B01J27/12

PROCESS FOR PRODUCING 2,3,3,3-TETRAFLUOROPROPENE

The present invention relates, in part, to the discovery that, during the fluorination of certain fluoroolefin starting reagents, oligomerization/polymerization of such reagents reduces the conversion process and leads to increased catalyst deactivation. The present invention also illustrates that vaporizing such starting reagents in the presence of one or more organic co-feed reduces such oligomerization/polymerization and improves catalytic stability.

Fluorinated catalyst supports and catalyst systems

Catalyst systems and methods for making and using the same. A method for making a catalyst support includes forming a mixture of a support material and a fluoride donor. The mixture is added to a fluidized bed reactor. The mixture is fluidized to form a fluidized bed while maintaining a flow rate of a fluidizing gas of about 0.1 ft./sec at less than about 370 C. and greater than about 0.35 ft./sec at temperatures greater than about 370 C. The mixture is calcined to decompose the fluoride donor, forming a fluorinated support.

OXYFLUORIDES, ELECTRODES CONTAINING THEM AND THEIR USE FOR HYDROGEN PRODUCTION

Oxyfluoride derivatives and their preparation, as well as their uses as catalysts in electrochemistry, including the electrodes and electrochemical cells comprising them. These may be useful for hydrogen production.

Process for the preparation of fluorinated peroxides

The present invention relates to the preparation of perfluorinated or partially fluorinated peroxides which avoids the use of carbonyl fluoride (COF.sub.2).

Process for the preparation of fluorinated peroxides

The present invention relates to the preparation of perfluorinated or partially fluorinated peroxides which avoids the use of carbonyl fluoride (COF.sub.2).

Methods for the Preparation and Use of Suspensions of Chemically-Treated Solid Oxides in an Olefin-Derived Liquid Medium
20190077727 · 2019-03-14 ·

The present invention discloses processes for oligomerizing an olefin feedstock containing C.sub.4 to C.sub.20 alpha olefins using a catalyst system containing a metallocene compound, an organoaluminum compound, and a suspension of a chemically-treated solid oxide. The liquid medium for the suspension of the chemically-treated solid oxide can be an alpha-olefin oligomer product formed by the oligomerization process.

Aromatization catalyst preparation with alkali metal present during a washing step

Methods for producing supported catalysts containing a transition metal and a bound zeolite base are disclosed. These methods employ a step of washing the bound zeolite base in the presence of an alkali metal, prior to impregnating the bound zeolitic support with the transition metal. Alkali metals such as potassium and cesium may be used.

Fluorinated catalyst supports and catalyst systems

Catalyst systems and methods for making and using the same. A method for making a catalyst support includes forming a mixture of a support material and a fluoride donor. The mixture is added to a fluidized bed reactor. The mixture is fluidized to form a fluidized bed while maintaining a ratio of a pressure drop across a distributor plate to a pressure drop across the fluidized bed of greater than about 7%. The mixture is calcined to decompose the fluoride donor, forming a fluorinated support.

Fluorinated catalyst supports and catalyst systems

Catalyst systems and methods for making and using the same. A method for making a catalyst support includes forming a mixture of a support material and a fluoride donor. The mixture is added to a fluidized bed reactor. The mixture is fluidized to form a fluidized bed with a height to diameter ratio of at least about 2.3. The mixture is calcined to decompose the fluoride donor, forming a fluorinated support.

PROCESS FOR PRODUCING CHLOROTRIFLUOROETHYLENE
20190002374 · 2019-01-03 ·

The present invention relates, at least in part, to a process for making chlorotrifluoroethylene (CFO-1113) from 1,2-dichloro-1,1,2-trifluoroethane (HCFC-123a). In certain aspects, the process includes dehydrochlorinating 1,2-dichloro-1,1,2-trifluoroethane (HCFC-123a) in the presence of a catalyst selected from the group consisting of (i) one or more metal halides; (ii) one or more halogenated metal oxides; (iii) one or more zero-valent metals or metal alloys; (iv) combinations thereof.