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WO/1992/011935A1 |
There is provided a method for preparing a pillared, layered crystalline oxide, said method comprising the steps of: (i) forming a zeolite reaction mixture and effecting crystallization of the mixture; (ii) intercepting the crystalline p...
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WO/1992/011934A1 |
There is provided a crystalline oxide material with a characteristic X-ray diffraction pattern comprising the above lines. This material may be a layered material, which is swollen or pillared. Upon calcination of the swollen material, t...
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WO/1992/009366A1 |
A catalyst for use in acid catalyzed chemical conversion processes such as hydrocarbon conversion processes comprises zeolite beta and a dealuminated Y zeolite having an overall silica-to-alumina mole ratio greater than 6.0, preferably L...
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WO/1992/002473A1 |
A process for producing 2-alkyl-6-ethylnaphthalene selectively and efficiently, which comprises reacting at least one naphthalene compound selected from among naphthalene and 2-alkylnaphthalenes with a polyethylbenzene at 50 to 400 C in ...
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WO/1992/000260A1 |
A method for the selective ethylation of a 2-substituted naphthalene compound at the 6 position of the naphthalene nucleus is disclosed.
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WO/1991/018849A1 |
An improvement in a process for the transalkylation of at least one polyalkylbenzene in the presence of a transalkylation catalyst, which comprises providing the catalyst as a slurry of catalyst particles. This improvement enables one to...
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WO/1991/018851A2 |
The conversion of n-olefins, particularly n-butene, by skeletal isomerization, or by dimerization optionally with cracking, may be selectively carried out using as a catalyst a molecular sieve, such as a zeolite or silica/alumina phospha...
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WO/1991/017829A1 |
A composition of matter comprising both (1) zeolite Beta and a (2) Y zeolite having either a unit cell size below about 24.45 angstroms or a water sorption capacity at 25 �C at p/p�o? of 0.10 of less than 10.00 weight percent. Typica...
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WO/1991/014665A1 |
The invention relates to the use of compounds of general formula (I): R?1¿¿a?Re¿b?O¿c?, where a is 1 to 6, b is 1 to 4, and c is 1 to 14 and the sum of a, b and c is compatible with the penta- or heptavalency of the rhenium and provi...
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WO/1991/011258A1 |
A crystalline zeolite SSZ-31 is prepared by various methods using quaternary ammonium ion templates wherein the product zeolite has a mole ratio of an oxide selected from silicon oxide, germanium oxide and mixtures thereof to an oxide se...
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WO/1991/011414A1 |
Toluene is disproportionated over a catalyst comprising a zeolite having an X-ray diffraction pattern including the lines as in the table above.
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WO/1991/009824A1 |
A process for disproportionation of a methylnaphthalene to a product containing naphthalene and a dimethylnaphthalene comprises contacting the methylnaphthalene with a catalyst comprising a zeolite having the X-ray diffraction lines as s...
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WO/1991/009825A1 |
The invention pertains to rhenium (VII) compounds which are catalysts for metathesis of ordinary olefins (hydrocarbons) and functionalized olefins in a homogeneous phase and to methods of synthesizing these compounds. The rhenium compoun...
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WO/1991/008998A1 |
A feedstock containing one or more C¿9?+ aromatic compounds, and optionally toluene, is converted over a catalyst comprising a zeolite possessing a Constraint Index of 1 to 3 to provide a product which contains substantial amounts of be...
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WO/1991/004958A1 |
Method for the preparation of hydroxylated or carbonylated organic compounds, carrying 2 or 3 double bonds in a hydrocarbon chain with more than 5 carbon atoms; a cyclic diene carrying alkyl branchings is subjected to the cross metathesi...
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WO/1991/000777A1 |
A crystalline low-aluminum boron beta zeolite is prepared using a diquaternary ion as a template.
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WO/1991/000844A1 |
A crystalline zeolite (B)SSZ-24 is prepared using a quaternary ion as a template, and a borosilicate source.
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WO/1990/007480A1 |
The present invention provides a process for the conversion of a reactant into a reaction product in the presence of a solid acid catalyst comprising one or more fluorine atoms, sulfo radicals and phosphono radicals, each such radical be...
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WO/1990/003960A1 |
A process for the selective manufacture of 2,6-diisoalkylnaphthalene from naphthalene feed or paradialkylbenzenes from benzene feed advantageously combines an equilibration step to enhance the amount of monoalkylated feed provided to the...
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WO/1990/003961A1 |
The selective isopropylation of a naphthyl compound to diisopropylnaphthalene enhanced in the 2,6-diisopropylnaphthalene isomer is obtained in the presence of an acidic crystalline molecular sieve catalyst having twelve membered oxygen r...
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WO/1990/000163A1 |
A method for the highly selective production of 2,6-diethylnaphthalene involving the use of a specific Lewis acid catalyst and a highly regiospecific ethylating agent.
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WO/1989/012613A1 |
An improved process for the transalkylation of polyalkylbenzenes to monoalkylbenzenes in a reactor in the presence of a catalyst. The improvement comprises transalkylating a feed comprising polyalkylbenzenes, preferably benzene and polya...
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WO1989010910A1 |
A process for the manufacture of alkylbenzenes wherein a feed of fresh and recycle benzene and fresh olefin are reacted in the presence of an alkylation catalyst in an alkylator having at least two reaction stages wherein each stage is a...
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WO/1989/010342A1 |
An improved process for the alkylation of benzene in the presence of an alkylation catalyst (14, 16). The catalyst bed may be caused to move in a direction countercurrent to the movement of the benzene and olefin, or a portion of the cat...
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WO/1989/009572A1 |
There is provided a dental tool for use with a reciprocating dental handpiece which comprises reciprocating drive means and a sleeve member operatively connected to the drive means for reciprocating motion and designed to retain a dental...
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WO/1989/009185A1 |
A crystalline zeolite SSZ-26 is prepared using a hexamethyl [4.3.3.0] propellane-8,11-diammonium cation as a template. Also disclosed is a process for converting hydrocarbons with crystalline zeolite SSZ-26.
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WO/1986/004892A1 |
A process for the production of isobutylbenzenes in particular, isobutylbenzene itself. The process is in two stages and comprises (1) reacting a vinylcyclohexene with an isoolefin of formula (R)(R1)C=C(CH3)2 in the presence of a dismuta...
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WO/1985/004854A1 |
Molecular sieve compsitions are prepared by extracting aluminum and substituting titanium and/or iron for extracted aluminum to give molecular sieve products containing framework titanium and/or iron atoms. The process of preparing the t...
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WO/1982/002677A1 |
The present invention is directed to the improvement of catalytic hydrocarbon conversion processes by employing novel catalysts therein of increased activity, selectivity, and/or stability in comparison to prior art catalysts. These cata...
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WO/1981/003609A1 |
A device to facilitate putting an elastic envelope (1) on a part projecting from a human body, e.g. putting a urinal drop collector onto a penis, consists of a casing (4) with two flexible side walls (5, 6) connected to each other along ...
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WO/1979/000193A1 |
A C5 mono-olefinically unsaturated mononitrile is disproportionated into a mixture of C6 saturated dinitrile and butadiene by heating with a zerovalent nickel catalyst.
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JP2024033630A |
The present invention provides an efficient and selective method for producing trans-stilbene compounds. [Solution] The method for producing a stilbene compound according to the present invention involves cross-metathesis of at least one...
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JP2024506665A |
The present invention relates to a process for producing olefins and esters in the range of C10 to C13 from fatty acid esters by catalytic hydrogenation reaction and subsequent cross-metathesis reaction of the hydrogenated product with l...
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JP7423793B2 |
A catalyst suitable for the conversion of aromatic hydrocarbons is described. The catalyst comprises UZM-54 zeolite; a mordenite zeolite; a binder comprising alumina, silica, or combinations, thereof; and a metal selected from one or mor...
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JP7411813B2 |
A process for ethylbenzene conversion and xylene isomerization of an alkylaromatic feed mixture is described. A C8 alkylaromatic feed mixture can be contacted with two catalyst beds successively in the liquid phase in a C8 aromatic hydro...
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JP2023549465A |
An integrated catalyst for use in olefin disproportionation reactions is disclosed. The integrated catalyst includes a plurality of different integrated active phases, and the relative positions between the different active phases remain...
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JP2023548551A |
The process for producing monoalkylated benzene includes converting benzene into dialkylated benzene and trialkylated benzene and converting at least a portion of the dialkylated benzene and trialkylated benzene into monoalkylated benzen...
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JP2023152776A |
To provide an efficient and selective production method for a trans-olefin compound.A production method for an olefin compound according to the invention includes a reaction step and a first refining step. In the reaction step, a raw mat...
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JP7362368B2 |
A method for producing xylene, including a conversion reaction step of bringing a raw material containing a light hydrocarbon having 2 to 7 carbon atoms as a main component into contact with a crystalline aluminosilicate-containing catal...
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JP2023542418A |
A disproportionation and transalkylation catalyst, its preparation, and its use are disclosed, the catalyst comprising an acidic molecular sieve, a first metal component loaded on the acidic molecular sieve, and an oxide additive; the fi...
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JP7348939B2 |
The invention provides a method for synthesizing a fatty olefin derivative. In some embodiments, the method includes: a) contacting an unsaturated olefin with an unsaturated fatty acid ester in the presence of a metathesis catalyst under...
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JP2023108285A |
To provide a method for producing simultaneously a light hydrocarbon compound and an aromatic compound having excellent activity, selectivity, metal volatilization inhibitory effect and durability from an aliphatic hydrocarbon compound s...
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JP7320066B2 |
Processes for making phenol and xylenes from a phenols-containing feed are described. The processes involve transalkylation of alkylphenols to form phenol and alkylbenzenes. The phenol is separated from the alkylbenzenes, and the alkylbe...
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JP7304865B2 |
A renewable solvent composition having a high i-paraffin content of at least 91.0 wt.-% and a boiling in a range of from 150° C. to 260° C. is disclosed. The solvent composition can provide a good balance between solvency power and col...
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JP2023527882A |
Disclosed herein are methods for synthesizing high Z isomer purity aliphatic olefin metathesis products from low Z isomer purity olefin feedstocks. The method includes contacting an olefin metathesis reaction partner, such as an acylated...
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JP2023527501A |
The present invention disclosed a novel purely inorganic solid silylsulfonic acid and/or phosphoric acid catalyst material preparation method and its application. Using metasilicic acid rich in hydroxyl groups on the surface as a raw mat...
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JP2023527426A |
In some embodiments, a process for producing cyclic olefins includes introducing a polymer to a metathesis catalyst in a reaction vessel under reaction conditions. The process includes obtaining a product containing cyclic olefins. In so...
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JP2023057579A |
To provide a method of manufacturing an alkyl aromatic hydrocarbon capable of generating an alkyl aromatic hydrocarbon (an aromatic hydrocarbon obtained by substituting a hydrogen of an aromatic rig with a methyl group), at a high yield ...
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JP2023054086A |
To provide improved catalysts, particularly stereoselective and stereoretentive olefin metathesis catalysts which provide improved activity and Z or E selectivity in olefin metathesis reactions, particularly in cross metathesis reactions...
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JP2023514306A |
A toluene disproportionation process utilizing treated UZM-44 zeolite is described. This process produces an effluent stream containing para-xylene and benzene. The molar ratio of benzene to xylene (Bz/X) in the effluent stream can range...
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