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Hydrogen Fluoride
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Azeotrope patents



      
           
This page is updated frequently with new Azeotrope-related patent applications. Subscribe to the Azeotrope RSS feed to automatically get the update: related Azeotrope RSS feeds. RSS updates for this page: Azeotrope RSS RSS


Date/App# patent app List of recent Azeotrope-related patents
11/13/14
20140336291
 Azeotrope-like compositions of tetrafluoropropene and alcohols patent thumbnailAzeotrope-like compositions of tetrafluoropropene and alcohols
A composition including an effective amount of trans-1,3,3,3-tetrafluoropropene component combined with an effective amount of an alcohol selected from the group of methanol, ethanol, propanol, isopropanol, tert-butanol, isobutanol, 2-ethyl hexanol and any combination thereof, where the composition has azeotropic properties.. .
10/16/14
20140305667
 Azeotrope-like compositions of e-1-chloro-2,3,3,3-tetrafluoropropene and uses thereof patent thumbnailAzeotrope-like compositions of e-1-chloro-2,3,3,3-tetrafluoropropene and uses thereof
Azeotrope-like compositions are disclosed. The azeotrope-like compositions are mixtures of e-1-chloro-2,3,3,3-tetrafluoropropene with e-1,1,1,4,4,4-hexafluoro-2-butene or e-1,1,1,4,4,5,5,5-octafluoro-2-pentene.
09/25/14
20140284517
 Azeotrope-like compositions of tetrafluoropropene and water patent thumbnailAzeotrope-like compositions of tetrafluoropropene and water
Provided are azeotropic and azeotrope-like compositions of trans-1,3,3,3-tetrafluoropropene (hfo-1234ze(e)) and water. Such azeotropic and azeotrope-like compositions are useful in isolating trans-1,3,3,3-tetrafluoropropene from impurities during production.
09/18/14
20140275652
 Integrated process to produce 2,3,3,3-tetrafluoropropene patent thumbnailIntegrated process to produce 2,3,3,3-tetrafluoropropene
The invention relates to a separation process whereby 2-chloro-3,3,3-trifluoropropene (1233xf) is separated from a mixture containing other fluorinated organics and high boiling materials such as dimers using azeotropes of hf formed by adding appropriate amounts to the mixture which facilitate separation by, e.g. Distillation..
09/18/14
20140264174
 Azeotropic compositions of 1,3,3,3-tetrachloroprop-1-ene and hydrogen fluoride patent thumbnailAzeotropic compositions of 1,3,3,3-tetrachloroprop-1-ene and hydrogen fluoride
Provided are azeotropic or azeotrope-like mixtures of 1,3,3,3-tetrachloroprop-1-ene (hco-1230zd) and hydrogen fluoride. Such compositions are useful as a feed stock in the production of hfc245fa and hcfo1233zd..
09/18/14
20140264173
 Azeotropic compositions of 1,1,3,3-tetrachloroprop-1-ene and hydrogen fluoride patent thumbnailAzeotropic compositions of 1,1,3,3-tetrachloroprop-1-ene and hydrogen fluoride
Provided are azeotropic or azeotrope-like mixtures of 1,1,3,3-tetrachloroprop-1-ene (hco-1230za) and hydrogen fluoride. Such compositions are useful as feed stock in the production of hfc-245fa and hcfo-1233zd..
09/18/14
20140264154
 Azeotropic compositions of 1,3,3-trichloro-1,1-difluoropropane and hydrogen fluoride patent thumbnailAzeotropic compositions of 1,3,3-trichloro-1,1-difluoropropane and hydrogen fluoride
Provided are azeotropic or azeotrope-like mixtures of 1,3,3-trichloro-1,1-difluoropropane (hcfo-242fa) and hydrogen fluoride. Such compositions are useful as a feed stock or intermediate in the production of hfc245fa and hcfo1233zd..
09/18/14
20140264148
 Azeotrope-like compositions comprising 1-chloro-3,3,3-trifluoropropene patent thumbnailAzeotrope-like compositions comprising 1-chloro-3,3,3-trifluoropropene
An azeotrope-like mixture consisting essentially of a binary azeotrope-like mixture consisting essentially of trans-1-chloro-3,3,3-trifluoropropene (trans-hfo-1233zd) and a second component selected from the group consisting of 2,3,3,3-tetrafluoropropene (hfo-1234yf) and trans-1,3,3,3-tetrafluoropropene (trans-hfo-1234ze), and combinations of these and various uses thereof.. .
08/21/14
20140231240
 Separation of r-1233 from hydrogen fluoride patent thumbnailSeparation of r-1233 from hydrogen fluoride
The invention relates to a process for separating monochloro-trifluoropropenes such as hcfc-1233 from azeotrope or azeotrope like combinations with hf. The process employs a cold, liquid phase separations and multiple azeotropic distillation trains..
07/24/14
20140206589
 Azeotrope-like compositions comprising 1-chloro-3,3,3-trifluoropropene patent thumbnailAzeotrope-like compositions comprising 1-chloro-3,3,3-trifluoropropene
The present invention relates, in part, to binary azeotropic compositions and mixtures including chlorotrifluoropropene and petroleum ether and to ternary azeotropic compositions and mixtures including chlorotrifluoropropene, methanol, and a third component selected from isohexane, trans-1,2-dichloroethylene, and petroleum ether. The present invention further relates to ternary azeotropic compositions and mixtures including chlorotrifluoropropene, cyclopentane, and a alcohol selected from methanol, ethanol, and isopropanol..
07/03/14
20140187777
Materials and methods for the base-assisted synthesis of substituted heteroaromatic compounds
Disclosed herein are some methods for synthesizing the base-assisted coupling of aromatic alcohols with substituted aromatic compounds including some substituted heteroaromatic compounds such as pyrimidines or pyridines to form esters. The reactions may include inexpensive bases such as potassium hydroxide and take place in a solvent mixture comprised primarily of hindered tertiary alcohols that are at least partially immiscible with water.
06/26/14
20140178312
Azeotrope-like compositions comprising 1-chloro-3,3,3-trifluoropropene
An azeotrope-like mixture consisting essentially of chlorotrifluoropropene and at least one component selected from the group consisting of a c1-c3 alcohol, a c5-c6 hydrocarbon, a halogenated hydrocarbon, methylal, methyl acetone, water, nitromethane, and combinations thereof.. .
06/05/14
20140155617
Method for preparing 3-trifluoromethyl chalcones
Disclosed is a method for preparing a compound of formula 1 wherein q and z are as defined in the disclosure comprising distilling water from a mixture comprising a compound of formula 2, a compound of formula 3, a base comprising at least one compound selected from the group consisting of alkaline earth metal hydroxides of formula 4 wherein m is ca, sr or ba, alkali metal carbonates of formula 4a wherein m1 is li, na or k, 1,5-diazabicyclo[4.3.0]non-5-ene and 1,8-diazabicyclo[5.4.0]undec-7-ene, and an aprotic solvent capable of forming a low-boiling azeotrope with water. Also disclosed is a method for preparing a compound of formula 2 comprising (1) forming a reaction mixture comprising a grignard reagent derived from contacting a compound of formula 5 wherein x is cl, br or i with magnesium metal or an alkylmagnesium halide in the presence of an ethereal solvent, and then (2) contacting the reaction mixture with a compound of formula 6 wherein y is or11 or nr12 r13, and r11, r12 and r13 are as defined in the disclosure.
05/15/14
20140131613
Refrigerants
Refrigerants for use in a thermodynamic cycle taking place in a system producing either hot or cold are disclosed. The refrigerants comprise binary azeotrope mixture of saturated hydrocarbon with either methanol or ethanol.
05/08/14
20140128559
Azeotropes of isobutylene with fluoro-olefins
Azeotropic or azeotrope-like compositions of the present invention include trans-1,3,3,3-tetrafluoroprop-1-ene and isobutylene. The azeotropic or azeotrope-like compositions can be used in polymerization processes, including slurry polymerization processes..
04/24/14
20140114093
System and method for continuously producing polyoxymethylene dialkyl ethers
A reaction system and method for producing polyoxymethylene dialkyl ethers (ro(ch2o)nr, n=1-8) by continuous acetalation of formaldehyde and aliphatic alcohol in the presence of an acid ionic liquid catalyst. The reaction system includes an acetalation reaction unit, a product separation unit, and a catalyst regeneration unit.
03/20/14
20140077124
Azeotrope-like compositions of tetrafluoropropene and hydrofluorocarbons
Provided are azeotrope-like compositions comprising tetrafluoropropene and hydrofluorocarbons and uses thereof, including use in refrigerant compositions, refrigeration systems, blowing agent compositions, and aerosol propellants.. .
02/20/14
20140048739
Compositions of chloro-trifluoropropene and hexafluorobutene
Provided are compositions, preferably azeotrope or azeotrope-like compositions comprised of 1,1,1,4,4,4-hexafluoro-2-butene and chlorotrifluoropropene, particularly 1-chloro-3,3,3-trifluoropropene (hcfo-1233zd), and uses thereof.. .
02/20/14
20140048737
Azeotrope-like compositions of pentafluoroethane and trifluoroiodomethane
Provided are azeotrope-like compositions comprising heptafluoropropane and trifluoroiodomethane and uses thereof, including use in refrigerant compositions, refrigeration systems, blowing agents, fire suppressant compositions, and aerosol propellants.. .
01/09/14
20140012052
Azeotrope-like composition of 2-chloro-3,3,3-trifluoropropene (hcfc-1233xf) and hydrogen fluoride (hf)
Provided are azeotropic and azeotrope-like compositions of 2-chloro-3,3,3-trifluoropropene (hcfo-1233xf) and hydrogen fluoride (hf). Such azeotropic and azeotrope-like compositions are useful as intermediates in the production of 2,3,3,3-tetrafluoropropene (hfo-1234yf)..
12/19/13
20130338408
Process for separating hydrogen fluoride from organic feedstocks
Provided is a process for purifying an organic feedstock comprising (a) distilling a raw organic feedstock comprising hydrogen fluoride, 2-chloro-1,1,1,2-tetrafluoropropane, and 2-chloro-3,3,3-trifluoropropene to produce a first distillate stream comprising an azeotrope-like composition of 2-chloro-1,1,1,2-tetrafluoropropane, 2-chloro-3,3,3-trifluoropropene, and hydrogen fluoride, and a first bottoms stream rich in hydrogen fluoride; (b) cooling said first distillate stream to produce an intermediate composition comprising an organic layer rich in 2-chloro-1,1,1,2-tetrafluoropropane and 2-chloro-3,3,3-trifluoropropene, and an acid layer rich in hydrogen fluoride; and, optionally but preferably, (c) distilling said organic layer to produce a second distillate stream comprising an azeotrope-like composition of 2-chloro-1,1,1,2-tetrafluoropropane, 2-chloro-3,3,3-trifluoropropene, and hydrogen fluoride, and a second bottoms stream comprising a purified organic feedstock substantially free of hydrogen fluoride.. .
11/14/13
20130298581
Producing heating using working fluids comprising z-1,1,1,4,4,4-hexafluoro-2-butene
Disclosed herein is a method for producing heating in a high temperature heat pump comprising condensing a vapor working fluid comprising z-1,1,1,4,4,4-hexafluoro-2-butene, in a condenser, thereby producing a liquid working fluid. Also disclosed herein is a method of raising the maximum feasible condenser operating temperature in a high temperature heat pump apparatus comprising charging the high temperature heat pump with a working fluid comprising z-1,1,1,4,4,4-hexafluoro-2-butene.
11/07/13
20130292599
Azeotropic and azeotrope-like compositions involving certain haloolefins and uses thereof
Azeotropic or azeotrope-like compositions are disclosed. The azeotropic or azeotrope-like compositions are mixtures of (a) a compound of the formula cf3cx═chra where x is h or f and ra is cf3cf2, cf3 or cl, provided that (i) when x is f, ra is cl, (ii) when ra is cf3cf2 or cl, the compound of formula cf3cx═chra is the e configurational isomer, and (iii) when ra is cf3, the compound of formula cf3cx═chra is the z configurational isomer; and (b) a compound of the formula cf3rb where rb is chfch2f or ch═chcf3, provided that when rb is ch═chcf3, x is f and the compound of formula cf3rb is the z configurational isomer.
10/31/13
20130284584
Process for separating ethylene glycol and 1, 2-butanediol
The present invention relates to a process for separating ethylene glycol and 1,2-butanediol. A material flow containing ethylene glycol and 1,2-butanediol gets into the lower-middle part of the azeotropic rectification column c3 after the light components are removed by the separating columns c1 and c2, wherein the ethylene glycol and the azeotropic agent added from the top of the column form azeotrope which is distilled out from the top of the column and gets into the phase separator d1 after being condensed, the upper phase enriched with azeotropic agent after the phase was separated returns to the top of the column to continue to participate in azeotropy, and the lower phase enriched with ethylene glycol gets into the fourth separating column c4 to be refined to obtain the ethylene glycol product..
09/19/13
20130244922
Azeotropic compositions comprising methyl perfluoropentene ethers for cleaning applications
The present disclosure provides azeotropic and azeotrope-like compositions comprised of methylperfluoropentene ethers and at least one of methanol, ethanol, 2-propanol, hexane, heptane, trans-1,2-dichloroethylene, ethyl formate, methyl formate, hfe-7100, hfe-7200 and 1-bromopropane or combinations thereof. The present disclosure also provides for methods of use for the azeotropic and azeotrope-like compositions..
08/29/13
20130221273
Azeotropic compositions of 1,1,3,3-tetrachloro-1-fluoropropane and hydrogen fluoride
Provided are azeotropic or azeotrope-like mixtures of 1,1,3,3-tetrachloro-1-fluoropropane (hcfc-241fa) and hydrogen fluoride. Such compositions are useful as an intermediate in the production of hfc-245fa and hcfo-1233zd..
08/29/13
20130221272
Azeotropic compositions of 1,1,1,3,3-pentachloropropane and hydrogen fluoride
Provided are azeotropic or azeotrope-like mixtures of 1,1,1,3,3-pentachloro-propane (240fa) and hydrogen fluoride. Such compositions are useful as an intermediate in the production of hfc-245fa and hcfo-1233zd..
08/22/13
20130217929
Azeotrope-like composition of hexafluoropropane, hexafluoropropene and hydrogen fluoride
The present invention relates to an azeotropic or azeotrope-like mixture consisting essentially of 1,1,1,2,3,3-hexafluoropropane, hexafluoropropene and hydrogen fluoride.. .
08/22/13
20130217800
Hydrophobic self-etch dental adhesive compositions
A hydrophobic self-etch dental adhesive composition including a hydrophobic, surfactant-type acidic monomer. The composition may further include hydrophilic and hydrophobic monomers, preferably in a ratio of less than 1:1, and may include a solvent that is an azeotrope..
07/04/13
20130167568
Apparatus and method for measuring concentration of liquid-state refrigerant of nonazeotrope refrigerant mixture, and absorption type, 1-stage compressing-absorbing type and 2-stage compressing-absorbing type heat pump including the apparatus
An apparatus and method for measuring concentration of a liquid-state refrigerant of a nonazeotrope refrigerant mixture. A container is disposed in such a way that a liquid-state refrigerant mixture of the nonazeotrope refrigerant mixture in a saturated state is temporarily stored with set quality.
06/20/13
20130158218
Azeotropes of methyl chloride with fluorocarbons
Azeotropic or azeotrope-like compositions of the present technology include methyl chloride and at least one hydrofluorocarbon or hydrofluoro-olefin. In some examples, the at least one hydrofluorocarbon or hydrofluoro-olefin can be selected from the group consisting of 1,1,1,2-tetrafluoroethane and 1,3,3,3-tetrafluoropropene.
06/20/13
20130153817
Compositions and use of vinylidene fluoride and blends thereof
The present technology relates to compositional blends that can be used as refrigerants, and more specifically to blends of vinylidene fluoride and at least one other component for use in very low temperature applications. In at least some examples, the second component can be selected from the group consisting of carbon dioxide and pentafluoroethane.
06/13/13
20130149422
Animal feed processing agents, animal feeds and methods of processing animal feed
Animal feed processing agents containing an azeotrope comprising water, an alcohol, and sodium stabilized by surrounding organized water. Methods of processing animal feed utilizing steam flaking in the presence of added agent comprising an alcohol, and sodium stabilized by surrounding organized water.
06/06/13
20130144080
Process for obtaining a dialkyl carbonate and an alkylene glycol
(b) separating the stream (5) comprising dialkyl carbonate and alkylene glycol as a heteroazeotrope into a first crude product stream (27) comprising essentially di-alkyl carbonate and a second crude product stream (29) comprising essentially alkylene glycol in an apparatus for phase separation (25).. .
05/23/13
20130131404
Azeotrope-like compositions of (z)-1-chloro-3,3,3-trifluoropropene and hydrogen fluoride
Disclosed are azeotropic and azeotrope-like mixtures of (z)-1-chloro-3,3,3-trifluoropropene (1233zd(z)) and hydrogen fluoride. Such compositions are useful as an intermediate in the production of 1233zd(z).
05/23/13
20130131392
Methods for producing ethyl tert-butyl ether
Embodiments of methods for producing ethyl tert-butyl ether (etbe) are provided herein. A method for producing etbe comprises the steps of contacting a c4 olefin-rich stream that contains isobutene with a first catalyst in the presence of ethanol at etherification conditions effective to form a reaction effluent comprising etbe and residual ethanol.
05/16/13
20130119292
Azeotropic and azeotrope-like compositions of z-1,1,1,4,4,4-hexafluoro-2-butene, trans-1,2-dichloroethylene, and 1,1,1,3,3-pentafluorobutane
Azeotropic or azeotrope-like compositions are disclosed. The azeotropic or azeotrope-like compositions are mixtures of z-1,1,1,4,4,4-hexafluoro-2-butene, trans-1,2-dichloroethylene and 1,1,1,3,3-pentafluorobutane.
05/16/13
20130118892
Isolation of acrylic acid by means of a distillation column having a side offtake
The present process separates acrylic acid from a composition containing acrylic acid and at least one accompanying product. The process first involves contacting the composition with an aqueous liquid stream to give a liquid solution of acrylic acid, accompanying product, and water.
05/02/13
20130109771
Azeotrope-like compositions including cis-1-chloro-3,3,3-trifluoropropene
The present invention relates, in part, to azeotrope and azeotrope-like mixtures consisting essentially of consisting essentially of cis-1-chloro-3,3,3-trifluoropropene and a second component selected from the group water, hexane, hfc-365mfc, and perfluoro(2-methyl-3-pentanone).. .
04/11/13
20130090501
Process for producing ethanol using a crude vinyl acetate feed
Converting a crude vinyl acetate feed to ethanol by hydrogenating the acetic acid and ethyl acetate in the crude vinyl acetate feed. The crude vinyl acetate feed may comprise acetic acid and/or ethyl acetate, as well as vinyl acetate and minor amounts of vinyl propionate.
03/28/13
20130079492
Process for preparing eddn and edmn
A process for preparing eddn and/or edmn by conversion of fa, hcn and eda, the reaction being effected in the presence of water, and, after the conversion, water being depleted from the reaction mixture in a distillation column, which comprises performing the distillation in the presence of an organic solvent which has a boiling point between water and eddn and/or edmn at the distillation pressure existing in the column or which forms a low-boiling azeotrope with water.. .
03/28/13
20130075063
Azeotrope-like compositions of cis-1,3,3,3-tetrafluoropropene and 1,1,1,3,3-pentafluoropropane
The present invention provides azeotrope-like compositions of cis-1,3,3,3-tetrafluoroprone (hfo-1234ze (z)) with 1,1,1,3,3-pentafluoropropane (hfc-245fa) and uses thereof, including use in refrigerant compositions, refrigeration systems, blowing agent compositions, and aerosol propellants.. .
03/07/13
20130060002
Process for working up reaction outputs from the hydrogenation of eddn or edmn
A process is disclosed for separating the output from the reaction of eddn or edmn with hydrogen in the presence of thf, a catalyst, teta or deta, water, and optionally organic compounds having higher and lower boiling points than teta or deta. Hydrogen is removed, and the output is supplied to a distillation column dk1 in which an azeotrope, optionally comprising organic compounds with a boiling point lower than teta or deta, is removed from the top.
01/03/13
20130004435
Azeotrope-like compositions comprising 1-chloro-3,3,3-trifluoropropene
The present invention relates, in part, to ternary azeotropic compositions and mixtures including chlorotrifluoropropene, methanol, and a third component selected from isohexane, trans-1,2-dichloroethylene, and petroleum ether. The present invention further relates to ternary azeotropic compositions and mixtures including chlorotrifluoropropene, cyclopentane, and a alcohol selected from methanol, ethanol, and isopropanol..


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Azeotrope topics: Hydrogen Fluoride, Refrigerant, Carbon Dioxide, Ethylene Glycol, Surfactant, Dental Adhesive, Tetrafluoro, Hydrofluorocarbon, Polymerization Process, Alkylene Glycol, Acetic Acid

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