Examples of 'dealuminated' in a sentence
Meaning of "dealuminated"
Dealuminated is a verb that refers to the process of removing or reducing the aluminum content in a material or substance. It is commonly used in the field of chemistry or materials science
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- simple past tense and past participle of dealuminate
- That has been treated in a dealumination process
How to use "dealuminated" in a sentence
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dealuminated
Stabilized and dealuminated omega zeolite.
These clays can also be dealuminated.
The dealuminated acid mordenite thus obtained is a hydrogen form mordenite.
Calcium cation exchanged dealuminated small pore mordenite catalysts.
Preferably the surface of the zeolite crystallites are selectively dealuminated.
The catalyst may be in the form of dealuminated mordenite or faujasite.
The zeolite present in the catalyst of the invention may also be dealuminated.
It appears that the catalyst based on dealuminated beta zeolite shows the best performances.
One of the zeolites preferred according to the invention is a stabilized and dealuminated offretite.
By a dealuminated mordenite is meant a mordenite which has had aluminium removed from its framework.
Dewaxing process employing a catalyst with a highly dealuminated mordenite base.
Preparation of a dealuminated zeolite used as base of catalyst B.
One of the preferred zeolites of the present invention is stabilized and dealuminated offretite.
Preparation of an extensively dealuminated zeolite used as base of catalyst D.
Steaming however does not result in that the surface of the crystallite is selectively dealuminated.
See also
Forming said dealuminated zeolite with a matrix ;.
Preferred acidic zeolites for this invention are beta zeolite and dealuminated mordenite.
These dealuminated omega zeolites also have the following advantages,.
In another the alkaline treatment is performed on a previously dealuminated zeolite in its hydrogen form.
Contacting said dealuminated molecular sieve particles with an alumoxane co-catalyst ;.
In another preferred embodiment the said mordenite catalyst is prepared from a dealuminated large pore mordenite.
In the subsequent step, the dealuminated aluminosilicates is treated with a liquid medium.
Process for mild hydrocracking of petroleum cuts using a catalyst containing at least two dealuminated Y zeolites.
Preparation of a zeolite dealuminated to a small extent, forming the base of the catalyst A.
Preparation of a support containing a non dealuminated Y zeolite.
Decationized, dealuminated and stabilized I zeolite and use thereof.
Preparation of hydrocracking catalysts containing a non dealuminated Y zeolite.
The micropore and mesopore volumes of said dealuminated USY zeolite are measured by nitrogen adsorption / desorption.
Preparation of catalysts containing a small amount of non dealuminated Y zeolite.
Example 1 A surface dealuminated ferrierite catalyst was prepared according to the following procedure.
Preparation of a support containing a small amount of non dealuminated Y zeolite.
A dealuminated zeolite of omega ( or mazzite ) structure characterized by,.
There are three general methods for preparing dealuminated Y zeolites.
Thus dealuminated IM-5 zeolites exhibit catalytic activity.
Such a zeolite is advantageously partially dealuminated and vapour-treated.
This modification allows the production of zeolites which are called stabilized, ultra-stabilized or also dealuminated.
The invention concerns a new stabilized and dealuminated zeolite of OMEGA structure, characterized by,.
Catalyst according to claim 1, wherein the zeolite is at least in part dealuminated.
Preparation of catalysts containing a non dealuminated Y zeolite and a silica-alumina.
Preferably, the mordenite to be treated with aqueous ammonium hydroxide solution is a dealuminated mordenite.
Preparation of a support containing non dealuminated Y zeolite and a silica-alumina.
This modification can produce zeolites termed stabilized, ultra-stabilized or dealuminated zeolites.
EXAMPLE 3 Preparation of an extensively dealuminated zeolite used as base of catalyst C.
Process for cracking hydrocarbon feeds using a catalyst comprising an IM-5 zeolite which is optionally dealuminated.
Washing and drying completes the preparation of our stable dealuminated Y zeolite of very low a ₀ value.
EXAMPLE 1 A dealuminated ZSM-5 catalyst was prepared according to the following procedure.
The process of claim 1 wherein the mordenite is a dealuminated large pore mordenite.
Catalyst according to claim 1, wherein the beta zeolite is dealuminated.
Process according to claim 10, in which the dealuminated aluminosilicate is dealuminated zeolite Y.
The method in accordance with claim 5, wherein said source zeolite is dealuminated Y zeolite.
