Examples of 'fluorination catalyst' in a sentence
Meaning of "fluorination catalyst"
fluorination catalyst: This phrase refers to a substance or agent that initiates or speeds up the process of adding fluorine to a compound or material for chemical reactions
How to use "fluorination catalyst" in a sentence
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Advanced
fluorination catalyst
Any suitable fluorination catalyst can be used.
The reactor is preferably an adiabatic reactor filled with a fluorination catalyst.
The fluorination catalyst is preferably a chromium salt.
Chromia based fluorination catalyst.
A fluorination catalyst was obtained by heat treating the chromium hydroxide.
The gas phase reaction is carried out in the presence of a fluorination catalyst.
The most preferred fluorination catalyst is antimony pentachloride.
The presence of water in the reaction tends to deactivate the fluorination catalyst.
The fluorination catalyst may be subjected to an activation via a heat treatment.
Any substantially pure liquid phase fluorination catalyst may be used in the invention.
The fluorination catalyst may also be a catalyst based on chromium and zinc.
The reaction is preferably conducted in the presence of a suitable pentavalent antimony fluorination catalyst.
Mixed fluorination catalyst.
The starting material of the inventive process typically comprises a spent fluorination catalyst.
Any liquid phase fluorination catalyst may be used in the invention.
See also
Chlorinated by-products can be formed also in side reactions with the fluorination catalyst.
The fluorination catalyst used in the second stage of the process is thus obtained.
Field of the Invention This invention relates to a fluorination catalyst and a fluorination process.
Any fluorination catalyst may be suitable for the process of the present invention.
In another embodiment, the fluorination catalyst is antimony pentachloride.
The fluorination catalyst shows substantially no crystallizability characteristic of chromium oxide before or during fluorination.
The process of claim 7 wherein the fluorination catalyst is chromium oxide.
The fluorination catalyst tends to decrease in surface área when used for the fluorination.
Process according to claim 8, wherein the fluorination catalyst is based on chromium.
Catalyst The fluorination catalyst used in the present invention is unsupported.
In case of a vapor phase process, the reactor is filled with a vapor phase fluorination catalyst.
Any well known vapor phase fluorination catalyst may be used in the fluorination reaction.
However, preferably, the fluorination is a gas-phase fluorination, in the presence of a fluorination catalyst.
Any known vapor phase fluorination catalyst may be used in the process of this invention.
The temperature at which the organics, hydrogen fluoride and fluorination catalyst are reacted is critical.
First, the fluorination catalyst is charged into a reactor.
The subject-matter of the present invention is a mixed fluorination catalyst based on nickel and chromium.
The fluorination catalyst may in particular be a chromium-based catalyst.
A process according to claim 1 wherein the fluorination catalyst is an activated chromium oxide catalyst.
The fluorination catalyst may also be a nickel-based catalyst.
A process as claimed in claim 6 wherein the fluorination catalyst is a zinc promoted chromia catalyst.
The fluorination catalyst is activated with a fluorine-containing compound, preferably hydrogen fluoride.
The process of any preceding claim wherein said fluorination catalyst is chrome ( III ) oxide.
Preferably, the fluorination catalyst is an antimony containing compound, more preferably, a pentavalent antimony compound.
The process of claim 1 wherein the fluorination catalyst is SbCl5.
A fluorination catalyst comprising indium, chromium, oxygen and fluorine as essential constituent elements thereof.
A process according to claims from 1 to 4, wherein the fluorination catalyst is a chromium salt.
After contacting the fluorination catalyst with the oxidizing agent-containing gas flow.
The process of Claim 1, wherein step ( a ) is a vapor phase reaction using a fluorination catalyst.
A chromia-based fluorination catalyst consisting of:.
The empty reactor was first charged with 84.3 grams of SbCl5 liquid fluorination catalyst.
The fluorination catalyst for the experiment was fluorinated Cr2O3.
The process of one of claims 1 to 9, wherein the fluorination catalyst is an unsupported catalyst.
The process of claim 3 wherein the fluorination catalyst is selected from SnCl4 and TiCl4.
The process of any of claims 1 to 8 wherein the fluorination catalyst is chrome ( III ) oxide.
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