CA2238082C - Methodes pour prevenir la corrosion en utilisant des halo-benzotrialzoles - Google Patents

Methodes pour prevenir la corrosion en utilisant des halo-benzotrialzoles Download PDF

Info

Publication number: CA2238082C
Authority: CA; Canada
Prior art keywords: halo; corrosion; tolyltriazole; aqueous system; inhibiting
Prior art date: 1998-06-23
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 - Fee Related

Application number

CA 2238082

Other languages

English (en)

Other versions

CA2238082A1 (fr

Inventor

David W. Reichgott

Sydia B. Anderson

Michael A. Cady

Roger C. May

Anita G. Monino

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.)

Veolia WTS USA Inc

Original Assignee

BetzDearborn Inc

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.)

1998-06-23

Filing date

1998-06-23

Publication date

2004-02-10

1998-06-23 Application filed by BetzDearborn Inc filed Critical BetzDearborn Inc

1998-06-23 Priority to CA 2238082 priority Critical patent/CA2238082C/fr

1999-12-23 Publication of CA2238082A1 publication Critical patent/CA2238082A1/fr

2004-02-10 Application granted granted Critical

2004-02-10 Publication of CA2238082C publication Critical patent/CA2238082C/fr

2018-06-23 Anticipated expiration legal-status Critical

Status Expired - Fee Related legal-status Critical Current

Links

238000005260 corrosion Methods 0.000 title claims abstract description 54
230000007797 corrosion Effects 0.000 title claims abstract description 54
230000002401 inhibitory effect Effects 0.000 title claims description 26
238000000034 method Methods 0.000 title claims description 19
239000012964 benzotriazole Substances 0.000 claims description 24
238000011282 treatment Methods 0.000 claims description 23
239000000203 mixture Substances 0.000 claims description 21
239000010949 copper Substances 0.000 claims description 16
RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 15
229910052736 halogen Inorganic materials 0.000 claims description 13
150000002367 halogens Chemical class 0.000 claims description 13
229910052802 copper Inorganic materials 0.000 claims description 12
239000000463 material Substances 0.000 claims description 10
NIXOWILDQLNWCW-UHFFFAOYSA-N acrylic acid group Chemical group C(C=C)(=O)O NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 claims description 6
238000011066 ex-situ storage Methods 0.000 claims description 6
229910052751 metal Inorganic materials 0.000 claims description 6
239000002184 metal Substances 0.000 claims description 6
JPVYNHNXODAKFH-UHFFFAOYSA-N Cu2+ Chemical compound [Cu+2] JPVYNHNXODAKFH-UHFFFAOYSA-N 0.000 claims description 4
229910019142 PO4 Inorganic materials 0.000 claims description 4
ABLZXFCXXLZCGV-UHFFFAOYSA-N Phosphorous acid Chemical class OP(O)=O ABLZXFCXXLZCGV-UHFFFAOYSA-N 0.000 claims description 4
229910001431 copper ion Inorganic materials 0.000 claims description 4
150000002923 oximes Chemical class 0.000 claims description 4
235000021317 phosphate Nutrition 0.000 claims description 4
150000003013 phosphoric acid derivatives Chemical class 0.000 claims description 4
229920006243 acrylic copolymer Polymers 0.000 claims 3
239000003139 biocide Substances 0.000 claims 3
230000037427 ion transport Effects 0.000 claims 1
CMGDVUCDZOBDNL-UHFFFAOYSA-N 4-methyl-2h-benzotriazole Chemical compound CC1=CC=CC2=NNN=C12 CMGDVUCDZOBDNL-UHFFFAOYSA-N 0.000 abstract description 41
JAQDPDHEBZHQGA-UHFFFAOYSA-N 4-chloro-5-(2-methylphenyl)-2h-triazole Chemical compound CC1=CC=CC=C1C1=NNN=C1Cl JAQDPDHEBZHQGA-UHFFFAOYSA-N 0.000 abstract description 19
229910052801 chlorine Inorganic materials 0.000 abstract description 19
239000000460 chlorine Substances 0.000 abstract description 19
ZAMOUSCENKQFHK-UHFFFAOYSA-N Chlorine atom Chemical compound [Cl] ZAMOUSCENKQFHK-UHFFFAOYSA-N 0.000 abstract description 18
KMBINRQMOHJGIH-UHFFFAOYSA-N 4-bromo-5-(2-methylphenyl)-2h-triazole Chemical compound CC1=CC=CC=C1C1=NNN=C1Br KMBINRQMOHJGIH-UHFFFAOYSA-N 0.000 abstract description 8
239000003112 inhibitor Substances 0.000 abstract description 7
239000000243 solution Substances 0.000 description 30
KAESVJOAVNADME-UHFFFAOYSA-N Pyrrole Chemical compound C=1C=CNC=1 KAESVJOAVNADME-UHFFFAOYSA-N 0.000 description 26
WQYVRQLZKVEZGA-UHFFFAOYSA-N hypochlorite Inorganic materials Cl[O-] WQYVRQLZKVEZGA-UHFFFAOYSA-N 0.000 description 23
229910001209 Low-carbon steel Inorganic materials 0.000 description 19
229910000554 Admiralty brass Inorganic materials 0.000 description 15
239000007787 solid Substances 0.000 description 13
239000000498 cooling water Substances 0.000 description 12
QRUDEWIWKLJBPS-UHFFFAOYSA-N benzotriazole Chemical compound C1=CC=C2N[N][N]C2=C1 QRUDEWIWKLJBPS-UHFFFAOYSA-N 0.000 description 11
238000006243 chemical reaction Methods 0.000 description 11
235000019645 odor Nutrition 0.000 description 11
XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 11
239000005708 Sodium hypochlorite Substances 0.000 description 10
SUKJFIGYRHOWBL-UHFFFAOYSA-N sodium hypochlorite Chemical compound [Na+].Cl[O-] SUKJFIGYRHOWBL-UHFFFAOYSA-N 0.000 description 10
238000002474 experimental method Methods 0.000 description 8
KWYUFKZDYYNOTN-UHFFFAOYSA-M Potassium hydroxide Chemical compound [OH-].[K+] KWYUFKZDYYNOTN-UHFFFAOYSA-M 0.000 description 7
-1 sulfide ions Chemical class 0.000 description 7
150000003852 triazoles Chemical class 0.000 description 7
QTBSBXVTEAMEQO-UHFFFAOYSA-N Acetic acid Chemical compound CC(O)=O QTBSBXVTEAMEQO-UHFFFAOYSA-N 0.000 description 6
CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 6
YMWUJEATGCHHMB-UHFFFAOYSA-N Dichloromethane Chemical compound ClCCl YMWUJEATGCHHMB-UHFFFAOYSA-N 0.000 description 6
OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 description 6
HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 6
150000003851 azoles Chemical class 0.000 description 6
230000005764 inhibitory process Effects 0.000 description 6
230000001590 oxidative effect Effects 0.000 description 6
238000002360 preparation method Methods 0.000 description 6
238000012360 testing method Methods 0.000 description 6
WKBOTKDWSSQWDR-UHFFFAOYSA-N Bromine atom Chemical compound [Br] WKBOTKDWSSQWDR-UHFFFAOYSA-N 0.000 description 5
229910000881 Cu alloy Inorganic materials 0.000 description 5
GDTBXPJZTBHREO-UHFFFAOYSA-N bromine Substances BrBr GDTBXPJZTBHREO-UHFFFAOYSA-N 0.000 description 5
229910052794 bromium Inorganic materials 0.000 description 5
229910000019 calcium carbonate Inorganic materials 0.000 description 5
238000001816 cooling Methods 0.000 description 5
239000002244 precipitate Substances 0.000 description 5
239000011541 reaction mixture Substances 0.000 description 5
BAERPNBPLZWCES-UHFFFAOYSA-N (2-hydroxy-1-phosphonoethyl)phosphonic acid Chemical compound OCC(P(O)(O)=O)P(O)(O)=O BAERPNBPLZWCES-UHFFFAOYSA-N 0.000 description 4
QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 description 4
239000012670 alkaline solution Substances 0.000 description 4
238000004458 analytical method Methods 0.000 description 4
239000007864 aqueous solution Substances 0.000 description 4
230000000694 effects Effects 0.000 description 4
238000006056 electrooxidation reaction Methods 0.000 description 4
239000002002 slurry Substances 0.000 description 4
PZBQVZFITSVHAW-UHFFFAOYSA-N 5-chloro-2h-benzotriazole Chemical compound C1=C(Cl)C=CC2=NNN=C21 PZBQVZFITSVHAW-UHFFFAOYSA-N 0.000 description 3
229910001369 Brass Inorganic materials 0.000 description 3
KFZMGEQAYNKOFK-UHFFFAOYSA-N Isopropanol Chemical compound CC(C)O KFZMGEQAYNKOFK-UHFFFAOYSA-N 0.000 description 3
238000005481 NMR spectroscopy Methods 0.000 description 3
UCKMPCXJQFINFW-UHFFFAOYSA-N Sulphide Chemical compound [S-2] UCKMPCXJQFINFW-UHFFFAOYSA-N 0.000 description 3
239000010951 brass Substances 0.000 description 3
239000001569 carbon dioxide Substances 0.000 description 3
229910002092 carbon dioxide Inorganic materials 0.000 description 3
230000015556 catabolic process Effects 0.000 description 3
229920001577 copolymer Polymers 0.000 description 3
239000012467 final product Substances 0.000 description 3
JGJLWPGRMCADHB-UHFFFAOYSA-N hypobromite Chemical compound Br[O-] JGJLWPGRMCADHB-UHFFFAOYSA-N 0.000 description 3
QWPPOHNGKGFGJK-UHFFFAOYSA-N hypochlorous acid Chemical compound ClO QWPPOHNGKGFGJK-UHFFFAOYSA-N 0.000 description 3
230000004048 modification Effects 0.000 description 3
238000012986 modification Methods 0.000 description 3
230000001681 protective effect Effects 0.000 description 3
YXIWHUQXZSMYRE-UHFFFAOYSA-N 1,3-benzothiazole-2-thiol Chemical compound C1=CC=C2SC(S)=NC2=C1 YXIWHUQXZSMYRE-UHFFFAOYSA-N 0.000 description 2
OMKIPAAHHCWOBN-UHFFFAOYSA-N 1-chloro-4-(2-methylphenyl)triazole Chemical compound CC1=CC=CC=C1C1=CN(Cl)N=N1 OMKIPAAHHCWOBN-UHFFFAOYSA-N 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 2
229910000640 Fe alloy Inorganic materials 0.000 description 2
CWYNVVGOOAEACU-UHFFFAOYSA-N Fe2+ Chemical compound [Fe+2] CWYNVVGOOAEACU-UHFFFAOYSA-N 0.000 description 2
JRNVZBWKYDBUCA-UHFFFAOYSA-N N-chlorosuccinimide Chemical compound ClN1C(=O)CCC1=O JRNVZBWKYDBUCA-UHFFFAOYSA-N 0.000 description 2
150000001298 alcohols Chemical class 0.000 description 2
230000015572 biosynthetic process Effects 0.000 description 2
239000007795 chemical reaction product Substances 0.000 description 2
238000005660 chlorination reaction Methods 0.000 description 2
150000001875 compounds Chemical class 0.000 description 2
238000006731 degradation reaction Methods 0.000 description 2
239000008367 deionised water Substances 0.000 description 2
229910021641 deionized water Inorganic materials 0.000 description 2
RTZKZFJDLAIYFH-UHFFFAOYSA-N ether Substances CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 description 2
238000001914 filtration Methods 0.000 description 2
238000004895 liquid chromatography mass spectrometry Methods 0.000 description 2
238000001556 precipitation Methods 0.000 description 2
238000003756 stirring Methods 0.000 description 2
RYCLIXPGLDDLTM-UHFFFAOYSA-J tetrapotassium;phosphonato phosphate Chemical compound [K+].[K+].[K+].[K+].[O-]P([O-])(=O)OP([O-])([O-])=O RYCLIXPGLDDLTM-UHFFFAOYSA-J 0.000 description 2
PLGXRTUGMZEVII-UHFFFAOYSA-N 2-chloro-1h-pyrrole Chemical compound ClC1=CC=CN1 PLGXRTUGMZEVII-UHFFFAOYSA-N 0.000 description 1
CRIAGZDVEWMBRY-UHFFFAOYSA-N 4,5-dichloro-2h-benzotriazole Chemical compound ClC1=CC=C2NN=NC2=C1Cl CRIAGZDVEWMBRY-UHFFFAOYSA-N 0.000 description 1
SWRPQHMXGMUNKW-UHFFFAOYSA-N 4-(2,3-dichloro-6-methylphenyl)-2H-triazole Chemical compound ClC1=C(C(=C(C=C1)C)C=1N=NNC=1)Cl SWRPQHMXGMUNKW-UHFFFAOYSA-N 0.000 description 1
DUKXWDHNEBYJJF-UHFFFAOYSA-N 4-(6-chloro-6-methylcyclohexa-2,4-dien-1-yl)-2h-triazole Chemical compound CC1(Cl)C=CC=CC1C1=CNN=N1 DUKXWDHNEBYJJF-UHFFFAOYSA-N 0.000 description 1
IPIVUPVIFPKFTG-UHFFFAOYSA-N 4-butyl-2h-benzotriazole Chemical compound CCCCC1=CC=CC2=C1N=NN2 IPIVUPVIFPKFTG-UHFFFAOYSA-N 0.000 description 1
NGKNMHFWZMHABQ-UHFFFAOYSA-N 4-chloro-2h-benzotriazole Chemical compound ClC1=CC=CC2=NNN=C12 NGKNMHFWZMHABQ-UHFFFAOYSA-N 0.000 description 1
ZCFMGIGLXOKMJC-UHFFFAOYSA-N 5-butyl-2h-benzotriazole Chemical compound C1=C(CCCC)C=CC2=NNN=C21 ZCFMGIGLXOKMJC-UHFFFAOYSA-N 0.000 description 1
229910000851 Alloy steel Inorganic materials 0.000 description 1
OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 1
229910000990 Ni alloy Inorganic materials 0.000 description 1
GRYLNZFGIOXLOG-UHFFFAOYSA-N Nitric acid Chemical compound O[N+]([O-])=O GRYLNZFGIOXLOG-UHFFFAOYSA-N 0.000 description 1
239000002253 acid Substances 0.000 description 1
150000007513 acids Chemical class 0.000 description 1
230000009471 action Effects 0.000 description 1
125000003118 aryl group Chemical group 0.000 description 1
150000001565 benzotriazoles Chemical class 0.000 description 1
239000007844 bleaching agent Substances 0.000 description 1
238000009835 boiling Methods 0.000 description 1
229910052799 carbon Inorganic materials 0.000 description 1
230000008859 change Effects 0.000 description 1
239000003795 chemical substances by application Substances 0.000 description 1
239000012320 chlorinating reagent Substances 0.000 description 1
125000001309 chloro group Chemical group Cl* 0.000 description 1
ARUVKPQLZAKDPS-UHFFFAOYSA-L copper(II) sulfate Chemical compound [Cu+2].[O-][S+2]([O-])([O-])[O-] ARUVKPQLZAKDPS-UHFFFAOYSA-L 0.000 description 1
229910000366 copper(II) sulfate Inorganic materials 0.000 description 1
238000000354 decomposition reaction Methods 0.000 description 1
230000000593 degrading effect Effects 0.000 description 1
238000007865 diluting Methods 0.000 description 1
238000010790 dilution Methods 0.000 description 1
239000012895 dilution Substances 0.000 description 1
238000001704 evaporation Methods 0.000 description 1
230000008020 evaporation Effects 0.000 description 1
239000000706 filtrate Substances 0.000 description 1
230000026030 halogenation Effects 0.000 description 1
238000005658 halogenation reaction Methods 0.000 description 1
238000010438 heat treatment Methods 0.000 description 1
230000007062 hydrolysis Effects 0.000 description 1
238000006460 hydrolysis reaction Methods 0.000 description 1
238000011065 in-situ storage Methods 0.000 description 1
230000000977 initiatory effect Effects 0.000 description 1
230000003993 interaction Effects 0.000 description 1
150000002500 ions Chemical class 0.000 description 1
239000012528 membrane Substances 0.000 description 1
229910044991 metal oxide Inorganic materials 0.000 description 1
150000004706 metal oxides Chemical class 0.000 description 1
230000002906 microbiologic effect Effects 0.000 description 1
230000007935 neutral effect Effects 0.000 description 1
229910017604 nitric acid Inorganic materials 0.000 description 1
OFPXSFXSNFPTHF-UHFFFAOYSA-N oxaprozin Chemical compound O1C(CCC(=O)O)=NC(C=2C=CC=CC=2)=C1C1=CC=CC=C1 OFPXSFXSNFPTHF-UHFFFAOYSA-N 0.000 description 1
238000010979 pH adjustment Methods 0.000 description 1
239000011148 porous material Substances 0.000 description 1
238000000425 proton nuclear magnetic resonance spectrum Methods 0.000 description 1
230000003134 recirculating effect Effects 0.000 description 1
230000004044 response Effects 0.000 description 1
238000012552 review Methods 0.000 description 1
239000013535 sea water Substances 0.000 description 1
229910000030 sodium bicarbonate Inorganic materials 0.000 description 1
229910052979 sodium sulfide Inorganic materials 0.000 description 1
GRVFOGOEDUUMBP-UHFFFAOYSA-N sodium sulfide (anhydrous) Chemical compound [Na+].[Na+].[S-2] GRVFOGOEDUUMBP-UHFFFAOYSA-N 0.000 description 1
239000010959 steel Substances 0.000 description 1
239000010414 supernatant solution Substances 0.000 description 1
229910001428 transition metal ion Inorganic materials 0.000 description 1
238000002211 ultraviolet spectrum Methods 0.000 description 1

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
- 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
- C23F11/10—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 using organic inhibitors

Landscapes

Chemical & Material Sciences (AREA)
Engineering & Computer Science (AREA)
Materials Engineering (AREA)
Mechanical Engineering (AREA)
Metallurgy (AREA)
Organic Chemistry (AREA)
Preventing Corrosion Or Incrustation Of Metals (AREA)
Agricultural Chemicals And Associated Chemicals (AREA)

CA 2238082 1998-06-23 1998-06-23 Methodes pour prevenir la corrosion en utilisant des halo-benzotrialzoles Expired - Fee Related CA2238082C (fr)

Priority Applications (1)

Application Number	Priority Date	Filing Date	Title
CA 2238082 CA2238082C (fr)	1998-06-23	1998-06-23	Methodes pour prevenir la corrosion en utilisant des halo-benzotrialzoles

Applications Claiming Priority (1)

Application Number	Priority Date	Filing Date	Title
CA 2238082 CA2238082C (fr)	1998-06-23	1998-06-23	Methodes pour prevenir la corrosion en utilisant des halo-benzotrialzoles

Publications (2)

Publication Number	Publication Date
CA2238082A1 CA2238082A1 (fr)	1999-12-23
CA2238082C true CA2238082C (fr)	2004-02-10

Family

ID=29275750

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
CA 2238082 Expired - Fee Related CA2238082C (fr)	1998-06-23	1998-06-23	Methodes pour prevenir la corrosion en utilisant des halo-benzotrialzoles

Country Status (1)

Country	Link
CA (1)	CA2238082C (fr)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
CN110117261A (zh) *	2018-02-07	2019-08-13	上海泰禾国际贸易有限公司	一种氯化甲基苯骈三氮唑的制备方法
CN116162449B (zh) *	2023-02-17	2026-04-07	深圳市英维克科技股份有限公司	一种用于冷却液的缓蚀剂及其制备方法、冷却液

1998
- 1998-06-23 CA CA 2238082 patent/CA2238082C/fr not_active Expired - Fee Related

Also Published As

Publication number	Publication date
CA2238082A1 (fr)	1999-12-23

Legal Events

Date	Code	Title	Description
2000-10-24	EEER	Examination request
2018-08-07	MKLA	Lapsed	Effective date: 20180626

Publication	Publication Date	Title
US5772919A (en)	1998-06-30	Methods of inhibiting corrosion using halo-benzotriazoles
US5773627A (en)	1998-06-30	Methods of inhibiting corrosion using halo-benzotriazoles
EP1089982B1 (fr)	2006-08-30	Procedes anticorrosion utilisant des isomeres de chloro-methylbenzotriazole
CA2365993C (fr)	2007-07-10	Inhibiteurs de corrosion resistants a l'halogene
CA2238082C (fr)	2004-02-10	Methodes pour prevenir la corrosion en utilisant des halo-benzotrialzoles
AU744545B2 (en)	2002-02-28	Methods of inhibiting corrosion using halo-benzotriazoles
EP0971049A1 (fr)	2000-01-12	Procédés d'inhibition de la corrosion utilisant des halo-benzotriazoles
AU706221B2 (en)	1999-06-10	Methods of inhibiting corrosion using N-haloazoles
KR101190519B1 (ko)	2012-10-16	개방 순환 냉각시스템의 전처리용 수처리제 조성물 및수처리 방법
CZ20004829A3 (cs)	2001-06-13	Způsoby inhibice koroze pomocí izomerů chlormethylbenzotriazolu
MXPA00012129A (en)	2001-09-07	Methods of inhibiting corrosion using isomers of chloro-methylbenzotriazole
MXPA00005319A (en)	2001-12-13	Method of forming corrosion inhibitng films with hydrogenated benzotriazole derivatives