CN1045818A - 2,2-two chloro-1,1, the Azeotrope compositions of 1-Halothane and methyl alcohol - Google Patents
2,2-two chloro-1,1, the Azeotrope compositions of 1-Halothane and methyl alcohol Download PDFInfo
- Publication number
- CN1045818A CN1045818A CN90101578A CN90101578A CN1045818A CN 1045818 A CN1045818 A CN 1045818A CN 90101578 A CN90101578 A CN 90101578A CN 90101578 A CN90101578 A CN 90101578A CN 1045818 A CN1045818 A CN 1045818A
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- CN
- China
- Prior art keywords
- azeotrope
- azeotropic
- methyl alcohol
- compositions
- weight
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
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Classifications
-
- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23G—CLEANING OR DE-GREASING OF METALLIC MATERIAL BY CHEMICAL METHODS OTHER THAN ELECTROLYSIS
- C23G5/00—Cleaning or de-greasing metallic material by other methods; Apparatus for cleaning or de-greasing metallic material with organic solvents
- C23G5/02—Cleaning or de-greasing metallic material by other methods; Apparatus for cleaning or de-greasing metallic material with organic solvents using organic solvents
- C23G5/028—Cleaning or de-greasing metallic material by other methods; Apparatus for cleaning or de-greasing metallic material with organic solvents using organic solvents containing halogenated hydrocarbons
- C23G5/02809—Cleaning or de-greasing metallic material by other methods; Apparatus for cleaning or de-greasing metallic material with organic solvents using organic solvents containing halogenated hydrocarbons containing chlorine and fluorine
- C23G5/02825—Cleaning or de-greasing metallic material by other methods; Apparatus for cleaning or de-greasing metallic material with organic solvents using organic solvents containing halogenated hydrocarbons containing chlorine and fluorine containing hydrogen
- C23G5/02829—Ethanes
- C23G5/02838—C2HCl2F3
-
- C—CHEMISTRY; METALLURGY
- C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
- C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
- C11D7/00—Compositions of detergents based essentially on non-surface-active compounds
- C11D7/50—Solvents
- C11D7/5036—Azeotropic mixtures containing halogenated solvents
- C11D7/5068—Mixtures of halogenated and non-halogenated solvents
- C11D7/5077—Mixtures of only oxygen-containing solvents
- C11D7/5081—Mixtures of only oxygen-containing solvents the oxygen-containing solvents being alcohols only
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- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Organic Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Metallurgy (AREA)
- Mechanical Engineering (AREA)
- Materials Engineering (AREA)
- General Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Wood Science & Technology (AREA)
- Detergent Compositions (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
- Manufacturing Of Printed Wiring (AREA)
- Cleaning And De-Greasing Of Metallic Materials By Chemical Methods (AREA)
Abstract
2,2-two chloro-1,1, the azeotropic or the Azeotrope-like compositions of 1-Halothane (HCFC-123) and methyl alcohol, this azeotropic mixture can be used in the solvent cleaning application.
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 even more important.The existing commercial run of soldering of electronic components generally comprises on circuit card, and with the entire circuit face of flux coating circuit card, this that makes circuit card then is coated with coverlay and passes the preheater top, again by the fused scolder.Solder flux has cleaned the metal parts of conduction, impels scolder to merge.Major part is rosin in the composition of solder flux commonly used, can use separately or share with the additive of an activation such as amine hydrochlorate or oxalic acid derivative.
After the welding, because a part of rosin generation thermal destruction usually will be removed remaining solder flux and flux residue from circuit card with hot organic solvent.Requirement to this kind solvent is very strict.Remove flux solvents and should have following properties: boiling point is low, nonflammable, toxicity is low, dissolving power is high, could remove deflux and flux residue like this and does not damage the substrate that is cleaned.
Though boiling point, inflammableness and dissolving power characteristic often can be by regulate different solvent together, formed mixture usually can not be satisfactory because they in use can be in boiling process fractionation and reach the degree of not expecting.The component that volatility is bigger in these mixtures is at first evaporated, and causes the composition of ebullient mixture and boiling point all constantly to change.This fractionation is undesirable, because it can cause the change of solubility property.Also be because this fractionation, in fact people can not recovery and reuse have the solvent compositions of original composition.
On the other hand, azeotropic mixture is emitted with this mixture and is formed identical steam.Because without any becoming branch's preferential evaporation, so azeotropic mixture all keeps azeotropic in whole still-process.In the vapour degreasion operation, this azeotropic characteristics of azeotropic mixture need, because solvent vapour can condensation become the mixture with its original composition, are used for final cleaning operation then.Like this, steam deflux and degreasing system have just played the effect of still kettle.Unless solvent compositions has the constant boiling point, promptly be a kind of one matter, a kind of azeotrope or class azeotropic, otherwise will taking place, the fractionation pass cause undesirable solvent to distribute, this can be to the security and the effectiveness generation harmful effect of cleaning operation.
Regrettably, as what have realized that, can not foretell the formation of azeotrope in this area.This true new Azeotrope compositions work that makes searching can be applicable to this field is obviously complicated.Yet people are still constantly making great efforts to find to have new azeotrope or the Azeotrope-like compositions that improved dissolution characteristics especially has bigger dissolving power suitability in this field.
The present invention has found a kind of azeotropic or Azeotrope-like compositions, and it contains significant quantity 2,2-two chloro-1,1,1-Halothane and methanol mixture.More particularly, these azeotropic or Azeotrope-like compositions contain the 97-99%(weight of having an appointment) 2,2-two chloro-1,1,1-Halothane and about 1-3%(weight) methyl alcohol.
The invention provides a kind of nonflammable Azeotrope compositions that solvent cleaning is used that is suitable for very much.
Composition of the present invention contains 2 of significant quantity, 2-two chloro-1,1,1-Halothane (CHCl
2CF
3, boiling point=27.9 ℃) with methyl alcohol (CH
3OH, boiling point=65.0 ℃) mixture is to form azeotropic or Azeotrope-like mixtures.Fluorochemical wherein is also referred to as HCFC-123 in the conventional nomenclature in chlorofluorocarbon field.
Azeotropic or Azeotrope-like compositions are meant the azeotropic liquid mixture of two or more material, the behavior of this mixture is as one matter, the steam that is produced by evaporation of the part of liquid or distillation has with liquid is essentially identical to be formed, and this mixture is formed constant substantially when distillation.With azeotropic or class azeotropic is the azeotropic composition of feature, mixes thing with the non-azeotropic of same substance and compares, and has an or minimum boiling point the highest.
With regard to purpose of the present invention, significant quantity is defined as every kind of component in the mixture of the present invention causes forming azeotropic of the present invention or Azeotrope-like compositions after mixing amount.This definition has comprised the amount of every kind of component, and this tittle can be different along with the difference of the pressure that puts on composition, as long as azeotropic or Azeotrope-like compositions exist under different pressure, but boiling point might be different.Therefore, significant quantity comprises the weight percent when every kind of component in the present composition forms azeotropic or Azeotrope-like compositions under being different from atmospheric pressure.When the pressure that puts on these compositions was adjusted to normal atmosphere and is 760mmHg, these compositions contained azeotrope of the present invention and will seethe with excitement under the atmospheric boil of actual azeotrope as herein described.
In fact, according to selected condition, might discern the constant boiling mixture that may occur with multiple illusion according to any in following several the principles:
* composition may be defined as A, B, C, (and D ...) azeotrope, because " azeotrope " this specific term, not only have determinacy and restricted simultaneously, and require A, B, C, (and the D of significant quantity ...) composition of matter that forms this uniqueness is constant boiling mixture.
* this area professional knows, and under different pressure, variation to a certain degree takes place to I haven't seen you for ages the composition of given azeotrope, and the change of pressure also changes boiling temperature to a certain extent to I haven't seen you for ages.Therefore, A, B, C(and D ...) azeotrope represented a kind of relation of unique types, but its composition is variable, this depends on temperature and/or pressure.Therefore, usually form and limit azeotrope with compositing range rather than fixed.
* composition may be defined as A, B, C(and D ...) specified weight per-cent relation or molar percentage relation, to recognize simultaneously, these concrete numerical value have only been pointed out a kind of such particular kind of relationship, in fact, in fact given azeotrope is existed by A, B, C(and D ...) a series of such relation of embodying, this relation changes because of the influence of pressure.
* A, B, C(and D ...) azeotrope can characterize like this, promptly composition being defined as with the boiling point under the setting pressure is the azeotrope of feature, this limits the scope of the invention with regard to having provided identification mark and not had to form with concrete numerical value inadequately, this numerical value is formed the restriction that is subjected to existing analytical instrument, and can only be the same with analytical instrument accurate.
About 97-99.5%(weight) HCFC-123 and about 0.5-3%(weight) binary mixture of methyl alcohol is called as azeotrope or Azeotrope-like, because the interior mixture of this scope has substantially invariable boiling point under constant voltage.Because substantially constant boiling, fractionation can not take place in these mixtures to a great extent when evaporation.After the evaporation, has only very little difference between the composition of steam and initial liquid phase.This difference is so little, to such an extent as to the composition of steam and liquid phase is considered to essentially identical.Therefore, any mixture in this scope all has the peculiar character of real binary azeotrope.
Now in the precision of fractionating process, established by about 98.8%(weight) HCFC-123 and fair 1.2%(weight) binary composition of methyl alcohol is real binary azeotrope, and be preferred azeotrope, it is being in about 28 ℃ of boilings under the normal atmosphere substantially.
HCFC-123 of the present invention can contain a spot of HCFC-123a.
Azeotrope of the present invention is 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.
Azeotrope of the present invention can prepare with any method easily, comprises each component of mixing or merging aequum.Preferable methods is each composition of weighing aequum, then they is incorporated in the proper container.
Example 1
The HCFC-123 sample is placed the glass flask that is equipped with reflux exchanger and makes its boiling.Small amount of methanol is added to the backflow mixture that forms the continuous variation of composition among the ebullient HCFC-123 in cumulative mode.The boiling temperature of finding this mixture descends earlier when just beginning to add methyl alcohol, then the methanol concentration in mixture surpasses 1.2%(weight) time raises, and consisting of 98.8%(weight) HCFC-123 and 1.2%(weight) formed 27.6 ℃ minimum boiling point during methyl alcohol.The data of this still-process are shown in table 1.
The existence of minimum boiling point shows that HCFC-123 and methyl alcohol have formed the azeotrope with above-mentioned composition.
Example 2
Preparation contains 98.8%(weight in suitable containers) HCFC-123 and 1.2%(weight) solution of methyl alcohol, and thorough mixing.This solution distills with the glass water distilling apparatus that is equipped with claisen-Wei Geluo distillation plant.Shown in the data of table 2, in most of still-process, remain on uncorrected 27.5 ℃ mixed some temperature substantially constant of this solution.
The azeotropic characteristic of this solution is consistent with the distillation feature of azeotropic or Azeotrope-like compositions.
Example 3
Preparation contains 50.0%(weight in suitable containers) HCFC-123 and 50.0%(weight) solution and the thorough mixing of methyl alcohol.This solution distills with the glass water distilling apparatus that is equipped with claisen-Wei Geluo distillation plant.
Because this solution is rich in methyl alcohol,, after exhausting, HCFC-123 steams excessive methyl alcohol then again so estimate when distillation, to steam the HCFC-123/ methanol azeotrope earlier.The gas chromatographic analysis that the distillate that merges in cumulative mode is done has confirmed that minimum boiling point just contains 1.0-1.8%(weight in the composition of distillate) methyl alcohol and 99.0-98.2%(weight) HCFC-123, proved conclusively the existence and the composition of azeotrope.Data are listed in table 3.
Table 1
The interpolation distillation of HCFC-123 and methyl alcohol
Boiling point after the correction
Wt.%HCHF-123 Wt.% methanol temperature ℃
100.0 0 27.90
99.8 0.2 27.87
99.7 0.3 27.78
99.5 0.5 27.72
99.4 0.6 27.69
99.2 0.8 27.64
99.1 0.9 27.60
98.8 1.2 27.57
98.6 1.4 27.58
98.5 1.5 27.62
98.3 1.7 27.62
98.2 1.8 27.63
98.0 2.0 27.62
97.7 2.3 27.69
97.1 2.9 27.75
96.3 3.7 27.85
95.3 4.7 27.92
92.8 7.2 28.06
Table 2
The fractionation of HCFC-123/ methanol azeotrope
Envrionment conditions: air pressure-760.5mmHg
Temperature-23.4 ℃
Distillate volume (%) boiling point (℃)
0 21.8
1 27.0
4 27.3
7 27.3
10 27.3
13 27.3
16 27.4
18 27.4
23 27.4
27 27.5
33 27.5
37 27.5
42 27.5
46 27.5
50 27.5
55 27.5
60 27.5
64 27.5
70 27.5
73 27.5
78 27.5
80 27.5
84 27.5
87 27.5
90 27.5
92 27.5
96 27.5
Table 3
The fractionation of HCFC-123 and methanol mixture (weight ratio is 1: 1)
Envrionment conditions: air pressure-762.9mmHg
Temperature-22.7 ℃
Claims (7)
1, a kind of azeotropic or Azeotrope-like compositions is characterized in that, it contains 2 of significant quantity, 2-two chloro-1,1,1-Halothane and methyl alcohol.
2, the azeotropic of claim 1 or Azeotrope-like compositions is characterized in that, it consists of about 97-99.5%(weight) 2,2-two chloro-1,1,1-Halothane and about 0.5-3%(weight) methyl alcohol.
3, the azeotropic of claim 2 or Azeotrope-like compositions is characterized in that, it consists of about 98.8%(weight) 2,2-two chloro-1,1,1-Halothane and about 1.2%(weight) methyl alcohol.
4, the azeotropic of claim 2 or Azeotrope-like compositions is characterized in that, said composition is being about 28 ℃ for the boiling point under the normal atmosphere substantially.
5, a kind of method of cleaning solid surface is characterized in that, handles described surface with the azeotropic or the class azeotropic combination of claim 1.
6, the method for claim 5 is characterized in that, described solid surface is for polluting the printed circuit board (PCB) that solder flux and flux residue are arranged.
7, the method for claim 5 is characterized in that, described solid surface is a metal.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US32771889A | 1989-03-23 | 1989-03-23 | |
| US327,718 | 1989-03-23 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1045818A true CN1045818A (en) | 1990-10-03 |
Family
ID=23277741
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN90101578A Pending CN1045818A (en) | 1989-03-23 | 1990-03-23 | 2,2-two chloro-1,1, the Azeotrope compositions of 1-Halothane and methyl alcohol |
Country Status (9)
| Country | Link |
|---|---|
| EP (1) | EP0389133B1 (en) |
| JP (1) | JPH02292400A (en) |
| KR (1) | KR900014642A (en) |
| CN (1) | CN1045818A (en) |
| AT (1) | ATE88766T1 (en) |
| AU (1) | AU632016B2 (en) |
| BR (1) | BR9001354A (en) |
| CA (1) | CA2012445A1 (en) |
| DE (1) | DE69001455D1 (en) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5066417A (en) * | 1989-07-20 | 1991-11-19 | E. I. Du Pont De Nemours And Company | Binary azeotropic compositions of 2,2-dichloro-1,2-difluoroethane with methanol, ethanol, or trans-1,2-dichloroethylene |
| US4961869A (en) * | 1989-08-03 | 1990-10-09 | E. I. Du Pont De Nemours And Company | Ternary azeotropic compositions of 2,3-dichloro-1,1,1,3,3-pentafluoropropane with trans-1,2-dichloroethylene and methanol |
| US5026497A (en) * | 1990-03-12 | 1991-06-25 | E. I. Du Pont De Nemours And Company | Azeotropic compositions of perfluoro-1,2-dimethylcyclobutane with methanol and 1,1-dichloro-1-fluoroethane or dichlorotrifluoroethane |
| BE1005163A3 (en) * | 1991-08-01 | 1993-05-11 | Solvay | Composition containing fluorinated ether and use thereof. |
| BE1005181A3 (en) * | 1991-08-19 | 1993-05-18 | Solvay | Composition containing a fluorinated ether and use thereof. |
| CN104294305B (en) * | 2014-09-30 | 2016-06-29 | 江苏中容铜业有限公司 | A kind of can the copper material detergent of rapid preparing |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4070299A (en) * | 1975-08-29 | 1978-01-24 | Phillips Petroleum Company | Azeotropic compositions |
| US4816176A (en) * | 1988-04-04 | 1989-03-28 | Allied-Signal Inc. | Azeotrope-like compositions of dichlorotrifluoroethane, methanol and nitromethane |
| JPH03503541A (en) * | 1988-04-04 | 1991-08-08 | アライド‐シグナル・インコーポレーテッド | Azeotrope-like composition of dichlorotrifluoroethane, methanol and nitromethane |
| US4812256A (en) * | 1988-04-20 | 1989-03-14 | E. I. Du Pont De Nemours And Company | Azeotropic compositions of 1,1-difluoro-1,2,2-trichloroethane and methanol, ethanol, isopropanol or n-propanol |
-
1990
- 1990-03-02 AT AT90302267T patent/ATE88766T1/en not_active IP Right Cessation
- 1990-03-02 DE DE9090302267T patent/DE69001455D1/en not_active Expired - Lifetime
- 1990-03-02 EP EP90302267A patent/EP0389133B1/en not_active Expired - Lifetime
- 1990-03-16 CA CA002012445A patent/CA2012445A1/en not_active Abandoned
- 1990-03-22 BR BR909001354A patent/BR9001354A/en not_active Application Discontinuation
- 1990-03-22 AU AU52123/90A patent/AU632016B2/en not_active Ceased
- 1990-03-22 KR KR1019900003901A patent/KR900014642A/en not_active Application Discontinuation
- 1990-03-23 JP JP2075364A patent/JPH02292400A/en active Pending
- 1990-03-23 CN CN90101578A patent/CN1045818A/en active Pending
Also Published As
| Publication number | Publication date |
|---|---|
| BR9001354A (en) | 1991-04-02 |
| KR900014642A (en) | 1990-10-24 |
| EP0389133B1 (en) | 1993-04-28 |
| AU5212390A (en) | 1990-09-27 |
| EP0389133A1 (en) | 1990-09-26 |
| ATE88766T1 (en) | 1993-05-15 |
| JPH02292400A (en) | 1990-12-03 |
| AU632016B2 (en) | 1992-12-10 |
| DE69001455D1 (en) | 1993-06-03 |
| CA2012445A1 (en) | 1990-09-23 |
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| SE01 | Entry into force of request for substantive examination | ||
| C01 | Deemed withdrawal of patent application (patent law 1993) | ||
| WD01 | Invention patent application deemed withdrawn after publication |