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7151199 |
Hydrocarbon conversion processes using non-zeolitic molecular sieve catalysts
Hydrocarbon or oxygenate conversion process in which a feedstock is contacted with a non zeolitic molecular sieve which has been treated to remove most, if not all, of the halogen contained in the...
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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:
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7138557 |
Selective dimethylether recovery and recycle in a methanol-to-olefin process
An improved methanol-to-olefin (MTO) product recovery scheme is provided which enables substantial reduction in the amount of light olefins that are undesirably captured in a dimethylether (DME)...
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7132580 |
Selective dimethylether and methanol recovery and recycle in a methanol-to-olefin process
An improved methanol-to-olefin (MTO) product recovery scheme is provided which enables substantial reduction in the amount of light olefins that are undesirably captured in a dimethylether (DME)...
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6399835 |
Process for electrophilic aromatic substitution
Processes for the electrophilic substitution of aromatic compounds, such as alkylation, with a desired substituent are disclosed. The processes include contacting the aromatic compound, a precursor...
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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...
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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...
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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...
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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...
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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...
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5856607 |
Process for production of ethylbenzene frome dilute ethylene streams
The present invention relates to a process for the production of ethylbenzene from dilute ethylene streams, especially from mixtures of ethane and ethylene where such mixture is the offgas from a...
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5847254 |
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...
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5777187 |
Two-step process for alkylation of benzene to form linear alkylbenzenes
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...
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5600050 |
Zeolite catalyst for the liquid phase alkylation and transalkylation of benzene
Disclosed is a modified zeolite catalyst for the liquid phase alkylation and transalkylation of benzene comprising 30 to 70% by weight of H-beta zeolite with a silicon to aluminium ratio of 20 to...
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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...
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5259948 |
Hydrocarbon conversion process using a novel silicon enhanced amorphous silica-alumina
This invention relates to a hydrocarbon conversion processes, e.g., hydrocracking, cracking, alkylation, etc., using a silicon enhanced amorphous silica-alumina (SEASAL) composition. The...
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5135642 |
Hydrocarbon conversion processes using novel crystalline silicon enhanced aluminas
This invention relates to novel silicon enhanced aluminas (SEAL), processes to prepare them, and hydrocarbon conversion processes using the SEALs. The SEAL compositions have a bulk empirical...
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5077445 |
Liquid-phase alkylbenzene synthesis using hydrated catalyst
There is provided a process for the liquid-phase synthesis of an alkylbenzene, such as ethylbenzene, using a particular MCM-22 zeolite catalyst which has been hydrated with liquid water.
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4950832 |
Method for preparation of dialkylnaphthalenes and catalyst for the same
Dialkylnaphthalenes, especially 2,6-dialkylnaphthalene can be prepared with good yield for a long time by reacting naphthalene and/or monoalkylnaphthalenes with C 2 -C 4 olefin in the presence of...
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4898660 |
Catalytic uses of crystalline metallophosphate compositions
A novel family of crystalline, microporus aluminophosphate compositions is synthesized by hydrothermal crystallization at elevated temperatures of aluminophosphate gels containing a molecular...
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4891465 |
Process for producting alkyl group-substituted aromatic hydrocarbons
In a process for producing an alkyl group-substituted aromatic hydrocarbon according to the present invention, (i) an aromatic hydrocarbon is reacted with (ii) an alkylating agent selected from the...
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4721825 |
Process for the production of xylene
A process for producing xylene from toluene or benzene by the use as a catalyst of a fluorine-containing crystalline aluminosilicate or a fluorine-containing crystalline borosilicate. The specified...
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4709110 |
Catalytic conversion with boron trifluoride treated zeolite
A modified ZSM-5 type zeolite is provided by treatment of a ZSM-5 type zeolite with BF 3 . The novel product is characterized by reduced pore size and enhanced shape-selectivity, or by enhanced...
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4658072 |
Lubricant composition
A lubricant composition having an improved viscosity index and flash point is prepared by reacting diisopropylbenzenes and hexylbenzenes with alpha olefins using a tantalum (V) halide/oxide-gel...
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4620921 |
Acid-catalyzed hydrocarbon conversion process
Substitution of aluminum or gallium for boron or iron contained in the framework of a high silica content zeolite is effected by treating the zeolite in liquid water in the presence of a compound...
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4524229 |
Arene alkylation with metal oxide-niobium halide/oxide catalysts
Benzene and substituted benzene compounds are alkylated with olefins by contact with a catalyst which comprises a metal oxide substrate having niobium (V) halide/oxide bound to the surface of the...
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4520219 |
Process for the production of pseudocumene or durene
A process for producing pseudocueme or durene is described, comprising methylating xylene by the use as a catalyst of at least one crystalline silicate selected from the group consisting of...
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4500418 |
Catalysis over activated inorganic oxides
A process is provided for conducting organic compound conversion over a catalyst comprising alumina and/or gallia which has been treated by a method which comprises contact with ammonium or boron...
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4463207 |
Arene alkylation with metal oxide-tantalum halide/oxide catalysts
Benzene and substituted benzene compounds are alkylated with olefins by contact with a catalyst which comprises a metal oxide substrate having tantalum (V) halide/oxide bound to the surface of the...
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4313021 |
Process for the conversion of aromatic hydrocarbons
A process for the conversion of aromatic hydrocarbons, e.g., reacting an alkylating agent, preferably an olefin, with an aromatic hydrocarbon. The process uses a novel catalyst prepared by...
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4123468 |
Titanium tetrachloride as heterogeneous catalyst for isomerization of alkylaromatic hydrocarbon
A process for the conversion of aromatic hydrocarbons is disclosed which is especially useful for reaction of an alkylating agent, preferably propylene, with an aromatic hydrocarbon. Novel feature...
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4119675 |
Process for transalkylation of alkylaromatic hydrocarbons using a catalyst comprising TiF.sub.4 and
Process for the conversion of aromatic hydrocarbons. Especially useful for reaction of an alkylating agent, preferably propylene, with an aromatic hydrocarbon. Novel feature is use of a catalyst...
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4119676 |
Process for isomerization of alkylaromatic hydrocarbon
Process for the conversion of aromatic hydrocarbons. Especially useful for reaction of an alkylating agent, preferably propylene, with an aromatic hydrocarbon. Novel feature is use of a catalyst...
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4119677 |
Titanium tetrachloride as heterogeneous catalyst for transalkylation of alkylaromatic hydrocarbons
A process for the conversion of aromatic hydrocarbons is disclosed which is especially useful for reaction of an alkylating agent, preferably propylene, with an aromatic hydrocarbon. Novel feature...
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4048248 |
Process and catalyst for the conversion of aromatic hydrocarbons
Process for the conversion of aromatic hydrocarbons. Especially useful for reaction of an alkylating agent, preferably propylene, with an aromatic hydrocarbon. Novel feature is use of a catalyst...
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3607959 |
CATALYST FOR HYDROCARBON CONVERSION
This invention relates to a method of preparing a catalyst useful in hydrocarbon conversion such as alkylation and polymerization. More particularly, this invention relates to the polymerization of...
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3549718 |
HYDROCARBON CONVERSION PROCESS
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3436432 |
PROCESS FOR ALKYLATION OF AROMATICS USING A HALOGEN-CONTAINING ALUMINOSILICATE-ALUMINA CATALYST
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3417148 |
Alkylation process
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3402213 |
Alkylation process
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3365508 |
Benzene alkylation with chloroparaffins
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3336410 |
Alkylation process and catalyst therefor
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3330879 |
Alkylation of aromatic hydrocarbons
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3318821 |
Method of manufacturing a fluorine-containing refractory inorganic oxide composite
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3316317 |
Alkylation process
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3238268 |
Sorption process
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3238267 |
Liquid phase alkylation of aromatic hydrocarbons
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3200164 |
Alkylation-transalkylation process
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3200163 |
Alkylation-transalkylation process
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3197521 |
Process for removing acid-forming hydrogen-containing compounds in an alkylation process
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