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Azeotrope

Azeotrope-related patent applications - as published by the U.S. Patent and Trademark Office (USPTO).


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Histological specimen treatment
June 08, 2017 - N°20170160173

A single dissolving compound forms plural azeotropes, which can be azeotropically vaporized off at various stages of the treatment process, thus maintaining predictable concentrations of the chemicals present. The treatment process can be performed in the absence of formalin or related compounds which can interfere with the preservation of genetic material. A process for preserving a specimen includes using a ...
Histological specimen treatment
June 08, 2017 - N°20170160172

A single dissolving compound forms plural azeotropes, which can be azeotropically vaporized off at various stages of the treatment process, thus maintaining predictable concentrations of the chemicals present. The treatment process can be performed in the absence of formalin or related compounds which can interfere with the preservation of genetic material. A process for preserving a specimen includes using a ...
Compositions of chloro-trifluoropropene and hexafluorobutene
May 25, 2017 - N°20170145275

Provided are compositions, preferably azeotrope or azeotrope-like compositions including 1,1,1,4,4,4-hexafluoro-2-butene and chlorotrifluoropropene, particularly 1-chloro-3,3,3-trifluoropropene (hcfo-1233zd), and uses thereof of the compositions. The composition may be a heat transfer composition. The composition may be a blowing agent composition. The composition may be a solvent composition. The composition may be a sprayable composition.
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Azeotropic and azeotrope-like compositions of e-1,1,1,4,4,4-hexafluoro-2-butene and ethylene oxide and uses thereof
The Chemours Company Fc, Llc
March 16, 2017 - N°20170072080

Azeotropic or azeotrope-like compositions are disclosed. The azeotropic or azeotrope-like compositions are mixtures of e-1,1,1,4,4,4-hexafluoro-2-butene and ethylene oxide. Also disclosed are double azeotropic compositions of e-1,1,1,4,4,4-hexafluoro-2-butene and ethylene oxide. Also disclosed is a process of preparing a thermoplastic or thermoset foam by using such azeotropic or azeotrope-like compositions as blowing agents. Also disclosed is a process ...
Azeotrope-like compositions of cis-1,1,1,4,4,4-hexafluoro-2-butene
The Chemours Company Fc, Llc
March 09, 2017 - N°20170066953

And another material selected from the group consisting of water, fluoroketones, alcohols, hydrochlorofluoroolefins, and combinations of two or more thereof. These compositions may be used in a wide variety of applications such as, blowing agents, refrigerants, heating agents, power cycle agents, cleaning agents, aerosol propellants, sterilization agents, lubricants, flavor and fragrance extractants, flammability reducing agents, and flame suppression agents.
Azeotrope-like compositions of 1,1,1,2-tetrafluoropropene and 1,1,1,2-tetrafluoroethane
Honeywell International Inc.
March 09, 2017 - N°20170065953

Provided are azeotrope-like compositions consisting essentially of 1,1,1,2-tetrafluoropropene and 1,1,1,2-tetrafluoroethane and uses thereof, including use in refrigerant compositions, refrigeration systems, blowing agent compositions, and aerosol propellants.
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Flash spinning process
E I Du Pont De Nemours And Company
December 15, 2016 - N°20160362816

A process for the preparation of plexifilamentary film-fibril strands of polymer. The process includes the steps of generating a spin fluid containing (a) 5 to 30 wt. % containing one or more polymer types, (b) a primary spin agent selected from the group consisting of dichloromethane, cis-1,2-dichloroethylene and trans-1,2-dichloroethylene, and (c) a co-spin agent comprising 1h,6h-perfluorohexane or 1h-perfluorohexane or 1h-perfluoroheptane. ...
Histological specimen treatment
E I Du Pont De Nemours And Company
November 10, 2016 - N°20160327457

A single dissolving compound forms plural azeotropes, which can be azeotropically vaporized off at various stages of the treatment process, thus maintaining predictable concentrations of the chemicals present. The treatment process can be performed in the absence of formalin or related compounds which can interfere with the preservation of genetic material. A process for preserving a specimen includes using a ...
Refrigerant compositions
E I Du Pont De Nemours And Company
October 27, 2016 - N°20160312095

Refrigerant compositions are described. In particular, refrigerant compositions are described that include a two component blend, where one of the components is a refrigerant blend that, when first combined, is considered an azeotropic blend, azeotrope, near azeotropic, or the like. This component is one component of the two components of the resulting refrigerant composition, which is combined with a second ...
Method for preparing 3-trifluoromethyl chalcones
E.i. Du Pont De Nemours And Company
October 20, 2016 - N°20160304474

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 ...
Compositions comprising tetrafluoropropene and tetrafluoroethane; their use in power cycles; and power cycle apparatus
The Chemours Company Fc, Llc
October 06, 2016 - N°20160290175

A method for converting heat from a heat source to mechanical energy is provided. The method comprises heating a working fluid e-1,3,3,3-tetrafluoropropene and at least one compound selected from 1,1,1,2-tetrafluoroethane and 1,1,2,2-tetrafluoroethane using heat supplied from the heat source; and expanding the heated working fluid to lower the pressure of the working fluid and generate mechanical energy as the ...
Apparatuses and methods for energy efficient separations including refining of fuel products
Government Of The United States As Represented By The Secretary Of The Air Force
September 29, 2016 - N°20160281007

In various aspects, methods and apparatuses for liquid-liquid extraction are provided. In certain aspects, an emulsion can be formed by combining a feed stream, an extractant, and a surfactant. The feed stream comprises a plurality of distinct components including a first component to be removed therefrom. The feed stream may be selected from a group consisting of: a hydrocarbon feed ...
Solvent decontamination system and method
Innocorps Research Corporation
September 01, 2016 - N°20160251235

A system and method for decontaminating a fluid like a non-azeotrope solvent such as water, wherein a transport gas is maintained at a temperature between the freezing point and boiling point at atmospheric pressure of the solvent and continuously circulated between an evaporation chamber and a condensation chamber, a contaminated solvent is introduced into the transport gas in the evaporation ...
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Azeotrope-like compositions of hfo-e-1,3,4,4,4-pentafluoro-3-trifluoromethyl-1-butene and e-1-chloro-3,3,3-trifluoropropene and uses thereof
The Chemours Company Fc, Llc
August 25, 2016 - N°20160243389

Azeotrope-like compositions are disclosed. The azeotrope-like compositions are mixtures of hfo-e-1,3,4,4,4-pentafluoro-3-trifluoromethyl-1-butene and e-1-chloro-3,3,3-trifluoropropene. Also disclosed is a process of preparing a thermoplastic or thermoset foam by using such azeotrope-like compositions as blowing agents. Also disclosed is a process of producing refrigeration by using such azeotrope-like compositions. Also disclosed is a process of using such azeotrope-like ...
Purification of an acetyl stream
Eastman Chemical Company
August 11, 2016 - N°20160229777

A process for purifying an acetyl stream containing an impurity that forms an azeotrope with the acetyl moiety includes the steps of a) contacting an acetyl feed stream comprising: i) acetic acid; and ii) an acetic acid azeotrope-forming compound, with a metal oxide catalyst in a ketonization reactor to produce a crude product mixture from a ketonization reaction comprising acetone, ...
Method and apparatus for extracting plant oils using ethanol water
Eastman Chemical Company
August 11, 2016 - N°20160228787

The invention provides a method and apparatus for continuous extraction of plant oils from plant tissue using an advantageous azeotrope of ethanol and water and employing the differing solubility of plant oils in ethanol and water to drive formation of a non-toxic oil tincture.
Azeotropic compositions of 1,1,3,3-tetrachloroprop-1-ene and hydrogen fluoride
Honeywell International Inc.
August 04, 2016 - N°20160221902

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.
Integrated process to produce 2,3,3,3-tetrafluoropropene
Honeywell International Inc.
August 04, 2016 - N°20160221898

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.
Azeotrope-like compositions comprising 1-chloro-3,3,3-trifluoropropene
Honeywell International Inc.
July 28, 2016 - N°20160215190

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.
Azeotrope-like compositions of tetrafluoropropene and alcohols
Honeywell International Inc.
June 30, 2016 - N°20160184194

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.
Process system for separating chemicals, distillation column arrangement, and method of separating chemicals
Honeywell International Inc.
June 23, 2016 - N°20160175735

An arrangement for separating chemicals comprises a first distillation column (100) and the first distillation column (100) receives a mixture that comprises water and at least two organic acids and extractant that comprises at least one of the following: hexanol, an ester of hexanol with said at least one organic acid and 2-methylpentanol. The first distillation column (100) forms a heterogeneous azeotrope of ...
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