초록 ▼

An improved process for preparing ZSM-22 zeolite is disclosed and claimed. The process comprises preparing a reaction mixture comprised of sources of an alkali or alkaline earth metal, alumina, silica, organic promoter and water, and having the following composition, in terms of mole ratios of oxide

An improved process for preparing ZSM-22 zeolite is disclosed and claimed. The process comprises preparing a reaction mixture comprised of sources of an alkali or alkaline earth metal, alumina, silica, organic promoter and water, and having the following composition, in terms of mole ratios of oxides: SiO2/Al2O3=20 to ∽ H2O/SiO2=10 to 100 OH-/SiO2=0 to 1.0 M+/SiO2=0 to 2.0 RN/SiO2=0.01 to 2.0 wherein RN is a functional group of a heterocyclic organic compound containing one or more four (4) to ten (10) member, saturated or unsaturated, non-fused rings, wherein the hetero atoms are the same or different, and they are oxygen, phosphorus or nitrogen, an alkyl and/or alkene derivative of the heterocyclic organic compound, wherein the alkyl and/or alkene groups contain one (1) to ten (10) carbon atoms, or an organic or inorganic salt of the heterocyclic organic compound or its alkyl or alkene derivative, 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.

대표청구항 ▼

A process for preparing a siliceous porous crystalline ZSM-22 zeolite material having the x-ray diffraction pattern of Table I, which comprises preparing a reaction mixture capable of forming said ZSM-22 zeolite material, said reaction mixture comprising sufficient sources of an alkali or alkaline e

A process for preparing a siliceous porous crystalline ZSM-22 zeolite material having the x-ray diffraction pattern of Table I, which comprises preparing a reaction mixture capable of forming said ZSM-22 zeolite material, said reaction mixture comprising sufficient sources of an alkali or alkaline earth metal, alumina, silica, RN and water, said sources having a composition, in terms of mole ratios, encompassed within the following ratios; SiO2/Al2O3=20 to ∽ H2O/SiO2=10 to 100 OH-/SiO2=0 to 1.0 M+/SiO2=0 to 2.0 RN/SiO2=0.01 to 2.0 wherein RN is an N-ethylpyridinium cation and M is an alkali or alkaline earth metal, and maintaining the mixture at sufficient crystallization conditions until crystals of said zeolite are formed.