Air Products and Chemicals, Inc.

Arkema Inc.

Robert George Syvret

Craig Alan Polsz

Gauri Sankar Lal

Beth Ann Campion

Manchao Xiao

Thomas R Gaffney

Philip Bruce Henderson

Steven Gerard Mayorga

Donald Elson Fowler

Anne Marie Pigamo

Guido Peter Pez

Kristen Elaine Minnich

William Jack Casteel, Jr

Sri Ram Seshadri

Frederick Carl Wilhelm

Wade Hampton Bailey, Iii

Andrew Joseph Woytek

James Joseph Hart

Vijay R Srinivas

Patrick Kendall Janney

Reno Joseph Pesaresi, Jr

Joan M Schork

Dana L Swan

Frank Michael Prozonic

Dana Lee Swan

Gregory Alan Cooper

Frederick Carl Wilheim

Victoria Lee Bulleck

Tung Phuong Nguyen

Ryan Dennis Rieth

Daniel Alford, Jr

Jr Daniel Alford

Joan Marie Schork

Thomas Richard Gaffney

Reno Joseph Pesaresi

A method of making CFCHSH, comprising a step of reacting CFCHX, wherein X is halide or tosylate, with MSH, where M is an alkali metal such as Na or K, to yield CFCHSH.

Synthesis of 2,2,2-trifluoroethanethiol

Novel fluorosilicon nitrile compounds, and methods of preparing them, are described. The fluorosilicon nitrile compounds are characterized by having a total of four substituents attached to a silicon atom, wherein one or two of the substituents are fluorine atoms, one or two of the substituents are cyanoalkyl groups, which are the same as or different from each other, and the remainder of the substituents, if any, are alkyl groups, which are the same as or different from each other.

Fluorosilicon nitrile compounds

Methods of synthesizing fluorosilanes containing cyano-substituted alkyl groups are provided. For example, 3-cyanopropyldimethylfluorosilane may be produced by reacting tetramethyldisiloxane and boron trifluoride to obtain fluorodimethylsilane and then reacting the fluorodimethylsilane with allyl cyanide, in the presence of a hydrosilylation catalyst.

Preparation of fluorosilicon compounds

The present disclosure relates to catalyzed gas-phase dehydrochlorination of a pentachloropropane to form a tetrachloropropene with high selectivity and purity.

Process for making tetrachloropropene by catalyzed gas-phase dehydrochlorination of pentachloropropane

A fluorination catalyst such as a chromium oxide-based fluorination catalyst may be activated or reactivated by contacting the catalyst. with a source of reactive fluorine, for example nitrogen trifluoride (NF3) or fluorine (F2). Fluorinated compounds may be prepared by the gas phase reaction of hydrogen fluoride (HF) with various substrates such as chlorinated compounds. A number of metal oxide-based catalysts have been developed for this purpose.

Activation and regeneration of fluorination catalysts, and fluorination process

Novel compositions are provided containing a compound represented by the formula YOSFor ZOSF, where: (a) Y is: (i) an organic cation other than (MeN)Sor (ii) an inorganic cation, provided that when Y is the inorganic cation, the composition further includes a complexing agent; and (b) Z is Calkyl, aryl, cycloalkyl, combinations thereof, or analogues thereof containing at least one heteroatom, provided that the compound represented by the formula ZOSFis a molecular compound. Processes of making the cationic compounds are disclosed as are processes for using the compositions containing cationic compounds in nucleophilic replacement reactions to prepare the compositions containing molecular compounds including the OSFgroup.

Oxypentafluorosulfate compositions and processes for making them

Provided are methods for producing pentahalosulfur peroxides and monoxides, such as bis-(pentafluorosulfur) peroxide, that involve exposing a composition comprising a pentahalosulfur hypohalite, and optionally a sulfur hexahalide or trihalomethyl hypohalite, to a halogen free radical scavenger.

Synthesis of pentahalosulfur peroxides and monoxides

A process for preparing bromo-1-oxypentafluorosulfanylbenzene is provided, the process including the step of brominating pentafluorosulfanyloxybenzene with a bromination agent to provide the bromo-1-oxypentafluorosulfanylbenzene. The process is more effective than prior art processes for preparing such compounds.

Route to prepare 4-bromo-1-oxypentafluorosulfanylbenzene

The present invention is; (a) a process for stabilizing a cyclotetrasiloxane, such as 1,3,5,7-tetramethylcyclotetrasiloxane, against polymerization used in a chemical vapor deposition process for silicon oxides in electronic material fabrication comprising providing an effective amount of a free radical scavenger polymerization inhibitor to such cyclotetrasiloxane; and (b) a composition of a cyclotetrasiloxane, such as 1,3,5,7-tetramethylcyclotetrasiloxane, stabilized against polymerization used in a chemical vapor deposition process as a precursor for silicon oxides in electronic material fabrication, comprising; such cyclotetrasiloxane and a free radical scavenger polymerization inhibitor.

Stabilizers to inhibit the polymerization of substituted cyclotetrasiloxane

This invention relates generally to a improvement in a process for the purification of fluoroxy compounds, such as bis(fluoroxy)difluoromethane and fluoroxytrifluoromethane produced by the fluorination of carbon oxides. The improvement in effecting purification of the fluoroxy compounds is effected by initially selectively removing the fluorine by contacting with a crystalline zeolite and then removing the carbon oxide by selective adsorption.

Process for purifying fluoroxy compounds

A method for the production of nitrogen trifluoride from a fluorine reactant and an ammonium ion source that is dispersed within a liquid phase reaction mixture containing one or more perfluorocarbon fluids is disclosed herein. In one embodiment, the fluorine reactant is introduced to the reaction mixture at a temperature that ranges from 90&#xb0; C. to 120&#xb0; C. In this embodiment, the percentage yield of nitrogen trifluoride may be about 80% or greater.

Method for nitrogen trifluoride production

Active fluoride catalysts that are useful in producing electrophilic fluorination agents; especially useful in producing BDM from the reaction of fluorine with carbon dioxide and FTM from the reaction of fluorine with carbonyl fluoride. The fluoride catalyst comprises a mixture of two or more fluorides selected from a transition metal fluoride, an alkali metal fluoride and/or an alkaline earth metal fluoride. Alternately, the fluoride catalyst is one or more fluorides, such as alkali metal fluorides, alkaline earth metal fluorides, and/or transition metal fluorides, deposited on an inert support.

Active fluoride catalysts for fluorination reactions

An economical means of safely &ldquo;containing&rdquo; or &ldquo;packaging&rdquo; commercial electrophilic fluorination agents whereby these agents are readily stored and transported in a package, typically without loss of &ldquo;F &rdquo; activity, and in a form which is readily and directly useable, i.e., in solution or a slurry. Importantly, the solution/slurry medium provides a tremendous safety margin for storage and transportation since the solution medium has an enormous ability to absorb heat (due to the latent heat of vaporization of the liquid) relative to the contained active fluorination agent.

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Allentown, PA, United States of America

Robert George Syvret