Class 208/333 - Oxy compound

Subclass of Class 208 - Mineral oils: processes and products
Definition: Processes wherein an organic compound including an oxy group
No. of patents: 25
Last issue date: 05/08/2007

Number	Title	Issue Date
7214294	Azeotrope-like compositions of pentafluoropropane and water This invention provides azeotrope-like compositions of 1,1,1,3,3-pentafluoropropane and water that are environmentally desirable for use as refrigerants, aerosol propellants, metered dose inhalers, blowing agents for polymer foam, heat transfer media, and gaseous di...	05/08/2007
7005058	Process and apparatus for removing sulfur from hydrocarbons Disclosed is an apparatus and process for controlling the sulfur content of effluent from a hydrocarbon fractionation column. The effluent includes a low boiling stream, a middle boiling stream and a high boiling stream. Either of the feed or the low boiling stream ...	02/28/2006
6887370	Separation of oxygenates from a hydrocarbon stream This invention relates to a method for separating olefins and paraffins from oxygenates in a liquid hydrocarbon stream containing a high proportion of olefins, paraffins and oxygenates (mainly alcohols). Typically, the hydrocarbon stream is obtained from a Fischer-T...	05/03/2005
6875341	Process for enhancing the value of hydrocabonaceous natural recources A process for upgrading hydrocarbonaceous oil containing heteroatom-containing compounds where the hydrocarbonaceous oil is contacted with a solvent system that is a mixture of a major portion of a polar solvent having a dipole moment greater than about 1 debye and ...	04/05/2005
6790344	Liquid-phase adsorption process for removing and concentrating heteroatom compounds in hydrocarbons Disclosed is a liquid phase adsorption process for removing and concentrating heteroatom compounds in hydrocarbons (HCH), comprising the steps of adsorption, copurging and regeneration. In the adsorption step, a liquid hydrocarbon stream is fed to an adsorber, which...	09/14/2004
6337429	Method for separating a C4-hydrocarbon mixture A C4 -hydrocarbon mixture essentially containing 1,3-butadiene, butenes, butanes and other C4 -hydrocarbons is separated into at least 4 fractions, a) the fraction (a) essentially comprising 1,3-butadiene, b) the fraction (b) essentially ...	01/08/2002
5922193	Addition of ethers or aldehydes to furfural for aromatic extractions A process to improve the performance of furfural for aromatics extraction from gas oils and lube distillates by the addition of ethers and/or aldehydes, preferably having a dielectric constant less than about 40 @ 25° C....	07/13/1999
5879540	Process for reducing corrosion in a system for separating aromatic hydrocarbons from a mixture with aliphatic hydrocarbons Disclosed is a process for reducing corrosion in a system in which aromatic hydrocarbons are separated from a mixture with aliphatic hydrocarbons. The aromatic hydrocarbons are extracted from the mixture using an extracting solvent. The aromatic hydrocarb...	03/09/1999
5225072	Processes for the separation of aromatic hydrocarbons from a hydrocarbon mixture Processes are disclosed for the separation of aromatic hydrocarbons from feedstreams containing mixtures of aromatic and non-aromatic hydrocarbons using extractive distillation with an aromatic selective solvent in order to separate the aromatic hydrocarb...	07/06/1993
5176821	Process for the separation of aromatic hydrocarbons with energy redistribution In a combined solvent extraction/steam distillation process for the separation of aromatic hydrocarbons from a mixture of aromatic and non-aromatic hydrocarbons, there are three major thermal and material cycles: the solvent cycle, the hydrocarbon cycle, ...	01/05/1993
5021143	Process of fractionation and extraction of hydrocarbons allowing obtaining a cut of increased octane index and a kerosene of improved smoke point The invention relates to a process for hydrocarbon fractionation and extraction making it possible to obtain a petrol with an improved octane number and a kerosene with an improved smoke point. According to the invention a charge with a final boiling point of ...	06/04/1991
4863587	Method for recovery of a phenolic polymerization inhibitor A phenolic polymerization inhibitor is recovered from a styrene distillation residue containing the phenolic polymerization inhibitor by a method which comprises extracting the inhibitor from the styrene distillation residue with an oxygen-containing orga...	09/05/1989
4781820	Aromatic extraction process using mixed polyalkylene glycols/glycol ether solvents This invention relates to an improved more energy efficient process for the separation of aromatic and non-aromatic hydrocarbons from a mixed carbon feed which comprises the following steps: (a) contacting said feed in an extraction zone with an extraction sol...	11/01/1988
4571295	Aromatic/nonaromatic separations The separation of aromatic and nonaromatic containing hydrocarbon feeds is provided by use of an extraction-separation process using extraction solvents....	02/18/1986
4441896	Process for recovering organic substances from spent air vapors The invention relates to a process for recovering preferably water-insoluble organic substances such as nitrobenzene, dichlorobenzene and/or trichlorobenzene by absorption from spent air vapors which contain these substances. The process comprises passing...	04/10/1984
4401560	Process for the separation of aromatic hydrocarbons from petroleum fractions with heat recovery An improvement to a continuous solvent extraction-steam distillation process for the recovery of aromatic hydrocarbons in the range of C6 -C16 from a feed stream containing such aromatics and aliphatic hydrocarbons in the range of C	08/30/1983
4401559	Process for removing halogenated impurities from olefin oligomers Process for removing halogenated impurities from olefin oligomers by extraction with a polar solvent such as dimethylsulfoxide, acetonitrile, dimethylacetamide, dimethylformamide, diethylene glycol or dimethylsulfone....	08/30/1983
4379047	Additive for glycol solvent used in aromatic extraction Hydrazine is added to glycol solvents utilized for aromatic extraction so that corrosion is minimized while the extractive efficiency of the solvent is maintained....	04/05/1983
4272362	Process to upgrade shale oil Oxygen compounds are removed, e.g., by solvent extraction, from a shale oil prior to its hydrogenation. As a result, the amount of hydrogen consumed during subsequent hydrogenation to achieve a given level of nitrogen for the shale oil is less than that w...	06/09/1981
4260476	Separation of aromatic hydrocarbons from petroleum fractions An improvement to a continuous solvent extraction-steam-distillation process for the recovery of aromatic hydrocarbons in the range of C6 -C16 from a feed stream containing such aromatics and aliphatic hydrocarbons in the range of C	04/07/1981
4179362	Process for aromatics extraction from a 300°-430° F. boiling range naphtha Petroleum fractions may be separated into aromatic rich and paraffinic-rich hydrocarbon streams by the use of methanol/water mixtures having at least 10% water by volume. The paraffinic-rich stream is recovered as raffinate and the aromatic-rich as extrac...	12/18/1979
4177137	Aromatics extraction process Substantial energy savings are realized in an aromatic extraction process wherein a vapor sidestream is removed from the solvent stripper, compressed and used to provide the heat necesary for distillation in the solvent stripper....	12/04/1979
4086159	Solvent extraction of aromatic hydrocarbons with ethylene oxide polyol adducts A process for the separation of aromatic hydrocarbon compounds from mixtures thereof with non-aromatic hydrocarbon compounds wherein the mixtures are contacted with an ethoxylated alkane polyol solvent having a number average molecular weight range from a...	04/25/1978
3985644	Use of water/methanol mixtures as solvents for aromatics extraction Petroleum fractions may be separated into aromatic-rich and paraffinic-rich hydrocarbon streams by the use of methanol/water mixtures having more than 20% water. The paraffinic-rich stream is recovered as raffinate. The aromatic-rich stream passes out of ...	10/12/1976
3981798	Liquid/liquid extraction using certain ethers and esters A process for the liquid/liquid extraction of aromatic hydrocarbons from organic solvent mixtures containing aromatic and aliphatic hydrocarbons by the use of certain ethers and esters as extractants is disclosed....	09/21/1976

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Class 208/333 - Oxy compound