Deprecated: The each() function is deprecated. This message will be suppressed on further calls in /home/zhenxiangba/zhenxiangba.com/public_html/phproxy-improved-master/index.php on line 456
JP3637382B2 - Fluorinated hydrocarbon azeotropic composition - Google Patents
[go: Go Back, main page]

JP3637382B2 - Fluorinated hydrocarbon azeotropic composition - Google Patents

Fluorinated hydrocarbon azeotropic composition Download PDF

Info

Publication number
JP3637382B2
JP3637382B2 JP8802393A JP8802393A JP3637382B2 JP 3637382 B2 JP3637382 B2 JP 3637382B2 JP 8802393 A JP8802393 A JP 8802393A JP 8802393 A JP8802393 A JP 8802393A JP 3637382 B2 JP3637382 B2 JP 3637382B2
Authority
JP
Japan
Prior art keywords
composition
fluorinated hydrocarbon
ethanol
azeotropic composition
octafluorocyclopentane
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.)
Expired - Lifetime
Application number
JP8802393A
Other languages
Japanese (ja)
Other versions
JPH06271488A (en
Inventor
章 関屋
俊郎 山田
康裕 光田
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
National Institute of Advanced Industrial Science and Technology AIST
Original Assignee
National Institute of Advanced Industrial Science and Technology AIST
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by National Institute of Advanced Industrial Science and Technology AIST filed Critical National Institute of Advanced Industrial Science and Technology AIST
Priority to JP8802393A priority Critical patent/JP3637382B2/en
Publication of JPH06271488A publication Critical patent/JPH06271488A/en
Application granted granted Critical
Publication of JP3637382B2 publication Critical patent/JP3637382B2/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • CCHEMISTRY; METALLURGY
    • C11ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
    • C11DDETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
    • C11D7/00Compositions of detergents based essentially on non-surface-active compounds
    • C11D7/50Solvents
    • C11D7/5036Azeotropic mixtures containing halogenated solvents
    • C11D7/5068Mixtures of halogenated and non-halogenated solvents
    • C11D7/5077Mixtures of only oxygen-containing solvents
    • C11D7/5081Mixtures of only oxygen-containing solvents the oxygen-containing solvents being alcohols only

Landscapes

  • Chemical & Material Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Wood Science & Technology (AREA)
  • Organic Chemistry (AREA)
  • Extraction Or Liquid Replacement (AREA)
  • Detergent Compositions (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)

Description

【0001】
【産業上の利用分野】
本発明はフッ素化炭化水素系共沸組成物および共沸様組成物に関する。
【0002】
【従来の技術】
従来より、トリフルオロトリクロロエタンのような塩素を含むフロン系炭化水素や1,1,1−トリクロロエタンのような塩素系炭化水素などはプラスチック、ゴム製品、電子部品などの洗浄用溶剤として広く用いられている。
しかし、かかる塩素を含むフロン系炭化水素や塩素系炭化水素は塩素原子を有するためオゾン層を破壊するという重大な欠点が指摘され、世界的規模でその生産と使用を停止することが決められている。
このような状況下、従来の塩素を含むフロン系炭化水素や塩素系炭化水素に代わり、オゾン層を破壊しない代替品の開発が活発に行われている。
【0003】
【発明が解決しようとする課題】
本発明は、塩素を含むフロン系炭化水素や塩素系炭化水素の洗浄性や低毒性などの優れた性質を損なうことなく、オゾン層破壊の心配がない新規な組成物を提供することを目的としている。
【0004】
本発明は前記の課題を解決するものとして、1,2,3,3,4,4,5,5−オクタフルオロシクロペンタン及びエタノールからなることを特徴とする弗素化炭化水素系共沸組成物を提供する。
【0005】
本発明の組成物は1,2,3,3,4,4,5,5−オクタフルオロシクロペンタン及びエタノールからなり、好ましくは1,2,3,3,4,4,5,5−オクタフルオロシクロペンタン84.2重量%及びエタノール15.8重量%からなる共沸組成物である。このように本発明の組成物は共沸組成が存在するため、リサイクル使用しても組成の変動がない。また本発明の共沸組成物の沸点は常圧で72.1℃である。該沸点は代表的洗浄剤でオゾン層を破壊するため生産等が中止されるトリフルオロトリクロロエタンの沸点に近いことから、代替品として使用できる特色がある。
【0006】
1,2,3,3,4,4,5,5−オクタフルオロシクロペンタンは既知の物質であり、例えば、オクタフルオロシクロペンテンをパラジウム系触媒の存在下に水素化することにより容易に得ることができる。
【0007】
本発明の組成物は必要に応じて安定化剤や希釈剤などを添加することができる。安定化剤としては、例えば、ニトロメタン、ニトロエタンなどの脂肪族ニトロ化合物;3−メチル−1−ペンチン−3−オールなどのアセチレンアルコール類;グリシドール、メチルグリシジルエーテル、アクリルグリシジルエーテルなどのエポキシド類;ジメトキシメタン、1,4−ジオキサンなどのエーテル類;ヘキセン、ヘプテン、シクロペンテン、シクロヘキセンなどの不飽和炭化水素類;アリルアルコール、1−ブテン−3−オールなどの不飽和アルコール;アクリル酸メチル、アクリル酸エチルなどのアクリル酸エステル類;ジエチルアミン、トリエチルアミン、ブチルアミンなどのアミン類;フェノール類などが挙げられる。
希釈剤としては、例えばシクロペンタン、シクロヘキサン、ヘプタン、ヘキサンなどの飽和炭化水素類が挙げられる。
【0008】
本発明の組成物は塩素原子を含まないためオゾン層破壊の心配がない。
かかる本発明の組成物は、従来の塩素を含むフロン系炭化水素や塩素系炭化水素などと同程度の洗浄作用を有するため、プラスチック、ゴム製品、電子部品などのフラックスや油脂の洗浄に用いることが利用できる。洗浄方法は浸漬法、スプレー法、蒸気洗浄法、あるいはこれらの組合せなどの従来から用いられている方法が採用される。この場合、加熱、超音波照射などを行うこともできる。
【0009】
また、本発明の組成物は優れた水切り乾燥作用も有するので、水切り乾燥用溶剤として用いることができる。水切り乾燥方法も特に限定されず、例えば、浸漬法、蒸気乾燥法、スプレー法など、あるいはこれらの組合せなどの従来から用いられている方法が採用される。
【0010】
【実施例】
以下に実施例を挙げて本発明をさらに具体的に説明する。なお、実施例及び比較例中の部及び%は特に断りのないかぎり重量基準である。
【0011】
参考例1
1,2,3,3,4,4,5,5−オクタフルオロシクロペンタンの合成
1リットルのステンレス製反応器にオクタフルオロシクロペンテン600グラムと5%パラジウムカーボン触媒12グラムを仕込み、50℃で水素圧6Kg/cm2下にて水素化を行った。
水素の吸収がなくなったところで反応を終了し、反応混合物から触媒及び副生する弗化水素を除去し、単蒸留を行ったところ、590グラムの反応生成物を得た。
次に、反応生成物を理論段数55段の蒸留塔を用い、常圧にて蒸留を行ったところ、純度99%の1,2,3,3,4,4,5,5−オクタフルオロシクロペンタン(沸点79℃)450グラムを得た。
【0012】
実施例1
1,2,3,3,4,4,5,5−オクタフルオロシクロペンタン416グラム及びエタノール92グラムを混合し、理論段数55段の蒸留塔を用い、常圧にて蒸留を行ったところ、沸点72.1℃の共沸留分310グラムを得た。このものの組成をガスクロマトグラフィーで分析したところ、1,2,3,3,4,4,5,5−オクタフルオロシクロペンタン84.2重量%、エタノール15.8重量%であった。
【0013】
実施例2
実施例1の組成物(1,2,3,3,4,4,5,5−オクタフルオロシクロペンタン84.2重量%及びエタノール15.8重量%)を用いてフラックスの洗浄試験を行った。
ポリイミド樹脂製のプリント基板(30mm×30mm×0.2mm厚)全面にフラックス(千住金属社製PO−F−1010S)を塗布し、約250℃で2分間焼付けを行った。これを試験片として実施例1の組成物100ミリリットル中に3分間浸漬した。フラックスの除去度合を肉眼で観察したところ、完全に除去されていた。
【0014】
実施例3
ポリイミド樹脂製のプリント基板に代えて、ガラスエポキシ樹脂のプリント基板(50mm×25mm×1.8mm厚)を用いること以外は実施例2と同様に試験を行ったところ、フラックスは完全に除去されていた。
【0015】
実施例4
実施例1の組成物(1,2,3,3,4,4,5,5−オクタフルオロシクロペンタン84.2重量%及びエタノール15.8重量%)を用いて水切り乾燥試験を行った。
カバーガラス(15mm×15mm)を予めよく脱脂洗浄し、これを試験片として純水に浸漬し、次いで実施例1の組成物100ミリリットル中に30秒間浸漬した。試験片を引き上げ、常温にて1分間放置し、残存した組成物を蒸発させた。
次に、10グラムのエタノール(水分570ppm)に入れ、エタノールの水分増加量をカールフィッシャー水分計により測定したところ50ppmであった。
常温下に放置したカバーガラスを用いてブランクの水分増加量を測定したところ50ppmであった。
また、純水に浸漬したのみで、実施例1の組成物に浸漬しないものの水分増加量は3200ppmであった。
以上より、実施例1の組成物を用いてほぼ完全に水切り乾燥が行えることがわかった。
[0001]
[Industrial application fields]
The present invention relates to fluorinated hydrocarbon-based azeotrope compositions and azeotrope-like compositions.
[0002]
[Prior art]
Conventionally, chlorofluorocarbons containing chlorine such as trifluorotrichloroethane and chlorohydrocarbons such as 1,1,1-trichloroethane have been widely used as cleaning solvents for plastics, rubber products, electronic parts and the like. Yes.
However, chlorofluorocarbons and chlorinated hydrocarbons containing such chlorine have chlorine atoms, so a serious disadvantage of destroying the ozone layer has been pointed out, and it has been decided to stop production and use on a global scale. Yes.
Under such circumstances, alternatives that do not destroy the ozone layer are being actively developed in place of conventional chlorofluorocarbons and chlorinated hydrocarbons containing chlorine.
[0003]
[Problems to be solved by the invention]
It is an object of the present invention to provide a novel composition that does not cause ozone layer destruction without impairing excellent properties such as detergency and low toxicity of chlorofluorocarbons and chlorohydrocarbons containing chlorine. Yes.
[0004]
In order to solve the above-mentioned problems, the present invention provides a fluorinated hydrocarbon azeotropic composition comprising 1,2,3,3,4,4,5,5-octafluorocyclopentane and ethanol . to provide.
[0005]
The compositions of the present invention consists of 1,2,3,3,4,4,5,5- octafluoro cyclopentadiene down及 beauty ethanol, is good Mashiku 1,2,3,3,4,4, An azeotropic composition comprising 84.2% by weight of 5,5-octafluorocyclopentane and 15.8% by weight of ethanol. As described above, since the composition of the present invention has an azeotropic composition, the composition does not vary even when it is recycled. The azeotropic composition of the present invention has a boiling point of 72.1 ° C. at normal pressure. Since the boiling point is close to the boiling point of trifluorotrichloroethane, which is a typical detergent and destroys the ozone layer, production is stopped, there is a feature that can be used as an alternative.
[0006]
1,2,3,3,4,4,5,5-octafluorocyclopentane is a known substance and can be easily obtained, for example, by hydrogenating octafluorocyclopentene in the presence of a palladium-based catalyst. it can.
[0007]
A stabilizer, a diluent, etc. can be added to the composition of this invention as needed. Examples of the stabilizer include aliphatic nitro compounds such as nitromethane and nitroethane; acetylene alcohols such as 3-methyl-1-pentyn-3-ol; epoxides such as glycidol, methyl glycidyl ether, and acrylic glycidyl ether; dimethoxy Ethers such as methane and 1,4-dioxane; unsaturated hydrocarbons such as hexene, heptene, cyclopentene and cyclohexene; unsaturated alcohols such as allyl alcohol and 1-buten-3-ol; methyl acrylate and ethyl acrylate Acrylic esters such as: amines such as diethylamine, triethylamine and butylamine; phenols and the like.
Examples of the diluent include saturated hydrocarbons such as cyclopentane, cyclohexane, heptane, and hexane.
[0008]
Since the composition of the present invention does not contain chlorine atoms, there is no fear of ozone layer destruction.
Such a composition of the present invention has a cleaning action comparable to that of conventional chlorofluorocarbons and chlorinated hydrocarbons containing chlorine, and therefore is used for cleaning fluxes and fats and oils of plastics, rubber products, electronic parts and the like. Is available. As the cleaning method, a conventionally used method such as an immersion method, a spray method, a steam cleaning method, or a combination thereof is employed. In this case, heating, ultrasonic irradiation, etc. can also be performed.
[0009]
Moreover, since the composition of this invention also has the outstanding draining drying effect | action, it can be used as a solvent for draining drying. The draining and drying method is not particularly limited, and a conventionally used method such as an immersion method, a steam drying method, a spray method, or a combination thereof is employed.
[0010]
【Example】
The present invention will be described more specifically with reference to the following examples. In the examples and comparative examples, parts and% are based on weight unless otherwise specified.
[0011]
Reference example 1
Synthesis of 1,2,3,3,4,4,5,5-octafluorocyclopentane A 1 liter stainless steel reactor was charged with 600 grams of octafluorocyclopentene and 12 grams of 5% palladium carbon catalyst and hydrogenated at 50 ° C. Hydrogenation was performed under a pressure of 6 Kg / cm 2 .
When the absorption of hydrogen ceased, the reaction was terminated, the catalyst and by-product hydrogen fluoride were removed from the reaction mixture, and simple distillation was performed to obtain 590 grams of a reaction product.
Next, the reaction product was distilled at atmospheric pressure using a distillation column having a theoretical plate number of 55. As a result, 1,2,3,3,4,4,5,5-octafluorocyclohexane having a purity of 99% was obtained. 450 grams of pentane (boiling point 79 ° C.) was obtained.
[0012]
Example 1
When 416 grams of 1,2,3,3,4,4,5,5-octafluorocyclopentane and 92 grams of ethanol were mixed and distilled at a normal pressure using a distillation column having 55 theoretical plates, 310 grams of an azeotropic fraction having a boiling point of 72.1 ° C. was obtained. The composition of this product was analyzed by gas chromatography.
[0013]
Example 2
A flux cleaning test was conducted using the composition of Example 1 (1,2,3,3,4,4,5,5-octafluorocyclopentane 84.2 wt% and ethanol 15.8 wt%). .
A flux (PO-F-1010S manufactured by Senju Metal Co., Ltd.) was applied to the entire surface of a printed circuit board made of polyimide resin (30 mm × 30 mm × 0.2 mm thick), and baked at about 250 ° C. for 2 minutes. This was immersed as a test piece in 100 ml of the composition of Example 1 for 3 minutes. When the degree of flux removal was observed with the naked eye, it was completely removed.
[0014]
Example 3
The test was conducted in the same manner as in Example 2 except that a glass epoxy resin printed board (50 mm × 25 mm × 1.8 mm thickness) was used instead of the polyimide resin printed board, and the flux was completely removed. It was.
[0015]
Example 4
A drainage drying test was conducted using the composition of Example 1 (1,2,3,3,4,4,5,5-octafluorocyclopentane 84.2% by weight and ethanol 15.8% by weight).
The cover glass (15 mm × 15 mm) was thoroughly degreased and washed in advance, immersed in pure water as a test piece, and then immersed in 100 ml of the composition of Example 1 for 30 seconds. The test piece was pulled up and left at room temperature for 1 minute to evaporate the remaining composition.
Next, it was put into 10 grams of ethanol (moisture of 570 ppm), and the increase in water content of ethanol was measured with a Karl Fischer moisture meter and found to be 50 ppm.
The amount of water increase in the blank was measured using a cover glass left at room temperature and found to be 50 ppm.
Moreover, the water increase amount of what was not immersed in the composition of Example 1 only by being immersed in the pure water was 3200 ppm.
As mentioned above, it turned out that draining and drying can be performed almost completely using the composition of Example 1.

Claims (4)

1,2,3,3,4,4,5,5−オクタフルオロシクロペンタン及びエタノールからなることを特徴とする弗素化炭化水素系共沸組成物。A fluorinated hydrocarbon azeotrope comprising 1,2,3,3,4,4,5,5-octafluorocyclopentane and ethanol. 1,2,3,3,4,4,5,5−オクタフルオロシクロペンタン84.2重量%及びエタノール15.8重量%からなることを特徴とする請求項1記載の弗素化炭化水素系共沸組成物。2. The fluorinated hydrocarbon copolymer according to claim 1, comprising 84.2% by weight of 1,2,3,3,4,4,5,5-octafluorocyclopentane and 15.8% by weight of ethanol. Boiling composition. 請求項1の組成物からなることを特徴とする洗浄用溶剤。A cleaning solvent comprising the composition according to claim 1 . 請求項1の組成物からなることを特徴とする水切り乾燥用溶剤。A solvent for draining and drying comprising the composition of claim 1 .
JP8802393A 1993-03-23 1993-03-23 Fluorinated hydrocarbon azeotropic composition Expired - Lifetime JP3637382B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP8802393A JP3637382B2 (en) 1993-03-23 1993-03-23 Fluorinated hydrocarbon azeotropic composition

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP8802393A JP3637382B2 (en) 1993-03-23 1993-03-23 Fluorinated hydrocarbon azeotropic composition

Publications (2)

Publication Number Publication Date
JPH06271488A JPH06271488A (en) 1994-09-27
JP3637382B2 true JP3637382B2 (en) 2005-04-13

Family

ID=13931238

Family Applications (1)

Application Number Title Priority Date Filing Date
JP8802393A Expired - Lifetime JP3637382B2 (en) 1993-03-23 1993-03-23 Fluorinated hydrocarbon azeotropic composition

Country Status (1)

Country Link
JP (1) JP3637382B2 (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100354301B1 (en) * 1993-08-16 2002-12-31 다이낑 고오교 가부시키가이샤 Cleaning solvent composition and a method for cleaning or drying articles
WO2008081804A1 (en) * 2006-12-28 2008-07-10 National Institute Of Advanced Industrial Science And Technology Cleaning agent containing fluorinated cyclic unsaturated hydrocarbon and cleaning method

Also Published As

Publication number Publication date
JPH06271488A (en) 1994-09-27

Similar Documents

Publication Publication Date Title
US5773403A (en) Cleaning and drying solvent
US6403846B1 (en) Fluorinated, saturated hydrocarbons
EP0576687A1 (en) Cleaning and drying solvent
US5773404A (en) Azeotropic composition
JP3637381B2 (en) Fluorinated hydrocarbon azeotropic composition
JP3637382B2 (en) Fluorinated hydrocarbon azeotropic composition
JP3637383B2 (en) Fluorinated hydrocarbon azeotropic composition
JP3637384B2 (en) Fluorinated hydrocarbon azeotropic composition
EP0671464A1 (en) Solvent composition comprising mixture of polyfluoroalkane and lower alcohol
JPH0425598A (en) cleaning solvent
US4973421A (en) Azeotropic solvent composition
JPH06200294A (en) Azeotropic and azeotrope-like composition and detergent
JP2792134B2 (en) Fluorinated hydrocarbon azeotropic compositions
JPH06100891A (en) Solvent or composition thereof
JPH06202051A (en) Azeotropic and azeotropic-like composition and detergent
JPH04504735A (en) Azeotrope-like composition of dichloropentafluoropropane and a hydrocarbon containing 6 carbon atoms
JPH10316596A (en) Fluorinated saturated hydrocarbon
JP2780364B2 (en) Fluorinated hydrocarbon azeotropic compositions
JP2881190B2 (en) Novel azeotropic and azeotropic compositions
JP2821384B2 (en) Azeotropic composition comprising fluorinated ether and ethanol
US5747437A (en) Cleaning compositions based on 1,1,1,2,2,4,4-heptafluorobutane and C1 -C3 alcohols
JPH0717880A (en) Ternary azeotrope-like composition containing octafluorobutane
JPH0718296A (en) Mixed solvent composition
JP2823185B2 (en) Azeotropic composition composed of fluorinated ether and methanol
JPH02164404A (en) Solvent for removing adhesive moisture

Legal Events

Date Code Title Description
R150 Certificate of patent or registration of utility model

Free format text: JAPANESE INTERMEDIATE CODE: R150