1,1,1,3,3-pentafluorobutane refrigerant compositions comprising fluoroether and uses thereof
IPC분류정보
국가/구분
United States(US) Patent
등록
국제특허분류(IPC7판)
C09K-005/04
C09K-005/00
출원번호
US-0014333
(2004-12-16)
발명자
/ 주소
Minor,Barbara Haviland
Nappa,Mario J.
Sievert,Allen C.
출원인 / 주소
E. I. du Pont de Nemours and Company
인용정보
피인용 횟수 :
1인용 특허 :
8
초록▼
Disclosed herein are 1,1,1,3,3-pentafluorobutane refrigerant or heat transfer fluid compositions further comprising fluoroether, which are useful in refrigerain or air conditioning apparatus or as heat transfer fluids. The compositions of the present invention are also useful in centrifugal compress
Disclosed herein are 1,1,1,3,3-pentafluorobutane refrigerant or heat transfer fluid compositions further comprising fluoroether, which are useful in refrigerain or air conditioning apparatus or as heat transfer fluids. The compositions of the present invention are also useful in centrifugal compressor apparatus that employ two-stage compressors or single slab.single pass heat exchangers.
대표청구항▼
What is claimed is: 1. An azeotropic or near-azeotropic composition selected from the group consisting of: about 1 to about 99 weight percent 1,1,1,3,3-pentafluorobutane and about 1 to about 99 weight percent 1,1,1,3,3,3-hexafluoro-2-methoxypropane. 2. The composition of claim 1, further compris
What is claimed is: 1. An azeotropic or near-azeotropic composition selected from the group consisting of: about 1 to about 99 weight percent 1,1,1,3,3-pentafluorobutane and about 1 to about 99 weight percent 1,1,1,3,3,3-hexafluoro-2-methoxypropane. 2. The composition of claim 1, further comprising at least one ultra-violet fluorescent dye selected from the group consisting of naphthalimides, perylenes, coumarins, anthracenes, phenanthracenes, xanthenes, thioxanthenes, naphthoxanthenes, fluoresceins, and derivatives of said dye and combinations thereof. 3. The composition of claim 2, further comprising at least one solubilizing agent selected from the group consisting of hydrocarbons, dimethylether, polyoxyalkylene glycol ethers, amides, ketones, nitriles, chlorocarbons, esters, lactones, aryl ethers, hydrofluoroethers, and 1,1, 1-trifluoroalkanes; and wherein the refrigerant and solubilizing agent are not the same compound. 4. The composition of claim 3, wherein said solubilizing agent is selected from the group consisting of: a) polyoxyalkylene glycol ethers represented by the formula R1[(OR2)xOR3]y, wherein: x is an integer from 1 to 3; y is an integer from 1 to 4; R1 is selected from hydrogen and aliphatic hydrocarbon radicals having 1 to 6 carbon atoms and y bonding sites; R2 is selected from aliphatic hydrocarbylene radicals having from 2 to 4 carbon atoms; R3 is selected from hydrogen, and aliphatic and alicyclic hydrocarbon radicals having from 1 to 6 carbon atoms; at least one of R1 and R3 is selected from said hydrocarbon radicals; and wherein said polyoxyalkylene glycol ethers have a molecular weight of from about 100 to about 300 atomic mass units; b) amides represented by the formulae R1CONR 2R3 and cyclo-[R4CON(R5)--], wherein R 1, R2, R3 and R5 are independently selected from aliphatic and alicyclic hydrocarbon radicals having from 1 to 12 carbon atoms, and at most one aromatic radical having from 6 to 12 carbon atoms; R4 is selected from aliphatic hydrocarbylene radicals having from 3 to 12 carbon atoms; and wherein said amides have a molecular weight of from about 100 to about 300 atomic mass units; c) ketones represented by the formula R1COR2 , wherein R1 and R2 are independently selected from aliphatic, alicyclic and aryl hydrocarbon radicals having from 1 to 12 carbon atoms, and wherein said ketones have a molecular weight of from about 70 to about 300 atomic mass units; d) nitriles represented by the formula R1CN, wherein R1 is selected from aliphatic, alicyclic or aryl hydrocarbon radicals having from 5 to 12 carbon atoms, and wherein said nitriles have a molecular weight of from about 90 to about 200 atomic mass units; e) chlorocarbons represented by the formula RClx, wherein; x is selected from the integers 1 or 2; R is selected from aliphatic and alicyclic hydrocarbon radicals having from 1 to 12 carbon atoms; and wherein said chlorocarbons have a molecular weight of from about 100 to about 200 atomic mass units; f) aryl ethers represented by the formula R1OR 2, wherein: R1 is selected from aryl hydrocarbon radicals having from 6 to 12 carbon atoms; R2 is selected from aliphatic hydrocarbon radicals having from 1 to 4 carbon atoms; and wherein said aryl ethers have a molecular weight of from about 100 to about 150 atomic mass units; g) 1,1,1-trifluoroalkanes represented by the formula CF 3R1, wherein R1 is selected from aliphatic and alicyclic hydrocarbon radicals having from about 5 to about 15 carbon atoms; i) hydrofluoroethers represented by the formula R1 OCF2CF2H, wherein R1 is selected from aliphatic and alicyclic hydrocarbon radicals having from about 5 to about 15 carbon atoms; and j) lactones represented by structures [B], [C], and [D]: wherein, R1 through R8 are independently selected from hydrogen, linear, branched, cyclic, bicyclic, saturated and unsaturated hydrocarbyl radicals; and the molecular weight is from about 100 to about 300 atomic mass units; and k) esters represented by the general formula R1CO 2R2, wherein R1 and R2 are independently selected from linear and cyclic, saturated and unsaturated, alkyl and aryl radicals; and wherein said esters have a molecular weight of from about 80 to about 550 atomic mass units. 5. A method for using the composition of claim 3, said method comprising: introducing the composition into a compression refrigeration or air conditioning apparatus by (I) dissolving the ultraviolet fluorescent dye in the refrigerant composition of heat transfer fluid in the presence of the solubilizing agent, and introducing the combination into said compression refrigeration or air conditioning apparatus or (ii), combining solubilizing agent and UV flurorescent dye and introducing said combination into refrigeration or air conditioning apparatus containing refrigerant and/or heat transfer fluid. 6. A method for using the composition of claim 2 or 3 in a compression refrigeration or air conditioning apparatus, said method comprising providing said composition to said apparatus, and providing a suitable means for detecting said composition at a leak point or in the vicinity of said apparatus. 7. A method of using the composition of claim 2 or 3, said method comprising: (i) producing refrigeration by evaporating said composition in the vicinity of a body to be cooled and thereafter condensing said composition; or (ii) producing heat by condensing said composition in the vicinity of the body to be heated and thereafter evaporation said composition. 8. The composition of claim 1 or 3 further comprising a thermal stabilizer or odor masking agent. 9. The composition of claim 8 wherein said thermal stabilizer is nitromethane. 10. A method of using the composition of claim 1, said method comprising, producing heat or refrigeration in a refrigeration or air conditioning apparatus employing a multi-stage centrifugal compressor. 11. The method of claim 10 wherein said multi-stage centrifugal compressor is a two-stage centrifugal compressor. 12. The method of claim 10, wherein said refrigeration or air conditioning apparatus further employs a single slab/single pass heat exchanger. 13. A method of using the composition of claim 1, said method comprising producing heat or refrigeration in a refrigeration or air conditioner apparatus employing a single slab/single pass heat exchanger. 14. An azeotropic composition selected from the group consisting of: 84.3 weight percent 1,1,1,3,3-pentafluorobutane and 15.7 weight percent 1,1,1,3,3,3-hexafluoro-2-methoxypropane having a vapor pressure of about 14.7 psia (101 kPa) at a temperature of about 39.6째 C. 15. A process for producing refrigeration, said process comprising evaporating the composition of claim or 14, in the vicinity of a body to be cooled, and thereafter condensing said composition. 16. A process for producing heat, said process comprising condensing the composition of claim or 14 in the vicinity of a body to be heated, and thereafter evaporating said composition. 17. A method of using the compositions of claim or 4, for heat transfer, said method comprising transferring said composition from a heat source to a heat sink. 18. The composition of claim or 14 further comprising at least one ultra-violet fluorescent dye selected from the group consisting of naphthalimides, perylenes, coumarins, anthracenes, phenanthracenes, xanthenes, thioxanthenes, naphthoxanthenes, fluoresceins, derivatives of said dye, and combinations thereof.
연구과제 타임라인
LOADING...
LOADING...
LOADING...
LOADING...
LOADING...
이 특허에 인용된 특허 (8)
Minor Barbara Haviland, 1,1,2,2,3,3,4,4-octafluorobutane azeotropic (like) compositions.
Desbiendras Daniel (Villetaneuse FRX) Michaud Pascal (Saint-Gratien FRX), Composition based on 1,1,1,3,3-pentafluorobutane and methylene chloride, for the cleaning and/or drying of solid surface.
Singh, Rajiv Ratna; Wilson, David Paul; Thomas, Raymond Hilton Percival; Richard, Robert Gerard, Hydrofluorocarbon refrigerant compositions soluble in lubricating oil.
※ AI-Helper는 부적절한 답변을 할 수 있습니다.