Did You Know...
...that in the early 1940s GE engineer James Wright was charged with a task of utmost importance to the war effort: develop a cheap substitute for rubber that could be used to produce tires, gas masks and a whole host of military gear. Wright tackled the task diligently -- and wound up inventing Silly Putty.
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| Application No. | Application Title | Issue Date |
| 20120016165 | PROCESS FOR THE PRODUCTION OF DICHLOROTRIFLUOROETHANE A process for the production of dichlorotrifluoroethane is described. The process comprises reacting perchloroethylene with hydrogen fluoride in the vapour phase at elevated temperature in at least one reactor in the presence of a fluorination catalyst to produce a comp... | 01/19/2012 |
| 20120016166 | PROCESS FOR THE PRODUCTION OF DICHLOROTRIFLUOROETHANE A process for the production of dichlorotrifluoroethane is described. The process comprises reacting perchloroethylene with hydrogen fluoride (HF) at elevated temperature in the vapour phase in at least one reactor in the presence of a fluorination catalyst. The process... | 01/19/2012 |
| 20110237846 | PROCESSES FOR PRODUCING 2-CHLORO-1,1,1,2-TETRAFLUOROPROPANE AND 2,3,3,3-TETRAFLUOROPROPENE To provide processes for efficiently and economically producing 2-chloro-1,1,1,2-tetrafluoropropane (R244bb) and 2,3,3,3-tetrafluoropropene (R1234yf) in an industrially practical manner. A process for producing 2-chloro-1,1,1,2-tetrafluorop... | 09/29/2011 |
| 20110224466 | CATALYST AND PROCESS USING THE CATALYST A new chromium-containing fluorination catalyst is described. The catalyst comprises an amount of zinc that promotes activity and from 0.1 to 8.0% by weight of the chromium in the catalyst based on the total weight of the chromium is present as chromium (VI). The use of... | 09/15/2011 |
| 20110118514 | Process for the Preparation of 1,1,1,3,3,3-Hexafluoro-Propane and at Least One Of 1,1,1,2,3,3-Hexafluoropropane, Hexafluoropropane and 1,1,1,2,3,3,3-Heptafluoropropane A process is disclosed for the manufacture of 1,1,1,3,3,3-hexafluoropropane and 1,1,1,2,3,3-hexafluoropropane, hexafluoropropene and/or 1,1,1,2,3,3,3-heptafluoropropane. The process involves (a) reacting HF, Cl2, and at least one halopropene of the formula CX... | 05/19/2011 |
| 20110112340 | PROCESS The invention provides a process for the preparation of 2,3,3,3-tetrafluoropropene (1234yf) comprising (a) contacting 1,1,1-trifluoro-2,3-difluoropropane (243db) with hydrogen fluoride (HF) in the presence of a zinc/chromia catalyst to produce a compound having the form... | 05/12/2011 |
| 20110060171 | Process For The Manufacture Of Pentafluorethane The present invention relates to a process for the manufacture of pentafluoroethane. It more particularly relates to a process for the manufacture of pentafluoroethane by gas-phase fluorination of perchloroethylene (PER) in the presence of a catalyst, characterized in t... | 03/10/2011 |
| 20100331583 | METHOD FOR PROLONGING A CATALYST'S LIFE DURING HYDROFLUORINATION The invention provides an improved process to manufacture 2-chloro-1,1,1,2-tetrafluoropropane (HCFC-244bb) by reacting 2-chloro-3,3,3,-trifluoropropene (HCFO-1233xf) with hydrogen fluoride, in the presence of a fluorination catalyst, where by using 2-chloro-3,3,3,-trifl... | 12/30/2010 |
| 20100286456 | PROCESS FOR RECOVERING PENTAFLUOROETHANE, AND PRODUCTION METHOD OF PENTAFLUOROETHANE INVOLVING THE PROCESS The process for recovering pentafluoroethane of the invention includes bringing a mixed gas containing pentafluoroethane and a non-condensable gas into contact with a chlorinated solvent, and allowing the chlorinated solvent to absorb pentafluoroethane contained in the ... | 11/11/2010 |
| 20100280292 | METHOD OF RECOVERING HYDROFLUORIC ACID The present invention relates to a process for producing pentafluoroethane. More particularly, the subject of the invention is a continuous process for producing pentafluoroethane comprising (i) a step of fluorinating perchloroethylene (PER) with hydrofluoric acid, in t... | 11/04/2010 |
| 20100210884 | PROCESS FOR PRODUCING PENTAFLUOROETHANE The present invention relates to a process for producing pentafluoroethane. More particularly, the subject of the invention is a continuous process for producing pentafluoroethane comprising (i) a step of fluorinating perchloroethylene (PER) with hydrofluoric acid, in t... | 08/19/2010 |
| 20100197981 | PROCESSES FOR PRODUCING 1,2,3,3,3-PENTAFLUOROPROPENE AND PRECURSORS THEREOF A process is disclosed for making CH2ClCF2CClF2. The process involves reacting CH2ClF with CClF═CF2 in an addition reaction zone in the presence of an aluminum halide composition having a bulk formula of AlCl... | 08/05/2010 |
| 20100191025 | PROCESS FOR PREPARING (HYDRO)(CHLORO)OLEFINS The present invention relates to a process for preparing (hydro)(chloro)fluoroolefins comprising at least one step of fluorination in the liquid phase of a (hydro)haloalkane or of a (hydro)haloalkene in the presence of at least one ionic liquid as a catalyst. The ionic ... | 07/29/2010 |
| 20100168482 | PROCESSES FOR THE PRODUCTION OF FLUOROPROPANES AND HALOPROPENES A process is disclosed for making CF3CF2CH3, CF3CF═CH2 and/or CF3CCl═CH2. The process involves reacting at least one starting material selected from the group consisting of halopropanes of ... | 07/01/2010 |
| 20100168483 | Process for the Production of Pentafluoroethane A process for the production of pentafluoroethane is described. The process comprises reacting perchloroethylene with hydrogen fluoride in the vapour phase in a first reactor or a first plurality of reactors in the presence of a fluorination catalyst to produce a compos... | 07/01/2010 |
| 20100163780 | Process for Production of Dichlorotrifluoroethane A process for the production of dichlorotrifluoroethane is described. The process comprises reacting perchloroethylene with hydrogen fluoride (HP) at elevated temperature in the vapour phase in at least one reactor in the presence of a fluorination catalyst. The process... | 07/01/2010 |
| 20090326284 | METHOD FOR PRODUCING PENTAFLUOROETHANE The invention relates to a method for producing pentafluoroethane, and especially to a method comprising (i) a step during which perchloroethylene and optionally 2,2-dichloro-1,1,1-trifluoroethane and/or 2-chloro-1,1,1,2-tetrafluoroethane react(s) with hydrofluoric acid... | 12/31/2009 |
| 20090270662 | Process for the Production of Dichlorotrifluoroethane A process for the production of dichlorotrifluoroethane is described. The process comprises reacting perchloroethylene with hydrogen fluoride in the vapour phase at elevated temperature in at least one reactor in the presence of a fluorination catalyst to produce a comp... | 10/29/2009 |
| 20090259079 | Process for the Production of Dichlorotrifluoroethane A process for the production of dichlorotrifluoroethane is described. The process comprises reacting perchloroethylene with hydrogen fluoride (HF) at elevated temperature in the vapour phase in at least one reactor in the presence of a fluorination catalyst. The process... | 10/15/2009 |
| 20090209792 | Chromia Based Fluorination Catalyst A chromia-based fluorination catalyst comprising at least one additional metal selected from zinc, nickel, aluminium and magnesium in which from 0.1 to 8.0% by weight of the catalyst is in the form of one or more crystalline compounds of chromium and/or one or more crys... | 08/20/2009 |
| 20090182178 | Catalytic process for the preparation of fluorinated halocarbons A process is described for the preparation of 2-chloro-1,1,1-difluoroethane by the reaction of 1,2-dichloro-1,1-difluoroethane with hydrogen fluoride. in the presence of a fluorination catalyst. The process utilizes a rate enhancing reagent that is trichloroethylene, is... | 07/16/2009 |
| 20090062577 | Process for the manufacture of 1,1,1,3,3-pentafluoropropane A process for the manufacture of 1,1,1,3,3-pentafluoropropane, which comprises reacting 1,1,1,3,3,3-hexafluoropropane with a source of hydrogen.... | 03/05/2009 |
| 20090018377 | Catalytic process for the preparation of fluorinated halocarbons A process is described for the preparation of a reaction stream comprising 2-chloro-1,1,1-difluoroethane substantially free of oligomeric tars. The process proceeds in a first step by reacting trichloroethylene with hydrogen fluoride in the presence of a hydrofluorinati... | 01/15/2009 |
| 20090018376 | Catalytic process for the preparation of fluorinated halocarbons A process is described for the preparation of 2-chloro-1,1,1-difluoroethane by the reaction of 1,2-dichloro-1,1-difluoroethane with hydrogen fluoride. in the presence of a fluorination catalyst. The process utilizes a rate enhancing reagent that is trichloroethylene, is... | 01/15/2009 |
| 20080207964 | Compositions containing chromium, oxygen and gold, their preparation, and their use as catalysts and catalyst precursors A catalyst composition is disclosed that includes chromium, oxygen, and gold as essential constituent elements. The amount of gold in the composition is from about 0.05 atom % to about 10 atom % based on the total amount of chromium and gold. Also disclosed is a process... | 08/28/2008 |
| 20080091053 | PROCESS FOR THE MANUFACTURE OF 1,1,1,3,3-PENTACHLOROPROPANE A process for the manufacture of haloalkanes, or more particularly to a process for the manufacture of 1,1,1,3,3-pentachloropropane (HCC-240fa) and/or and/or 1,1,1,3-tetrachloropropane (HCC-250fb). The process includes (a) mixing a catalyst, co-catalyst and a haloalkane... | 04/17/2008 |
| 20080045758 | Halocarbon production processes, halocarbon separation processes, and halocarbon separation systems Halocarbon production processes are provided that can include reacting at least one C-2 halocarbon with at least one C-1 halocarbon in the presence of a phosphate to produce at least one C-3 chlorocarbon. The processes can include reacting ethylene with carbon tetrachlo... | 02/21/2008 |
| 20070299286 | High pressure catalyst activation method and catalyst produced thereby A process for the activation of a fluorination catalyst in which a catalyst precursor compound, supported or unsupported is first dried and thereafter activated by exposure to an activating agent at a pressure greater that about 100 psig and a temperature grater than ab... | 12/27/2007 |
| 20070191652 | Process for production of 1,1,1,2- tetrafluoroethane and/or pentafluorethane and applications of the same A process for producing high purity 1,1,1,2-tetrafluoroethane and/or pentafluoroethane by the step of purifying a crude product obtained by reacting trichloroethylene and/or tetrachloroethylene with hydrogen fluoride comprised of a main product including 1,1,1,2-tetrafl... | 08/16/2007 |
| 20070106099 | Production processes and systems Halocarbon production processes are described that can include providing a reactant mixture including a halogenating reagent and a halocarbon reactant. The processes can also include reacting the halogenating reagent and the halocarbon reactant to form a product mixture... | 05/10/2007 |
| 20060217578 | Process for the preparation of 1,1,1,3,3-pentafluoropropane and 1,1,1,2,3-pentafluoropropane A process is disclosed for the manufacture of CF3CH2CHF2 and CF3CHFCH2F. The process involves (a) reacting hydrogen fluoride, chlorine, and at least one halopropene of the formula CX3CCl═CClX (where eac... | 09/28/2006 |
| 20060004235 | Process for the preparation of 1,1,1,2,2-pentafluoroethane A process for the preparation of pentafluoroethane is disclosed which involves contacting a mixture comprising hydrogen fluoride and at least one one starting material selected from haloethanes of the formula CX3191CHX2 and haloethenes of the formu... | 01/05/2006 |
| 20050222471 | Processes for the preparation of 2-chloro-1,1,1,2,3,3,3-heptafluoropropane, hexafluoropropene and 1,1,1,2,3,3,3-heptafluoropropane A process for the preparation of 2-chloro-1,1,1,3,3,3-heptafluoropropane is disclosed which involves (a) contacting a mixture comprising hydrogen fluoride, chlorine, and at least one starting material selected from the group consisting of halopropenes of the formula CX<... | 10/06/2005 |
| 20050222472 | Method of making difluoromethane, 1,1,1-trifluoroethane and 1,1-difluoroethane A process for the production of difluoromethane (HFC-32), 1,1,1-trifluoroethane (HFC-143a) and 1,1-difluoroethane (HFC-152a). In the process the following steps are employed: (a) providing a reaction vessel, (b) providing in the reaction vessel activated carbon impregna... | 10/06/2005 |
| 20050027147 | Catalytic synthesis of halogenated compounds with catalyst regeneration with elemental halogen Catalysts such as antimony halides, which are useful in fluorination reactions involving hydrogen fluoride, may be reduced during the reaction and require regeneration. Regenerative oxidation is usually carried out by introducing elemental halogen, preferably fluorine o... | 02/03/2005 |
| 20050004409 | Process for the preparation of 1-chloro-1-fluoroethane and/or 1,1-difluoroethane The invention relates to a process for the preparation of 1-chloro-1-fluoroethane and 1,1-difluoroethane by reaction of vinyl chloride with hydrogen fluoride, in an organic solvent consisting of at least one saturated halogen-containing hydrocarbon. ... | 01/06/2005 |
| 20050004408 | Process for the production of difluoromethane The present invention provides a vapor phase process for the production of difluoromethane, HFC-32. The process of this invention provides for the preparation of BFC-32 by a process that exhibits both good product yield and selectivity. ... | 01/06/2005 |
