedstock for the petrochemical industry because they can participate in a wide variety of reactions.
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Alkenes and petrochemical
Alkenes are also called olefins ( an archaic synonym, widely used in the petrochemical industry ).
Alkenes and can
Alkenes can be ligands in metal complexes.
Alkenes can be oxidized with ozone to form alcohols, aldehydes or ketones, or carboxylic acids.
Alkenes and reactions
Alkenes react in many addition reactions, which occur by opening up the double-bond.
Alkenes undergo many important reactions that proceed via a photon-induced π to π * transition.
Alkenes and .
Alkenes are relatively stable compounds, but are more reactive than alkanes due to the presence of a carbon-carbon pi-bond.
Alkenes react with water and halogens to form halohydrins by an addition reaction.
Alkenes are oxidized with a large number of oxidizing agents.
Alkenes also react with halogens ( X < sub > 2 </ sub >) to form haloalkanes with two neighboring halogen atoms in a halogen addition reaction.
Alkenes and alkynes with more than one double or triple bond respectively are named with the appropriate numeric prefix preceding the-ene or-yne.
Alkenes are hydrocarbons that have one or more double bonds between carbon atoms.
Alkenes with a hydroxyl group on both sides of the double bond are called enediols.
serve and feedstock
A detailed analysis by physicists at the Federation of American Scientists concludes that such an estimate would depend on the total number and overall efficiency of the centrifuges Iran has in operation, and the amount of low-enriched uranium it has stockpiled to serve as " feedstock " for a possible high-enrichment program.
serve and for
Incapable of self-delusion, the Founding Fathers found the crisis of their time to be equally grave, and yet they had confidence that America would surmount it and that a republic of free peoples would prosper and serve as an example to a world aching for liberty.
The History takes too much for granted to serve as a text for other than English schoolboys, and like Britain in the nineteenth century it deteriorates badly as it goes beyond 1870.
and to Mrs. Rozella Switzer, regional director of The National Conference of Christians and Jews, who asked them to serve as a committee for the fund.
It seems to me the time has come for the American press to start experimenting with ways of reporting the news that will do a better job of communicating and will be less subject to abuse by those who have learned how to manipulate the present stereotype to serve their own ends.
First priority will be given to the preparation of a meaningful state guide plan to serve as a background for all other planning activities in the state.
The basement or belowground shelters also will serve for tornado or hurricane protection.
The return for a decedent may also serve as a claim for refund of an overpayment of tax.
It is the purpose of this magazine to serve as an outlet for student creative writing.
They serve not only as spokesmen for their areas, but they also contribute to top-level decision making.
These will serve as lifting pads for the electrical contacts.
You will discover you keep the sauce for basting meat in one, use six for drinks, serve soup or coffee in another half-dozen -- and need one more to mix the salad dressing.
By 1937 he had clarified his intentions to serve his people: `` I have striven for clarity and melodious idiom, but at the same time I have by no means attempted to restrict myself to the accepted methods of harmony and melody.
The Onset Profile and Completion Profile are constructed to serve as norms for children.
They generally vote so as to serve their own constituency, and if the constituency should be solidly middle class or solidly lower class, they might be expected to vote and work for middle- or for lower-class interests in education.
They think of themselves as trustees for the entire society and try to serve the entire society.
Other synonyms could of course serve the same function, and for the sake of ease I shall speak of kennings and epithets in the widest and loosest possible sense, and name, for example, Gar-Dene a kenning for the Danes.
Such mannerisms would be less worthy of remark, were it not that in Great Expectations, as in no other of Dickens' novels, hands serve as a leitmotif of plot and theme -- a kind of unifying symbol or natural metaphor for the book's complex of human interrelationships and the values and attitudes that motivate them.
The sewage system from Kansas City was not expected to serve the Red Bridge area for several years.
Interest remained, however, in the possibility that it would serve as a useful supplementary method for counteracting spoilage losses and for preserving some foods at lower over-all costs than freezing, or without employing heat or chemicals with their attendant taste alterations.
serve and petrochemical
However, the ethane, propane, butanes, naphtha and gas oil serve as optional feedstocks for steam-assisted thermal cracking plants referred to as steam crackers that produce these intermediate petrochemical feedstocks:
This was in addition to PCCW's PCITC alliance with Sinopec, formed to serve Sinopec plus other players in China's petrochemical sector.
Once these operations complete, new products are obtained that serve as building blocks of the petrochemical industry: olefins, i. e., mainly ethylene, propylene, and the so called C4 derivatives, including butadiene — and aromatics, so called because of their distinctive perfumed smell, i. e., mainly benzene, toluene and the xylenes.
serve and industry
The electronics industry, which also was configured in the 1980s to serve Soviet markets, has not been able to compete with Western computer manufacturers.
It also called for the creation of a short-service national militia to serve defensive duties, nationalization of the armaments industry, and a foreign policy designed to be peaceful but also competitive.
The NSBO was completely suppressed and the DAF became little more than an arm of the state for the more efficient deployment and disciplining of labour to serve the needs of the regime, particularly its massive expansion of the arms industry.
Emigration continued into the next century ; over half a million Irish went to Britain in World War II to work in industry and serve in the British armed forces.
Ultimately, industrial guilds would serve as the organs through which industry would be organised in a future socialist society.
According to Curtis, " Powell, Harlow and Loy were among the biggest draws in the industry, and equal billing in such a powerhouse company could only serve to advance Tracy's standing ".
The business was originally founded to serve the manufactured housing industry by Robert DuBois, who later sold the company to Goshen Rubber Company.
In the 19th century, industry arrived in Herm with the establishment of granite quarries to serve the large scale military fortifications undertaken in the islands.
The 35 miles of beaches and dunes which make up the county's 11 barrier islands provide habitat for coastal species, serve as critical storm protection for the inland communities, and form the basis of the area's thriving tourism industry.
A short distance later, the highway intersects with Herrod Drive and Commerce Drive, both of which serve the local industry.
The Tucson, Cornelia & Gila Bend Railroad was built from Gila Bend to serve the mining industry and was in service from 1916 to 1985.
In 1924, the Littlerock Dam and the Harold Reservoir, present day Lake Palmdale, were constructed to assist the agricultural industry and have enough water to serve the growing communities.
Despite a decline in population in recent decades, Great Bend continues to serve as a service industry and retail commerce center for central Kansas.
The city has a new general aviation airport to serve existing business and industry, and the timber, poultry and cattle industries continue to expand.
Wenham's ice industry brought the name of Wenham to the notice of people as far away as London, where hotels in the 1850s advertised: " We serve Wenham Lake Ice.
It had everything needed to serve residents and the fast expanding lumber industry.
Pine City prospered and grew into a city that had everything needed to serve residents, farmers, and the fast expanding lumber industry.
Related businesses, such as box makers, sewing machine repairmen, and thread dealers opened to serve the industry.
The community was one of a number of area villages established to serve the coal-mining industry, and once featured several active deep mines.
The initial five-year plans were created to serve in the rapid industrialization of the Soviet Union, and thus placed a major focus on heavy industry.
It can also serve a purpose similar to a metronome, as in the music industry, where it is often used during recording sessions and live performances.
The NSBO was completely suppressed and the DAF became little more than an arm of the state for the more efficient deployment and disciplining of labour to serve the needs of the regime, particularly its massive expansion of the arms industry.
A tourist industry developed to serve visitors to the area made famous by Charlotte Brontë's " Shirley " and by the Luddite attacks.
Due to overfishing to serve the expanding regional population, the fishing industry declined with diminishing catches, such that by 1939 only a remnant of the earlier fishing fleet continued to exist, and the catch mostly supported the local population from that point onward.
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