Honeywell International Inc.

Alliedsignal Inc.

The Chemours Company Fc, LLC

Solstice Advanced Materials Us, Inc.

Yuon Chiu

Haluk Kopkalli

Hsueh Sung Tung

Stephen A Cottrell

Haiyou Wang

Gustavo Cerri

Daniel C Merkel

Richard Durick Horwath

Terris Yang

Christian Jungong

Richard Wilcox

Peter Scheidle

Tao Wang

John Joseph Senetar

Selma Bektesevic

Kevin D Uhrich

George R Cook

Robert A Smith

Merwyn E Howells

Carlos Navar

Gus Cerri

Orlando George Rodrigues

Mario Joseph Nappa

Hang Thanh Pham

Konstantin A Pokrovski

Haridasan K Nair

Xuehui Sun

Addison Miles Smith

HsuehSung Tung

Jeffrey Warren McKown

Paul Gene Clemmer

Jason T Stuck

Ron Joseph Roof

Stanley Michael Jaskot

Jay Philip Friedenson

Nemesio Rogelio Viso

Kevin Uhrich

Biju Z Perincheril

Kevin D Ulrich

William James Hague

David C Merkel

Jeffrey A Ball

Philip L Da Prato

Jeffrey Ball

A method of removing water from a mixture of iodine (I) and water includes providing a mixture comprising iodine and water and: contacting the mixture with an adsorbent to selectively adsorb water from the mixture, contacting the mixture with a concentrated acid to absorb water from the mixture, separating the water from mixture by distillation, contacting the mixture with a gas that is inert to iodine (I), contacting the mixture with hydrogen iodide (HI), or combinations thereof.

Methods for removing water from iodine (I2)

Methods of recovering iodine (I) from a stream including iodine (I) vapor and at least one of: an inert gas and water vapor can include contacting the stream with an alkaline solution to form an iodide salt, contacting the stream with an adsorbent to selectively adsorb water from the stream, contacting the stream with a concentrated acid to absorb the water vapor from the stream, desublimating or condensing the iodine (I) vapor to form solid or liquid iodine (I), or contacting the stream with a material to condense or de-sublimate the iodine (I) vapor from the stream as the material at least one of: absorbs latent heat through a phase change of the material and absorbs sensible heat.

Methods for recovering iodine (I2)

A process for making 2,3,3,3-tetrafluoropropene (HFO-1234yf) includes providing a composition including 2-chloro-1,1,1,2-tetrafluoropropane (HCFC-244bb) to a reactor including a heater surface at a surface temperature greater than about 850° F. (454° C.), and then bringing the composition into contact with the heater surface for a contact time of less than 10 seconds to dehydrochlorinate a portion of the HCFC-244bb to make HFO-1234yf.

Method for dehydrochlorination of HCFC-244BB to manufacture HFO-1234YF

The present invention provides a process for producing hydrogen iodide. The process includes providing a vapor-phase reactant stream comprising hydrogen and iodine and reacting the reactant stream in the presence of a catalyst to produce a product stream comprising hydrogen iodide. The catalyst includes at least one selected from the group of nickel, cobalt, iron, nickel oxide, cobalt oxide, and iron oxide. The catalyst is supported on a support.

Integrated process and catalysts for manufacturing hydrogen iodide from hydrogen and iodine

A process for making 2,3,3,3-tetrafluoropropene (HFO-1234yf) includes providing a composition including 2-chloro-1,1,1,2-tetrafluoropropane (HCFC-244bb) to a reactor including a heater surface at a surface temperature greater than about 850&#xb0; F. (454&#xb0; C.), and then bringing the composition into contact with the heater surface for a contact time of less than 10 seconds to dehydrochlorinate a portion of the HCFC-244bb to make HFO-1234yf.

Method for dehydrochlorination of HCFC-244bb to manufacture HFO-1234yf

The invention provides a reactor comprising a reaction chamber having a catalytic surface in contact with reactants in said chamber, and a source for passing electrical current through said catalytic surface. The reactor can be used for dehydrohalogentation reactions, such as dehydrochlorination of HCFC-244bb to HFO-1234yf and for reactions where zero valent metals are employed for catalysis. The invention further provides a process to prepare HFO-1234yf from HCFC-244bb using an electrically heated reaction chamber.

Dehydrohalogenation reactor and process

The present disclosure provides a process for producing trifluoroiodomethane (CFI). The process may include providing a vapor-phase reactant stream comprising trifluoroacetic acid and iodine and reacting the reactant stream in the presence of a catalyst to produce a product stream comprising the trifluoroiodomethane. The catalyst includes silicon carbide.

Catalysts and integrated processes for producing trifluoroiodomethane

A process for the manufacture of halogenated olefins in semi-batch mode by dehydrohalogenation of halogenated alkanes in the presence of an aqueous base such as KOH which simultaneously neutralizes the resulting hydrogen halide. During the process, aqueous base is continuously added to the haloalkane which results in better yields, lower by-product formation and safer/more controllable operation.

Process for dehydrohalogenation of halogenated alkanes

In certain aspects, the present invention relates to methods for increasing the cost efficiency and safety of the hydrogenation of a fluorinated olefin by controlling the reaction conditions and parameters. In further aspects, the hydrogenation reaction is provided in a two stage reaction wherein the reactant amounts, temperature and other parameters are controlled such that the conversion percentage, selectivity, and reaction parameters are all within commercially acceptable levels.

Process for the manufacture of fluorinated olefins

The present disclosure provides various manufacturing processes for the production of 2,3,3,3-tetrafluoropropene (HFO-1234yf or 1234yf). Such methods may allow for the improved yields, more economical processes, and waste reduction in the production of 1234yf and subsequent processes.

Systems and methods for reducing the formation of impurities during 244bb dehydrochlorination to 1234yf

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.

Process for producing 2,3,3,3-tetrafluoropropene

A method for producing 1,1,1,2-tetrafluoropropene and/or 1,1,1,2,3-pentafluoropropene using a single set of four unit operations, the unit operations being (1) hydrogenation of a starting material comprising hexafluoropropene and optionally recycled 1,1,1,2,3-pentafluoropropene; (2) separation of the desired intermediate hydrofluoroalkane, such as 1,1,1,2,3,3-hexafluoropropane and/or 1,1,1,2,3-pentafluoropropane; (3) dehydrofluorination of the intermediate hydrofluoroalkane to produce the desired 1,1,1,2-tetrafluoropropene and/or 1,1,1,2,3-pentafluoropropene, followed by another separation to isolate the desired product and, optionally, recycle of the 1,1,1,2,3-pentafluoropropene.

The present disclosure provides separation processes that use azeotropic or azeotropic-like compositions of 1-chloro-3,3,3-trifluoropropene (HCFO-1233zd) that allow for improved recovery rates of 1-chloro-3,3,3-trifluoropropene during or after manufacturing processes. Such recovery or separation processes can utilize the unique properties of azeotropic or azeotropic-like composition with various combinations of separation techniques (e.g., distillation and decanting) that yield highly pure compositions of 1-chloro-3,3,3-trifluoropropene and simultaneously offer high yields of 1-chloro-3,3,3-trifluoropropene. Such highly pure compositions of 1-chloro-3,3,3-trifluoropropene may find useful applications in polymer technology as monomers or comonomers.

Process for drying HCFO-1233zd

Disclosed is a process for the manufacture of 1234yf from 1,1,2,3-tetrachloropropene, abbreviated herein as 'TCP,' in three integrated steps: wherein the vapor phase hydrofluorination of TCP in step (a) is carried out at a higher pressure than the liquid phase hydrofluorination of 1233xf; and wherein the HC1 generated during these steps is scrubbed with water to form an acid solution and the organic components are scrubbed with a caustic solution and then dried before further processing.

Methods of making 2,3,3,3-tetrafluoro-2-propene

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Denville, NJ, United States of America

Yuon Chiu