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US 4,902,406 AGranted
Synthesis of zeolite ZSM-22
AssigneeMobil Oil Corporation
InventorErnest W. Valyocsik
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AssigneeMobil Oil Corporation
InventorErnest W. Valyocsik
Estimating the term…
A process for preparing a new zeolite, designated ZSM-22, is disclosed and claimed. The process comprises preparing a reaction mixture comprised of sources of an alkali or alkaline earth metal, alumina, silica, alkane diamine and water, and having the following composition, in terms of mole ratios of oxides: ______________________________________ SiO.sub.2 /Al.sub.2 O.sub.3 = 20 to .infin. H.sub.2 O/SiO.sub.2 = 10 to 100 OH.sup.- /SiO.sub.2 = 0 to 0.3 M.sup.+ /SiO.sub.2 = 0 to 2.0 RN/SiO.sub.2 = 0.01 to 2.0 ______________________________________ wherein RN is a C.sub.2 -C.sub.12 alkane diamine of the formula H.sub.2 N--(CH.sub.2).sub.n --NH.sub.2, wherein n=2 to 10, and M is an alkali or alkaline earth metal, e.g., Na, K, Cs, Li, Ca or Sr, and maintaining the reaction mixture at crystallization conditions until crystals of the ZSM-22 zeolite are formed.
A process for preparing a siliceous porous crystalline ZSM-22 zeolite material having the X-ray diffraction pattern of Table 1, which material is substantially 100% ZSM-22, which process comprises preparing a reaction mixture capable of forming said crystalline ZSM-22, said reaction mixture being comprised of sources of an alkali or alkaline earth metal, alumina, silica, RN and water, and having the following composition, in terms of moles ratios of oxides:
A catalytic process employing a catalyst comprising a siliceous porous crystalline ZSM-22 zeolite material having a composition, expressed in terms of moles of anhydrous oxides, as follows:
A hydrocarbon conversion process using as catalyst a composition comprising a siliceous porous crystalline ZSM-22 zeolite material having a composition, expressed in terms of moles of anhydrous oxides, as follows:
A process for cracking hydrocarbons using as a catalyst a composition comprising a siliceous porous crystalline ZSM-22 zeolite material having a composition, expressed in terms of moles of anhydrous oxides, as follows:
A siliceous porous crystalline ZSM-22 zeolite material having a calculated composition, in terms of moles of oxides, after dehydration, per 100 moles of silica, as follows:
A process for preparing a siliceous porous crystalline ZSM-22 zeolite material, which process comprises the steps of:
A hydrocarbon conversion process which comprises contacting a hydrocarbon charge under hydrocarbon converting conditions with a crystalline material which is a siliceous porous crystalline ZSM-22 zeolite material having, as synthesized, a calculated composition, expressed in terms of moles of anhydrous oxides, as follows:
Dependencies are inferred from the claim text.