JPH03197690A - Water treating agent - Google Patents
Water treating agentInfo
- Publication number
- JPH03197690A JPH03197690A JP33691489A JP33691489A JPH03197690A JP H03197690 A JPH03197690 A JP H03197690A JP 33691489 A JP33691489 A JP 33691489A JP 33691489 A JP33691489 A JP 33691489A JP H03197690 A JPH03197690 A JP H03197690A
- Authority
- JP
- Japan
- Prior art keywords
- water
- mol
- treating agent
- scale
- corrosion
- 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
Links
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 38
- 239000003795 chemical substances by application Substances 0.000 title claims abstract description 22
- 229910052751 metal Inorganic materials 0.000 claims abstract description 7
- 239000002184 metal Substances 0.000 claims abstract description 7
- 229920003169 water-soluble polymer Polymers 0.000 claims abstract description 7
- QGZKDVFQNNGYKY-UHFFFAOYSA-O Ammonium Chemical compound [NH4+] QGZKDVFQNNGYKY-UHFFFAOYSA-O 0.000 claims abstract 2
- 239000000126 substance Substances 0.000 claims description 2
- 125000003277 amino group Chemical group 0.000 claims 1
- 229910052739 hydrogen Inorganic materials 0.000 claims 1
- 239000001257 hydrogen Substances 0.000 claims 1
- 125000004435 hydrogen atom Chemical group [H]* 0.000 claims 1
- 238000005260 corrosion Methods 0.000 abstract description 9
- 230000007797 corrosion Effects 0.000 abstract description 8
- 230000015572 biosynthetic process Effects 0.000 abstract description 5
- 230000003405 preventing effect Effects 0.000 abstract description 5
- FOCAUTSVDIKZOP-UHFFFAOYSA-N chloroacetic acid Chemical compound OC(=O)CCl FOCAUTSVDIKZOP-UHFFFAOYSA-N 0.000 abstract description 4
- KXDHJXZQYSOELW-UHFFFAOYSA-N Carbamic acid Chemical group NC(O)=O KXDHJXZQYSOELW-UHFFFAOYSA-N 0.000 abstract description 2
- 150000002739 metals Chemical class 0.000 abstract description 2
- 150000001412 amines Chemical class 0.000 abstract 1
- 239000007769 metal material Substances 0.000 abstract 1
- 229920000083 poly(allylamine) Polymers 0.000 abstract 1
- VTYYLEPIZMXCLO-UHFFFAOYSA-L Calcium carbonate Chemical compound [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 description 10
- 230000000052 comparative effect Effects 0.000 description 8
- 230000000694 effects Effects 0.000 description 6
- 229910000019 calcium carbonate Inorganic materials 0.000 description 5
- 235000010216 calcium carbonate Nutrition 0.000 description 5
- 229920000642 polymer Polymers 0.000 description 5
- 239000007788 liquid Substances 0.000 description 4
- 239000013535 sea water Substances 0.000 description 4
- KWYUFKZDYYNOTN-UHFFFAOYSA-M Potassium hydroxide Chemical compound [OH-].[K+] KWYUFKZDYYNOTN-UHFFFAOYSA-M 0.000 description 3
- OFOBLEOULBTSOW-UHFFFAOYSA-N Propanedioic acid Natural products OC(=O)CC(O)=O OFOBLEOULBTSOW-UHFFFAOYSA-N 0.000 description 3
- 239000000498 cooling water Substances 0.000 description 3
- 239000011976 maleic acid Substances 0.000 description 3
- VZCYOOQTPOCHFL-UHFFFAOYSA-N trans-butenedioic acid Natural products OC(=O)C=CC(O)=O VZCYOOQTPOCHFL-UHFFFAOYSA-N 0.000 description 3
- CERQOIWHTDAKMF-UHFFFAOYSA-N Methacrylic acid Chemical compound CC(=C)C(O)=O CERQOIWHTDAKMF-UHFFFAOYSA-N 0.000 description 2
- UIIMBOGNXHQVGW-UHFFFAOYSA-M Sodium bicarbonate Chemical compound [Na+].OC([O-])=O UIIMBOGNXHQVGW-UHFFFAOYSA-M 0.000 description 2
- VZCYOOQTPOCHFL-UPHRSURJSA-N maleic acid Chemical compound OC(=O)\C=C/C(O)=O VZCYOOQTPOCHFL-UPHRSURJSA-N 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 238000001556 precipitation Methods 0.000 description 2
- 239000000047 product Substances 0.000 description 2
- 238000007789 sealing Methods 0.000 description 2
- 239000012085 test solution Substances 0.000 description 2
- SMZOUWXMTYCWNB-UHFFFAOYSA-N 2-(2-methoxy-5-methylphenyl)ethanamine Chemical compound COC1=CC=C(C)C=C1CCN SMZOUWXMTYCWNB-UHFFFAOYSA-N 0.000 description 1
- NIXOWILDQLNWCW-UHFFFAOYSA-N 2-Propenoic acid Natural products OC(=O)C=C NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 description 1
- BHPQYMZQTOCNFJ-UHFFFAOYSA-N Calcium cation Chemical compound [Ca+2] BHPQYMZQTOCNFJ-UHFFFAOYSA-N 0.000 description 1
- KCXVZYZYPLLWCC-UHFFFAOYSA-N EDTA Chemical compound OC(=O)CN(CC(O)=O)CCN(CC(O)=O)CC(O)=O KCXVZYZYPLLWCC-UHFFFAOYSA-N 0.000 description 1
- 229910001209 Low-carbon steel Inorganic materials 0.000 description 1
- 229920002125 Sokalan® Polymers 0.000 description 1
- 229910001424 calcium ion Inorganic materials 0.000 description 1
- 229920001577 copolymer Polymers 0.000 description 1
- 239000000706 filtrate Substances 0.000 description 1
- 239000003112 inhibitor Substances 0.000 description 1
- 230000002401 inhibitory effect Effects 0.000 description 1
- 239000012528 membrane Substances 0.000 description 1
- 239000002244 precipitate Substances 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 238000010992 reflux Methods 0.000 description 1
- 239000002455 scale inhibitor Substances 0.000 description 1
- 239000011734 sodium Substances 0.000 description 1
- 235000017557 sodium bicarbonate Nutrition 0.000 description 1
- 229910000030 sodium bicarbonate Inorganic materials 0.000 description 1
- 159000000000 sodium salts Chemical class 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
- 238000001308 synthesis method Methods 0.000 description 1
Landscapes
- Preventing Corrosion Or Incrustation Of Metals (AREA)
Abstract
Description
【発明の詳細な説明】
［産業上の利用分野］
本発明は水処理剤に係り、特に水系における金属の腐食
やスケールの生成を効果的に防止することができる水処
理剤に関する。DETAILED DESCRIPTION OF THE INVENTION [Industrial Application Field] The present invention relates to a water treatment agent, and particularly to a water treatment agent that can effectively prevent metal corrosion and scale formation in an aqueous system.
［従来の技術］
従来、水系の金属の腐食防止剤やスケール防止剤として
は、（メタ）アクリル酸重合体、マレイン酸重合体又は
（メタ）アクリル酸・マレイン酸共重合体が知られてい
る。[Prior Art] Conventionally, (meth)acrylic acid polymers, maleic acid polymers, or (meth)acrylic acid/maleic acid copolymers are known as water-based metal corrosion inhibitors and scale inhibitors. .
［発明が解決しようとする課題］
しかしながら、従来提供されているアクリル酸及び／又
はマレイン酸系重合体よりなる薬剤では、十分な腐食防
止効果及びスケール防止効果が得られないという欠点が
ある。[Problems to be Solved by the Invention] However, the conventionally provided agents made of acrylic acid and/or maleic acid-based polymers have a drawback in that sufficient corrosion-preventing effects and scale-preventing effects cannot be obtained.
本発明は上記従来の問題点を解決し、水系における金属
の腐食防止効果やスケールの生成防止効果に優れた水処
理剤を提供することを目的とする。An object of the present invention is to solve the above-mentioned conventional problems and provide a water treatment agent that is excellent in preventing corrosion of metals and preventing scale formation in aqueous systems.
［課題を解決するための手段］
本発明の水処理剤は、下記−数式で（Ｉ）で示される平
均分子量１０００〜１０００００の水溶性重合体を含む
ことを特徴とする。[Means for Solving the Problems] The water treatment agent of the present invention is characterized by containing a water-soluble polymer having an average molecular weight of 1,000 to 100,000 and represented by (I) in the following formula.
以下に本発明の詳細な説明する。The present invention will be explained in detail below.
本発明の水処理剤は、前記−数式［Ｉ］で示される平均
分子量１０００〜１０００００の水溶性重合体を含むも
のである。The water treatment agent of the present invention contains a water-soluble polymer represented by formula [I] above and having an average molecular weight of 1,000 to 100,000.
本発明に係る新規水溶性重合体は、例えば、ポリビニル
アミン又はポリアリルアミンに対して、モノクロル酢酸
を付加させることにより、従来公知の方法（Ｅ、Ｂａｙ
ｅｒ、に、Ｇｅｃｋｅｌｅｒ、に、Ｗｅｉｎ；ｒｔｅｒ
。The novel water-soluble polymer according to the present invention can be produced by a conventionally known method (E, Bay
er, ni, Geckler, ni, Wein;rter
.
ｈ４ａｋｒｏｍｏ１．ｃｈｅｍ、、１８１．５８５ （
１９８０）） に従って容易に製造することができ、重
合体の組成（ｉ、ｍ。h4akromo1. chem,, 181.585 (
(1980)) and the composition of the polymer (i, m).
ｎ）はモノクロル酢酸の添加量を変化させることにより
、任意に調整することができる。n) can be arbitrarily adjusted by changing the amount of monochloroacetic acid added.
例えば で表わされる重合体は次のようにして製造できる。for example The polymer represented by can be produced as follows.
即ち、まず、温度計及び攪拌機を備えた１１三つロフラ
スコに水３００ｍｆを採り、ポリビニルアミン５ｇ、モ
ノクロル酢酸６ｇ及び水酸化カリウム１０．７ｇを加え
た後、還流しながら５０℃で２４時間加熱する。これに
より上記重合体を得ることができる。That is, first, 300 mf of water was placed in a 11-three-bottle flask equipped with a thermometer and a stirrer, and 5 g of polyvinylamine, 6 g of monochloroacetic acid, and 10.7 g of potassium hydroxide were added thereto, and then heated at 50° C. for 24 hours while refluxing. . This allows the above polymer to be obtained.
同様に
は前記の合成方法においてモノクロル酢酸の添加量を低
減させれば得ることができる。Similarly, it can be obtained by reducing the amount of monochloroacetic acid added in the above synthesis method.
［作用］
前記−数式［Ｉ］で示される、構造単位としてアミノカ
ルボン酸塩を有する水溶性重合体は防食効果及びスケー
ル防止効果が著しく優れる。[Function] The water-soluble polymer having an aminocarboxylic acid salt as a structural unit, represented by the above-mentioned formula [I], has extremely excellent anti-corrosion and anti-scaling effects.
［実施例］
以下に実施例及び比較例を挙げて本発明をより具体的に
説明する。[Example] The present invention will be described in more detail with reference to Examples and Comparative Examples below.
実施例１〜８、比較例１．２
脱塩水にＣａＣｊ２２ ＊ ２Ｈ２０３００ｍｇ／Ｊ２
（ＣａＣＯ３換算量）とＮａＨＣＯｓ ３００ｍｇ／ｕ
（ＣａＣＯ３換算量）を添加し、ｐ）ｌを９．１に調整
した試験液５００ｍＡを三角フラスコに入れ、更に′ｓ
１表記載の水処理剤Ｎ０１１〜９（但し、いずれもナト
リウム塩。即ち、Ｎ。Examples 1 to 8, Comparative Example 1.2 CaCj22*2H20300mg/J2 in demineralized water
(CaCO3 equivalent amount) and NaHCOs 300mg/u
Add 500 mA of the test solution (calculated amount of CaCO3) and adjust p)l to 9.1 into an Erlenmeyer flask, and add 's
Water treatment agents No. 1 to 9 listed in Table 1 (however, all are sodium salts, that is, N.
１〜８は前記−数式［Ｉ］においてＸ＝Ｎａ、）２０
ｍ ｇ ／ Ｉｔを添加しく但し、比較例２においては
水処理剤無添加）、密栓した後、水温５０℃の恒温水槽
中に浸漬し、２０時間静置した。次に、この試験液を０
．１μｍのメンブランフィルタ−で濾過し、濾液中のカ
ルシウムイオン濃度をＥＤＴＡ法により測定した。結果
を第２表に示す。1 to 8 are the above formula [I] where X=Na, )20
(However, in Comparative Example 2, no water treatment agent was added).After sealing, the tube was immersed in a constant temperature water bath with a water temperature of 50.degree. C. and allowed to stand for 20 hours. Next, add this test solution to 0
．． It was filtered through a 1 μm membrane filter, and the calcium ion concentration in the filtrate was measured by the EDTA method. The results are shown in Table 2.
この結果から、本発明の水処理剤（Ｎｏ、１〜８）が、
炭酸カルシウムの析出を抑制する効果において、従来品
（Ｎｏ、９）に比べて極めて優れ第１
表
第２表
実施例９〜１６、比較例３．４
下記組成の合成海水を調製した（但し、この合成水は海
水の２倍濃縮水に相当する）。From this result, the water treatment agents of the present invention (Nos. 1 to 8)
Extremely superior to the conventional product (No. 9) in terms of the effect of suppressing precipitation of calcium carbonate Table 1 Table 2 Examples 9 to 16, Comparative Example 3.4 Synthetic seawater with the following composition was prepared (However, This synthetic water is equivalent to twice the concentration of seawater).
ＣａＣｊ２２ ・２Ｈ２０： ２０００ｍｇ／ｊ２
（ＣａＣＯ３換算量）ＮａＨＣＯ３： ２５０ｍｇ／Ｊ
２ （ＣａＣＯ３換算量）ＮａＣＪ２ ： ６００
００ ｍｇ／Ｊ２ｐ）ｌ ： ８．５
上記合成海水５００ｍＡを三角フラスコに入れ、更に第
１表記載の水処理剤Ｎｏ、１〜９を第３表に示す量添加
しく但し、比較例４は水処理剤無添加）、密栓した後、
水温６０℃の恒温水槽中に浸漬し、２０時間静置した。CaCj22 ・2H20: 2000mg/j2
(CaCO3 equivalent amount) NaHCO3: 250mg/J
2 (CaCO3 equivalent amount) NaCJ2: 600
00 mg/J2p)l: 8.5 500 mA of the above synthetic seawater was placed in an Erlenmeyer flask, and water treatment agents Nos. 1 to 9 listed in Table 1 were added in amounts shown in Table 3. However, in Comparative Example 4, water (no processing agents added), after sealing,
It was immersed in a constant temperature water bath with a water temperature of 60° C. and allowed to stand for 20 hours.
次に、フラスコを取り出し、試験液の濁りや沈殿物の有
無などを目視により観察した。結果を第３表に示す。Next, the flask was taken out and the test liquid was visually observed for turbidity and presence of precipitate. The results are shown in Table 3.
この結果から、本発明の水処理剤（Ｎｏ、１〜８）が合
成海水中におけるスケールの析出を抑制する効果につい
ても、従来品（Ｎｏ、９）に比べ、極めて優れているこ
とが認められる。From these results, it is recognized that the water treatment agents of the present invention (Nos. 1 to 8) are extremely superior to the conventional product (No. 9) in suppressing scale precipitation in synthetic seawater. .
第３表
実施例１７〜２４、比較例５．６
第４表に記載の各水質を示す試験液Ａ又はＢのＩＩｔを
ビーカーにとり、これに第１表記載の水処理剤Ｎｏ、１
〜９を第５表に示す量加え（但し、比較例６は水処理剤
無添加）、水温を５０℃に保持した。このビーカーに軟
鋼製テストピースを撹拌棒に懸吊し、１６０ｒｐｍの回
転速度で回転させながら５日間その状態を維持した。な
お、第４表において試験液Ａの水質は密閉循環式冷却水
系、低濃縮開放循環冷却水系、試験液Ｂの水質は約３倍
濃縮開放循環冷却水系に相当する。結果を第５表に示す
。Table 3 Examples 17 to 24, Comparative Example 5.6 Take test liquid A or B IIt showing each water quality listed in Table 4 into a beaker, and add water treatment agents No. 1 and 1 listed in Table 1.
- 9 were added in the amounts shown in Table 5 (however, no water treatment agent was added in Comparative Example 6), and the water temperature was maintained at 50°C. A mild steel test piece was suspended from a stirring rod in this beaker and maintained in that state for 5 days while rotating at a rotational speed of 160 rpm. In Table 4, the water quality of test liquid A corresponds to a closed circulation cooling water system, a low concentration open circulation cooling water system, and the water quality of test liquid B corresponds to an approximately 3 times concentrated open circulation cooling water system. The results are shown in Table 5.
この結果から、比較例５として示した薬剤Ｎｏ、９に比
べ、本発明の水処理剤Ｎ０９１〜８は極めて優れた腐食
抑制効果を有することが詔められる。From this result, it can be concluded that, compared to chemicals No. 9 and No. 9 shown as Comparative Example 5, water treatment agents Nos. 091 to 8 of the present invention have an extremely superior corrosion inhibiting effect.
第４表
第５表
［発明の効果］
以上詳述した通り、本発明の水処理剤は、防食効果及び
スケール防止効果が著しく高く、水系の金属の腐食及び
スケールの生成を効果的にかつ確実に防止することがで
きるため、各種水系の水処理剤として極めて有効である
。Table 4 Table 5 [Effects of the Invention] As detailed above, the water treatment agent of the present invention has extremely high anticorrosion and scale prevention effects, and effectively and reliably prevents metal corrosion and scale formation in water systems. It is extremely effective as a water treatment agent for various water systems.
Claims (1)
０〜１０００００の水溶性重合体を含む水処理剤。 ▲数式、化学式、表等があります▼ （但し、［Ｉ］式中、 Ｘは水素、１価金属、アンモニウム基又は 有機アミン基を表し、 ａは０又は１、 ｌは０〜９５モル％、 ｍは０〜１００モル％、 ｎは０〜１００モル％であり、かつ、 ｍ＋ｎ≧５モル％、 ｌ＋ｍ＋ｎ＝１００モル％、 である。(1) Average molecular weight 100 represented by the following general formula (I)
A water treatment agent containing a water-soluble polymer of 0 to 100,000. ▲There are mathematical formulas, chemical formulas, tables, etc.▼ (However, in formula [I], X represents hydrogen, monovalent metal, ammonium group, or organic amine group, a is 0 or 1, l is 0 to 95 mol%, m is 0 to 100 mol%, n is 0 to 100 mol%, and m+n≧5 mol%, l+m+n=100 mol%.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP33691489A JPH03197690A (en) | 1989-12-26 | 1989-12-26 | Water treating agent |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP33691489A JPH03197690A (en) | 1989-12-26 | 1989-12-26 | Water treating agent |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH03197690A true JPH03197690A (en) | 1991-08-29 |
Family
ID=18303804
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP33691489A Pending JPH03197690A (en) | 1989-12-26 | 1989-12-26 | Water treating agent |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH03197690A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5256253A (en) * | 1992-08-24 | 1993-10-26 | Betz Paperchem Inc. | Methods for inhibiting barium sulfate deposition using a poly(amine)compound or its salts in papermaking systems |
| US5629385A (en) * | 1994-11-23 | 1997-05-13 | Betzdearborn Inc. | Allylamine copolymers having phosphonic, carboxylic or sulfonic groups and N-oxide derivatives thereof |
| WO2015123294A1 (en) * | 2014-02-11 | 2015-08-20 | Cytec Industries Inc. | Primary amine-containing polymers useful as scale inhibitors |
| US10906828B2 (en) | 2015-02-11 | 2021-02-02 | Cytec Industries Inc. | Modified amines useful as scale inhibitors in wet process phosphoric acid production |
-
1989
- 1989-12-26 JP JP33691489A patent/JPH03197690A/en active Pending
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5256253A (en) * | 1992-08-24 | 1993-10-26 | Betz Paperchem Inc. | Methods for inhibiting barium sulfate deposition using a poly(amine)compound or its salts in papermaking systems |
| US5629385A (en) * | 1994-11-23 | 1997-05-13 | Betzdearborn Inc. | Allylamine copolymers having phosphonic, carboxylic or sulfonic groups and N-oxide derivatives thereof |
| WO2015123294A1 (en) * | 2014-02-11 | 2015-08-20 | Cytec Industries Inc. | Primary amine-containing polymers useful as scale inhibitors |
| CN106232874A (en) * | 2014-02-11 | 2016-12-14 | 塞特工业公司 | As the polymer containing primary amine that scale inhibitor is useful |
| US9902617B2 (en) | 2014-02-11 | 2018-02-27 | Cytec Industries Inc. | Primary amine-containing polymers useful as scale inhibitors |
| EA031387B1 (en) * | 2014-02-11 | 2018-12-28 | Сайтек Индастриз Инк. | Process for inhibiting scale produced during wet process phosphoric acid production using primary amine-containing polymers |
| US10214421B2 (en) | 2014-02-11 | 2019-02-26 | Cytec Industries Inc. | Primary amine-containing polymers useful as scale inhibitors |
| AU2015217240B2 (en) * | 2014-02-11 | 2019-05-23 | Cytec Industries Inc. | Primary amine-containing polymers useful as scale inhibitors |
| CN110396149A (en) * | 2014-02-11 | 2019-11-01 | 塞特工业公司 | As the useful polymer containing primary amine of scale inhibitor |
| CN110396149B (en) * | 2014-02-11 | 2023-09-05 | 塞特工业公司 | Primary amine-containing polymers useful as scale inhibitors |
| US10906828B2 (en) | 2015-02-11 | 2021-02-02 | Cytec Industries Inc. | Modified amines useful as scale inhibitors in wet process phosphoric acid production |
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