Abstract: A synthetic zeolite material, designated zeolite Nu-13, is a member of the ZSM-12 family of zeolites and is prepared from an aqueous reaction mixture containing the oxide XO.sub.2, the oxide Y.sub.2 O.sub.3 and a piperazine compound where X is silicon or germanium and Y is aluminium, gallium, boron, iron, chromium, vanadium, molybdenum, arsenic, antimony or manganese.

Abstract: A crystalline zeolitic material, designated Nu-27, has a composition (in terms of mole ratios of oxides) expressed by the formula:0 to 9 M.sub.2 O:aY.sub.2 O.sub.3 :100 XO.sub.2 :0 to 35 H.sub.2 O,wherein M is a monovalent cation of 1/n of a cation of valency n, a is from 0 to 9, X is silicon and/or germanium, Y is one or more of aluminium, iron, chromium, vanadium, molybdenum, arsenic, antimony, manganese, gallium or boron, and H.sub.2 O is water of hydration additional to water notionally present when M is H and having a defined X-ray diffraction pattern. The zeolitic material is prepared from an aqueous reaction mixture containing a source of oxide XO.sub.2, optionally a source of oxide Y.sub.2 O.sub.3, and a tetralkylethylenediamine compound.

Abstract: A new zeolite material designated EU-1 having a molar composition expressed by the formula:0.5 to 1.5 R.sub.2 O : Y.sub.2 O.sub.3 : at least 10 XO.sub.2 : O to 100 H.sub.2 O wherein R is a monovalent cation or 1/n of a cation of valency n, X is silicon and/or germanium, Y is one or more of aluminium, iron, gallium or boron, and H.sub.2 O is water of hydration additional to water notionally present when R is H, and having an X-ray pattern substantially as set out in Tables 1 and 2 is prepared from a reaction mixture containing XO.sub.2 (preferably silica), Y.sub.2 O.sub.3 (preferably alumina) and a dicationic alkylated polymethylene diamine. The new zeolite is useful in catalytic processes, especially xylenes isomerisation.

Abstract: A new zeolite material designated EU-1 having a molar composition expressed by the formula:0.5 to 1.5 R.sub.2 O:Y.sub.2 O.sub.3 : at least 10 XO.sub.2 :0 to 100 H.sub.2 Owherein R is a monovalent cation or .sup.1 /n of a cation of valency n, X is silicon and/or germanium, Y is one or more of aluminum, iron, gallium or boron, and H.sub.2 O is water of hydration additional to water notionally present when R is H, and having an X-ray pattern substantially as set out in Tables 1 and 2 is prepared from a reaction mixture containing XO.sub.2 (preferably silica), Y.sub.2 O.sub.3 (preferably alumina) and a dicationic alkylated polymethylene diamine. The new zeolite is useful in catalytic processes, especially xylenes isomerization.

Abstract: A synthetic zeolite material, designated zeolite EU-4, having a molar composition expressed by the formula:O to M.sub.2 O:aY.sub.2 O.sub.3 :at least 100 XO.sub.2 :0 to 35 H.sub.2 Owherein M is a monovalent cation or 1/n of a cation of valency n, a is from 0 to 9, X is silicon and/or germanium, Y is one or more of aluminum, iron, chromium, vanadium, molybdenum, arsenic, antimony, manganese, gallium or boron, and H.sub.2 O is water of hydration additional to water notionally present when M is H, and having a defined X-ray diffraction pattern is prepared from an aqueous reaction mixture containing the oxide XO.sub.2, optionally the oxide Y.sub.2 O.sub.3 and an alkyltrimethylammonium or dialkyldimethylammonium compound.Zeolite EU-4 is a useful catalyst for methanol conversion and the like.

Abstract: The process comprises isomerization, in the liquid or vapor phase, of a feed comprising a xylene or mixture of xylenes and optionally also containing up to 25% ethylbenzene using a catalyst comprising a novel crystalline aluminosilicate zeolite Nu-5.

Abstract: A synthetic zeolite material, designated zeolite Nu-5, having a molar composition expressed by the formula; 0.5 to 1.5 R.sub.2 O: Y.sub.2 O.sub.3 : at least 10 XO.sub.2 : 0 to 2000 H.sub.2 O wherein R is a monovalent cation or 1/n of a cation of valency n, X is silicon and or germanium, Y is one or more of aluminium, iron, chromium, vanadium, molybdenum, arsenic, manganese, gallium or boron, and H.sub.2 O is water of hydration additional to water notionally present when R is H, and having a defined X-ray diffraction pattern. Zeolite Nu-5 is a useful catalyst.

Abstract: The process comprises isomerization, in the liquid or vapour phase, of a feed comprising a xylene or mixture of xylenes and optionally also containing up to 25% ethylbenzene using a catalyst comprising a novel crystalline aluminosilicate zeolite Nu-6(2).

Abstract: New zeolite materials designated Nu-6(1) and Nu-6(2), having molar compositions expressed by the formula:0.5 to 1.5 R.sub.2 O:Y.sub.2 O.sub.3 :at least 10 XO.sub.2 :0 to 2000 H.sub.2 Owherein R is a monovalent cation or .sup.1 /n of a cation of valency n, X is silicon, and/or germanium, Y is one or more of aluminum, iron, chromium, vanadium, molybdenum, antimony, arsenic, manganese, gallium or boron, and H.sub.2 O is water of hydration additional to water notionally present when R is H and having defined X-ray diffraction patterns, are prepared from a reaction mixture containing XO.sub.2 (preferably silica), Y.sub.2 O.sub.3 (preferably alumina) and a 4,4'-bipyridyl compound. At temperatures of 200.degree. C. or higher, Nu-6(1) is converted to Nu-6(2), a useful catalyst for xylenes isomerization and the like.

Abstract: Hydrocarbons e.g. toluene and oxyhydrocarbons e.g. methanol are converted to other hydrocarbons by being contacted under conversion conditions with a catalyst comprising zeolite Nu-5.

Abstract: A new zeolite material designated Nu-3 having a molar composition expressed by the formula:0.5 to 1.5R.sub.2 O:Y.sub.2 O.sub.3 :at least 5XO.sub.2 :0 to 400H.sub.2 Owherein R is a monovalent cation or 1/n of a cation of valency n where n is a whole number of 2 or more, X is silicon and/or germanium, Y is one or more of aluminium, iron or gallium and H.sub.2 O is water of hydration additional to water notionally present when R is H, and having an X-ray diffraction pattern substantially as shown in Table 1, is prepared from a reaction mixture containing XO.sub.2 (preferably silica), Y.sub.2 O.sub.3 (preferably alumina) and an optionally substituted quinuclidinium ion.

Abstract: A feedstock comprising a hydrocarbon containing 2 or more carbon atoms in the molecule and/or a hydrocarbon derivative containing hydrogen-carbon links is converted to olefins over the zeolite NU-3. When in particular the feedstock is methanol or dimethyl ether olefins are formed with high selectivity against formation of aromatics.

Abstract: A silica-containing material related to zeolites and referred to hereinafter as FU-1 has the composition 0.6 to 1.4 R.sub.2 O.Al.sub.2 O.sub.3.over 5 SiO.sub.2.O to 40 H.sub.2 O, (where R is a monovalent cation or 1/n of a cation of valency n) and is characterized inter alia by its X-ray diffraction pattern. It can be made by hydrothermal synthesis in presence of methylated quaternary onium compounds. It is useful as a catalyst for hydrocarbon conversion reactions, especially isomerization of xylenes.

Abstract: Whereas previously zeolites of the ZSM-5 family have been synthesized in reaction mixtures in which the presence of alkylammonium ions was considered to be essential, the use of such ions can be avoided if the mixture contains a seed zeolite having a port diameter in the range 5.8 to 7.0. The seed zeolite need not be a member of the ZSM-5 family but can be, for example zeolite nu-1 which has a distinctly different structure. The reaction mixture preferably is limited in alkalinity and preferably contains strong acid anions.

Abstract: A silica-containing material related to zeolites and referred to hereinafter as FU-1 has the composition 0.6 to 1.4 R.sub.2 O.Al.sub.2 O.sub.3.over 5 SiO.sub.2.O to 40 H.sub.2 O, (where R is a monovalent cation or 1/n of a cation of valency n) and is characterized inter alia by its X-ray diffraction pattern. It can be made by hydrothermal synthesis in presence of methylated quaternary onium compounds. It is useful as a catalyst for hydrocarbon conversion reactions, especially isomerization of xylenes.

Abstract: A catalyst for hydrocarbon conversion contains a silica-containing material having a plate or sheet morphology, for example "FU-1" and a material having catalytic activity for hydrocarbon conversion, for example rare-earth exchanged zeolite Y. The catalyst is especially suitable for cracking heavy fractions to naphtha-type products, apparently because the plate or sheet material provides channels by which large molecules can gain access to active centers in the catalyst.

Abstract: Olefins are produced by reacting a feedstock containing a hydrocarbon containing 2 or more carbon atoms in the molecule and/or a hydrocarbon derivative containing hydrogen-carbon links over a catalyst comprising "FU-1," which is a zeolite-like silica-containing material characterized inter alia by chemical composition and X-ray diffraction pattern. The feedstock is preferably methanol or dimethyl ether. The predominant olefin product can be controlled according to the reaction conditions used. Conversion to aromatics is very low.