The solvent may be a hydrocarbon solvent, such as hexane, propane, isobutene, or cycloalkane
This result had already been observed, and can be rationalised in terms of the recalcitrant resistance to biodegradation of the major isoalkane and cycloalkane
fraction -circa 50%-present in Diesel fuel (Marchal et al.
chains are much harder to break apart than petroleum's shoe-stringlike molecules, Andresen says.
12] studied the decomposition chemistry of 1, l-bis(tertbutylperoxy)cyclohexane, one of cycloalkane
perketal initiators, for styrene polymerization.
Using Fischer-Hirschfelder-Taylor space filling models (Fischer) of the 2-(2-pyridyl) cyclopentanone and the 2-(2-pyridyl) cyclohexanone, the cycloalkane
ring is rigid in both the enol and the keto form but steric interactions appear greater in the keto form of the cyclopentane ring and in the enol form of the cyclohexane ring thus favoring the enol form in the five membered ring and the keto form for the six membered ring.
Analyses of the intertidal sediments in 1973 showed clearly the mixture of cycloalkane
compounds in concentrations as high as 2 milligrams per gram.
2] is produced during the pyrolysis of bitumen, which mainly results from the dehydrogenation of the side chains of aromatics, alkanes and cycloalkanes
Identified compounds were assigned to 17 chemical families: acids, alkanes, alcohols, aldehydes, aliphatic, and aromatic hydrocarbons, cycloalkanes
, cyclopentanones, cyclopentenones, esters, glycol, ketones, lactones, pyridines, phenols, terpenes, and terpenoids.
9] synthesized Cr-MCM-41 materials, which showed high selectivity and great catalytic activity in the direct oxidation of various cycloalkanes
to cyclic ketones under mild liquid phase reaction conditions, respectively, using dilute aqueous or tert-butyl hydroperoxide as oxidant; Debraj Chandra, et al.
This work will lead to ground-breaking advances when non-strained cycloalkanes
(cyclopentane, cyclohexane) will undergo this smooth C-C bond activation with friendly and non toxic organometallic species.
05ml of mineral oil (selected from one of the following groups of light mixtures of alkanes in the C15 to C40 range from a non-vegetable source, a distillate of petroleum, a paraffinic oil based on n-alkanes, naphthenic oil based on cycloalkanes
, aromatic oil based on aromatic hydrocarbons) and a double headed brush in which the front brush has coarse bristles for scrubbing and a rubber brush for deep cleaning.
With the new process, the phenolic components of bio-oil can be converted with high selectivity to cycloalkanes
(ring-shaped alkanes) and methanol.