Patent application number | Description | Published |
20080220488 | Process for making isooctenes from dry 1-butanol - The present invention relates to a process for making isooctenes using dry 1-butanol derived from fermentation broth. The isooctenes so produced are useful for the production of fuel additives. | 09-11-2008 |
20080234523 | Process for making isooctenes from aqueous 2-butanol - The present invention relates to a catalytic process for making isooctenes using a reactant comprising 2-butanol and water. The isooctenes so produced are useful for the production of fuel additives. | 09-25-2008 |
20080293978 | PROCESS FOR THE SEPARATION OF FLUOROCARBONS USING IONIC LIQUIDS - This invention relates to a process for separating 1,1,2,2-tetrafluoroethane or 1,1,1,2-tetrafluoroethane from a mixture comprising both 1,1,1,2-tetrafluoroethane and 1,1,2,2-tetrafluoroethane wherein at least one ionic liquid is used to enhance the efficiency of the separation. | 11-27-2008 |
20090005618 | Azeotrope Compositions of Octafluorocyclobutane and Uses Thereof - The present disclosure related to azeotrope and near-azeotrope compositions comprising PFC-C318 and HFC-236cb. The present disclosure further relates to processes for removing PFC-C318 from HFC-236cb. And the present disclosure further relates to azeotrope and near azeotrope compositions comprising hydrogen fluoride and PFC-C318. | 01-01-2009 |
20090023959 | Process for making dibutyl ethers from dry 1-butanol - The present invention relates to a process for making dibutyl ethers using dry 1-butanol derived from fermentation broth. The dibutyl ethers so produced are useful in transportation fuels. | 01-22-2009 |
20090030239 | Process for making butenes from aqueous isobutanol - The present invention relates to a catalytic process for making butenes using a reactant comprising isobutanol and water. The butenes so produced may be converted to isoalkanes, alkyl-substituted aromatics, isooctanes, isooctanols, and octyl ethers, which are useful in transportation fuels. | 01-29-2009 |
20090036716 | Process for making dibutyl ethers from aqueous 1-butanol - The present invention relates to a catalytic process for making dibutyl ethers using a reactant comprising 1-butanol and water. The dibutyl ethers so produced are useful in transportation fuels. | 02-05-2009 |
20090099401 | Process for making isooctenes from aqueous isobutanol - The present invention relates to a catalytic process for making isooctenes using a reactant comprising isobutanol and water. The isooctenes so produced are useful for the production of fuel additives. | 04-16-2009 |
20090278075 | COMPOSITIONS COMPRISING 1,1,1,2,3-PENTAFLUOROPROPANE OR 2,3,3,3- TETRAFLUOROPROPENE - Disclosed are compositions comprising HFC-245eb and at least one additional compound selected from the group consisting of HFO-1234ze, HFC-245fa, HFC-236cb, HFC-236ea, HFC-236fa, HFC-227ea, HFC-227ca, HFO-1225yc, HFO-1225zc, HFO-1225ye, methane, ethane, propane, HFC-23, HFC-143a, HFC-134, HFC-134a, FC-1216, HFO-1234yf, HFC-254eb, HFO-1243zf, and HFC-254fb. Compositions comprising HFC-245eb are useful in processes to make HFO-1234yf. Also disclosed are compositions comprising HFO-1 234yf and at least one additional compound selected from the group consisting of HFO-1234ze, HFC-254eb, HFC-254fb, HFO-1243zf, HFCHFC-245eb, HFC-245fa, HFC-245cb, HFC-236cb, HFC-236ea, HFC-236fa, HFC-227ea, HFC-227ca, HFO-1225yc, HFO-1225zc, HFO-1225ye, methane, ethane, propane, HFC-23, HFC-134, HFC-134a, HFO-1132a and FC-1216. Compositions comprising HFO-1234yf are useful as heat transfer compositions for use in refrigeration, air-conditioning and heat pump systems. | 11-12-2009 |
20100187464 | AZEOTROPE COMPOSITIONS COMPRISING 1,1,1,2,3-PENTAFLUOROPROPENE AND HYDROGEN FLUORIDE AND USES THEREOF - Disclosed herein are azeotrope and near-azeotrope compositions comprising E-1,1,1,2,3-pentafluoropropene (E-HFC-1225ye) and hydrogen fluoride. The azeotrope and near-azeotrope compositions are useful in processes to produce and in processes to purify E-HFC-1225ye and/or Z-1,1,1,2,3-pentafluoropropene (Z-HFC-1225ye). Also disclosed are processes for the extractive distillation to separate E-HFC-1225ye from Z-HFC-1225ye. | 07-29-2010 |
20100308259 | PROCESS FOR SEPARATING A FLUOROOLEFIN FROM HF BY LIQUID-LIQUID EXTRACTION - Disclosed is a process for separating fluoroolefin from a composition comprising HF and fluoroolefin, said process comprising extracting said composition with an extractant. Also disclosed is a composition comprising HF, at least one fluoroolefin, and at least one extractant. | 12-09-2010 |
20110101264 | HYDROGEN FLUORIDE-HFC-254EB AZEOTROPE AND ITS USES - Described is a process for separating 1,1,1,2-tetrafluoropropane and hydrogen fluoride from a mixture comprising 1,1,1,2-tetrafluoropropane, 1,1,1,2,3-pentafluoropropane and hydrogen fluoride comprising: subjecting said 1,1,1,2-tetrafluoropropane, 1,1,1,2,3-pentafluoropropane and hydrogen fluoride mixture to a distillation step, forming a column distillate composition comprising an azeotropic or near-azeotropic composition of said 1,1,1,2-tetrafluoropropane and hydrogen fluoride, and a bottoms composition of 1,1,1,2,3-pentafluoropropane. The column distillate may optionally be made essentially free of 1,1,1,2,3-pentafluoropropane and the column bottoms composition may optionally be made essentially free of HF. Also described is a process for separating 1,1,1,2-tetrafluoropropane and hydrogen fluoride from a mixture of 1,1,1,2-tetrafluoropropane and hydrogen fluoride. Also described are azeotropic and azeotrope-like compositions comprising 1,1,1,2-tetrafluoropropane and hydrogen fluoride. | 05-05-2011 |
20110144395 | PROCESS TO REMOVE HF FROM 1,1,1,2,2,3,4,5,5,5-DECAFLUOROPENTANE - Disclosed is process for the recovery of HFC-43-10mee from a mixture comprising hydrogen fluoride and HFC-43-10mee, comprising feeding the composition comprising hydrogen fluoride and HFC-43-10mee to a distillation column, subjecting said mixture to a distillation step from which is formed a column distillate composition comprising an azeotrope or azeotrope-like composition of hydrogen fluoride and HFC-43-10mee, and a column-bottoms composition comprising HFC-43-10mee, condensing said column distillate composition to form two liquid phases, being i) an HFC-43-10mee-rich phase and ii) an HF-rich phase; and separating said two liquid phases. | 06-16-2011 |
20110237847 | PROCESS FOR THE MANUFACTURE FLUOROCARBONS - Halocarbons of the structure CF | 09-29-2011 |
20110257444 | AZEOTROPE COMPOSITIONS COMPRISING 1,1,1,2,3-PENTAFLUOROPROPENE AND HYDROGEN FLUORIDE AND USES THEREOF - Disclosed herein are azeotrope and near-azeotrope compositions comprising E-1,1,1,2,3-pentafluoropropene (E-HFC-1225ye) and hydrogen fluoride. The azeotrope and near-azeotrope compositions are useful in processes to produce and in processes to purify E-HFC-1225ye and/or Z-1,1,1,2,3-pentafluoropropene (Z-HFC-1225ye). Also disclosed are processes for the extractive distillation to separate E-HFC-1225ye from Z-HFC-1225ye. | 10-20-2011 |
20120024319 | AZEOTROPIC AND AZEOTROPE-LIKE COMPOSITIONS OF METHYL PERFLUOROHEPTENE ETHERS AND METHANOL AND USES THEREOF - The present disclosure provides azeotropic and azeotrope-like compositions comprised of methylperfluoroheptene ethers and methanol. The present disclosure also provides for methods of use for the azeotropic and azeotrope-like compositions. | 02-02-2012 |
20120028864 | AZEOTROPIC AND AZEOTROPE-LIKE COMPOSITIONS OF METHYL PERFLUOROHEPTENE ETHERS AND ISO-PROPANOL AND USES THEREOF - The present disclosure provides azeotropic and azeotrope-like compositions comprised of methylperfluoroheptene ethers and 2-propanol. The present disclosure also provides for methods of use for the azeotropic and azeotrope-like compositions. | 02-02-2012 |
20120157362 | AZEOTROPIC AND AZEOTROPE-LIKE COMPOSITIONS OF METHYL PERFLUOROHEPTENE ETHERS AND HEPTANE AND USES THEREOF - The present disclosure provides azeotropic and azeotrope-like compositions comprised of methylperfluoroheptene ethers and heptane. The present disclosure also provides for methods of use for the azeotropic and azeotrope-like compositions. | 06-21-2012 |
20120157363 | AZEOTROPIC AND AZEOTROPE-LIKE COMPOSITIONS OF METHYL PERFLUOROHEPTENE ETHERS AND ETHANOL AND USES THEREOF - The present disclosure provides azeotropic and azeotrope-like compositions comprised of methylperfluoroheptene ethers and ethanol. The present disclosure also provides for methods of use for the azeotropic and azeotrope-like compositions. | 06-21-2012 |
20120165578 | COMPOSITIONS COMPRISING 1,1,1,2,3-PENTAFLUOROPROPANE OR 2,3,3,3- TETRAFLUOROPROPENE - Disclosed are compositions comprising HFC-245 | 06-28-2012 |
20120165579 | PROCESS FOR THE SEPARATION OF FLUOROCARBONS USING IONIC LIQUIDS - This invention relates to a process for separating 1,1,2,2-tetrafluoroethane or 1,1,1,2-tetrafluoroethane from a mixture comprising both 1,1,1,2-tetrafluoroethane and 1,1,2,2-tetrafluoroethane wherein at least one ionic liquid is used to enhance the efficiency of the separation. | 06-28-2012 |
20120227764 | AZEOTROPIC AND AZEOTROPE-LIKE COMPOSITIONS OF METHYL PERFLUOROHEPTENE ETHERS AND TRANS-1,2-DICHLOROETHYLENE AND USES THEREOF - The present disclosure provides azeotropic and azeotrope-like compositions comprised of methylperfluoroheptene ethers and trans-1,2-dichloroethylene. The present disclosure also provides for methods of use for the azeotropic and azeotrope-like compositions. | 09-13-2012 |
20120261252 | PROCESSES FOR SEPARATION OF 2,3,3,3-TETRAFLUOROPROPENE FROM HYDROGEN FLUORIDE BY AZEOTROPIC DISTILLATION - Disclosed herein are processes for separation of 2,3,3,3-tetrafluoropropene and hydrogen fluoride using azeotropic distillation. Additionally, disclosed are processes for separating mixtures of 2,3,3,3-tetrafluoropropene, hydrogen fluoride and 1,1,1,2,3-pentafluoropropane (HFC-245eb) and/or 1,1,1,2,2-pentafluoropropane (HFC-245cb) by azeotropic distillation. | 10-18-2012 |
20120305382 | PROCESSES FOR SEPARATION OF FLUOROOLEFINS FROM HYDROGEN FLUORIDE BY AZEOTROPIC DISTILLATION - The present disclosure relates to a process for separating a fluoroolefin from a mixture comprising hydrogen fluoride and fluoroolefin, comprising azeotropic distillation both with and without an entrainer. In particular are disclosed processes for separating any of HFC-1225ye, HFC-1234ze, HFC-1234yf or HFC-1243zf from HF. | 12-06-2012 |
20120323054 | PURIFICATION OF CIS-1,1,1,4,4,4-HEXAFLUORO-2-BUTENE VIA EXTRACTIVE DISTILLATION - A process for separating cis-1,1,1,4,4,4-hexafluoro-2-butene from a first mixture comprising cis-1,1,1,4,4,4-hexafluoro-2-butene and at least one chlorofluoroolefin is disclosed. The process involves the steps of contacting said first mixture with at least one extractive agent, to form a second mixture, distilling said second mixture; and recovering cis-1,1,1,4,4,4-hexafluoro-2-butene substantially free of chlorofluoroolefin. | 12-20-2012 |
20130068989 | COMPOSITIONS COMPRISING 1,1,1,2,3-PENTAFLUOROPROPANE OR 2,3,3,3-TETRAFLUOROPROPENE - Disclosed are compositions comprising HFC-245eb and at least one additional compound selected from the group consisting of HFO-1234ze, HFC-245fa, HFC-236cb, HFC-236ea, HFC-236fa, HFC-227ea, HFC-227ca, HFO-1225yc, HFO-1225zc, HFO-1225ye, methane, ethane, propane, HFC-23, HFC-143a, HFC-134, HFC-134a, FC-1216, HFO-1234yf, HFC-254eb, HFO-1243zf, and HFC-254fb. Compositions comprising HFC-245eb are useful in processes to make HFO-1234yf. Also disclosed are compositions comprising HFO-1234yf and at least one additional compound selected from the group consisting of HFO-1234ze, HFC-254eb, HFC-254fb, HFO-1243zf, HFCHFC-245eb, HFC-245fa, HFC-245cb, HFC-236cb, HFC-236ea, HFC-236fa, HFC-227ea, HFC-227ca, HFO-1225yc, HFO-1225zc, HFO-1225ye, methane, ethane, propane, HFC-23, HFC-134, HFC-134a, HFO-1132a and FC-1216. Compositions comprising HFO-1234yf are useful as heat transfer compositions for use in refrigeration, air-conditioning and heat pump systems. | 03-21-2013 |