JP2532099B2 - Storage container for antimony pentahalide containing hydrogen fluoride - Google Patents
Storage container for antimony pentahalide containing hydrogen fluorideInfo
- Publication number
- JP2532099B2 JP2532099B2 JP62153565A JP15356587A JP2532099B2 JP 2532099 B2 JP2532099 B2 JP 2532099B2 JP 62153565 A JP62153565 A JP 62153565A JP 15356587 A JP15356587 A JP 15356587A JP 2532099 B2 JP2532099 B2 JP 2532099B2
- Authority
- JP
- Japan
- Prior art keywords
- weight
- hydrogen fluoride
- containing hydrogen
- antimony pentahalide
- storage container
- 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
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Classifications
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01G—COMPOUNDS CONTAINING METALS NOT COVERED BY SUBCLASSES C01D OR C01F
- C01G30/00—Compounds of antimony
- C01G30/006—Halides
- C01G30/007—Halides of binary type SbX3 or SbX5 with X representing a halogen, or mixed of the type SbX3X'2 with X,X' representing different halogens
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- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Inorganic Chemistry (AREA)
- Inorganic Compounds Of Heavy Metals (AREA)
Description
【発明の詳細な説明】 〔産業上の利用分野〕 本発明は、フツ化水素を含む五ハロゲン化アンチモン
を収納するための容器に関し、フツ化水素を含む五ハロ
ゲン化アンチモンと接する容器の面を特定の成分組成か
らなる合金によって構成してなることを特徴とするもの
である。TECHNICAL FIELD The present invention relates to a container for storing antimony pentahalide containing hydrogen fluoride, and a surface of the container in contact with the antimony pentahalide containing hydrogen fluoride. It is characterized by being composed of an alloy having a specific component composition.
フツ化水素を含む五ハロゲン化アンチモンが高い腐食
性を有していることは知られている。このため、該物質
と接触する金属製収納容器等の腐食を防止する方法が提
案されている。例えば、特開昭52-46004号公報によれ
ば、フツ化水素を含む五ハロゲン化アンチモンに三ハロ
ゲン化アンチモンを共存させることで腐食性を弱める方
法が提案されているが、それでも廉価な金属材料では腐
食されることが記されている。It is known that antimony pentahalide containing hydrogen fluoride has high corrosiveness. Therefore, a method of preventing corrosion of a metal container or the like that comes into contact with the substance has been proposed. For example, JP-A-52-46004 proposes a method of weakening the corrosiveness by allowing antimony trihalide to coexist with antimony pentahalide containing hydrogen fluoride, but it is still an inexpensive metal material. It is written that it is corroded.
また、本発明者等も、フツ化水素を含む五ハロゲン化
アンチモンの収納容器材料として、一般に常用されてい
るオーステナイト系ステンレス鋼、例えばクロム:16〜2
0重量％，ニツケル:8〜15重量％並びに残部が鉄及び不
可避的に混入される元素よりなる合金を用いたところ、
液相部では激しい全面腐食が、また気相部では局部的な
全面溶解が散在して発生する現象がみられ、長期の使用
が不可能であった。Further, the present inventors have also used austenitic stainless steel, which is commonly used as a container material for antimony pentahalide containing hydrogen fluoride, which is commonly used, for example, chromium: 16 to 2
0% by weight, nickel: 8 to 15% by weight, and using an alloy consisting of the balance iron and elements inevitably mixed,
There was a phenomenon in which severe general corrosion occurred in the liquid phase part and localized general dissolution occurred in the gas phase part, which made long-term use impossible.
このように、フツ化水素を含む五ハロゲン化アンチモ
ンは腐食性が激しい為に、これらの混合物を取り扱う貯
蔵容器，反応容器，或いはこれらの各容器を接続するパ
イプの内面には一般に耐食性の高い特殊な合金が使用さ
れている。しかしながら、このような耐食性の高い特殊
な合金は高価であり、装置のコストが上昇するという欠
点があった。As described above, since antimony pentahalide containing hydrogen fluoride is highly corrosive, the inner surface of the storage container for handling these mixtures, the reaction container, or the pipe connecting each container is generally highly corrosion-resistant. Alloys are used. However, such a special alloy having high corrosion resistance is expensive and has a drawback that the cost of the apparatus increases.
本発明者等は、フツ化水素を含む五ハロゲン化アンチ
モンの腐食性について検討した結果、特定の成分組成か
らなる合金が比較的廉価でかつ良好な耐食性を示すこと
を見出し、本発明を提供するに至った。As a result of examining the corrosiveness of antimony pentahalide containing hydrogen fluoride, the present inventors have found that an alloy having a specific component composition exhibits relatively low cost and good corrosion resistance, and provides the present invention. Came to.
即ち、本発明は、フツ化水素を含む五ハロゲン化アン
チモンと接触する面が、Ni:2.5〜8.0重量％,Cr:17〜30
重量％,Mo:0.5〜6.0重量％,Cu:0.05〜3.0重量％並びに
残部がFe及び不可避的に混入される元素よりなる合金に
よって構成されてなることを特徴とする、フツ化水素を
含む五ハロゲン化アンチモンの収納容器を提供するもの
である。That is, in the present invention, the surface in contact with antimony pentahalide containing hydrogen fluoride, Ni: 2.5 ~ 8.0 wt%, Cr: 17 ~ 30
%, Mo: 0.5 to 6.0% by weight, Cu: 0.05 to 3.0% by weight, and the balance being composed of an alloy consisting of Fe and elements inevitably mixed. A storage container for antimony halide is provided.
さらに、本発明は、フツ化水素を含む五ハロゲン化ア
ンチモンと接触する面が、Ni:2.5〜8.0重量％,Cr:17〜3
0重量％,Mo:0.5〜6.0重量％Cu:0.05〜3.0重量％,W及び
Ｎよりなる群から選ばれた少くとも１種の元素0.05〜3.
0重量％並びに残部がFe及び不可避的に混入される元素
よりなる合金によって構成されてなることを特徴とす
る、フツ化水素を含む五ハロゲン化アンチモンの収納容
器を提供するものである。Further, in the present invention, the surface in contact with antimony pentahalide containing hydrogen fluoride has a Ni: 2.5-8.0 wt%, Cr: 17-3.
0% by weight, Mo: 0.5-6.0% by weight Cu: 0.05-3.0% by weight, at least one element selected from the group consisting of W and N 0.05-3.
A storage container for antimony pentahalide containing hydrogen fluoride, characterized in that it is composed of an alloy of 0% by weight and the balance Fe and elements inevitably mixed.
本発明における収納容器は、フツ化水素を含む五ハロ
ゲン化アンチモンを入れて運搬或いは貯蔵するための容
器は勿論、該混合物を製造するための容器、該混合物が
関与する反応を行なわせるための反応容器等、該混合物
を取扱うためのあらゆる容器を意味する。The storage container in the present invention is not only a container for carrying or storing antimony pentahalide containing hydrogen fluoride, but also a container for producing the mixture, a reaction for carrying out a reaction involving the mixture. It means any container for handling the mixture, such as a container.
五ハロゲン化アンチモンは、一般式SbCl5-xFx（但
し、ｘは０〜５の数）で表わされる化合物である。本発
明に於いては、上記式で示される化合物の一種類または
二種類以上の混合物が何ら制限されず使用可能である。
本発明におけるフツ化水素と五ハロゲン化アンチモンと
の存在割合は特に限定されないが、一般にフツ化水素／
五ハロゲン化アンチモン（モル比）が高いほど腐食性が
強まる傾向にある。バツチ収納の場合には、フツ化水素
／五ハロゲン化アンチモン（モル比）が0.1〜20の範囲
に於いて、本発明における収納容器は特に高耐食性を維
持する。Antimony pentahalide is a compound represented by the general formula SbCl 5-x F x (where x is a number from 0 to 5). In the present invention, one kind or a mixture of two or more kinds of the compounds represented by the above formulas can be used without any limitation.
The proportion of hydrogen fluoride and antimony pentahalide in the present invention is not particularly limited, but generally hydrogen fluoride /
The higher the antimony pentahalide (molar ratio), the stronger the corrosiveness tends to be. In the case of batch storage, the storage container of the present invention maintains particularly high corrosion resistance when the hydrogen fluoride / antimony pentahalide (molar ratio) is in the range of 0.1 to 20.
また、本発明における収納容器中に五ハロゲン化アン
チモンの一定量を存在させ、その中にフツ化水素を連続
供給させる場合には、五ハロゲン化アンチモン10モル当
たりフツ化水素が0.1〜200モル／時間の範囲に於いて本
発明における収納容器は特に高耐食性を維持する。Further, when a certain amount of antimony pentahalide is present in the storage container of the present invention and hydrogen fluoride is continuously supplied therein, 0.1 to 200 mol / hydrogen fluoride per 10 mol of antimony pentahalide is used. In the range of time, the storage container according to the present invention maintains particularly high corrosion resistance.
さらに、フツ化水素を含む五ハロゲン化アンチモン
は、水を例えば、100ppm〜20,000ppm含む場合、或いは
温度が60〜160℃の場合に特に激しい腐食性を示すが、
本発明の収納容器は、このような場合にも高い耐腐食性
を示す。Further, antimony pentahalide containing hydrogen fluoride shows particularly severe corrosiveness when containing water, for example, 100 ppm to 20,000 ppm, or when the temperature is 60 to 160 ° C.,
The storage container of the present invention exhibits high corrosion resistance even in such a case.
本発明にあって最も重要な要件は、フツ化水素を含む
五ハロゲン化アンチモンと接触する収納容器の面が、特
定の成分組成よりなる合金によって構成されてなること
にある。In the present invention, the most important requirement is that the surface of the container that comes into contact with the antimony pentahalide containing hydrogen fluoride is formed of an alloy having a specific composition.
本発明における合金は、Ni:2.5〜8.0重量％、好まし
くは3.0〜7.5重量％,Cr:17〜30重量％、好ましくは18〜
28重量％,Mo:0.5〜0.6重量％、好ましくは0.5〜5.0重量
％、Cu:0.05〜3.0重量％、好ましくは0.2〜3.0重量％、
並びに残部がFe及び不可避的に混入される元素よりな
る。Ni,Cr,Mo及びCuが上記の範囲をはずれた場合には、
収納容器の耐食性が不十分か、或いは該容器の溶接等の
製作加工が難しい場合があるので、本発明の容器材料と
しては使用できない。更に具体的に説明すれば、Ni含有
量が2.5〜8.0重量％の範囲をはずれると、耐食性が不十
分な場合があり、本発明における容器材料としては使用
できない。また、Cr含有量が17重量％未満の場合には耐
食性が不十分な場合があり、逆にCr含有量が30重量％を
越える場合は該合金の溶接等の加工が難しくなるので、
本発明に用いる工業用材料として供することができな
い。更にまた、Mo含有量が0.5重量％未満の場合には耐
食性が不十分な場合があり、逆にMo含有量が6.0重量％
を越える場合には該合金が高価になりすぎたり溶接等の
加工が難しくなるので、本発明における容器材料として
は使用できない。The alloy in the present invention has Ni: 2.5 to 8.0 wt%, preferably 3.0 to 7.5 wt%, Cr: 17 to 30 wt%, preferably 18 to
28% by weight, Mo: 0.5 to 0.6% by weight, preferably 0.5 to 5.0% by weight, Cu: 0.05 to 3.0% by weight, preferably 0.2 to 3.0% by weight,
And the balance consists of Fe and elements inevitably mixed. When Ni, Cr, Mo and Cu are out of the above range,
It cannot be used as the container material of the present invention because the storage container may have insufficient corrosion resistance, or the manufacturing process such as welding of the container may be difficult. More specifically, if the Ni content deviates from the range of 2.5 to 8.0% by weight, the corrosion resistance may be insufficient and it cannot be used as a container material in the present invention. If the Cr content is less than 17% by weight, the corrosion resistance may be insufficient. Conversely, if the Cr content exceeds 30% by weight, it is difficult to process the alloy such as welding.
It cannot be used as an industrial material used in the present invention. Furthermore, when the Mo content is less than 0.5% by weight, the corrosion resistance may be insufficient, and conversely, the Mo content is 6.0% by weight.
If it exceeds the range, the alloy becomes too expensive and the processing such as welding becomes difficult, so that it cannot be used as a container material in the present invention.
本発明で用いる合金は、前記説明から明らかな如く、
Ni:2.5〜8.0重量％,Cu:17〜30重量％,Mo:0.5〜6.0重量
％及びCu:0.05〜3.0重量％を含有し残部がFeよりなるも
のであればよく、これらの成分以外に製鋼時に原料から
不可避的に混入される成分、例えばC,Si,Mn,P,S等の各
元素は存在しても支障ない。The alloy used in the present invention, as is clear from the above description,
Ni: 2.5 to 8.0 wt%, Cu: 17 to 30 wt%, Mo: 0.5 to 6.0 wt% and Cu: 0.05 to 3.0 wt% may be used as long as the balance is Fe. There is no problem even if components that are inevitably mixed from the raw material during steelmaking, such as elements such as C, Si, Mn, P and S, exist.
本発明者等は、製鋼時に原料から不可避的に混入され
る成分として、0.08重量％以下のC,2重量％以下のSi,2
重量％以下のMn,0.05重量％以下のP,0.05重量％以下の
Ｓの混入は、上記合金の性質を何等損ねるものではない
ことを確認している。The present inventors, as a component inevitably mixed from the raw material at the time of steelmaking, 0.08 wt% or less C, 2 wt% or less Si, 2
It has been confirmed that the mixing of Mn of less than wt%, P of less than 0.05 wt% and S of less than 0.05 wt% does not impair the properties of the above alloy.
上記した合金に、さらにＷ及びＮからなる群から選ば
れた少くとも一種の元素を0.05〜3.0重量％の範囲で含
む合金は、より優れた耐全面腐食性，耐隙間腐食性及び
耐孔食性を示すために特に好ましく使用される。特にW:
0.05〜1.5重量％,N:0.05〜0.5重量％の範囲で含まれて
いることが好ましい。An alloy containing at least one element selected from the group consisting of W and N in the range of 0.05 to 3.0% by weight in addition to the above-mentioned alloys has more excellent general corrosion resistance, crevice corrosion resistance and pitting corrosion resistance. Is particularly preferably used to indicate Especially W:
It is preferable to contain 0.05 to 1.5% by weight and N: 0.05 to 0.5% by weight.
本発明で使用される合金は、公知の方法によって製造
することができる。The alloy used in the present invention can be manufactured by a known method.
以上の説明により理解される様に、本発明は、特定の
成分からなる合金によって構成される、フツ化水素を含
む五ハロゲン化アンチモンの収納容器を提供するもので
ある。本発明の収納容器は、廉価であり、且つフツ化水
素を含む五ハロゲン化アンチモンに対して優れた耐食性
を示し、長期にわたって安全に使用することができる。
従って、本発明は、フツ化水素を含む五ハロゲン化アン
チモンの運搬容器，貯蔵容器或いは反応容器等の収納容
器として安価な合金の使用を可能にするものであり、コ
スト低減に大きく寄与するものである。As can be understood from the above description, the present invention provides a storage container for antimony pentahalide containing hydrogen fluoride, which is composed of an alloy of specific components. The storage container of the present invention is inexpensive, exhibits excellent corrosion resistance to antimony pentahalide containing hydrogen fluoride, and can be safely used for a long period of time.
Therefore, the present invention makes it possible to use an inexpensive alloy as a storage container such as a transport container, a storage container or a reaction container of antimony pentahalide containing hydrogen fluoride, which greatly contributes to cost reduction. is there.
以下、実施例により、本発明を具体的に説明するが、
本発明はこれらの実施例により限定されるものではな
い。Hereinafter, the present invention will be specifically described with reference to Examples.
The invention is not limited by these examples.
以下の実施例及び比較例で試験片として用いた合金の
供試材の化学組成を第１表に示した。Table 1 shows the chemical composition of the alloy test materials used as test pieces in the following Examples and Comparative Examples.
また、試験片の腐食率は、試験片をゴム板で軽くこす
って腐食生成物を除去し、水洗及びメタノール洗浄した
後に秤量して腐食減量を求め、次式によって算出した。 Further, the corrosion rate of the test piece was calculated by the following formula, by lightly rubbing the test piece with a rubber plate to remove corrosion products, washing with water and methanol, and then weighing to determine the corrosion weight loss.
実施例1. 直径70mm,高さ500mm,内容積1.9lのテフロンライニン
グ製容器に19400ppmの水が混入された五塩化アンチモン
(SbCl5)を0.39モル入れ、第１表に示す各供試材から得
られた試験片〔15mm（巾）×50mm（長）×2mm（厚）〕
をテフロンひもでぶら下げ、底部よりフツ化水素（HF）
を7.4モル（HF/SbCl5モル比＝19）入れて該容器を密封
し、150℃で330時間経過後の各供試材の腐食率を求め
た。その結果を第２表に示した。また、SbCl5中に添加
された水の量が8000ppm,500ppm及び0ppmの場合について
も上記と同様に試験を行ない、各々の場合について各供
試材の腐食率を求めた。それらの結果も第２表に示し
た。 Example 1. Antimony pentachloride having a diameter of 70 mm, a height of 500 mm, and a Teflon-lined container having an internal volume of 1.9 l mixed with 19400 ppm of water.
(SbCl 5 ) was added in an amount of 0.39 mol, and test pieces obtained from each test material shown in Table 1 [15 mm (width) x 50 mm (length) x 2 mm (thickness)]
Hanging with a Teflon string, hydrogen fluoride (HF) from the bottom
Was added in an amount of 7.4 mol (HF / SbCl 5 molar ratio = 19), the container was sealed, and the corrosion rate of each test material after 330 hours at 150 ° C. was determined. The results are shown in Table 2. Further, the same test was performed when the amount of water added to SbCl 5 was 8000 ppm, 500 ppm and 0 ppm, and the corrosion rate of each test material was obtained in each case. The results are also shown in Table 2.
第２表から明らかな様に、SbCl5中に混入された水の
量が多いほど腐食性が強い傾向にあるが、SbCl5中に混
入された水の量が19400ppmまで増加しても本発明材は良
好な耐食性を示した。As is clear from Table 2, the larger the amount of water mixed in SbCl 5 , the stronger the corrosiveness. However, even if the amount of water mixed in SbCl 5 increases to 19400 ppm, the present invention The material showed good corrosion resistance.
実施例2. 実施例１におけるSbCl5中への混入水の量を19400ppm
とし、試験温度を65℃及び110℃とした以外は、実施例
１と同様にして腐食試験を実施した。結果を第３表に示
した。 Example 2. The amount of water mixed into SbCl 5 in Example 1 was set to 19400 ppm.
The corrosion test was performed in the same manner as in Example 1 except that the test temperatures were 65 ° C and 110 ° C. The results are shown in Table 3.
実施例3. 実施例１におけるSbCl5中への混入水の量を19400ppm
とし、HFの量を0.080モル（HF/SbCl5モル比＝0.2）及び
0.78モル（HF/SbCl5モル比＝２）とした以外は、実施例
１と同様にして腐食試験を実施した。結果を第４表に示
した。 Example 3. The amount of water mixed into SbCl 5 in Example 1 was set to 19400 ppm.
And the amount of HF is 0.080 mol (HF / SbCl 5 molar ratio = 0.2) and
A corrosion test was conducted in the same manner as in Example 1 except that the molar ratio was 0.78 (HF / SbCl 5 molar ratio = 2). The results are shown in Table 4.
実施例4. 直径70mm,高さ500mm,内容積1.9lのテフロンライニン
グ製容器に19400ppmの水が混入されたSbCl5を10モル入
れ、第１表に示す各供試材から得られた試験片〔30mm
（巾）×50mm（長）×20mm（厚）〕をテフロンひもでぶ
ら下げ、底部よりHFを0.2モル/Hr,20モル/Hr及び190モ
ル/Hrの各流量で連続供給しながら、150℃で120時間の
腐食試験を行ない、各々の場合について各供試材の腐食
率を求めた。結果を第５表に示した。 Example 4. Test pieces obtained from each test material shown in Table 1 by adding 10 mol of SbCl 5 mixed with 19400 ppm of water into a Teflon-lined container having a diameter of 70 mm, a height of 500 mm and an internal volume of 1.9 l (30 mm
(Width) x 50 mm (length) x 20 mm (thickness)] is hung with a Teflon string and HF is continuously supplied from the bottom at each flow rate of 0.2 mol / Hr, 20 mol / Hr and 190 mol / Hr at 150 ° C. A 120-hour corrosion test was performed, and the corrosion rate of each test material was determined in each case. The results are shown in Table 5.
第５表から明らかな様に、HFの流量が多いほど腐食性
が強い傾向にあるが、SbCl510モル当たりのHF流量が95
モル/Hrまで増加しても本発明材は良好な耐食性を示し
た。As is clear from Table 5, corrosiveness tends to be stronger as the flow rate of HF increases, but the flow rate of HF per 10 mol of SbCl 5 is 95.
Even if it increased to mol / Hr, the material of the present invention showed good corrosion resistance.
Claims (2)
と接触する面が、ニッケル2.5重量％以上8.0重量％未
満，クロム17〜30重量％，モリブテン0.5〜6.0重量％，
銅0.05〜3.0重量％並びに残部が鉄及び不可避的に混入
される元素よりなる合金によって構成されてなることを
特徴とする、フッ化水素を含む五ハロゲン化アンチモン
の収納容器。1. A surface contacting with antimony pentahalide containing hydrogen fluoride has a nickel content of 2.5% by weight or more and less than 8.0% by weight, chromium 17 to 30% by weight, molybdenum 0.5 to 6.0% by weight,
A storage container for antimony pentahalide containing hydrogen fluoride, characterized by comprising 0.05 to 3.0% by weight of copper and the balance being an alloy of iron and elements inevitably mixed.
と接触する面が、ニッケル2.5重量％以上8.0重量％未
満，クロム17〜30重量％，モリブテン0.5〜6.0重量％，
銅0.05〜3.0重量％，タングステン及び窒素よりなる群
から選ばれた少なくとも１種の元素0.05〜3.0重量％並
びに残部が鉄及び不可避的に混入される元素よりなる合
金によって構成されてなることを特徴とする、フッ化水
素を含む五ハロゲン化アンチモンの収納容器。2. The surface contacting with antimony pentahalide containing hydrogen fluoride has a nickel content of 2.5% by weight or more and less than 8.0% by weight, chromium 17 to 30% by weight, molybdenum 0.5 to 6.0% by weight,
Characterized by an alloy composed of 0.05 to 3.0% by weight of copper, 0.05 to 3.0% by weight of at least one element selected from the group consisting of tungsten and nitrogen, and the balance being iron and an element inevitably mixed. A storage container for antimony pentahalide containing hydrogen fluoride.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP62153565A JP2532099B2 (en) | 1987-06-22 | 1987-06-22 | Storage container for antimony pentahalide containing hydrogen fluoride |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP62153565A JP2532099B2 (en) | 1987-06-22 | 1987-06-22 | Storage container for antimony pentahalide containing hydrogen fluoride |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS63319213A JPS63319213A (en) | 1988-12-27 |
| JP2532099B2 true JP2532099B2 (en) | 1996-09-11 |
Family
ID=15565276
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP62153565A Expired - Lifetime JP2532099B2 (en) | 1987-06-22 | 1987-06-22 | Storage container for antimony pentahalide containing hydrogen fluoride |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2532099B2 (en) |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS4940331A (en) * | 1972-08-25 | 1974-04-15 | ||
| US4039959A (en) * | 1975-07-31 | 1977-08-02 | Westinghouse Electric Corporation | Two-tone decoder having high noise immunity |
| JPS5763666A (en) * | 1981-08-12 | 1982-04-17 | Nisshin Steel Co Ltd | Warm water container with high yield strength and corrosion resistance |
| JPS61227152A (en) * | 1985-03-29 | 1986-10-09 | Sumitomo Metal Ind Ltd | Surface covered heat resisting steel pipe for boiler for recovering black liquor |
-
1987
- 1987-06-22 JP JP62153565A patent/JP2532099B2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPS63319213A (en) | 1988-12-27 |
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