JPS5884981A - Corrosion inhibitor - Google Patents
Corrosion inhibitorInfo
- Publication number
- JPS5884981A JPS5884981A JP18221981A JP18221981A JPS5884981A JP S5884981 A JPS5884981 A JP S5884981A JP 18221981 A JP18221981 A JP 18221981A JP 18221981 A JP18221981 A JP 18221981A JP S5884981 A JPS5884981 A JP S5884981A
- Authority
- JP
- Japan
- Prior art keywords
- corrosion
- corrosion inhibitor
- concn
- acid
- imidacillin
- 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.)
- Granted
Links
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
- C23F—NON-MECHANICAL REMOVAL OF METALLIC MATERIAL FROM SURFACE; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL; MULTI-STEP PROCESSES FOR SURFACE TREATMENT OF METALLIC MATERIAL INVOLVING AT LEAST ONE PROCESS PROVIDED FOR IN CLASS C23 AND AT LEAST ONE PROCESS COVERED BY SUBCLASS C21D OR C22F OR CLASS C25
- C23F11/00—Inhibiting corrosion of metallic material by applying inhibitors to the surface in danger of corrosion or adding them to the corrosive agent
- C23F11/08—Inhibiting corrosion of metallic material by applying inhibitors to the surface in danger of corrosion or adding them to the corrosive agent in other liquids
Abstract
Description
【発明の詳細な説明】
本発明は海水、淡水、サワーガスを含む溶液、強酸など
に接する鋼材゛に対して有効な腐食抑制剤に関するもの
である。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a corrosion inhibitor that is effective for steel materials that come into contact with seawater, fresh water, solutions containing sour gas, strong acids, and the like.
従来、鋼材の腐食抑制剤としては中性環境においてはリ
ン酸塩、クロム酸塩、亜硝酸塩、珪酸塩などの無機化合
物を主体とする腐食抑制剤が使用されており、酸性環境
においては有機アミンなどの有機窒素化合物が主に使用
されている。Conventionally, corrosion inhibitors mainly composed of inorganic compounds such as phosphates, chromates, nitrites, and silicates have been used as corrosion inhibitors for steel materials in neutral environments, and organic amines have been used in acidic environments. Organic nitrogen compounds such as are mainly used.
しかるに、現状では中性環境に対して有効な腐食抑制剤
は酸性環境においては腐食抑制効果を示さず、また、酸
性環境において有効な腐食抑制剤は中性環境において腐
食抑制効果を示さないので腐食環境によって腐食抑制剤
を使い分ける必要がある。しかし、実際には腐食環境の
−が時間とともに変化して思わぬ腐食事故を生ずること
がある。However, at present, corrosion inhibitors that are effective in neutral environments do not exhibit corrosion inhibiting effects in acidic environments, and corrosion inhibitors that are effective in acidic environments do not exhibit corrosion inhibiting effects in neutral environments, so corrosion It is necessary to use different corrosion inhibitors depending on the environment. However, in reality, the corrosive environment may change over time and cause unexpected corrosion accidents.
たとえば貯油タンクの下にたまった水は、油から硫化水
素や炭酸ガスが溶は出して−が低下することがあると言
われており、このような場合にはその水に中性環境用の
腐食抑制剤を添加しても酸性環境用の腐食抑制剤を添加
しても鋼材の腐食をよく抑制できないという問題点があ
る。For example, it is said that hydrogen sulfide and carbon dioxide gas may dissolve from the oil in water that accumulates under an oil storage tank, causing a decrease in -. There is a problem in that even if a corrosion inhibitor is added, even if a corrosion inhibitor for acidic environments is added, corrosion of steel cannot be suppressed well.
本発明は先に述べた従来の腐食抑制剤に代るものとして
研究を行なった結果得られたもので、海水、淡水のよう
な中性環境からサワー、強酸などの酸性環境にいたるま
で鋼材の腐食を充分に抑制できる腐食抑制剤を提供する
ものである。The present invention was obtained as a result of research as an alternative to the conventional corrosion inhibitors mentioned above, and is suitable for use in steel materials ranging from neutral environments such as seawater and fresh water to acidic environments such as sour and strong acids. The present invention provides a corrosion inhibitor that can sufficiently inhibit corrosion.
すなわち、本発明は（１）イミダシリン誘導体、カルボ
ン酸およびリン酸塩化合物を腐食抑制成分として含有す
ることを特徴とする腐食抑制剤、および（２）カルボキ
シル基を少なくとも１４ｗＡ以上含むイミダシリン誘導
体およびリン酸塩化合物を腐食抑制成分として含有する
ことを特徴とする腐食抑制剤に関するものである。That is, the present invention provides (1) a corrosion inhibitor characterized by containing an imidacillin derivative, a carboxylic acid, and a phosphate compound as a corrosion-inhibiting component; and (2) an imidacillin derivative containing a carboxyl group of at least 14 wA or more and a phosphoric acid. The present invention relates to a corrosion inhibitor characterized by containing a salt compound as a corrosion-inhibiting component.
本発明における腐食抑制剤において、イミダシリン誘導
体としては、下記に示す分子構造を有するものが使用で
きる。In the corrosion inhibitor of the present invention, imidacillin derivatives having the molecular structure shown below can be used.
ただし、置換基ＲＩ％Ｒ７のうち少なくともひとつは脂
肪族、脂環族もしくは芳香族炭化水素基である。そして
これらの炭化水素基は炭素原子を５個以上、好ましくは
９〜１７個含むことが望ましい。However, at least one of the substituents RI%R7 is an aliphatic, alicyclic, or aromatic hydrocarbon group. It is desirable that these hydrocarbon groups contain 5 or more carbon atoms, preferably 9 to 17 carbon atoms.
そして、これに該当しない他の置換基Ｒは水素、脂肪族
炭化水素基、脂環−炭化水素基、芳香族炭化水素基、
１
−ａ″Ｏｎ、 −Ｒ″−８Ｈ、−Ｒ“−ＣＯＯＨ、−Ｃ
−Ｒ“−ＣＯＯＨ。Other substituents R that do not fall under these are hydrogen, aliphatic hydrocarbon group, alicyclic hydrocarbon group, aromatic hydrocarbon group, 1 -a″On, -R″-8H, -R″-COOH ,-C
-R”-COOH.
などが使用できる。etc. can be used.
ここで、Ｒ′：水素、脂肪族炭化水素基、脂環族炭化水
素基もしくは芳香族炭化水素基、Ｒ“：脂肪族、脂環族
もしくは芳香族２価炭化水累基、Ｘ：１以上の正の整数
である。Here, R': hydrogen, aliphatic hydrocarbon group, alicyclic hydrocarbon group, or aromatic hydrocarbon group, R'': aliphatic, alicyclic, or aromatic divalent hydrocarbon group, X: 1 or more is a positive integer.
なお、前記イミダシリン誘導体の分子構造でＸ−とは１
価の陰イオン（たとえば塩素イオン、臭素イオンなど）
を表わす。In addition, in the molecular structure of the imidacillin derivative, X- means 1
Valent anions (e.g. chloride, bromide, etc.)
represents.
そして、本発明におけるカルボン酸としては安息香酸、
７タル酸などのような芳香族カルボン酸、ステアリン酸
、オレイン酸などの脂肪酸、コノ・り酸、アジピン酸な
どの脂肪族ダイマー酸およびこれらの誘導体であるオキ
シカルボン酸、ケトカルボン酸、アミノカルボン酸など
が使用できる。更にこれらのカルボン酸の金属塩も同様
に使用できる。In the present invention, carboxylic acids include benzoic acid,
Aromatic carboxylic acids such as 7-talic acid, fatty acids such as stearic acid and oleic acid, aliphatic dimer acids such as cono-phosphoric acid and adipic acid, and their derivatives, oxycarboxylic acids, ketocarboxylic acids, and aminocarboxylic acids. etc. can be used. Furthermore, metal salts of these carboxylic acids can also be used.
また、本発明におけるリン酸塩化合物としてはリン酸二
水素カルシウム、リン酸二水素ナトリウム、トリポリリ
ン酸ナトリウム、ヘキサメタリン酸す） ＩＪクムなど
の各種リン酸塩化合物が使用できる。Further, as the phosphate compound in the present invention, various phosphate compounds such as calcium dihydrogen phosphate, sodium dihydrogen phosphate, sodium tripolyphosphate, and IJ cum hexametaphosphate can be used.
そして、これらの配合割合はイミダシリン誘導体は使用
環境において２５〜１０００ ＰＰｍの濃度、好ましく
は１００〜５００ ｐｐｍ程度の濃度になるように、カ
ルボン酸は１ｏ〜ｉ ００ ｐｐｍ ノ濃Ｗ、好ましく
は２０〜３０ ｐｐｍ程度の濃度になるように、そして
、リン酸塩化合物は２５〜２００ ｐｐｍ好ましくは５
０〜１００ ｐｐｍ程度の濃度となるようにすることが
望ましい。The mixing ratio of these is such that the imidacillin derivative has a concentration of 25 to 1000 PPm, preferably about 100 to 500 ppm in the usage environment, and the carboxylic acid has a concentration of 10 to 100 ppm, preferably 20 to 100 ppm. 30 ppm, and the phosphate compound is 25 to 200 ppm, preferably 5
It is desirable that the concentration be about 0 to 100 ppm.
なお、次に例を示すようなカルボキシル基もしくは水素
原子を金属原子で置換されたカルボキシル基を含むイミ
ダシリン誘導体を使用する場合は、分子内に吸着性の窒
素原子とカルボキシル基の両方をすでに含んでいるため
に、これ以外にカルボン酸をさらに添加する必要は無い
。In addition, when using an imidacillin derivative containing a carboxyl group or a carboxyl group in which a hydrogen atom is replaced with a metal atom, as shown in the following example, the imidacillin derivative must already contain both an adsorbable nitrogen atom and a carboxyl group in the molecule. Therefore, there is no need to add any other carboxylic acid.
（例１）
（例２）
本発明の腐食抑制剤におけるイミダシリン誘導体はサワ
ー環境を含む弱酸環境および強酸環境において鋼材の腐
食を非常に良く抑制できることがすでに知、られている
。そして、その腐食抑制作用はイミダシリン誘導体がそ
のような腐食環境において鋼材に対して強固な吸着皮膜
を形成し、腐食反応を引き起こす化学物質を鋼材から遮
断することによると言われている。しかしながら、多く
のイミダシリン誘導体は中性環境においては強固な吸着
皮膜を形成できないために鋼材に対してほとんど腐食抑
制効果を示さないかあるいは弱い腐食抑制効果しか示さ
ない。(Example 1) (Example 2) It is already known that the imidacillin derivative in the corrosion inhibitor of the present invention can very well inhibit corrosion of steel materials in a weak acid environment including a sour environment and a strong acid environment. The corrosion inhibiting effect is said to be due to the imidacillin derivative forming a strong adsorption film on the steel material in such a corrosive environment, thereby blocking chemical substances that cause corrosion reactions from the steel material. However, many imidacillin derivatives are unable to form a strong adsorption film in a neutral environment, and therefore exhibit little or only a weak corrosion inhibiting effect on steel materials.
本発明者はイミダシリン誘導体の分子構造、組成（他種
化合物の添７ＪＯ）と中性環境における腐食抑制機能と
の関係を検討した結果、イミダシリン誘導体とカルボン
酸もしくはカルボン酸の金属客。The present inventor investigated the relationship between the molecular structure and composition of imidacillin derivatives (addition of other compounds) and the corrosion inhibiting function in a neutral environment, and found that the imidacillin derivatives and carboxylic acids or metal compounds of carboxylic acids.
を腐食抑制成分とする腐食抑制剤およびカルボキシル基
もしくは水素原子が金属原子と置換されたカルボキシル
基を少なくとも１個以上含むイミダシリン誘導体を腐食
抑制成分とする腐食抑制剤が酸性環境のみならず淡水に
対しても顕著な腐食抑制効果を示すことを見出した。そ
して、さらには海水のような高イオン濃度の水溶液に対
して顕著な腐食抑制効果を示すリン酸塩化合物を上記腐
食抑制剤に添加すれば、酸性環境および淡水のような低
イオン濃度の水溶液に対し°て良好な腐食抑制効果を示
すばかシでなく、海水のような高イオン濃度の水溶液に
対しても高度な腐食抑制機能を持たせることかできるこ
とを見出したものである。A corrosion inhibitor containing as a corrosion inhibiting ingredient and an imidacillin derivative containing at least one carboxyl group or a carboxyl group in which a hydrogen atom is replaced with a metal atom as a corrosion inhibiting ingredient are effective not only in acidic environments but also in fresh water. It has been found that the corrosion inhibition effect is remarkable even when Furthermore, if a phosphate compound that exhibits a remarkable corrosion inhibitory effect on aqueous solutions with high ion concentrations such as seawater is added to the above corrosion inhibitor, it can be used in acid environments and aqueous solutions with low ion concentrations such as fresh water. On the other hand, it has been discovered that this material does not show a good corrosion inhibiting effect, but can also be made to have a high corrosion inhibiting function even in aqueous solutions with high ion concentration such as seawater.
そして、さらに３−メチル−５−ヒドロキシピラゾール
、１−ヒドロキシベンゾトリアゾール、コウジ酸など鉄
原子に対してキレート作用を有する化合物を上記組成の
腐食抑制剤に加えることは腐食抑制効果の安定化および
腐食抑制剤の添加濃度の削減をはかることができるので
好ましい。なお、必要があれば、他の添加剤、たとえば
界面活性剤、消泡剤などを加えて調整することができる
が、それによシ、本発明の腐食抑制剤の特性を損うこと
のないように注意することが必要である。Further, adding a compound having a chelating effect to iron atoms such as 3-methyl-5-hydroxypyrazole, 1-hydroxybenzotriazole, and kojic acid to the corrosion inhibitor having the above composition stabilizes the corrosion inhibiting effect and prevents corrosion. This is preferable because the concentration of the inhibitor added can be reduced. If necessary, other additives, such as surfactants and antifoaming agents, may be added to adjust the additives, but the additives may be added without impairing the properties of the corrosion inhibitor of the present invention. It is necessary to pay attention to
本発明において得られる腐食抑制剤は種々の形態、手段
により利用することができるものでありたとえば本腐食
抑制剤を水または水−油混合液に溶解または分散させて
この水中での鋼材の腐食を抑制する方法、または本腐食
抑制剤を水もしくは有機溶剤中に溶解または分散させて
鋼材表面に塗布して、腐食を防止する方法々どかあげら
れる。The corrosion inhibitor obtained in the present invention can be used in various forms and by various means. For example, the corrosion inhibitor can be dissolved or dispersed in water or a water-oil mixture to prevent corrosion of steel materials in water. Examples include a method of inhibiting corrosion, or a method of dissolving or dispersing the present corrosion inhibitor in water or an organic solvent and applying the solution to the surface of the steel material to prevent corrosion.
本発明による腐食抑制剤は海水・淡水のような中性環境
からサワー環境、強酸環境にいたる極めて広い範囲の環
境に対して鋼材の腐食を十分に抑制できるので、環境に
よって添加する腐食抑制剤の種類を変える必要が無いと
いう便利さの他に、−の変動が大きく、しかもその管理
が困難な環境に対しても、一度この腐食抑制剤を添加し
ておけばその後−が変化しても鋼材の腐食抑制機能が低
下しないという非常に大きな特長がある。The corrosion inhibitor according to the present invention can sufficiently inhibit corrosion of steel materials in an extremely wide range of environments, from neutral environments such as seawater and fresh water to sour environments and strong acid environments. In addition to the convenience of not having to change the type, once this corrosion inhibitor is added, even in environments where - changes are large and it is difficult to control, steel can be used even if - changes. It has the great advantage of not reducing its corrosion inhibiting function.
以下、実施例によって本発明による腐食抑制剤の効果を
具体的に示す。なお、この実施例は水または水溶液に対
する浸漬試験の結果を示したものであるが本発明による
効果はこの実施例に限定されるものではない。Hereinafter, the effects of the corrosion inhibitor according to the present invention will be specifically illustrated by examples. Although this example shows the results of an immersion test in water or an aqueous solution, the effects of the present invention are not limited to this example.
実施例１ 腐食抑制剤としては矢に示す組成のものを用いた。Example 1 The corrosion inhibitor used had the composition shown by the arrow.
（腐食抑制剤Ｉ） 次に示す分子構造を有するイミダシ
リン誘導体７０部とコハク酸１０部およびリン酸二水素
カルシウム２０部から成る腐食抑制剤。(Corrosion Inhibitor I) A corrosion inhibitor consisting of 70 parts of an imidacillin derivative having the following molecular structure, 10 parts of succinic acid, and 20 parts of calcium dihydrogen phosphate.
ただし、Ｒ：大豆油脂肪酸残基
（腐食抑制剤■） 次に示す分子構造を有するイミダシ
リン誘導体８０とリン酸二水素カルシウム２０部から成
る腐食抑制剤。However, R: soybean oil fatty acid residue (corrosion inhibitor ■) A corrosion inhibitor consisting of 80 parts of an imidacillin derivative having the following molecular structure and 20 parts of calcium dihydrogen phosphate.
ただし、Ｒ：大豆油脂肪酸残基
（腐食抑制剤■） 次に示す分子構造を有するイミダシ
リン誘導体７５部とリン酸二水素カルシウム２５部から
成る腐食抑制剤。However, R: soybean oil fatty acid residue (corrosion inhibitor ■) A corrosion inhibitor consisting of 75 parts of an imidacillin derivative having the following molecular structure and 25 parts of calcium dihydrogen phosphate.
ただし、Ｒ′：ヤシ油脂肪酸残基 なお、次に示す市販腐食抑制剤を比較例として用いた。However, R': coconut oil fatty acid residue In addition, the following commercially available corrosion inhibitor was used as a comparative example.
（市販腐食抑制剤Ａ）＋Ｊン酸を主成分とする海水用腐
食抑制剤。(Commercial Corrosion Inhibitor A) A corrosion inhibitor for seawater whose main component is J-acid.
（市販腐食抑制剤Ｂ） 亜硝酸塩化合物を主成分とする
淡水用腐食抑制剤。(Commercially available corrosion inhibitor B) A corrosion inhibitor for freshwater containing a nitrite compound as a main component.
（市販腐食抑制剤Ｃ） 有機アミンを主成分とする酸洗
用腐食抑制剤。(Commercial Corrosion Inhibitor C) A corrosion inhibitor for pickling containing an organic amine as a main component.
そして、腐食液としては次に示す４種類を用いた。The following four types of corrosive liquids were used.
（１） 水道水（空気常時吹込み）。(1) Tap water (continuously blown air).
（２） 次に組成を示す人工海水（′空気常時吹込み
）。(2) Artificial seawater whose composition is shown below (constant air injection).
最終的に０． Ｉ Ｎ ＮａＯＨ水溶液で−を８．２０
に調整。Finally 0. -8.20 with IN NaOH aqueous solution
Adjust to.
（３１次に組成を示すＮＡＣｇ溶液（サワー環境用標準
腐食液）
ＰＨ：約３
け） １０チ硫酸水溶液
上記腐食抑制剤の各種腐食液における一腐食抑制機能は
、軟鋼試験片（８８−４１、サイズ４ ｍ１１厚×１５
Ｉ１幅Ｘ ３０ Ｉｍ厚、＃３２０研摩）を腐食液に６
０℃で３日間浸漬し、その間の重量減から下記の式によ
って得られる防食率で比較した。(NACg solution (standard corrosive liquid for sour environment) whose composition is shown in 31) PH: approx. 3 ke) 10-thiosulfuric acid aqueous solution The corrosion inhibiting function of the above corrosion inhibitor in various corrosive liquids is as follows: Mild steel test piece (88-41, Size 4 m11 thickness x 15
I1 width x 30 Im thickness, #320 polished) in corrosive liquid 6
The samples were immersed at 0° C. for 3 days, and the weight loss during that time was compared using the corrosion protection rate obtained from the following formula.
防食率＝ −Ｘ １００ ＋％） Ｗ〇 九だし、Ｗ二腐食抑制剤を添加したときの重量減。Corrosion protection rate = -X 100 +%) W〇 Weight reduction when adding corrosion inhibitors.
（、。２ｇ＊□’Ｉ’＃ｌ ｔ 、ヵ。いいよ、。、１
よ。(,.2g＊□'I'#lt ,ka.Okay,.,1
Yo.
第 １ 表
得られた結果を第１表に示したが、この結果力・ら以下
のことが明らかになった。Table 1 The results obtained are shown in Table 1, which revealed the following.
（１）本発明による腐食抑制剤は淡水、海水、サワー、
強酸のいずれの環境においても良好な腐食抑制効果を示
す。(1) The corrosion inhibitor according to the present invention can be used in fresh water, sea water, sour water,
Shows good corrosion inhibition effect in any strong acid environment.
（２）市販腐食抑制剤はいずれも一部の環境においての
み良好な腐食抑制効果を示した。(2) All commercially available corrosion inhibitors showed good corrosion inhibiting effects only in some environments.
実施例２ 腐食抑制剤として次に示す組成のものを用いた。Example 2 A corrosion inhibitor having the following composition was used.
（腐食抑制剤■） 次に示す分子構造を有するイミダシ
リン誘導体８０部とリン酸二水素カルシウム２０部から
成る腐食抑制剤。(Corrosion inhibitor ■) A corrosion inhibitor consisting of 80 parts of an imidacillin derivative having the following molecular structure and 20 parts of calcium dihydrogen phosphate.
ただし、ビニヤシ油脂肪酸残基
（腐食抑制剤Ｖ） 腐食抑制剤■の場合と同じ分子構造
を有するイミダシリン誘導体４０部とリン酸二水素カル
シウム４０部とコウジ酸２０部から成る腐食抑制剤。However, coconut oil fatty acid residue (corrosion inhibitor V) is a corrosion inhibitor consisting of 40 parts of an imidacillin derivative, 40 parts of calcium dihydrogen phosphate, and 20 parts of kojic acid, which has the same molecular structure as in the case of corrosion inhibitor (2).
（腐食抑制剤■） 腐食抑制剤■の場合と同じ分子構造
を有するイミダシリン誘導体４０部とリン酸二水素カル
シウム４０部と３−メチル−５−オキシピラゾール２０
部から成る腐食抑制剤。(Corrosion inhibitor ■) 40 parts of an imidacillin derivative having the same molecular structure as in the case of corrosion inhibitor ■, 40 parts of calcium dihydrogen phosphate, and 20 parts of 3-methyl-5-oxypyrazole.
Corrosion inhibitor consisting of parts.
そして、腐食液は実施例１と同じ４種類を用いた。The same four types of corrosive liquids as in Example 1 were used.
上記腐食抑制剤の各種腐食液に対する腐食抑制機能を実
施例１と同様に防食率で比較した。なお、実験は繰返し
数５で行ない、腐食抑制効果の安定性をも確認した。得
られた結果を第２表に示す。Similar to Example 1, the corrosion inhibitory function of the above corrosion inhibitor against various corrosive liquids was compared in terms of corrosion protection rate. The experiment was repeated 5 times to confirm the stability of the corrosion inhibiting effect. The results obtained are shown in Table 2.
第 ２ 表
以上の結果から、本発明による腐食抑制剤にキレート剤
を加えるとよシ低濃度でも鋼材の腐食を安定して抑制で
きることが明らかになった。From the results shown in Table 2, it has become clear that when a chelating agent is added to the corrosion inhibitor according to the present invention, corrosion of steel can be stably inhibited even at low concentrations.
Claims (2)
ルボン酸の金属塩化合物およびリン酸塩化合物を含有す
ることを特徴とする腐食抑制剤。(1) A corrosion inhibitor characterized by containing an imidacillin derivative, a carboxylic acid or a metal salt compound of a carboxylic acid, and a phosphate compound.
と置換したカルボキシル基を少なくとも１個以上含むイ
ミダシリン誘導体とリン酸塩化合物を含有することを特
徴とする腐食抑制剤。(2) A corrosion inhibitor characterized by containing an imidacillin derivative containing at least one carboxyl group or a carboxyl group in which a hydrogen atom is replaced with a gold maple atom, and a phosphate compound.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP18221981A JPS5884981A (en) | 1981-11-16 | 1981-11-16 | Corrosion inhibitor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP18221981A JPS5884981A (en) | 1981-11-16 | 1981-11-16 | Corrosion inhibitor |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5884981A true JPS5884981A (en) | 1983-05-21 |
| JPH0128104B2 JPH0128104B2 (en) | 1989-06-01 |
Family
ID=16114421
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP18221981A Granted JPS5884981A (en) | 1981-11-16 | 1981-11-16 | Corrosion inhibitor |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5884981A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103643237A (en) * | 2013-11-11 | 2014-03-19 | 青岛佰众化工技术有限公司 | Hydrochloric acid composite corrosion inhibitor |
| CN109023382A (en) * | 2018-09-28 | 2018-12-18 | 王亮 | A kind of sea water desalination corrosion inhibiter and its preparation method and application |
-
1981
- 1981-11-16 JP JP18221981A patent/JPS5884981A/en active Granted
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103643237A (en) * | 2013-11-11 | 2014-03-19 | 青岛佰众化工技术有限公司 | Hydrochloric acid composite corrosion inhibitor |
| CN109023382A (en) * | 2018-09-28 | 2018-12-18 | 王亮 | A kind of sea water desalination corrosion inhibiter and its preparation method and application |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0128104B2 (en) | 1989-06-01 |
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