TH76476A - Fluoro ether refrigerant mixtures and their uses - Google Patents

Abstract

The DC60 (28/03/48) disclosed here is a fluoroethylene refrigerant or heat transfer fluid mixture that is useful in refrigeration equipment and Conditioning or heat transfer fluid, the mixture of this invention Also useful in centrifugal compressor systems. One of the passes disclosed here is a refrigerant or fluoroethylene heat transfer fluid mixture that is useful in heating equipment. Cold and Conditioning or heat transfer fluid, the mixture of this invention It is also useful in a centrifugal air compressor system. That use a two stage air compressor or a single plate heat exchanger.

Claims (16)

1. Fluoroether refrigerants or heat transfer fluid mixtures. Such mixtures are selected from a group containing 2-difluoromethoxy-1,1,1-trifluoroethane, 1,1-difluoro-2-trifluoromethoxyethane, 1,1,1,2,2-pentafluoro-2-methoxyethane, 2-difluoromethoxy-1,1,1,2-detrafluoroethane, 1-difluoromethoxy-1,1,2,2-tetrafluoroethane, 2-methoxy-1,1,1-trifluoroethane, 1,1,1,2,2-pentafluoro-2-(2,2,2-trifluoroethoxy)ethane, and 1-(2,2,2-trifluoroethoxy)-1,1,2,2-tetrafluoroethane. 1,1,2,2,3,3,-hexafluoro-3-methoxypropane 1-(1,1-difluoroethoxy)-1,1,2,2-tetrafluoroethane 3-(difluoromethoxy)-1,1,2,2-tetrafluoropropane 2-fluoromethoxy-1,1,1,2-tetrafluoroethane 2-methoxy-1,1,1,2-tetrafluoroethane 1-difluoromethoxy-2,2-difluoroethane 2-methoxy-1,1,2-trifluoroethane 1,1-difluoro-2-methoxyethane 1,1,1,2,2,3,3-heptafluoro-3-methoxypropane 1,1,3,3-tetrafluoro-1-(trifluoromethoxy)propane 1-(2,2-difluoroethoxy)-1,1,2,2,2-pentafluoroethane 1,1,2,2-tetrafluoro-3-(trifluoromethoxy)propan 1,1,1,2-tetrafluoro-2-(2,2,2-difluoroethoxy)ethane 1,1,1,3,3,3-hexafluoro-2-(fluoromethoxy)propan 1,1,2,2-tetrafluoro-1-(1,2,2-trifluoroethoxy)ethane 1,1,2-trifluoro-1-methoxy-2-(trifluoromethoxy)ethane 1,1,1,2,2-pentafluoro-3-methoxypropan 2-(difluoromethoxy)-1,1,1-trifluoropropane 1-(trifluoromethoxy)propane, 1,1,1-trifluoro-2-ethoxyethane, 1,1,1-trifluoro-3-methoxypropane, 1,1,1-trifluoro-2-methoxypropane, 1-ethoxy-1,2,2-trifluoroethane, 1,1,1,2,3-hexafluoro-3-(pentafluoroethoxy)propane, 2-ethoxy-1,1,1,3,3,3-hexafluoropropane, 1-(1,1,2,2-tetrafluoroethoxy)propane, 3-ethoxy-1,1,2,2-tetrafluoropropane, 2-(1,1,2,2-tetrafluoroethoxy)propane, 2,2,3,4,5,5-hexafluorotetaminehydrofuran 1-(1,1,2,2-tetrafluoroethoxy)propane, 3-ethoxy-1,1,2,2-tetrafluoropropane, 2-(1,1,2,2-tetrafluoroethoxy)propane, and 2,3-difluoro-4-(trifluoromethyl)oxytane. 2. Suitable fluoroether refrigerants or heat transfer fluid mixtures for use in refrigeration or air conditioning equipment utilizing (i) centrifugal compressors, or (ii) multistage centrifugal compressors, or (iii) single-pass/plate heat exchangers. Such mixtures may be selected from the group containing 2-difluoromethoxy-1,1,1-trifluoroethane, 1,1-difluoro-2-trifluoromethoxyethane, 1,1,1,2,2-pentafluoro-2-methoxyethane, 2-difluoromethoxy-1,1,1,2-tetrafluoroethane, 1-difluoromethoxy-1,1,2,2-tetrafluoroethane, and 2-methoxy-1,1,1-trifluoroethane. 1,1,1,2,2-pentafluoro-2-(2,2,2-trifluoroethoxy)ethane 1-(2,2,2-trifluoroethoxy)-11,2,2-tetrafluoroethane 1,1,2,2,3,3-hexafluoro-3-methoxypropane 1-(1,1-difluoroethoxy)-1,1,2,2-tetrafluoroethane 3-(difluoromethoxy)-1,1,2,2-tetrafluoropropane 1-(difluoromethoxy)-1,1,2-trifluoroethane 1-(difluoromethoxy)-1,2,2-trifluoroethane 2-fluoromethoxy-1,1,2,2-tetrafluoroethane 2-methoxy-1,1,2,2-tetrafluoroethane 1-difluoromethoxy-2,2-difluoroethane, 2-methoxy-1,1,2-trifluoroethane, 1,1-difluoro-2-methoxyethane, 1,1,1,2,2,3,3,heptafluoro-3-methoxypropane, 1,1,3,3-tetrafluoro-1-(trifluoromethoxy)propane, 1-(2,2-difluoroethoxy)-1,1,2,2,2-pentafluoroethane, 3-(difluoromethoxy)-1,1,1,2,2-pentafluoropropane, 1,1,2,2-tetrafluoro-3-(trifluoromethoxy)propane, 1,1,1,2-tetrafluoro-2-(2,2,2-trifluoroethoxy)ethane 1,1,1,3,3,3-hexafluoro-2-(fluoromethoxy)propane 1,1,2,2-tetrafluoro-1-(1,2,2-trifluoroethoxy)ethane 1,1,2-trifluoro-1-methoxy-2-(trifluoromethoxy)ethane 1,1,1,2,3,3-hexafluoro-3-methoxypropane 1,1,1,3,3,3-hexafluoro-2-methoxypropane 1,1,1,2,2-pentafluoro-3-methoxypropane 2-(difluoromethoxy)-1,1,1-trifluoropropane 2-ethoxy-1,1,1,2-tetrafluoroethane 1-ethoxy-1,1,2,2-tetrafluoroethane 1-(trifluoromethoxy)propane, 1,1,1-trifluoro-2-ethoxyethane, 1,1,1-trifluoro-3-methoxypropane, 1,1,1-trifluoro-2-methoxypropane, 1-ethoxy-1,2,2-trifluoroethane, 1,1,1,2,3,3-hexafluoro-3-(pentafluoroethoxy)propane, 2-ethoxy-1,1,1,2,3,3,3-heptafluoropropane, 3-ethoxy-1,1,1,2,3,3,3-heptafluoropropane, 2-ethoxy-1,1,1,3,3,3-hexafluoropropane, 1-(1,1,2,2-tetrafluoroethoxy)propane 3-ethoxy-1,1,2,2-tetrafluoropropane, 2-(1,1,2,2-tetrafluoroethoxy)propane, 2,2,3,4,5,5-hexafluorotetrahydrofuran, 2,3-difluoro-4-(trifluoromethyl)oxytane, 1-(1,1,2,2-tetrafluoroethoxy)propane, 3-ethoxy-1,1,2,2-tetrafluoropropane, 2-(1,1,2,2-tetrafluoroethoxy)propane, 2,3-difluoro-4-(trifluoromethyl)oxytane, mixtures containing 1,1,1,2,2,3,3,4,4-nonafluorobutane-4. -Methoxybutane and 2-(difluoromethoxymethyl)-1,1,1,2,3,3,3-heptafluoropropane (C4F9OCH3) and a mixture containing 1-ethoxy-1,1,2,2,3,3,4,4-nonafluorobutane and 2-(ethoxydifluoromethyl)-1,1,1,2,3,3,3-heptafluoropropane (C4F9OC2H5). 3. Method of applying the combination of claims under Article 2. Such method involves the production of heat or cooling in refrigeration or air conditioning equipment, where such equipment uses a multi-stage centrifugal air compressor. 4. Process for the production of refrigeration. Such process involves the evaporation of a mixture of either claim 1 or 2 in the vicinity of the object being cooled, and subsequently the condensation of that mixture. 5. Process for the production of heat. Such process involves the condensation of a mixture of either claim 1 or 2 in the vicinity of the heated object, and subsequently the evaporation of that mixture. 6. A method of using a mixture of either claim 1 or 2 for heat transfer; such method involves the transfer of the mixture from a heat source to a heat exchanger. 7. Mixtures of Claim 1. Such mixtures shall consist of at least one selected ultraviolet fluorescent dye from the group comprising naphthalimide, perilene, coumarin, anthrazine, phene, anthrazine, xanthine, thioxanthine, naphthoxanthine, fluorescein, derivatives of such dyes, and their combinations. 8. Compounds of claim paragraph 2. Such compounds shall consist of at least one ultraviolet fluorescent dye of a choice from the group consisting of naphthalimide, perilene, coumarin, anthracene, phenanthracene, xanthine, thiosanthine, naphthoxanthine, fluorescein, derivatives of such dyes, and their combinations. 9. A mixture of claims under clause 7 which shall be further composed of at least one selectable solute from the group of hydrocarbons, dimethyl ethers, polyoxyalkylene glycol ethers, amides, ketones, nitrites, chlorocarbons, esters, lactones, aryl ethers, fluoroethers and 1,1,1-trifluoroalkanes, and where the refrigerant and solute are not the same compound. 10. A mixture of claims under clause 9 where the solute is chosen from a group consisting of a) polyoxyalkylene glycol ethers substituted with the formula R1[(OR2)x OR3]y, where x is an integer from 1 to 3; y is an integer from 1 to 4; R1 is chosen from hydrogen and aliphatic radicals of hydrocarbons with 1 to 6 carbon atoms and y bond position; R2 is chosen from aliphatic hydrocarbon radicals with 2 to 4 carbon atoms; R3 is chosen from hydrogen and aliphatic and alicyclic hydrocarbon radicals with 1 to 6 carbon atoms; at least one of R1 and R3 is chosen from such hydrocarbon radicals; and where the polyoxyalkylene glycol ethers a) Amides represented by the formulas R1CONR2R3 and cyclo-[R4CON(R5)-], where R1, R2, R3, and R5 are freely selectable from aliphatic and alicyclic hydrocarbon radicals ranging from 1 to 12 carbon atoms and at most one aromatic radical ranging from 6 to 12 carbon atoms, and R4 is selectable from aliphatic hydrocarboline radicals ranging from 3 to 12 carbon atoms, and where these amides have molecular weights ranging from approximately 100 to approximately 300 atomic mass units; c) Ketones represented by the formula R1COR2, where R1 and R2 are freely selectable from aliphatic, alicyclic, and aryl hydrocarbon radicals ranging from 1 to 12 carbon atoms, and where these ketones have molecular weights ranging from approximately 100 to approximately 300 atomic mass units. d) Nitriles represented by the formula R1CN, where R1 is chosen from aliphatic, alicyclic, or aryl hydrocarbon radicals containing 5 to 12 carbon atoms, and where such nitriles have a molecular weight from approximately 70 to approximately 300 atomic mass units; e) Chlorocarbons represented by the formula RClx, where x is chosen from the integer 1 or 2, R is chosen from aliphatic and alicyclic hydrocarbon radicals containing 1 to 12 carbon atoms, and where such chlorocarbons have a molecular weight from approximately 100 to approximately 200 atomic mass units; f) aryl ethers represented by the formula R1OR2, where R1 is chosen from... ) 1,1,1-trifluoroalkane represented by the general formula CF3R1, where R1 is selected from aliphatic and alicyclic hydrocarbon radicals containing 6 to 12 carbon atoms, and where such aryl ethers have molecular weights from approximately 100 to approximately 150 atomic mass units; g) 1,1,1-trifluoroalkane represented by the general formula CF3R1, where R1 is selected from aliphatic and alicyclic hydrocarbon radicals containing approximately 5 to approximately 15 carbon atoms; i) hydrofluoroether represented by the general formula R1OCF2CF2H, where R1 is selected from aliphatic and alicyclic hydrocarbon radicals. j) lactones represented by structures [B], [C] and [D] (chemical formulas) (chemical formulas) (chemical formulas) [B] [C] [D], where R1 to R8 are freely chosen from linear, branched, saturated and unsaturated alkyl or aryl radicals and have molecular weights from approximately 100 to approximately 300 atomic mass units, and k) esters represented by the general formula R1COR2, where R1 and R2 are freely chosen from linear and saturated and unsaturated alkyl and aryl radicals and where such esters have molecular weights from approximately 80 to approximately 550 atomic mass units. 11. Methods of application of the mixtures of claim 9. Such method shall consist of introducing the mixture into a refrigeration or air conditioning device for compressed air by (i) dissolving the ultraviolet fluorescent dye in the refrigerant or heat transfer fluid mixture in the presence of a solvent and introducing the mixture into such device, or (ii) combining the solvent and the ultraviolet fluorescent dye and introducing the mixture into such device containing the refrigerant or heat transfer fluid mixture. 12. The method of applying the mixture of either claim 7 or 9, which includes providing the mixture to the device and providing a suitable route for detecting the mixture at or near the leak point of the device. 13. Methods of applying the mixture of either of the claims in Article 7 or 9. Such methods shall consist of (i) the production of cooling by evaporating the mixture in the vicinity of the cooled object and subsequently condensing the mixture, or (ii) the production of heating by condensing the mixture in the vicinity of the heated object and subsequently evaporating the mixture. 14. A mixture of either claim 1 or 2, which is further contained with a thermal stabilizer or odor masking agent. 15. A mixture of claims under Article 14, whereby the thermal stabilizer is nitromethane. 16. Method of claim number 3, where the multi-stage air compressor is a two-stage centrifugal air compressor.