JPS63279000A - Aromatic hydrocarbon solvent - Google Patents

Aromatic hydrocarbon solvent

Info

Publication number
JPS63279000A
JPS63279000A JP11537887A JP11537887A JPS63279000A JP S63279000 A JPS63279000 A JP S63279000A JP 11537887 A JP11537887 A JP 11537887A JP 11537887 A JP11537887 A JP 11537887A JP S63279000 A JPS63279000 A JP S63279000A
Authority
JP
Japan
Prior art keywords
solvent
aromatic hydrocarbon
hydrocarbon solvent
freon
arom
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
Application number
JP11537887A
Other languages
Japanese (ja)
Inventor
Tokuo Kametaka
亀高 徳夫
Nobuo Sonoda
信夫 園田
Toyoji Enokida
榎田 豊次
Tatsuya Shitozawa
志渡沢 辰也
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.)
TOKUYAMA SEKIYU KAGAKU KK
Mitsubishi Electric Corp
Original Assignee
TOKUYAMA SEKIYU KAGAKU KK
Mitsubishi Electric Corp
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 TOKUYAMA SEKIYU KAGAKU KK, Mitsubishi Electric Corp filed Critical TOKUYAMA SEKIYU KAGAKU KK
Priority to JP11537887A priority Critical patent/JPS63279000A/en
Publication of JPS63279000A publication Critical patent/JPS63279000A/en
Pending legal-status Critical Current

Links

Landscapes

  • Detergent Compositions (AREA)
  • Cleaning Or Drying Semiconductors (AREA)

Abstract

PURPOSE:To prepare the title solvent having excellent flame retardancy, by mixing a particular arom. hydrocarbon solvent with flon 118. CONSTITUTION:An arom. hydrocarbon solvent comprising an arom. component having 8-9 carbon chains among petroleum fractions is mixed with 5-20wt.% flon 118 to prepare the title solvent. Because of disappearance of the flash point, this solvent is very safe from the fire, which renders the solvent usable for degreasing and a cleaning device in a semiconductor production process without use of a flame-proof construction, a fire-resistant material, etc.

Description

【発明の詳細な説明】 〔産業上の利用分野〕 この発明は、例えば半導体製造プロセスに用いられる芳
香族炭化水素系溶剤の改良に関するものである。
DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to improvements in aromatic hydrocarbon solvents used, for example, in semiconductor manufacturing processes.

〔従来の技術〕[Conventional technology]

従来、半導体製造プロセス等に用いられる主な溶剤とし
てトリクロロエチレンがある0例えば製造プロセスとし
てウェハの脱脂並びに洗浄などがあり、最近その有害性
が論じられるようになり、使用を見合わせる傾向にある
。そのため、トリクロロエチレン並びに類似の特徴を有
するトリクロロエタンやテトラクロロエチレンに替わる
代替溶剤の検討が成されている0例えば、その一つとし
て芳香族炭化水素系溶剤がある。
Conventionally, trichlorethylene has been the main solvent used in semiconductor manufacturing processes, etc. For example, trichlorethylene has been used in manufacturing processes such as wafer degreasing and cleaning, but recently its harmfulness has been discussed, and there is a tendency to refrain from using it. Therefore, studies are being conducted on alternative solvents to replace trichlorethylene, trichloroethane, and tetrachlorethylene having similar characteristics. For example, aromatic hydrocarbon solvents are one such solvent.

その特性としては、まず有害性を観てみると衆知のよう
に有機溶剤予防規則によれば#I8種該当品であり毒性
に関しても特に問題視はされていない。
As for its characteristics, first of all, if we look at its toxicity, it falls under class #I8 according to the Organic Solvent Prevention Regulations, as is well known, and there are no particular concerns regarding its toxicity.

次に脱脂及び洗浄力については、第2図に示すように図
中、人で示すトリクロロエチレンと図中Bで示す芳香族
炭化水素系溶剤は同等の性能を有している。
Next, as for degreasing and cleaning power, as shown in FIG. 2, trichlorethylene (indicated by human) and aromatic hydrocarbon solvent (indicated by B in the figure) have equivalent performance.

次に、トリクロロエチレンは衆知のように不燃性溶剤で
あるが、この種の芳香族炭化水素系溶剤は、消防法危険
物第4種第2石油類に属し引火点44〜49℃となって
いる。但しこの引火点はJI8に2265  に定める
々ンスキーマルテンス密閉式引火点試験機(以下、PM
法と略記する。)による。
Next, as is well known, trichlorethylene is a nonflammable solvent, but this type of aromatic hydrocarbon solvent belongs to the Fire Service Act, Class 4, Class 2 Petroleum, and has a flash point of 44-49°C. . However, this flash point is determined by the Junsky Martens closed flash point tester (hereinafter referred to as PM) specified in JI8 2265.
Abbreviated as law. )by.

〔発明が解決しようとする問題点〕[Problem that the invention seeks to solve]

従来の芳香族炭化水素系溶剤は、トリクロロエチレン等
の脱脂力及び洗浄力を有し、かつ有害性に問題がないが
引火点が44〜49℃と低く、実際の製造ラインに用い
るシこは、脱脂及び洗浄装置を防爆構造しかつ耐火材料
で構造しなければならず装置が大型化かつ高価となる問
題点がある。
Conventional aromatic hydrocarbon solvents, such as trichlorethylene, have degreasing and cleaning power and are harmless, but their flash point is low at 44-49°C, and the solvent used in actual production lines is The degreasing and cleaning equipment must be constructed of explosion-proof construction and fireproof material, which poses a problem in that the equipment becomes large and expensive.

この発明は上記のような問題を解消するためになされた
もので芳香族炭化水素系溶剤を難燃化でき、脱脂装置な
どを防爆構造かつ耐火材料る用いる必要がなくなり、装
置を安価に構成することが出来る芳香族炭化水素系溶剤
を得ることを目的とする。
This invention was made in order to solve the above-mentioned problems. It can make aromatic hydrocarbon solvents flame retardant, eliminates the need to use explosion-proof construction and fire-resistant materials for degreasing equipment, etc., and makes the equipment inexpensive. The purpose is to obtain an aromatic hydrocarbon solvent that can be used as an aromatic hydrocarbon solvent.

〔問題点を解決するための手段〕[Means for solving problems]

この発明に係る芳香族炭化水素溶剤は、この芳香族炭化
水素系溶剤にフロン11gを6〜20ωも%添加したも
のである。
The aromatic hydrocarbon solvent according to the present invention is obtained by adding 11 g of Freon to the aromatic hydrocarbon solvent in an amount of 6 to 20 ω.

〔作用〕[Effect]

この発明における芳香族炭化水素系溶剤は、5〜20w
t%添加されたフロン113により溶剤が難燃化される
The aromatic hydrocarbon solvent in this invention is 5 to 20w
The solvent is rendered flame retardant by the addition of t% of Freon 113.

〔発明の実施例〕[Embodiments of the invention]

以下、この発明の一実施例を第1図、第1表で説明する
An embodiment of the present invention will be described below with reference to FIG. 1 and Table 1.

まず、芳香族炭化水素系溶剤にフロン11Bを5〜20
wt%添加する。
First, add 5 to 20% Freon 11B to the aromatic hydrocarbon solvent.
Add wt%.

これにより、PM法による測定結果では第1表に示すよ
うになる。即ち、フロン未添加の場合、引火点が49℃
でみるのに対し、フロン113を5wt%lOwt%、
20wt%添加すると、いずれにおいても引火点が存在
しない、これは、フロン113の蒸気圧が芳香族炭化水
素系溶剤よりも高く、かつ、その蒸気密度が空気よりも
重たいために、フロン118を添加した溶剤の液面上が
フロン113の蒸気相を形成することにより、不燃性と
なるため、火気を近づけてもフロン118の蒸気相によ
って消火されることになる。
As a result, the measurement results by the PM method are as shown in Table 1. In other words, without the addition of CFCs, the flash point is 49°C.
In contrast, Freon 113 is 5wt%lOwt%,
When 20 wt% is added, there is no flash point in either case. This is because the vapor pressure of Freon 113 is higher than that of aromatic hydrocarbon solvents, and its vapor density is heavier than air. By forming a vapor phase of Freon 113 on the liquid surface of the solvent, it becomes nonflammable, so even if a flame is brought close, it will be extinguished by the vapor phase of Freon 118.

これらを第1表のJISKに示されるクリーブランド式
開放型引火点測定法を用いた場合、引火点は、未添加の
場合に比べ20〜70℃上昇し、難燃化の特性も同時に
示す。
When these are measured using the Cleveland open type flash point measurement method shown in JISK in Table 1, the flash point increases by 20 to 70°C compared to the case without addition, and also exhibits flame retardant properties.

(℃) (注)・ペンスキーマルテンス法はJISK2265に
よる。
(℃) (Note) - Pensky Martens method is based on JISK2265.

・クリーブランド法はJISK 2g74による。-Cleveland method is based on JISK 2g74.

次に、第1図により、フロン118 濃度が6015未
満についての着火温度について示す。
Next, FIG. 1 shows the ignition temperature when the Freon 118 concentration is less than 6015.

フロン11B添加濃度が5wt%以下になると着火温度
が低下するのでフロン113添加濃度は6〜20ω亀%
の範囲が望しい。
If the concentration of Freon 11B added is less than 5wt%, the ignition temperature will decrease, so the concentration of Freon 113 added should be 6 to 20ω%.
A range of is desirable.

なお、上記実施例では、芳香族炭化水素系溶剤について
示したが、他の芳香族炭化水素系溶剤のうち汎用されて
いるトルエンやキシレンにおいても同様の効果を秦する
他、イソパラフィン系溶剤やノルマルパラフィン系溶剤
で炭素数8〜12においても同様の効果を秦する。
In the above example, the aromatic hydrocarbon solvent was shown, but the same effect can be obtained with toluene and xylene, which are widely used among other aromatic hydrocarbon solvents, as well as isoparaffinic solvents and normal A similar effect can be obtained with paraffinic solvents having 8 to 12 carbon atoms.

〔発明の効果〕〔Effect of the invention〕

以上のように、この発明によれば、芳香族炭化水素系溶
剤中にフロン113を添加することにより、引火点が消
失し、火災に対する安全性が高まる効果がある。
As described above, according to the present invention, by adding Freon 113 to the aromatic hydrocarbon solvent, the flash point disappears and the fire safety is improved.

【図面の簡単な説明】[Brief explanation of drawings]

第1図はこの発明においてフロン11Bの添加率と着火
温度との関係を示すグラフ、第2図は、従来の溶剤の脱
脂及び洗浄力を示すグラフである。
FIG. 1 is a graph showing the relationship between the addition rate of Freon 11B and the ignition temperature in the present invention, and FIG. 2 is a graph showing the degreasing and cleaning power of conventional solvents.

Claims (1)

【特許請求の範囲】[Claims] 石油留分のうち炭素鎖8〜9の芳香族系成分から成る芳
香族炭化水素系溶剤において、フロン113を5〜20
wt%を添加したことを特徴とする芳香族炭化水素系溶
剤。
In aromatic hydrocarbon solvents consisting of aromatic components with carbon chains of 8 to 9 among petroleum fractions, 5 to 20% of Freon 113 is added.
An aromatic hydrocarbon solvent characterized by adding wt%.
JP11537887A 1987-05-12 1987-05-12 Aromatic hydrocarbon solvent Pending JPS63279000A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP11537887A JPS63279000A (en) 1987-05-12 1987-05-12 Aromatic hydrocarbon solvent

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP11537887A JPS63279000A (en) 1987-05-12 1987-05-12 Aromatic hydrocarbon solvent

Publications (1)

Publication Number Publication Date
JPS63279000A true JPS63279000A (en) 1988-11-16

Family

ID=14661046

Family Applications (1)

Application Number Title Priority Date Filing Date
JP11537887A Pending JPS63279000A (en) 1987-05-12 1987-05-12 Aromatic hydrocarbon solvent

Country Status (1)

Country Link
JP (1) JPS63279000A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0394082A (en) * 1989-06-12 1991-04-18 Kao Corp Detergent composition
JP2002097494A (en) * 2000-09-22 2002-04-02 Japan Energy Corp Detergent for chemical plant and its cleaning method

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0394082A (en) * 1989-06-12 1991-04-18 Kao Corp Detergent composition
JP2002097494A (en) * 2000-09-22 2002-04-02 Japan Energy Corp Detergent for chemical plant and its cleaning method

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