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| Number | Title | Issue Date |
| 8148591 | Method of making a synthetic alkylaryl compound A process for alkylating an aromatic compound comprising reacting at least one aromatic compound with a mixture of olefins having from about 8 to about 100 carbon atoms, in the presence of a strong acid catalyst wherein the resulting product comprises at least about... | 04/03/2012 |
| 7335802 | Methods of preparing branched aliphatic alcohols Systems and methods to produced branched aliphatic alcohols are described. Systems may include a dehydrogenation-isomerization unit, an olefin dimerization unit, an olefin isomerization unit, a hydroformylation unit, a dehydrogenation unit, a hydrogenation unit and/... | 02/26/2008 |
| 7189885 | Staged process for producing linear 2-phenyl-alkanes The process disclosed herein is a process for producing phenyl-alkanes by alkylation of an aryl compound with an olefinic compound and which uses a mordenite catalyst and a silica-alumina catalyst. The selectivity of the process to 2-phenyl-alkanes can be varied ove... | 03/13/2007 |
| 7038099 | Environmentally safe alkylation of aliphatic and aromatic hydrocarbons with olefins using solid HF-equivalent catalysts A method of alkylating aliphatic or aromatic hydrocarbons with olefins using solid hydrogen fluoride-equivalent catalysts is described. Preferred catalysts comprise solid polymeric onium polyhydrogen fluoride complexes. ... | 05/02/2006 |
| 7030285 | Alkylation process A side-chain of a substituted aromatic compound is alkylated by reacting the aromatic compound with an alkylating agent in the presence of a catalyst. The catalyst comprises a restructured smectite clay to which basic ions are incorporated by ion-exchange. The restr... | 04/18/2006 |
| 7008914 | Alkylbenzene detergents with high 2-isomer content This invention is directed to a fluorine-containing mordenite catalyst and use thereof in the manufacture of alkylbenzene (LAB) by alkylation of benzene with an olefin. The olefin may have from about 10 to 14 carbons. The fluorine-containing mordenite is prepared ty... | 03/07/2006 |
| 6995127 | Alkyl toluene sulfonate detergent This invention is directed to detergent compositions which employ sulfonated alkyltoluenes as surfactants, wherein the sulfonated alkyltoluenes have a higher content of the sulfonated 2-phenyl alkyltoluenes isomers than was previously available in sulfonated alkylto... | 02/07/2006 |
| 6617481 | Process for producing phenyl-alkanes using an adsorptive separation section The present invention is a process for producing phenyl-alkanes by paraffin adsorptive separation followed by paraffin dehydrogenation and then by alkylation of a phenyl compound by a lightly branched olefin. The adsorptive separation step employs a silic... | 09/09/2003 |
| 6534690 | Process for the preparation of spherically shaped microcomposites A process for the preparation of at least one spherically shaped porous microcomposite is provided which microcomposite comprises a perfluorinated ion-exchange polymer containing pendant sulfonic and/or carboxylic acid groups entrapped within and highly d... | 03/18/2003 |
| 6255549 | Method for producing low bromine number fraction A fraction of low bromine number mainly containing a styrenic compound/aromatic compound adduct can be attained, by feeding reaction materials of a styrenic compound and an aromatic compound to a fixed-bed flow reactor packed with a solid acid catalyst in... | 07/03/2001 |
| 6248930 | Fluorine-modified perfluorinated ion-exchange microcomposite catalysts This invention concerns fluorine-modified perfluorinated ion-exchange microcomposites, comprising a perfluorinated ion-exchange polymer containing pendant sulphonic acid groups and/or carboxylic acid groups, entrapped within and highly dispersed throughou... | 06/19/2001 |
| 6169219 | Alkylation of aromatics with removal of polymeric byproducts Detergent-quality linear alkylaromatics are recovered from an alkylation reactor effluent containing polymeric byproducts, such as dimers and trimers of the olefinic feedstock. The effluent stream passes to another reactor operating at a higher temperatur... | 01/02/2001 |
| 6166281 | Alkylation of benzene to form linear alkylbenzenes using fluorine-containing mordenites This invention is directed to a fluorine-containing mordenite catalyst and use thereof in the manufacture of linear alkylbenzene (LAB) by alkylation of benzene with an olefin. The paraffin may have from about 10 to 14 carbons. The fluorine-containing mord... | 12/26/2000 |
| 6133492 | Alkylation of benzene to form linear alkylbenzenes using fluorine-containing mordenites This invention is directed to a fluorine-containing mordenite catalyst and use thereof in the manufacture of linear alkylbenzene (LAB) by alkylation of benzene with an olefin. The olefin may have from about 10 to 14 carbons. The fluorine-containing morden... | 10/17/2000 |
| 5994602 | Alkylation process This invention relates to a process for the alkylation of aromatics by reacting an aromatic hydrocarbon with an olefin in the presence of an ionic liquid comprising (a) a compound of the formula Rn MX3-n wherein R is a C1-C6 alkyl ra... | 11/30/1999 |
| 5824832 | Linear alxylbenzene formation using low temperature ionic liquid A low temperature molten ionic liquid composition comprising a mixture of a metal halide and an alkyl-containing amine hydrohalide salt can be used in linear alkylbenzene formation. The metal halide is a covalently bonded metal halide which can contain a ... | 10/20/1998 |
| 5705724 | Aromatics alkylation with cracked recycled plastics A process is disclosed for the production of alkylaromatic compounds employing olefinic liquid from thermally or catalytically cracked plastics as alkylating agent. The process comprises contacting a feedstream comprising alkylatable aromatics and the ole... | 01/06/1998 |
| 5488193 | Process for reducing polynuclear aromatic mutagenicity by alkylation A process for reducing the mutagenicity of a polynuclear aromatic containing material containing from three to seven fused aromatic rings, especially a hydrocarbon refinery stream. The process reduces the initial mutagenicity index to a lower value by alk... | 01/30/1996 |
| 5386072 | Process for the preparation of linear alkylbenzenes Process for the preparation of linear alkylbenzenes, wherein the benzene is reacted, in the presence of aluminum chloride or aluminum in powder form, with a mixture composed of C7 -C20 n-olefins and C7 -C20 chlo... | 01/31/1995 |
| 5344997 | Alkylation of aromatics using a fluorided silica-alumina catalyst A fluorided silica-alumina catalyst, particularly one with a silica:alumina ratio in the range of 1:1-9:1 containing from 1 to 6 weight percent fluoride, is particularly effective in the liquid phase alkylation of benzene by linear olefins to produce line... | 09/06/1994 |
| 5302732 | Use of ultra-low sodium silica-aluminas in the alkylation of aromatics Silica-aluminas having a sodium content less than about 0.1 weight percent show increased stability when used as a catalyst for the alkylation of aromatic compounds. Where such silica-aluminas are used as the catalyst in detergent alkylation their increas... | 04/12/1994 |
| 5196574 | Detergent alkylation process using a fluorided silica-alumina A fluorided silca-alumina catalyst, particularly one with a silica:alumina ratio in the range of 1:1-9:1 containing from 1 to 6 weight percent fluoride, is particularly effective in the liquid phase alkylation of benzene to produce linear alkyl benzenes a... | 03/23/1993 |
| 5171915 | Alkylaromatic lubricants from alpha-olefin dimer It is disclosed that aromatic compounds can be alkylated with mono-olefinic HVI-PAO dimer in contact with an acidic catalyst to produce novel alkylated aromatic compositions. It has been found that the novel HVI-PAO dimer alkylated aromatic compositions e... | 12/15/1992 |
| 5107048 | Process for preparing long chain alkyl aromatic compounds employing Lewis acid-promoted amorphous inorganic oxide Aromatic hydrocarbons are alkylated with relatively long chain alkylating agents, e.g., C8 + olefins, at mole ratio of aromatic to alkylating agent of not greater than about 5 in the presence of, as catalyst, a Lewis acid-promoted amorphous, po... | 04/21/1992 |
| 5034161 | Synthesis of aryl-substituted aliphatic acids A method for preparation of aryl-substituted aliphatic hydrocarbons is disclosed. The method comprises reacting in the presence of a solid superacid resin catalyst an unsaturated aliphatic hydrocarbon in liquid form with an aromatic hydrocarbon that is su... | 07/23/1991 |
| 5030785 | Process for preparing long chain alkyl aromatic compounds employing Lewis acid-promoted zeolite catalysts Aromatic hydrocarbons are alkylated with relatively long chain alkylating agents, e.g., C6 + olefins, in the presence of, as catalyst, certain Lewis acid-promoted zeolites to provide long chain aromatic products which are useful, inter alia, as... | 07/09/1991 |
| 5019662 | Process for the production of white oil from heavy aromatic alkylate A process for the production of hydrocarbon white oil by means of hydrogenating a heavy aromatic alkylate is disclosed. The process is characterized in that its feedstock is a previously undesired heavy hydrocarbon byproduct of aromatic alkylation. A whit... | 05/28/1991 |
| 5012021 | Process for the production of alkylaromatic hydrocarbons using solid catalysts An improved process for the production of alkylaromatic hydrocarbons is disclosed. Paraffinic hydrocarbons are dehydrogenated to yield an olefin-containing stream, which is later charged to an alkylation zone for reaction with an aromatic hydrocarbon in t... | 04/30/1991 |
| 4950824 | Process for the production of 2,6-diisopropylnaphthalene A process for the production of 2,6-diisopropylnaphthalene is disclosed wherein an isopropylation reaction mixture containing isopropylated naphthalenes is subjected to transalkylation with a triisopropylnaphthalene-containing mixture to obtain a mixture ... | 08/21/1990 |
| 4943668 | Alkylation of meta-xylene with alpha-olefins A process for producing an alkylated aromatic product having high selectivity to the thermodynamically preferred isomer by contacting meta-xylene and a C13 to C20 alpha-olefinic compound at a reaction temperature of about 40° to abo... | 07/24/1990 |
| 4929584 | Alkylation of Benzene compounds with detergent range olefins This invention relates to a catalyst composition prepared by reacting in a hydrocarbon solvent a molybdenum or tungsten halide with diethylaluminumtriethylsilaneolate. Preferably the halide is tungsten hexachloride. The instant compositions are particular... | 05/29/1990 |
| 4855519 | Method for producing arylethylene A method for producing arylethylene comprising four steps of: (I) bringing 1,1-diarylethane into contact with an acid catalyst in the presence of an inert gas to crack said compound into arylethylenes and alkylbenzenes; (II) separating the reaction mixtur... | 08/08/1989 |
| 4855518 | Method for producing p-alkylstyrene A method for producing p-alkylstyrene which is characterized in that side reaction scarcely occurs, catalyst and unreacted material are easily recovered for the reuse, the p-position selectivity is excellent and yield of aimed product is high. In the meth... | 08/08/1989 |
| 4691068 | Process for production of alkyl aromatics An improved process for producing a mono alkyl aromatic by reacting a mono nuclear aromatic compound and an alkylating agent under alkylation conditions to produce the reaction product comprising unreacted mono nuclear aromatic compound, alkane, mono alky... | 09/01/1987 |
| 4665275 | Thermal medium oils A thermal medium oil comprising at least one monosubstituted naphthalene derivative such as ଲ-(1,1-dimethyloctyl) naphthalene, ଲ-(1,1-dimethylhexyl) naphthalene and 2-t.-amylnaphthalene.... | 05/12/1987 |
| 4585750 | Composite catalyst for hydrocarbon conversion reactions This invention provides a catalyst product for hydrocarbon conversion reactions and a method for reacting hydrocarbons employing such catalyst product. The catalyst product is a composite of a perfluorinated polymersulfonic acid and an ion-stabilizing age... | 04/29/1986 |
| 4523048 | Process for the selective production of alkylbenzenes An improved process for the production of alkylaromatic hydrocarbons is disclosed. Paraffinic hydrocarbons are dehydrogenated to yield an olefin-containing stream, which is later charged to an alkylation zone for reaction with an aromatic hydrocarbon. The... | 06/11/1985 |
| 4469804 | Niobium or tantalum/halogen-containing catalyst regeneration process Catalysts containing niobium or tantalum halides which have been deactivated by contact with oxygen are regenerated by being contacted with a halogenated hydrocarbon.... | 09/04/1984 |
| 4467128 | Integrated HF regeneration in aromatic hydrocarbon alkylation process A process is disclosed for the production of alkylaromatic hydrocarbons by the HF catalyzed reaction of an aromatic hydrocarbon with a C8 -plus acyclic olefin. A portion of the HF used as catalyst is regenerated by passage into a stripping colu... | 08/21/1984 |
| 4463205 | Alkylation process with improved linear alkylbenzene recovery A process is disclosed for the production of alkylaromatic hydrocarbons by the alkylation of an aromatic hydrocarbon, such as benzene, with a C8 -plus acyclic olefin which preferably is a normal olefin. The hydrocarbonaceous effluent of the alk... | 07/31/1984 |
