Olefins

The company reported in February that business conditions and results had improved across the vast majority of its business in 2010, most notably in the olefins and polyolefins and propylene oxide businesses. ❋ Tess Stynes (2011)

The company, formed the 2007 merger of Houston-based Lyondell and Europe-based Basell, said market conditions and results improved across the vast majority of its business in 2010, most notably in the olefins and polyolefins and propylene oxide businesses. ❋ Lauren Pollock (2011)

Williams Cos . holds 73% limited-partner interest in Williams Partners and also possesses Canadian midstream and U.S. olefins assets. ❋ Tess Stynes (2011)

¶ -It does not include any of Shell's U.K. retail sites, the Shell higher olefins plant and alcohols units, the lubricant oils blending plant, lubricants marketing business, Shell aviation operations at airports, non-local marine business, marine lubricants, commercial road transport marketing businesses, bitumen marketing business or the Shell technology center at Thornton. ❋ Peter Evans Of Dow Jones Newswires (2011)

Alkenes olefins which can be manufactured into plastics or other compounds ❋ Unknown (2010)

The objectives in mild lube hydrotreating include saturation of olefins and improvements in color, odor, and acid nature of the oil. ❋ Unknown (2008)

By 1980 we had transferred the principles behind tantalum chemistry to tungsten, molybdenum, and rhenium, and had shown what type of tungsten species would metathesize olefins. ❋ Unknown (2006)

There are basically four kinds of "reactive organics" that are important in smog photochemistry: paraffins, olefins, aromatics, and carbonyl compounds aldehydes and ketones, the latter being more commonly formed in the smog process than emitted outright. ❋ James Killus (2008)

This is what hydroxyls do with olefins, incidentally, so you can look on it as the hydroxyl briefly looking at the ring and seeing, not that "one and a half bonds" thing I mentioned above, but a double carbon-carbon bond, which hydroxyls just love to glom onto. ❋ James Killus (2008)

The early days of smog chemistry were dominated by research into the chemistry of paraffins and olefins, so much so, in fact, that it wasn't until the mid-1970s that researchers realized that the photolysis of aldehydes and ketones was the primary source of catalytic radicals in the smog formation process. ❋ James Killus (2008)

In addition, hydrotreating converts olefins and aromatics to saturated compounds. ❋ Unknown (2008)

The quality of pygas, which is high in diolefin content, can be satisfactorily improved by hydrotreating, whereby conversion of diolefins into mono-olefins provides an acceptable product for motor gas blending. ❋ Unknown (2008)

We are proud to represent that group of chemists who have developed catalysts that enable new ways of coordinating the dance-like interchange of atoms in one class of molecules called olefins. ❋ Unknown (2005)

The olefins, diolefins, and alkynes are said to be unsaturated because they contain less than the amount of hydrogen necessary to saturate all the valences of the carbon atoms. ❋ Unknown (2007)

Alkenes are mono-olefins with the general formula CnH2n and contain only one carbon-carbon double bond in the chain (Figure 4). ❋ Unknown (2007)

Although Sasol found it hard to make money in chemicals that are just commodities, it became the largest producer of olefins used in detergents in Europe and the #2 player in the United States. ❋ Antoine Van Agtmael (2007)

In China, for example, the mix of organic compounds is 46 percent paraffins, 32 percent olefins, 21 percent aromatics, and 1 percent aldehydes (Piccot, Watson, and Jones, 1992). ❋ Unknown (2000)

The route for introduction of these fermentation products is through their dehydration to olefins. ❋ Unknown (1983)

Existing processing facilities can then be used to convert these olefins to other commercial chemicals. ❋ Unknown (1983)

In addition Brown has introduced an entirely new class of compounds, the organoboranes, obtained by reacting diborane with olefins (Fig 2). ❋ Unknown (1979)