摘要:
Xylene and ethylbenzene isomerization process is catalyzed by the UZM-35 family of crystalline aluminosilicate zeolitic compositions represented by the empirical formula: Mmn+Rr+Al(1-x)ExSiyOz where M represents a combination of potassium and sodium exchangeable cations, R is a singly charged organoammonium cation such as the dimethyldipropylammonium cation and E is a framework element such as gallium. These UZM-35 zeolitic compositions are active and selective in the isomerization of xylenes and ethylbenzene.
摘要:
Xylene and ethylbenzene isomerization process is catalyzed by the UZM-35 family of crystalline aluminosilicate zeolites represented by the empirical formula: Mmn+Rr+Al(1-x)ExSiyOz where M represents a combination of potassium and sodium exchangeable cations, R is a singly charged organoammonium cation such as the dimethyldipropylammonium cation and E is a framework element such as gallium. These UZM-35 zeolites are active and selective in the isomerization of xylenes and ethylbenzene.
摘要:
A process is disclosed using a new catalyst for use in the alkylation of benzene with a substantially linear olefin. The catalyst allows for cation exchange with a rare earth element to increase the alkylation of benzene, while reducing the amount of isomerization of the alkyl group. This is important for increasing the quality of the alkylbenzene by increasing the linearity of the alkylbenzene.
摘要:
A new family of crystalline aluminosilicate zeolites has been synthesized. These zeolites are represented by the empirical formula. Mmn+Rr+Al(1-x)ExSiyOz where M represents a combination of potassium and sodium exchangeable cations, R is a singly charged organoammonium cation such as the dimethyldipropylammonium cation and E is a framework element such as gallium. These zeolites are similar to MCM-68 but are characterized by unique x-ray diffraction patterns and compositions and have catalytic properties for carrying out various hydrocarbon conversion processes.
摘要:
Catalytic cracking processes such as fluidized catalytic cracking, naphtha cracking, and olefin cracking are catalyzed by the UZM-35 family of crystalline aluminosilicate zeolites represented by the empirical formula: Mmn+Rr+Al(1-x)ExSiyOz where M represents a combination of potassium and sodium exchangeable cations, R is a singly charged organoammonium cation such as the dimethyldipropylammonium cation and E is a framework element such as gallium. These UZM-35 zeolites are active and selective in the catalytic cracking of hydrocarbons.
摘要:
Applicants have synthesized a family of microporous aluminosilicate zeolites and substituted versions thereof which are identified as UZM-8. These new compositions can be prepared using either only one or more organoammonium cations, such as diethyldimethylammonium or ethyltrimethylammonium cations and optionally an alkali and/or an alkaline earth cation as structure directing agents. The UZM-8 compositions are described by an empirical formula of Mmn+Rrp+Al1-xExSiyOz and have a unique x-ray diffraction pattern.
摘要:
Applicants have synthesized a new aluminosilicate zeolite identified as UZM-9. This new zeolite has the LTA topology and has an empirical formula of: Mmn+Rrp+Al1-xExSiyOz where M is an alkali or alkaline earth metal ion, R is at least two organic ions, at least one of which has an organic group with at least two carbon atoms and E can be gallium, iron, boron and mixtures thereof. The Si/Al ratio can range from greater than 3.5 to about 6.0.
摘要翻译:申请人合成了一种被认定为UZM-9的新型硅铝酸盐沸石。 这种新沸石具有LTA拓扑结构,并且具有以下经验式:其中M是碱金属或碱土金属离子,R是至少两个有机离子,其中至少一个具有至少两个碳原子的有机基团,E 可以是镓,铁,硼及其混合物。 Si / Al比可以在大于3.5至约6.0的范围内。
摘要:
A new family of crystalline alumino-silicate zeolites has been synthesized. These zeolites are represented by the empirical formula. Mmn+Rrp+Al(1−x)ExSiyOz where M is an alkali or alkaline earth metal such as lithium and strontium, R is a nitrogen containing organic cation such as tetramethyl ammonium and E is a framework element such as gallium. They are also characterized by unique x-ray diffraction patterns and have catalytic properties for carrying out various hydrocarbon conversion processes.
摘要:
A process for transalkylating a polyalkylated aromatic compound with a non-alkylated aromatic compound using a new family of related crystalline aluminosilicate zeolites has been developed. These zeolites are represented by the empirical formula: Mmn+Rrp+Al(1−x)ExSiyOz where M is an alkali or alkaline earth metal such as lithium and strontium, R is a nitrogen containing organic cation such as tetramethyl-ammonium and E is a framework element such as gallium.
摘要:
A reforming process, selective for the dehydrocyclization of paraffins to aromatics, is effected using a large-pore molecular-sieve catalyst containing a uniformly distributed platinum-group metal component, and a tin component incorporated into the large-pore molecular sieve by secondary synthesis. The use of this catalyst results in greater selectivity of conversion of paraffins to aromatics and in improved catalyst stability.