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| Number | Title | Issue Date |
| 7297827 | Use of monolith catalyst to prepare ethylbenzene Disclosed is an alkylation reactor for preparing ethylbenzene. The reactor comprises a monolith catalyst system that includes a monolith support impregnated or co-formed with a catalyst suitable to catalyze the alkylation of benzene with ethylene. The catalyst may b... | 11/20/2007 |
| 7294420 | Production of hydrogen A method of producing hydrogen for a fuel cell from a hydrocarbon fuel composition, by providing a hydrocarbon fuel composition, which is obtained by contacting a liquid hydrocarbon feed comprising an alkylating agent with an acidic catalyst, under conditions effect... | 11/13/2007 |
| 7148388 | Process for preparing and olefinic hydrocarbon mixture In a process for preparing an olefinic hydrocarbon mixture comprising at least 5% by weight of mono-olefin oligomers of the empirical formula: CnH2n where n is greater than or equal to 6, a feedstock comprising n-butene and... | 12/12/2006 |
| 6787438 | Device having one or more contact structures interposed between a pair of electrodes A microelectromechanical device is provided which includes a contact structure interposed between a pair of electrodes arranged beneath a beam. In some embodiments, the device may include additional contact structures interposed between the pair of electrodes. For e... | 09/07/2004 |
| 6303840 | Alkylation reactions of aromatic subtrates A process for the alkylation of aromatic substrates under supercritical or near-critical reaction conditions is described. In particular, a method for performing Friedel-Crafts alkylation reactions is disclosed under those conditions. Friedel-Crafts react... | 10/16/2001 |
| 6218591 | Zeolite SSZ-36 The present invention relates to new crystalline zeolite SSZ-36 prepared using a cyclic or polycyclic quaternary ammonium cation templating agent.... | 04/17/2001 |
| 6096680 | Liquid clathrate compositions Liquid clathrate compositions useful as reusable aluminum catalysts in Friedel-Crafts reactions are described. In one embodiment, the liquid clathrate composition is formed from constituents comprising (i) at least one aluminum trihalide, (ii) at least on... | 08/01/2000 |
| 6010617 | Process for producing non-carcinogenic coal-tar-derived products A process for reducing the mutagenicity of a coal-tar-based product containing polynuclear aromatic compounds. The process includes the step of contacting the coal-tar-based product in the presence of an alkylating agent with an acid catalyst under alkyla... | 01/04/2000 |
| 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 |
| 5986155 | Catalytic process for making high reactivity alkylating agents and products resulting therefrom Treating low reactivity alkylating agents in the vapor phase with catalysts converts the low reactivity alkylating agents to high reactivity alkylating agents. The alkylating agents are useful in synthesis of alkyl aromatics with Lewis acid catalysts.... | 11/16/1999 |
| 5977422 | Organoaluminum catalysis of alkylation reactions This invention relates to an improved catalytic process for the alkylation of benzene or substituted benzene with alkyl halides for the continuous production of diarylalkanes or substituted derivatives thereof using ethylaluminum dichloride or methylalumi... | 11/02/1999 |
| 5962760 | Alkylation of aromatics using a metal cation-modified friedel-crafts type catalyst A process for the alkylation of aromatic compounds with an olefin or alkyl halide having from 1 to 24 carbon atoms utilizes a novel catalyst comprising: a) a refractory inorganic oxide, b) the reaction product of a first metal halide and bound surface hyd... | 10/05/1999 |
| 5955641 | Method of making dimethylnaphthalenes The method of the invention includes making dimethyinaphthalenes by first contacting, in an alkylation zone, at alkylation conditions, a toluene-containing stream with a pentene-containing stream in the presence of an acid alkylation catalyst. At least a ... | 09/21/1999 |
| 5859302 | Processes employing reusable aluminum catalysts Described are novel processes which employ reusable aluminum catalysts in Friedel-Crafts reactions. In one aspect, a novel process for producing a Friedel-Crafts reaction product is described, the process comprising: providing, to a reactor, aromatic reac... | 01/12/1999 |
| 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 |
| 5648580 | Supported lewis acid catalysts for hydrocarbon conversion reactions A supported Lewis acid catalyst system for catalyzing hydrocarbon conversion reactions including cationic polymerization, alkylation, isomerization and cracking reactions is disclosed, wherein the catalyst system comprises an inorganic oxide support havin... | 07/15/1997 |
| 5574198 | Process for producing linear alkylbenzenes The present invention relates to an improved process for preparing linear alkylbenzenes falling within such range as used in detergency (C10 -C14), which process consists of alkylating aromatic hydrocarbons (above all, benzene) with ... | 11/12/1996 |
| 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 |
| 5481054 | Immobilized Lewis Acid catalysts Immobilized Lewis Acid catalyst comprising polymer having at least one Lewis Acid immobilized within the structure therein, said polymer having monomer units represented by the structural formula: --[A]a --[B]b --[C]c -- wherei... | 01/02/1996 |
| 5476977 | Naphthalenic compound and process for its preparation 1,1,2,3,4,4,6-Heptamethyl-1,2,3,4-tetrahydronaphthalene, a novel naphthalenic compound, is useful as an intermediate for the preparation of 5,6,7,8-tetrahydro-3,5,5,6,7,8,8-heptamethyl-2-naphthalenecarbaldehyde. It is prepared by a process consisting of t... | 12/19/1995 |
| 5430015 | Acylation of tetralins A method of acetylating 1,2,3,4,-tetrahydro-1,1,2,4,4,7-hexamethylnapthalene (HMT) to produce 6-acetyl-1,2,3,4-tetrahydro-1,1,2,4,4,7-hexamethlnaphthalene (acetyl-HMT), comprises subjecting a mixture of 1,2,3,4-tetrahydro-1,1,2,4,4,7-hexamethlnaphtha... | 07/04/1995 |
| 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 |
| 5210353 | Aromatic transformation process A process is provided for transaralkylating a class of starting compounds comprised of aryl-substituted lower alkanes and aryl-substituted fused alkylene ring compounds to produce derivatives of such compounds wherein benzyl substituents thereof have diff... | 05/11/1993 |
| 5191136 | Process for production of sec-butylbenzene A process for production of sec-butylbenzene is disclosed, comprising reacting benzene and n-butene in the presence of a liquid aluminum chloride complex catalyst is disclosed, wherein the reaction is carried out under conditions satisfying formulae (1) t... | 03/02/1993 |
| 5132478 | Alkylaromatic lubricant fluids Aromatic compounds are alkylated with C20 -C1300 olefinic oligomers using an acidic alkylation catalyst to produce alkylated aromatic products, usually alkylaromatic hydrocarbons. The olefinic oligomers used as alkylating agents are ... | 07/21/1992 |
| 5087785 | Processes for preparing alkylated indanes and tetrahydronaphthalenes Improved processes for the production of secondary alkyl indanes, particularly mixtures of 1,1,3,5-tetramethyl-3-isopropylindanes and 1,3,3,5-tetramethyl-3-isopropylindane, and alkylated tetrahydronaphthalenes, particularly mixtures of 1,1,3,4,4,6-he... | 02/11/1992 |
| 5059736 | Process for production of sec-butylbenzene A process for production of sec-butylbenzene from benzene and n-butene in the presence of a liquid aluminum chloride complex catalyst is disclosed, wherein the amount of aluminum chloride used as a component of the complex catalyst is from 0.3 to 5 wt % o... | 10/22/1991 |
| 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 |
| 4877912 | Process for preparing 1,1,3,4,4,6-hexamethyl-1,2,3,4-tetrahydronaphthalene A process is disclosed for the production of 1,1,3,4,4,6-Hexamethyl-1,2,3,4-Tetrahydronaphthalene comprising reacting para-cymene with an olefinic compound selected from the group consisting of 2,3-dimethyl-1-butene and neohexene, in the presence of a rea... | 10/31/1989 |
| 4877913 | Process for preparing polyalkyl tetrahydronaphthalenes A process is disclosed for the production of polyalkyl tetrahydronaphthalenes wherein a cyclialkylation reaction between an olefinic compound of the general formula ##STR1## and a substituted benzene compound is carried out in the presence of a ... | 10/31/1989 |
| 4877914 | Process for preparing polyalkyl tetrahydronaphthalenes A process is disclosed for the production of polyalkyl tetrahydronaphthalenes is disclosed wherein a cyclialkylation reaction between an olefinic compound of the general Formula ##STR1## wherein R4, R5 and R6 are inde... | 10/31/1989 |
| 4877915 | Process for preparing polyalkyl tetrahydronaphthalenes A process is disclosed for the production of polyalkyl tetrahydronaphthalenes wherein a cyclialkylation reaction between an olefinic compound of the general formula ##STR1## wherein R4, R5, and R6 are substituents whi... | 10/31/1989 |
| 4877916 | Process for preparing polyalkyl tetrahydronaphthalenes A process is disclosed for the production of polyalkyl tetrahydronaphthalenes wherein a cyclialkylation reaction between an olefinic compound of the general formula ##STR1## where R4, R5, R6 and R7 are inde... | 10/31/1989 |
| 4877910 | Process for preparing polyalkyl tetrahydronaphthalenes A process is disclosed for the production of polyalkyl tetrahydronaphthalenes is disclosed wherein a cyclialkylation reaction between an olefinic compound of the general Formula ##STR1## wherein R4, R5, and R6 are ind... | 10/31/1989 |
| 4877911 | Process for preparing polyalkyl tetrahydronaphthalenes A process for the production of polyalkyl tetrahydronaphthalenes is disclosed wherein a cyclialkylation reaction between an olefinic compound of the general Formula ##STR1## wherein R5, R6 and R7 are independently def... | 10/31/1989 |
| 4734528 | Method for preparing 3-ethylbenzophenone The present invention provides a method for preparing 3-ethylbenzophenone in a high purity which comprises the steps of alkylating benzene with ethylene in the presence of an alkylating catalyst to obtain an alkylated product composed mainly of unreacted ... | 03/29/1988 |
| 4731483 | Method for preparing 3-ethylbenzophenone The present invention provides a method for preparing 3-ethylbenzophenone in a high purity which comprises the steps of alkylating benzene with ethylene with the aid of an alkylating catalyst to obtain an alkylated product composed mainly of unreacted ben... | 03/15/1988 |
| 4714794 | Synthetic oils A synthetic oil having excellent oxidation stability, comprising a mixture of monoalkylnaphthalenes which have each a secondary alkyl group of 6 to 24 carbon atoms and in which the specific molar ratio of - to ଲ-substituted monalkylnaphthalen... | 12/22/1987 |
| 4699659 | Solvent for chromogenic dye-precursor material for pressure-sensitive recording paper sheet and pressure-sensitive recording paper sheet prepared by using the solvent Disclosed herein are a solvent for a chromogenic dye-precursor material for a pressure-sensitive recording paper sheet, comprising (1) 30 to 80% by weight of p-monoisopropylbiphenyl or a biphenyl mixture of not less than 80% by weight of p-monoisopropylbi... | 10/13/1987 |
| 4668835 | Novel tetracyclic trienes The alkylation of para-substituted isopropyl benzenes with dipentenes employing an aluminum halide catalyst system produces novel tetracyclic compounds.... | 05/26/1987 |
