CN1054791A - Dichlorotrifluoroethane, 1,1-two chloro-1-fluoroethanes and methyl alcohol and/or alcoholic acid stabilization azeotropic, azeotropic or Azeotrope-like compositions - Google Patents
Dichlorotrifluoroethane, 1,1-two chloro-1-fluoroethanes and methyl alcohol and/or alcoholic acid stabilization azeotropic, azeotropic or Azeotrope-like compositions Download PDFInfo
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- CN1054791A CN1054791A CN 91101476 CN91101476A CN1054791A CN 1054791 A CN1054791 A CN 1054791A CN 91101476 CN91101476 CN 91101476 CN 91101476 A CN91101476 A CN 91101476A CN 1054791 A CN1054791 A CN 1054791A
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Abstract
The azeotropic of stabilization or Azeotrope-like compositions, comprise dichlorotrifluoroethane and 1,1-two chloro-1-fluoroethanes and methyl alcohol and/or ethanol, add the Nitromethane 99Min., 1 of the given combination form of stabilizing effective amount, 2-propylene oxide, 1,2-butylene oxide ring, Diisopropylamine, lupetidine and a kind of lower alkoxy phenol.
Description
Along with the direction of modern circuit card towards circuit and component density increase develops, the thorough cleaning of circuit card after welding becomes an even more important requirement.The existing commercial run of soldering of electronic components generally comprises on circuit card, with flux composition coating entire circuit plate, the coated face of circuit card is passed, again by the fused scolder from the preheater top.Flux composition has cleaned the metal parts of conduction, has promoted the adhesion of scolder.Major part is a rosin in the composition of solder flux commonly used, can use separately or share with the hydrochloride or the oxalic acid derivative of active additive such as amine.
After the welding, because a part of rosin generation thermal destruction usually will remove deflux and flux residue from circuit card with the organic solvent composition.Because the requirement to the depollution thing that gets on from circuit card is very strict, so present industrial most of circuit card purging method all will adopt steam deflux technology.In the routine operation of steam deflux device, make the good circuit card of welding by a boiling organic solvent pond earlier, thereby remove most of rosin, comprise the rosin of thermal destruction; Then by a pond that fills new steaming solvent; Pass through the solvent vapour of boiling pool top at last, thereby carry out last cleaning with the cleaning solvent distillation that is condensate on the circuit card.In addition, if desired, spray circuit card with solvent distillation before also can in the end cleaning.
Dichlorotrifluoroethane and 1,1-two chloro-1-fluoroethanes and methyl alcohol and/or alcoholic acid azeotropic or Azeotrope-like compositions, though be the excellent solvent system concerning the cleaning circuit plate, but concerning practical application in industry, the situation of these solvent systems and many solvent systems is the same, all need carry out stabilization at forming variation in use and long storage process.Some changes, and the interaction between for example oxidation, polymerization, component etc. may produce the product that the circuit card that cleaned or solvent compositions itself are had disadvantageous effect.
So, an object of the present invention is to provide dichlorotrifluoroethane and 1,1-two chloro-1-fluoroethanes and methyl alcohol and/or alcoholic acid azeotropic or Azeotrope-like compositions, these compositions use and the long storage process in form and stablize, and reduced the formation that its storage and use (for example being used for the cleaning of circuit card) is had the untoward reaction product of disadvantageous effect as far as possible.
The azeotropic or the Azeotrope-like compositions of some stabilizations have been had now found that, these compositions comprise the dichlorotrifluoroethane and 1 of significant quantity, 1-two chloro-1-fluoroethanes and methyl alcohol and/or ethanol, and the following compounds of stabilizing effective amount: Nitromethane 99Min., lower alkoxy phenol, be selected from 1,2-propylene oxide and 1, the epoxide of 2-butylene oxide ring and be selected from Diisopropylamine and the amine of lupetidine; 1,2-butylene oxide ring and/or lupetidine; Nitromethane 99Min. and at least a 1,2 epoxy prapane, 1 that is selected from, the compound of 2-butylene oxide ring, Diisopropylamine and lupetidine; Nitromethane 99Min., 1,2 epoxy prapane and 1, the 2-butylene oxide ring; Nitromethane 99Min., Diisopropylamine and be selected from 1,2 epoxy prapane and 1, the epoxide of 2-butylene oxide ring; Nitromethane 99Min., lower alkoxy phenol and at least a amine that is selected from Diisopropylamine and lupetidine.
The present invention also comprises stabilization azeotropic or the Azeotrope-like compositions that is grouped into by following one-tenth basically: about 3-70%(weight) dichlorotrifluoroethane, about 25-94.9%(weight) 1,1-two chloro-1-fluoroethanes and about 0.1-5%(weight) methyl alcohol and/or ethanol and stabilizing effective amount Nitromethane 99Min., lower alkoxy phenol, be selected from 1,2-propylene oxide and 1, the epoxide of 2-butylene oxide ring and be selected from Diisopropylamine and the amine of lupetidine.The present invention also comprises stabilization azeotropic or the Azeotrope-like compositions that is grouped into by following one-tenth basically: about 30-70%(weight) dichlorotrifluoroethane, about 25-69%(weight) 1,1-two chloro-1-fluoroethanes and about 1-5%(weight) methyl alcohol and/or ethanol and stabilizing effective amount Nitromethane 99Min., lower alkoxy phenol, be selected from 1,2-propylene oxide and 1, the epoxide of 2-butylene oxide ring and be selected from Diisopropylamine and the amine of lupetidine.
Significant quantity is meant dichlorotrifluoroethane, 1, and each component in 1-two chloro-1-fluoroethanes, methyl alcohol and/or the ethanol causes forming the amount of azeotropic or Azeotrope-like compositions after mixing.
Stabilizing effective amount is meant the amount of following ingredients:
△ Nitromethane 99Min., lower alkoxy phenol, be selected from 1,2 epoxy prapane and 1, the epoxide of 2-butylene oxide ring and be selected from Diisopropylamine and the amine of lupetidine; Or
△ 1,2-butylene oxide ring and/or lupetidine; Or
△ Nitromethane 99Min. and at least a 1,2 epoxy prapane, 1 that is selected from, the compound of 2-butylene oxide ring, Diisopropylamine and lupetidine; Or
△ Nitromethane 99Min., 1,2 epoxy prapane and 1, the 2-butylene oxide ring; Or
△ Nitromethane 99Min., Diisopropylamine and be selected from 1,2 epoxy prapane and 1, the epoxide of 2-butylene oxide ring; Or
△ Nitromethane 99Min., lower alkoxy phenol and at least a amine that is selected from diisopropyl alkane and lupetidine;
These quantity with by dichlorotrifluoroethane and 1, after azeotropic that 1-two chloro-1-fluoroethanes and methyl alcohol and/or ethanol are formed or Azeotrope-like compositions mix, can make these azeotropic or Azeotrope-like compositions use and store industrial, that is, provide industrial qualified outward appearance, corrodibility and being kept perfectly property.
Phrase " basically by ... the azeotropic of composition or Azeotrope-like compositions ", it is the mixture that will comprise all components (any amount) that contains azeotrope described herein, this mixture is as carrying out fractionation, to at least one cut, produce the azeotrope that contains all azeotrope components, this mixture can Individual existence, also can with the combination of other compound, for example one or more with the essentially identical temperature of described cut under the compound that distills out.
Lower alkoxy phenol is meant methoxyphenol, thanatol, propoxy-phenol and/or butoxy phenol.Preferred lower alkoxy phenol is the 4-methoxyphenol.
The implication of term " dichlorotrifluoroethane " comprises 1,1-two chloro-2,2,2-Halothane (HCFC-123) and/or 1,2-two chloro-1,1, the mixture of 2-Halothane (HCFC-123a) and HCFC-123 and HCFC-123a.Commercially available HCFC-123 may contain the weight up to about 20.0%() 1,2-two chloro-1,1,2-Halothane (HCFC-123a), this mixture is also included within this term of dichlorotrifluoroethane, and it also may comprise a small amount of other material that can obviously not change present composition azeotropic or class azeotropic characteristic simultaneously.
The preferred stabilized composition of the present invention comprises the dichlorotrifluoroethane and 1 of significant quantity, 1-two chloro-1-fluoroethanes and methyl alcohol and/or alcoholic acid mixture, these compositions form azeotropic or Azeotrope-like compositions, and can contain the 0.1-0.8%(weight of having an appointment) Nitromethane 99Min., about 0.05-0.4%(weight) 1,2-propylene oxide and/or 1, the 2-butylene oxide ring, about 0.025-0.2%(weight) Diisopropylamine and/or 2, the 6-lupetidine, and about 0.002-0.016%(weight) lower alkoxy phenol, described weight percent are based on that the weight of azeotropic or Azeotrope-like compositions calculates.
Recognize as this area, azeotropic or Azeotrope-like compositions are the mixtures of two or more different componentss, if this mixture is liquid under setting pressure, it will seethe with excitement under substantially invariable temperature, this temperature may be higher or lower than the boiling temperature of each component, and under this temperature when boiling steam the composition and the composition of liquid basic identical.The essential characteristic of azeotropic or Azeotrope-like compositions is: under setting pressure, the boiling point of liquid composition is a fixed, and the composition of the steam of boiling composition top is the composition of boiling liquid composition basically, that is, fractionation does not take place liquid ingredient basically.This area recognizes that also the boiling point of azeotropic or Azeotrope-like compositions all can change when said composition is seethed with excitement with the weight percent of each component under different pressure.Like this, azeotropic or Azeotrope-like compositions just can limit with the unique mutual relationship that exists between each component, perhaps the compositing range with component limits, and perhaps recently limits with the weight percent of each component in composition, and it is characterized by has the fixed boiling point under specified pressure.
Azeotropic of the present invention or Azeotrope-like compositions comprise the dichlorotrifluoroethane and 1 of significant quantity, 1-two chloro-1-fluoroethanes and methyl alcohol and/or alcoholic acid mixture, more particularly, composition of the present invention comprises about 3-70%(weight) dichlorotrifluoroethane, about 30-94.5%(weight) 1,1-two chloro-1-fluoroethanes and about 0.1-5%(weight) methyl alcohol and/or alcoholic acid mixture.More concrete again say that composition of the present invention is basically by about 30-70%(weight) dichlorotrifluoroethane, about 25-70%(weight) 1,1-two chloro-1-fluoroethanes and about 1-5%(weight) methyl alcohol and/or ethanol composition.Constant-boiling, azeotrope-like composition of the present invention is being in about 30-32 ℃ boiling under the normal atmosphere (760mmHg) substantially.Relevant these azeotropic or Azeotrope-like compositions are narrated in more detail, see the United States Patent (USP) 4 that on September 5th, 1989 issued, 863, the U. S. application 07/297 that on January 17th, 630 and 1989 submitted to, the U. S. application 07/297 that on January 17th, 366 and 1989 submitted to, 467, all these documents are all classified reference as at this.
Preferred azeotropic Azeotrope compositions of the present invention or constant-boiling, azeotrope-like composition have following composition: about 36%(weight) 1, and 1-two chloro-2,2,2-Halothane, about 61%(weight) 1,1-two chloro-1-fluoroethanes and about 3%(weight) methyl alcohol.This azeotropic azeotropic or Azeotrope-like compositions substantially be under the normal atmosphere (760mmHg) in about 30 ℃ of boilings.
A kind of preferred azeotropic azeotropic of the present invention or Azeotrope-like compositions are: about 40%(weight) 1, and 1-two chloro-2,2,2-Halothane, about 59%(weight) 1,1-two chloro-1-fluoroethanes and about 1%(weight) ethanol.This azeotropic azeotropic or Azeotrope-like compositions are being in about 31 ℃ of boilings under the normal atmosphere substantially.
Above-mentioned azeotropic azeotropic or Azeotrope-like compositions are the active solvents of cleaning circuit plate.The feature of this kind solvent composition is to have following desirable character: boiling point is lower, nonflammable, toxicity is lower, strong to the solvency power of solder flux and flux residue.Each component because have class azeotropic person's character and boiling point lower, do not lose its desirable characteristic so be easy to recovery and reuse.
Dichlorotrifluoroethane, 1,1-two chloro-1-fluoroethanes and methyl alcohol and/or alcoholic acid azeotropic or Azeotrope-like compositions, though it is functional in printed circuit board (PCB) steam deflux-degreasing operation, but also recognize, in order to utilize the real advantage of these solvent compositions peculiar properties, should make these compositions have desirable some other character, particularly will be under the situation of industrial these solvent systems of use.
Package stability a kind of desirable character that comes to this.Will be appreciated that, all must be stored usually at any material of industrial use.This storage may be the short period of time, also may be the long period of several months or several years.Therefore, concerning the solvent compositions that will use, should be at carrying out stabilization owing to any significantly harmful variation that oxidation, polymerization or component interphase interaction cause.These variations can cause solvent discoloration, form bad by product (as chlorion and acids) and/or form insoluble polymkeric substance.Have now found that, in above-mentioned concentration range, add one group of inhibitor, can produce effective shelf-stable and turn usefulness into.
Industrial another characteristic of wishing that solvent system has is to use the stability in the process.For example, as mentioned above, in steam deflux cleaning operation, the circuit card elder generation that clean to remove most of rosin, comprises the rosin of thermal destruction by the individual pond that fills boiling solvent.Organic solvent and thermal source Long contact time in this pond.Circuit card by first pond after again by a pond that fills new steaming solvent, by the solvent vapour of boiling pool top, cleaning solvent carries out last cleaning on the circuit card with being condensate at last.Like this, the heating that organic solvent in use may be continued, this heating or in order to keep the boiling in pond, or new steaming solvent is provided or provides steam to be condensate on the circuit card for cleaning at last in order to make the solvent gasification.Therefore, special hope reduces any variation of solvent system as far as possible, because these variation meetings have the integrity of disadvantageous effect or destruction solvent to cleaning process.As previously mentioned, these variations may be to be caused by the interaction between each component of oxidation, polymerization or solvent system.
For example, chlorofluorocarbon class in azeotropic or the Azeotrope-like compositions and the interaction between the alcohols, a kind of interaction that should reduce as far as possible that comes to this is because this interaction can generate acid product and chlorion.As pointed in one piece of patent (United States Patent (USP) 3,960,746) early, chlorofluorocarbon and lower alcohols be methanol mixture particularly, can corrode the active metal that is commonly used for the circuit card manufactured materials, as zinc and aluminium and some aluminium alloy.Have now found that, can be about 0.1-0.8%(weight to concentration) Nitromethane 99Min. mix in the solvent system of the present invention, thereby effectively stop the corrosion of this class.
At 4-methoxyphenol (concentration is about 0.002-0.016%(weight)) and 1,2-propylene oxide or 1,2-butylene oxide ring (concentration is about 0.05-0.4%(weight)) exists down, Diisopropylamine or lupetidine (concentration is 0.025-0.2%(weight)) can provide excellent stability for solvent system of the present invention.All wt per-cent all is based on dichlorotrifluoroethane, 1, and the weight of 1-two chloro-1-fluoroethanes and methyl alcohol or alcoholic acid azeotropic or Azeotrope-like compositions is calculated.
As indicated among the embodiment, be used for the stablizer of solvent system of the present invention with aforesaid combination, it seems it is to make solvent system stable by interdependently working.Can adopt the stablizer that is higher than prescribed concentration, but under normal circumstances, higher concentration generally can not produce extra inhibition effect.
The azeotropic of a kind of stabilization of the present invention or Azeotrope-like compositions can contain: about 30-70%(weight) dichlorotrifluoroethane, about 25-70%(weight) 1,1-two chloro-1-fluoroethanes, about 1-5%(weight) methyl alcohol, about 0.1-0.8%(weight) Nitromethane 99Min., about 0.05-0.4%(weight) 1,2-propylene oxide or 1,2-butylene oxide ring, about 0.025-0.2%(weight) Diisopropylamine or lupetidine and about 0.002-0.016%(weight) the 4-methoxyphenol.
Above-mentioned stabilized composition of the present invention can contain: about 36%(weight) 1,1-two chloro-2,2,2-Halothane, about 61%(weight) 1,1-two chloro-1-fluoroethanes, about 3%(weight) methyl alcohol, about 0.2%(weight) Nitromethane 99Min., about 0.05%(weight) 1,2-propylene oxide or 1,2-butylene oxide ring, about 0.05%(weight) Diisopropylamine or lupetidine and about 0.004%(weight) the 4-methoxyphenol.
Another kind of stabilization azeotropic of the present invention or Azeotrope-like compositions can contain: about 30-70%(weight) dichlorotrifluoroethane, about 25-70%(weight) 1,1-two chloro-1-fluoroethanes, about 1-5%(weight) ethanol, about 0.1-0.8%(weight) Nitromethane 99Min., about 0.05-0.4%(weight) 1,2-propylene oxide or 1,2-butylene oxide ring, about 0.025-0.2%(weight) Diisopropylamine or lupetidine and about 0.002-0.016%(weight) the 4-methoxyphenol.
Aforementioned stable composition of the present invention can contain: about 40%(weight) 1,1-two chloro-2,2,2-Halothane, about 59%(weight) 1,1-two chloro-1-fluoroethanes, about 1%(weight) ethanol, about 0.2%(weight) Nitromethane 99Min., about 0.05%(weight) 1,2-propylene oxide or 1,2-butylene oxide ring, about 0.05%(weight) Diisopropylamine or lupetidine and about 0.004%(weight) the 4-methoxyphenol.
Like this, the invention provides dichlorotrifluoroethane and 1,1-two chloro-1-fluoroethanes and methyl alcohol or alcoholic acid stabilization azeotropic or Azeotrope-like compositions, these compositions can be long time stored, any variation does not take place or takes place hardly in long storage or industrial use, and can reduce the corrosion of aluminium and the formation of gel to greatest extent.
Mix boil inhibitor in the composition of azeotropic of the present invention or class, i.e. Nitromethane 99Min., 1,2-butylene oxide ring, 1,2 epoxy prapane, Diisopropylamine, lupetidine and 4-methoxyphenol, its preparation method are known technically.
The ozone depletion potential of above-mentioned azeotropic or Azeotrope-like compositions is low, is expected just almost completely to decompose before arriving stratosphere.
Azeotropic of the present invention or Azeotrope-like compositions are owing to have azeotropic properties, and institute is so that reclaim solvent and utilize from steam deflux and degreasing operation.For example, azeotropic mixture of the present invention can be used for as United States Patent (USP) 3,881, and in the 949 described cleanings, above-mentioned patent is classified reference as at this.
The azeotropic of the present invention or the Azeotrope-like compositions that contain each component of composite restrainer can prepare with any method easily, comprise each component of mixing or merging aequum.Preferable methods is each component that takes by weighing aequum, then they is incorporated in the proper container.
Embodiment
To by about 33.0%(weight) dichlorotrifluoroethane, about 64.5%(weight) 1,1-two chloro-1-fluoroethanes and about 2.5%(weight) methyl alcohol carries out package stability compare test in seven days with the solvent system composition that various inhibitor makes up composition, method is: adopt 90% water saturated solvent, 150 milliliters of solvent compositions are refluxed.Each flask is connected with a water cooled condenser, and its top is fixed with some " drierite ze " drying tube, enters test system in order to stop atmospheric water.In addition, some stainless steels (SS-304) sample is placed the reflux solvent steam/air interface place of condenser, stainless steel (SS-304)/aluminium alloy (AL-7075) sample is placed boiling liquid some.
Be used for 1 of these tests, 1-two chloro-1-fluoroethanes contain 500ppm(weight) vinylidene chloride, this is a kind of impurity common in the crude product.But in first test (seeing below), only used 15ppm(weight) vinylidene chloride.The solvent inhibitor system of being tested is described in following table.
After testing exposure, each test system is carried out following test respectively:
1. measure the increase of chlorine ion concentration.Extract the solvent of being tested with isopyknic deionized water, and analyze its chlorine ion concentration.Carefully scraped the metallic surface with pocket knife, take off the corrosion product of metallic surface and don't scrape the bottom metal.The metal fragment that scrapes is sent back in its original flask of once accepting therein to test.In flask, add 100 milliliter of 5% sulfuric acid with the dissolved corrosion product.Analyze the chlorion in this solution.Deduct the background chlorine ion concentration that is present in the original solvents by the chlorion total concn that records, calculate the clean chlorion that records.
The increase of chlorion has generally reflected the loss of solvent system component stability.Stability lost generally increases with acidity.
2. measure corrosion speed in order to following method: with the erasing rubber metallic surface that rubs, brush and stroke this surface, with 1 with ink and pencil, 1,2-Refrigerant R 113, deionized water and acetone rinsing sample were used " drierite ze " siccative dry 24 hours, and samples weighing to 0.0001 is restrained.Metal sample weight loss is represented with mils per year.It is qualified that the corrosion speed of aluminium (AL-7075) is that 4 mils per year promptly are considered to.
3. with following standard the outward appearance of solvent and aluminium sample (AL-7075) is graded:
Outward appearance and grade
Whether grade qualified liquid aluminium-7075(*)
The 0th, no change or change small
Clarification, colourless bright, glossy
Gel-free
The 1st, change very slight but still qualified
The clarification, colourless, the corrosion very slight, or
Very slight person with fixed attention is at the table of about 5-10%
Glue drips the black splotch deposition on the face
2 observe very slight variation between two parties between two parties
May be qualified concerning the purposes of expection
Also may be defective
Clarification, slightly to be corrosion very slight, perhaps exists
Dark.Form the surface of about 10-20%
The black splotch deposition is arranged on the slight gel
Drip
3 do not observe slight but underproof variation
Having in the liquid on about 50% surface has
Spot that normal gel is slight and surface corrosion
Drip
(*) respond the surface that AL-7075 intersects with SS-304 in liquid all takes place.The SS-304 sample is constant substantially in whole test.
Table
AL-7075
Stablizer corrosion speed appearance ratings
Test is wet-solvent C l
-(mil/-
Numbering or dried composition weight % (ppm by weight) year) liquid
aAL-7075
1 D does not have 0 0.2 101
2 W do not have 0 1.2 230
3 W N1 0.2 0.7 2 3 1
4 W DIPA 0.05 1.4 1 3 0
5 W 2，6-DMP 0.05 0.5 3 2 1
6 W NM+ 0.2 0.1 1 2 2
1，2-PO 0.05
7 W NM+ 0.2 1.3 2 2 0
1，2-BO 0.05
8 W NM+ 0.2 1.7 1
b2 0
1，2-BO+ 0.05
1，2-PO 0.05
9 W NM+ 0.2 0.7 1
b2 0
DIPA 0.05
10 W NM+ 0.2 1.8 2 2 2
2，6-DMP 0.05
11 W NM+ 0.2 1.0 1
b2 1
DIPA+ 0.05
4-MP 0.004
12 W NM+ 0.2 0.3 1 1 0
2，6-DMP+ 0.05
4-MP 0.004
13 W NM+ 0.2 1.1 1
b1 0
1，2-PO+ 0.05
DIPA+ 0.05
4-MP 0.004
Table (continuing)
AL-7075
Corrosion speed
The wet stablizer solvent C l of test
-(mil) appearance ratings
Numbering or dried composition weight % (ppm by weight)/year) liquid
aAL-7075
14 W NM+ 0.2 1.7 1 0 0
1，2-BO+ 0.05
DIPA+ 0.05
4-MP 0.004
15 W NM+ 0.2 0.9 1
b0 0
1，2-PO+ 0.05
2，6-DMP+ 0.05
4-MP 0.004
16 W NM+ 0.2 3.1 1
b0 0
1，2-BO+ 0.05
2，6-DMP+ 0.05
4-MP 0.004
17 W do not have 0 0.3 2.6 31
18 W 1，2PO 0.05 0.3 1.3 3 1
19 W 1，2BO 0.05 0.3 1.4 2 1
20 W DIPA+ 0.05 0.5 1.6 2 1
1，2PO 0.05
21 W 2，6DMP+ 0.05 0.7 1.3 2 0+
1，2PO 0.05
22 W NM+ 0.2 1.3 2.0 2 1
1，2PO+ 0.05
DIPA 0.05
23 W NM+ 0.2 0.5 1.5 2 1
1，2BO+ 0.05
DIPA 0.05
24 W NM+ 0.2 1.8 1.5 3 1
1，2PO+ 0.05
2，6DMP 0.05
Table (continuing)
AL-7075
Corrosion speed
The wet stablizer solvent C l of test
-(mil appearance ratings
Numbering or dried composition weight % (ppm by weight)/year) liquid
aAL-7075
25 W NM+ 0.2 0.3 1.3 3 1
1，2BO+ 0.05
2，6DMP 0.05
All grades of a are foundation with gel formation amount in the liquid phase all.
B is lower than the numerical value that provides.
Following table has been listed the implication of used abbreviation in the table.
D=does
W=is wet
1,2-BO=1,2-butylene oxide ring
The NM=Nitromethane 99Min.
The DIPA=Diisopropylamine
1,2-PO=1,2-propylene oxide
The 4-MP=4-methoxyphenol
2,6-DMP=2,6-lupetidine
Claims (25)
1, a kind of azeotropic of stabilization or Azeotrope-like compositions, it comprises the dichlorotrifluoroethane and 1 of significant quantity, 1-two chloro-1-fluoroethanes and methyl alcohol and/or ethanol, add stabilizing effective amount Nitromethane 99Min., lower alkoxy phenol, be selected from 1,2-propylene oxide and 1, the epoxide of 2-butylene oxide ring and be selected from Diisopropylamine and the amine of lupetidine.
2, the stabilization azeotropic or the Azeotrope-like compositions of claim 1, it is being about 30-32 ℃ for the boiling point under the normal atmosphere substantially.
3, the composition of claim 1, the concentration of wherein said Nitromethane 99Min. is that basic calculation is about 0.1-0.8%(weight with the weight of azeotropic or Azeotrope-like compositions).
4, the composition of claim 3, the concentration of wherein said Nitromethane 99Min. is that basic calculation is about 0.2%(weight with the weight of azeotropic or Azeotrope-like compositions).
5, the composition of claim 1, the concentration of wherein said alkoxy phenol is that basic calculation is about 0.002-0.016%(weight with the weight of azeotropic or Azeotrope-like compositions).
6, the composition of claim 5, the concentration of wherein said alkoxy phenol is that basic calculation is about 0.004%(weight with the weight of azeotropic or Azeotrope-like compositions).
7, the composition of claim 1, wherein said alkoxy phenol are the 4-methoxyphenol.
8, the composition of claim 1, the concentration of wherein said epoxide is that basic calculation is about 0.05-0.4%(weight with the weight of azeotropic or Azeotrope-like compositions).
9, the composition of claim 8, the concentration of wherein said epoxide is that basic calculation is about 0.05%(weight with the weight of azeotropic or Azeotrope-like compositions).
10, the composition of claim 1, the concentration of wherein said amine is that basic calculation is about 0.025-0.2%(weight with the weight of azeotropic or Azeotrope-like compositions).
11, the composition of claim 10, the concentration of wherein said amine is that basic calculation is about 0.05%(weight with the weight of azeotropic or Azeotrope-like compositions).
12, the composition of claim 1 wherein contains 1,2 epoxy prapane and Diisopropylamine simultaneously.
13, the composition of claim 1 wherein contains 1,2 epoxy prapane and lupetidine simultaneously.
14, the composition of claim 1 wherein contains 1 simultaneously, 2-butylene oxide ring and Diisopropylamine.
15, the composition of claim 1 wherein contains 1 simultaneously, 2-butylene oxide ring and lupetidine.
16, the stabilization azeotropic or the Azeotrope-like compositions of claim 1, wherein azeotropic or Azeotrope-like compositions are basically by about 3-70%(weight) dichlorotrifluoroethane, about 25-94.9%(weight) 1,1-two chloro-1-fluoroethanes and about 0.1-5%(weight) the methyl alcohol composition.
17, the stabilization azeotropic or the Azeotrope-like compositions of claim 16, wherein azeotropic or Azeotrope-like compositions are basically by about 30-70%(weight) dichlorotrifluoroethane, about 25-70%(weight) 1,1-two chloro-1-fluoroethanes and about 1-5%(weight) the methyl alcohol composition.
18, the stabilization azeotropic or the Azeotrope-like compositions of claim 17, it is basically by about 36%(weight) 1,1-two chloro-2,2,2-Halothane, about 61%(weight) 1,1-two chloro-1-fluoroethanes and about 3%(weight) the methyl alcohol composition.
19, the stabilization azeotropic or the Azeotrope-like compositions of claim 1, it comprises basically by about 3-70%(weight) dichlorotrifluoroethane, about 25-70%(weight) 1,1-two chloro-1-fluoroethanes and about 1-5%(weight) azeotropic or the Azeotrope-like compositions of ethanol composition.
20, the stabilization azeotropic or the Azeotrope-like compositions of claim 19, it comprises about 40%(weight) dichlorotrifluoroethane, about 59%(weight) 1,1-two chloro-1-fluoroethanes and about 1%(weight) ethanol.
21, a kind of azeotropic of stabilization or Azeotrope-like compositions, it comprises the dichlorotrifluoroethane, 1 of significant quantity, and 1-two chloro-1-fluoroethanes and methyl alcohol and/or ethanol add 1 of stabilizing effective amount, 2-butylene oxide ring and/or lupetidine.
22, a kind of azeotropic of stabilization or Azeotrope-like compositions, it comprises the dichlorotrifluoroethane, 1 of significant quantity, 1-two chloro-1-fluoroethanes and methyl alcohol and/or ethanol, add the Nitromethane 99Min. of stabilizing effective amount and at least aly be selected from 1,2-propylene oxide, 1, the compound of 2-butylene oxide ring, Diisopropylamine and lupetidine.
23, a kind of azeotropic of stabilization or Azeotrope-like compositions, it comprises the dichlorotrifluoroethane, 1 of significant quantity, and 1-two chloro-1-fluoroethanes and methyl alcohol and/or ethanol add Nitromethane 99Min., the 1,2 epoxy prapane and 1 of stabilizing effective amount, 2-butylene oxide ring.
24, a kind of azeotropic of stabilization or Azeotrope-like compositions, it comprises the dichlorotrifluoroethane, 1 of significant quantity, and 1-two chloro-1-fluoroethanes and methyl alcohol and/or ethanol add Nitromethane 99Min., the Diisopropylamine of stabilizing effective amount and is selected from 1,2-propylene oxide and 1, the epoxide of 2-butylene oxide ring.
25, a kind of azeotropic of stabilization or Azeotrope-like compositions, it comprises the dichlorotrifluoroethane, 1 of significant quantity, 1-two chloro-1-fluoroethanes and methyl alcohol and/or ethanol add Nitromethane 99Min., the 4-methoxyphenol of stabilizing effective amount and are selected from Diisopropylamine and the amine of lupetidine.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US48927590A | 1990-03-05 | 1990-03-05 | |
| US49296590A | 1990-03-13 | 1990-03-13 | |
| US492,965 | 1990-03-13 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1054791A true CN1054791A (en) | 1991-09-25 |
Family
ID=27049658
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 91101476 Pending CN1054791A (en) | 1990-03-05 | 1991-03-13 | Dichlorotrifluoroethane, 1,1-two chloro-1-fluoroethanes and methyl alcohol and/or alcoholic acid stabilization azeotropic, azeotropic or Azeotrope-like compositions |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1054791A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100532527C (en) * | 2006-05-24 | 2009-08-26 | 西安航天动力实验技术研究所 | Non aqueous environment-friendly type cleaning agent and preparing process thereof |
| CN104955917A (en) * | 2013-01-25 | 2015-09-30 | 特灵国际有限公司 | Refrigerant additives and compositions |
-
1991
- 1991-03-13 CN CN 91101476 patent/CN1054791A/en active Pending
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100532527C (en) * | 2006-05-24 | 2009-08-26 | 西安航天动力实验技术研究所 | Non aqueous environment-friendly type cleaning agent and preparing process thereof |
| CN104955917A (en) * | 2013-01-25 | 2015-09-30 | 特灵国际有限公司 | Refrigerant additives and compositions |
| US10208234B2 (en) | 2013-01-25 | 2019-02-19 | Trane International Inc. | Refrigerant additives and compositions |
| US10988651B2 (en) | 2013-01-25 | 2021-04-27 | Trane International Inc. | Refrigerant additives and compositions |
| US11976234B2 (en) | 2013-01-25 | 2024-05-07 | Trane International Inc. | Refrigerant additives and compositions |
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