NO155973B - PROCEDURE TO AA REDUCE THE CORROSION EFFECT OF Aqueous SALT SOLUTION ON SURFACTURED METAL SURFACES. - Google Patents
PROCEDURE TO AA REDUCE THE CORROSION EFFECT OF Aqueous SALT SOLUTION ON SURFACTURED METAL SURFACES. Download PDFInfo
- Publication number
- NO155973B NO155973B NO792606A NO792606A NO155973B NO 155973 B NO155973 B NO 155973B NO 792606 A NO792606 A NO 792606A NO 792606 A NO792606 A NO 792606A NO 155973 B NO155973 B NO 155973B
- Authority
- NO
- Norway
- Prior art keywords
- salt
- sulfur compound
- quaternary
- salt solution
- compound
- Prior art date
Links
- 239000012266 salt solution Substances 0.000 title claims description 41
- 230000007797 corrosion Effects 0.000 title claims description 20
- 238000005260 corrosion Methods 0.000 title claims description 20
- 238000000034 method Methods 0.000 title claims description 17
- 229910052751 metal Inorganic materials 0.000 title claims description 8
- 239000002184 metal Substances 0.000 title claims description 8
- 230000000694 effects Effects 0.000 title claims description 4
- -1 halides calcium chloride Chemical class 0.000 claims description 22
- 150000003839 salts Chemical group 0.000 claims description 19
- 150000003464 sulfur compounds Chemical class 0.000 claims description 18
- 125000004432 carbon atom Chemical group C* 0.000 claims description 10
- 150000001875 compounds Chemical class 0.000 claims description 9
- JUJWROOIHBZHMG-UHFFFAOYSA-N Pyridine Chemical group C1=CC=NC=C1 JUJWROOIHBZHMG-UHFFFAOYSA-N 0.000 claims description 8
- LNKPCMOUFKLBCM-UHFFFAOYSA-M 1-octylpyridin-1-ium;bromide Chemical compound [Br-].CCCCCCCC[N+]1=CC=CC=C1 LNKPCMOUFKLBCM-UHFFFAOYSA-M 0.000 claims description 6
- UMGDCJDMYOKAJW-UHFFFAOYSA-N thiourea Chemical compound NC(N)=S UMGDCJDMYOKAJW-UHFFFAOYSA-N 0.000 claims description 6
- JIAARYAFYJHUJI-UHFFFAOYSA-L zinc dichloride Chemical compound [Cl-].[Cl-].[Zn+2] JIAARYAFYJHUJI-UHFFFAOYSA-L 0.000 claims description 6
- FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical compound [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 claims description 5
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 claims description 5
- 125000004435 hydrogen atom Chemical group [H]* 0.000 claims description 5
- SLRMQYXOBQWXCR-UHFFFAOYSA-N 2154-56-5 Chemical compound [CH2]C1=CC=CC=C1 SLRMQYXOBQWXCR-UHFFFAOYSA-N 0.000 claims description 4
- SOIFLUNRINLCBN-UHFFFAOYSA-N ammonium thiocyanate Chemical compound [NH4+].[S-]C#N SOIFLUNRINLCBN-UHFFFAOYSA-N 0.000 claims description 4
- 239000001110 calcium chloride Substances 0.000 claims description 4
- 229910001628 calcium chloride Inorganic materials 0.000 claims description 4
- AEOCXXJPGCBFJA-UHFFFAOYSA-N ethionamide Chemical compound CCC1=CC(C(N)=S)=CC=N1 AEOCXXJPGCBFJA-UHFFFAOYSA-N 0.000 claims description 4
- ZMZDMBWJUHKJPS-UHFFFAOYSA-N hydrogen thiocyanate Natural products SC#N ZMZDMBWJUHKJPS-UHFFFAOYSA-N 0.000 claims description 4
- AWJUIBRHMBBTKR-UHFFFAOYSA-N isoquinoline Chemical group C1=NC=CC2=CC=CC=C21 AWJUIBRHMBBTKR-UHFFFAOYSA-N 0.000 claims description 4
- 229910052717 sulfur Inorganic materials 0.000 claims description 4
- 239000011593 sulfur Substances 0.000 claims description 4
- CWYNVVGOOAEACU-UHFFFAOYSA-N Fe2+ Chemical compound [Fe+2] CWYNVVGOOAEACU-UHFFFAOYSA-N 0.000 claims description 3
- ZMZDMBWJUHKJPS-UHFFFAOYSA-M Thiocyanate anion Chemical compound [S-]C#N ZMZDMBWJUHKJPS-UHFFFAOYSA-M 0.000 claims description 3
- XSQUKJJJFZCRTK-UHFFFAOYSA-N Urea Natural products NC(N)=O XSQUKJJJFZCRTK-UHFFFAOYSA-N 0.000 claims description 3
- 125000000217 alkyl group Chemical group 0.000 claims description 3
- 239000011592 zinc chloride Substances 0.000 claims description 3
- 235000005074 zinc chloride Nutrition 0.000 claims description 3
- SMWDFEZZVXVKRB-UHFFFAOYSA-N Quinoline Chemical group N1=CC=CC2=CC=CC=C21 SMWDFEZZVXVKRB-UHFFFAOYSA-N 0.000 claims description 2
- 125000003118 aryl group Chemical group 0.000 claims description 2
- 150000001868 cobalt Chemical class 0.000 claims description 2
- 239000001257 hydrogen Substances 0.000 claims description 2
- 229910052739 hydrogen Inorganic materials 0.000 claims description 2
- 230000003647 oxidation Effects 0.000 claims description 2
- 238000007254 oxidation reaction Methods 0.000 claims description 2
- GDTBXPJZTBHREO-UHFFFAOYSA-N bromine Substances BrBr GDTBXPJZTBHREO-UHFFFAOYSA-N 0.000 claims 1
- 229910052794 bromium Inorganic materials 0.000 claims 1
- 125000001246 bromo group Chemical group Br* 0.000 claims 1
- 238000012360 testing method Methods 0.000 description 16
- 239000003112 inhibitor Substances 0.000 description 12
- CSCPPACGZOOCGX-UHFFFAOYSA-N Acetone Chemical compound CC(C)=O CSCPPACGZOOCGX-UHFFFAOYSA-N 0.000 description 8
- 239000000243 solution Substances 0.000 description 8
- 239000000203 mixture Substances 0.000 description 7
- CPELXLSAUQHCOX-UHFFFAOYSA-M Bromide Chemical compound [Br-] CPELXLSAUQHCOX-UHFFFAOYSA-M 0.000 description 4
- 239000010941 cobalt Substances 0.000 description 4
- 229910017052 cobalt Inorganic materials 0.000 description 4
- GUTLYIVDDKVIGB-UHFFFAOYSA-N cobalt atom Chemical compound [Co] GUTLYIVDDKVIGB-UHFFFAOYSA-N 0.000 description 4
- 230000002401 inhibitory effect Effects 0.000 description 4
- 230000005764 inhibitory process Effects 0.000 description 4
- HJNAJKBRYDFICV-UHFFFAOYSA-M 1-tetradecylpyridin-1-ium;bromide Chemical compound [Br-].CCCCCCCCCCCCCC[N+]1=CC=CC=C1 HJNAJKBRYDFICV-UHFFFAOYSA-M 0.000 description 3
- UXVMQQNJUSDDNG-UHFFFAOYSA-L Calcium chloride Chemical compound [Cl-].[Cl-].[Ca+2] UXVMQQNJUSDDNG-UHFFFAOYSA-L 0.000 description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 3
- KFZMGEQAYNKOFK-UHFFFAOYSA-N Isopropanol Chemical compound CC(C)O KFZMGEQAYNKOFK-UHFFFAOYSA-N 0.000 description 3
- 239000007864 aqueous solution Substances 0.000 description 3
- 239000002480 mineral oil Substances 0.000 description 3
- 235000010446 mineral oil Nutrition 0.000 description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- SPFVNQBOHYXSMM-UHFFFAOYSA-M 1-decylpyridin-1-ium;bromide Chemical compound [Br-].CCCCCCCCCC[N+]1=CC=CC=C1 SPFVNQBOHYXSMM-UHFFFAOYSA-M 0.000 description 2
- IEZDTNCUMWPRTD-UHFFFAOYSA-N 346704-04-9 Chemical compound [O-][N+](=O)C1=CC=C(N2CCNCC2)C=C1N1CCCCC1 IEZDTNCUMWPRTD-UHFFFAOYSA-N 0.000 description 2
- QTBSBXVTEAMEQO-UHFFFAOYSA-M Acetate Chemical compound CC([O-])=O QTBSBXVTEAMEQO-UHFFFAOYSA-M 0.000 description 2
- WKBOTKDWSSQWDR-UHFFFAOYSA-N Bromine atom Chemical group [Br] WKBOTKDWSSQWDR-UHFFFAOYSA-N 0.000 description 2
- RWSOTUBLDIXVET-UHFFFAOYSA-N Dihydrogen sulfide Chemical class S RWSOTUBLDIXVET-UHFFFAOYSA-N 0.000 description 2
- MBMLMWLHJBBADN-UHFFFAOYSA-N Ferrous sulfide Chemical compound [Fe]=S MBMLMWLHJBBADN-UHFFFAOYSA-N 0.000 description 2
- OAKJQQAXSVQMHS-UHFFFAOYSA-N Hydrazine Chemical compound NN OAKJQQAXSVQMHS-UHFFFAOYSA-N 0.000 description 2
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 2
- 239000000654 additive Substances 0.000 description 2
- 238000013019 agitation Methods 0.000 description 2
- 229910052783 alkali metal Inorganic materials 0.000 description 2
- WPYMKLBDIGXBTP-UHFFFAOYSA-N benzoic acid Chemical compound OC(=O)C1=CC=CC=C1 WPYMKLBDIGXBTP-UHFFFAOYSA-N 0.000 description 2
- 229910001622 calcium bromide Inorganic materials 0.000 description 2
- DVBJBNKEBPCGSY-UHFFFAOYSA-M cetylpyridinium bromide Chemical compound [Br-].CCCCCCCCCCCCCCCC[N+]1=CC=CC=C1 DVBJBNKEBPCGSY-UHFFFAOYSA-M 0.000 description 2
- 239000007795 chemical reaction product Substances 0.000 description 2
- 239000013538 functional additive Substances 0.000 description 2
- 230000005484 gravity Effects 0.000 description 2
- XMBWDFGMSWQBCA-UHFFFAOYSA-N hydrogen iodide Chemical compound I XMBWDFGMSWQBCA-UHFFFAOYSA-N 0.000 description 2
- SMWDFEZZVXVKRB-UHFFFAOYSA-O hydron;quinoline Chemical group [NH+]1=CC=CC2=CC=CC=C21 SMWDFEZZVXVKRB-UHFFFAOYSA-O 0.000 description 2
- 229910001507 metal halide Inorganic materials 0.000 description 2
- JUJWROOIHBZHMG-UHFFFAOYSA-O pyridinium Chemical group C1=CC=[NH+]C=C1 JUJWROOIHBZHMG-UHFFFAOYSA-O 0.000 description 2
- WQGWDDDVZFFDIG-UHFFFAOYSA-N pyrogallol Chemical compound OC1=CC=CC(O)=C1O WQGWDDDVZFFDIG-UHFFFAOYSA-N 0.000 description 2
- 239000011780 sodium chloride Substances 0.000 description 2
- VWDWKYIASSYTQR-UHFFFAOYSA-N sodium nitrate Chemical compound [Na+].[O-][N+]([O-])=O VWDWKYIASSYTQR-UHFFFAOYSA-N 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 125000000446 sulfanediyl group Chemical group *S* 0.000 description 2
- KCOYHFNCTWXETP-UHFFFAOYSA-N (carbamothioylamino)thiourea Chemical compound NC(=S)NNC(N)=S KCOYHFNCTWXETP-UHFFFAOYSA-N 0.000 description 1
- FPZXQVCYHDMIIA-UHFFFAOYSA-N 1,1-diphenylthiourea Chemical compound C=1C=CC=CC=1N(C(=S)N)C1=CC=CC=C1 FPZXQVCYHDMIIA-UHFFFAOYSA-N 0.000 description 1
- DQRKUBBWNJPXCW-UHFFFAOYSA-M 1-decylquinolin-1-ium;bromide Chemical compound [Br-].C1=CC=C2[N+](CCCCCCCCCC)=CC=CC2=C1 DQRKUBBWNJPXCW-UHFFFAOYSA-M 0.000 description 1
- SZRSEFNUSHACPD-UHFFFAOYSA-M 1-hexylpyridin-1-ium;bromide Chemical compound [Br-].CCCCCC[N+]1=CC=CC=C1 SZRSEFNUSHACPD-UHFFFAOYSA-M 0.000 description 1
- 229910001369 Brass Inorganic materials 0.000 description 1
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 description 1
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 239000004215 Carbon black (E152) Substances 0.000 description 1
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 1
- FCSHMCFRCYZTRQ-UHFFFAOYSA-N N,N'-diphenylthiourea Chemical compound C=1C=CC=CC=1NC(=S)NC1=CC=CC=C1 FCSHMCFRCYZTRQ-UHFFFAOYSA-N 0.000 description 1
- 229910002651 NO3 Inorganic materials 0.000 description 1
- NHNBFGGVMKEFGY-UHFFFAOYSA-N Nitrate Chemical compound [O-][N+]([O-])=O NHNBFGGVMKEFGY-UHFFFAOYSA-N 0.000 description 1
- UHGKYJXJYJWDAM-UHFFFAOYSA-N Propylthiourea Chemical compound CCCNC(N)=S UHGKYJXJYJWDAM-UHFFFAOYSA-N 0.000 description 1
- 239000004115 Sodium Silicate Substances 0.000 description 1
- QAOWNCQODCNURD-UHFFFAOYSA-L Sulfate Chemical compound [O-]S([O-])(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-L 0.000 description 1
- XSTXAVWGXDQKEL-UHFFFAOYSA-N Trichloroethylene Chemical group ClC=C(Cl)Cl XSTXAVWGXDQKEL-UHFFFAOYSA-N 0.000 description 1
- VNDYJBBGRKZCSX-UHFFFAOYSA-L Zinc bromide Inorganic materials Br[Zn]Br VNDYJBBGRKZCSX-UHFFFAOYSA-L 0.000 description 1
- UAYWVJHJZHQCIE-UHFFFAOYSA-L Zinc iodide Inorganic materials I[Zn]I UAYWVJHJZHQCIE-UHFFFAOYSA-L 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 150000007933 aliphatic carboxylic acids Chemical class 0.000 description 1
- 229910001508 alkali metal halide Inorganic materials 0.000 description 1
- 150000008045 alkali metal halides Chemical class 0.000 description 1
- 229910052977 alkali metal sulfide Inorganic materials 0.000 description 1
- 150000001340 alkali metals Chemical class 0.000 description 1
- 150000001408 amides Chemical class 0.000 description 1
- 150000001412 amines Chemical class 0.000 description 1
- UYJXRRSPUVSSMN-UHFFFAOYSA-P ammonium sulfide Chemical compound [NH4+].[NH4+].[S-2] UYJXRRSPUVSSMN-UHFFFAOYSA-P 0.000 description 1
- 238000013459 approach Methods 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 239000010951 brass Substances 0.000 description 1
- 239000011575 calcium Substances 0.000 description 1
- 229910052791 calcium Inorganic materials 0.000 description 1
- WGEFECGEFUFIQW-UHFFFAOYSA-L calcium dibromide Chemical compound [Ca+2].[Br-].[Br-] WGEFECGEFUFIQW-UHFFFAOYSA-L 0.000 description 1
- 229910001640 calcium iodide Inorganic materials 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 150000001732 carboxylic acid derivatives Chemical class 0.000 description 1
- 150000001734 carboxylic acid salts Chemical class 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 239000003638 chemical reducing agent Substances 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 229910052801 chlorine Chemical group 0.000 description 1
- 125000001309 chloro group Chemical group Cl* 0.000 description 1
- 229910001429 cobalt ion Inorganic materials 0.000 description 1
- XLJKHNWPARRRJB-UHFFFAOYSA-N cobalt(2+) Chemical compound [Co+2] XLJKHNWPARRRJB-UHFFFAOYSA-N 0.000 description 1
- QAHREYKOYSIQPH-UHFFFAOYSA-L cobalt(II) acetate Chemical compound [Co+2].CC([O-])=O.CC([O-])=O QAHREYKOYSIQPH-UHFFFAOYSA-L 0.000 description 1
- 238000004090 dissolution Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000001704 evaporation Methods 0.000 description 1
- 230000008020 evaporation Effects 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 238000005188 flotation Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 239000003349 gelling agent Substances 0.000 description 1
- 150000004820 halides Chemical class 0.000 description 1
- 231100000171 higher toxicity Toxicity 0.000 description 1
- 229930195733 hydrocarbon Natural products 0.000 description 1
- 150000002462 imidazolines Chemical class 0.000 description 1
- 230000001976 improved effect Effects 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 150000005309 metal halides Chemical class 0.000 description 1
- 150000007524 organic acids Chemical class 0.000 description 1
- 235000005985 organic acids Nutrition 0.000 description 1
- TWNQGVIAIRXVLR-UHFFFAOYSA-N oxo(oxoalumanyloxy)alumane Chemical compound O=[Al]O[Al]=O TWNQGVIAIRXVLR-UHFFFAOYSA-N 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 238000012856 packing Methods 0.000 description 1
- 229920000768 polyamine Polymers 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 239000000047 product Substances 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 239000008262 pumice Substances 0.000 description 1
- XQWBMZWDJAZPPX-UHFFFAOYSA-N pyridine-3-carbothioamide Chemical compound NC(=S)C1=CC=CN=C1 XQWBMZWDJAZPPX-UHFFFAOYSA-N 0.000 description 1
- 229940079877 pyrogallol Drugs 0.000 description 1
- 239000004576 sand Substances 0.000 description 1
- 229920006395 saturated elastomer Polymers 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 239000000344 soap Substances 0.000 description 1
- 235000010344 sodium nitrate Nutrition 0.000 description 1
- 239000004317 sodium nitrate Substances 0.000 description 1
- NTHWMYGWWRZVTN-UHFFFAOYSA-N sodium silicate Chemical compound [Na+].[Na+].[O-][Si]([O-])=O NTHWMYGWWRZVTN-UHFFFAOYSA-N 0.000 description 1
- 229910052911 sodium silicate Inorganic materials 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 150000004763 sulfides Chemical class 0.000 description 1
- LSNNMFCWUKXFEE-UHFFFAOYSA-L sulfite Chemical compound [O-]S([O-])=O LSNNMFCWUKXFEE-UHFFFAOYSA-L 0.000 description 1
- 239000004094 surface-active agent Substances 0.000 description 1
- 238000010998 test method Methods 0.000 description 1
- 239000012085 test solution Substances 0.000 description 1
- YUKQRDCYNOVPGJ-UHFFFAOYSA-N thioacetamide Chemical compound CC(N)=S YUKQRDCYNOVPGJ-UHFFFAOYSA-N 0.000 description 1
- DLFVBJFMPXGRIB-UHFFFAOYSA-N thioacetamide Natural products CC(N)=O DLFVBJFMPXGRIB-UHFFFAOYSA-N 0.000 description 1
- 150000003556 thioamides Chemical class 0.000 description 1
- 229910052725 zinc Inorganic materials 0.000 description 1
- 239000011701 zinc Substances 0.000 description 1
- 229940102001 zinc bromide Drugs 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
-
- 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
- C23F11/16—Sulfur-containing compounds
- C23F11/162—Thioaldehydes; Thioketones
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)
- Chemical Treatment Of Metals (AREA)
Description
Denne oppfinnelse angår inhibering av korrosjon This invention relates to the inhibition of corrosion
som vandige saltoppløsninger bevirker på jernholdige metaller. Ved en spesiell anvendelse for mineraloljeindustrien angår oppfinnelsen nedsettelse av korrosjon på kledninger og rør av jern og stål og andre undergrunns- eller underjordiske konstruksjonsdeler av jernholdig metall som utsettes for vandige saltoppløsninger som anvendes som kompletterings-, bearbeidnings- eller pakkvæsker. which aqueous salt solutions do to ferrous metals. In a special application for the mineral oil industry, the invention relates to the reduction of corrosion on linings and pipes of iron and steel and other underground or subterranean structural parts of ferrous metal that are exposed to aqueous salt solutions that are used as completion, processing or packing fluids.
Ved brønnbehandlingsoperasjoner benyttes salt-oppløsninger for forskjellige formål, spesielt hvor en relativt tung vandig væske er ønsket. Alkalimetallsalt-oppløsninger kan anvendes, men mer typisk anvendes kalsium-kloridoppløsninger, kalsiumbromidoppløsninger eller en blanding av disse, fordi oppløsninger med høyere spesifikk vekt kan oppnås. Slike saltoppløsninger er korroderende overfor metallgjenstander i borehullet, endog når oksygen praktisk talt ikke er tilstede. Denne korrosjon er relativt ubetydelig ved temperaturer på ca. 93°C, men blir ganske betydningsfull ved temperaturer over 120°C og særlig når temperaturen går over 150°C. In well treatment operations, salt solutions are used for various purposes, especially where a relatively heavy aqueous liquid is desired. Alkali metal salt solutions can be used, but more typically calcium chloride solutions, calcium bromide solutions or a mixture of these are used, because solutions with a higher specific gravity can be obtained. Such salt solutions are corrosive to metal objects in the borehole, even when oxygen is practically not present. This corrosion is relatively insignificant at temperatures of approx. 93°C, but becomes quite significant at temperatures above 120°C and especially when the temperature goes above 150°C.
Skjønt endel korrosjonsinhibitorer som er godt egnet til å inhibere HC1, kan finne en viss anvendelse når det gjelder å inhibere saltoppløsninger, så vil en saltsyre-inhibitor ikke nødvendigvis være en effektiv inhibitor i saltoppløsninger, i hvert fall ikke i praktisk brukbar grad. Although some corrosion inhibitors that are well suited to inhibiting HC1 may find some use when it comes to inhibiting salt solutions, a hydrochloric acid inhibitor will not necessarily be an effective inhibitor in salt solutions, at least not to a practically usable extent.
Kanadisk patent nr. 983 041 angir en vannoppløse-lig korrosjonsinhibitor for saltoppløsninger omfattende réaksjonsproduktet mellom mettede alifatiske karboksylsyrer og substituerte imidazoliner. Canadian Patent No. 983,041 discloses a water-soluble corrosion inhibitor for salt solutions comprising the reaction product between saturated aliphatic carboxylic acids and substituted imidazolines.
US-patent nr. 3 215 637 angir at en blanding av natriumsilikat og sinkklorid inhiberer korrosjon forårsaket av natriumklorid- og kalsiumklorid-oppløsninger. I patent-skriftet diskuteres også mangler ved andre kjente salt-oppløsning-inhibitorer såsom natriumnitrat, hydrazin, pyrogallol eller sulfitt. US Patent No. 3,215,637 states that a mixture of sodium silicate and zinc chloride inhibits corrosion caused by sodium chloride and calcium chloride solutions. The patent document also discusses shortcomings of other known salt dissolution inhibitors such as sodium nitrate, hydrazine, pyrogallol or sulphite.
US-patent nr. 4 010 111 angir en korrosjons-inhiberende blanding for vandige saltoppløsninger, hvor inhibitoren inneholder et reaksjonsprodukt mellom en karbok-sylsyre og et polyamin, en alkohol og en alkylbenzensulfon-syre. US Patent No. 4,010,111 discloses a corrosion-inhibiting composition for aqueous salt solutions, where the inhibitor contains a reaction product between a carboxylic acid and a polyamine, an alcohol and an alkylbenzenesulfonic acid.
Da den foreliggende oppfinnelse ble gjort, var formentlig Baroid<R> Coat B-1400 og Corexit<R> 7720 blant de mest anvendte kommersielle inhibitorer for tunge saltopp-løsninger, idet minste i mineraloljeindustrien i USA. Analyse av en prøve av ovennevnte Baroid p-produkt viser at det inneholder ca. 14 vekt% av et flyktig amin, ca. 19 vekt% isopropyl-alkohol, ca. 45 vekt% vann, resten overveiende etoksylert amid med en liten mengde karboksylsyresalt. When the present invention was made, probably Baroid<R> Coat B-1400 and Corexit<R> 7720 were among the most widely used commercial inhibitors for heavy salt solutions, being the least in the mineral oil industry in the United States. Analysis of a sample of the above-mentioned Baroid p product shows that it contains approx. 14% by weight of a volatile amine, approx. 19% by weight isopropyl alcohol, approx. 45% by weight water, the remainder predominantly ethoxylated amide with a small amount of carboxylic acid salt.
Den foreliggende oppfinnelse er basert på den oppdagelse at jernmetaller iallfall delvis kan beskyttes mot korrosjon forårsaket av vandige saltoppløsninger ved at det til saltoppløsningen tilsettes en effektiv mengde av en svovelforbindelse i hvilken svovelets oksydasjonstilstand er 0 eller mindre, og som er jevnt dispergerbar i og fortrinnsvis oppløselig i saltoppløsningen, og som er i stand til å gjøre svovel tilgjengelig for reaksjon med det jern-metall som skal beskyttes, under dannelse av en beskyttende jernsulfidfilm på overflaten av det metall som eksponeres for den inhiberte saltoppløsning.I tillegg anvendes også i det minste ett kvaternært pyridinium-, kinolinium-eller isokinolinium-salt som er oppløselig i saltoppløsningen, som et inhibitor-hjelpemiddel. The present invention is based on the discovery that ferrous metals can at least be partially protected against corrosion caused by aqueous salt solutions by adding to the salt solution an effective amount of a sulfur compound in which the oxidation state of the sulfur is 0 or less, and which is uniformly dispersible in and preferably soluble in the salt solution, and which is capable of making sulfur available for reaction with the iron metal to be protected, forming a protective iron sulphide film on the surface of the metal exposed to the inhibited salt solution. In addition, at least one quaternary pyridinium, quinolinium or isoquinolinium salt which is soluble in the salt solution, as an inhibitor aid.
Oppfinnelsen angår en fremgangsmåte til å redusere korrosjonsvirkningen av vandig saltoppløsning på jernholdige metalloverflater som kommer i kontakt med saltoppløsningen. Fremgangsmåten ifølge oppfinnelsen med foretrukne utførelses-former er angitt i kravene, og det vises til disse. The invention relates to a method for reducing the corrosion effect of aqueous salt solution on ferrous metal surfaces that come into contact with the salt solution. The method according to the invention with preferred embodiments is stated in the claims, and reference is made to these.
Vandige oppløsninger av alkalimetallhalogenider kan korrosjonsinhiberes ved fremgangsmåten ifølge oppfinnelsen, skjønt den beste virkning oppnås når saltoppløsningen inneholder minst ett flerverdig metallhalogenidsalt, såsom kalsiumklorid, bromid eller -jodid, sinkklorid, -bromid eller -jodid, eller en blanding av slike salter. Slike saltoppløsninger er vanlig anvendt ved utvinning av mineral-olje, så vel som i andre industrier. Eksempelvis kan slike saltoppløsninger anvendes i separasjonsprosesser i hvilke faste stoffer av forskjellige densiteter skilles ved flotasjon. For uten korrosjonsinhibitoren kan saltoppløsningene inne-holde forskjellige funksjonelle additiver, om dette ønskes, såsom væske-tap-additiver ("fluid loss additives"), gelerings-midler, friksjonsnedsettende midler eller overflateaktive midler. Saltoppløsninger som kan inhiberes i henhold til den foreliggende oppfinnelse, innbefatter vandige oppløsninger av organiske syrer tilsatt et passende metallhalogenid' som øker oppløsningens spesifikke vekt, men i de fleste tilfelle vil oppløsninger behandlet i henhold til den foreliggende oppfinnelse normalt ha en svakt basisk pH og består i det vesentlige av vandige oppløsninger av kalsium- eller sink-halogenider eller blandinger derav. Aqueous solutions of alkali metal halides can be corrosion inhibited by the method according to the invention, although the best effect is achieved when the salt solution contains at least one polyvalent metal halide salt, such as calcium chloride, bromide or iodide, zinc chloride, bromide or iodide, or a mixture of such salts. Such salt solutions are commonly used in the extraction of mineral oil, as well as in other industries. For example, such salt solutions can be used in separation processes in which solid substances of different densities are separated by flotation. Because without the corrosion inhibitor, the salt solutions can contain various functional additives, if desired, such as fluid loss additives, gelling agents, friction reducing agents or surfactants. Salt solutions which can be inhibited according to the present invention include aqueous solutions of organic acids with the addition of a suitable metal halide which increases the specific gravity of the solution, but in most cases solutions treated according to the present invention will normally have a slightly basic pH and consist of essentially of aqueous solutions of calcium or zinc halides or mixtures thereof.
Korrosjonsinhibitorssystemet som anvendes The corrosion inhibitor system used
ifølge oppfinnelsen har gode inhiberende egenskaper, spesielt vil høyere temperaturer ved hvilke den korrosjon som for-årsakes av saltoppløsningene, ellers ville bli relativt alvorlig. Det er også forenlig med en lang rekke funksjonelle additiver. Videre virker spesielt de mest foretrukne utførelsesformer som et skumbrytende middel, hvorved fremgangsmåten ved fremstilling av blandingene forenkles. according to the invention has good inhibitory properties, especially higher temperatures at which the corrosion caused by the salt solutions would otherwise be relatively severe. It is also compatible with a wide range of functional additives. Furthermore, in particular, the most preferred embodiments act as a foam-breaking agent, whereby the method of preparing the mixtures is simplified.
Svovelforbindelsen er fortrinnsvis en vannopp-løselig tioforbindelse, eksempelvis et tiocyanat såsom et alkalimetalltiocyanat eller, mest foretrukket, ammoniumtiocyanat. Den kan også være et organisk tioamid og i prinsippet er hvilken som helst sådan forbindelse anvendbar. Denne klasse av forbindelser innbefatter tiourea, polytiourea, hydrokarbon-substituerte derivater derav eller et tioamid med formelen: The sulfur compound is preferably a water-soluble thio compound, for example a thiocyanate such as an alkali metal thiocyanate or, most preferably, ammonium thiocyanate. It can also be an organic thioamide and in principle any such compound is applicable. This class of compounds includes thiourea, polythiourea, hydrocarbon-substituted derivatives thereof or a thioamide of the formula:
hvor A er et hydrokarbonradikal med 1-12 karbonatomer eller where A is a hydrocarbon radical with 1-12 carbon atoms or
et pyridylradikal, og hver R" er et hydrogenatom eller et alkylradikal med 1-8 karbonatomer. Tioamider såsom tiourea, 1,2-dietyltiourea, propyltiourea, 1,1-difenyltiourea, tiokarbanilid, 1,2-dibutyltiourea, ditiobiurea, tioacetamid, tionikotinamid eller tiobenzenamid er typiske eksempler på forbindelser i denne klasse. Vannoppløselige sulfider, såsom ammoniumsulfid, alkalimetallsulfider eller tilsvarende hydrosulfider, herunder H2S, er andre anvendbare tio-forbindelser. Elementært svovel som er dispergerbart i salt-oppløsningene, er også anvendbart, skjønt de ovenfor nevnte oppløselige tioforbindelser foretrekkes. a pyridyl radical, and each R" is a hydrogen atom or an alkyl radical with 1-8 carbon atoms. Thioamides such as thiourea, 1,2-diethylthiourea, propylthiourea, 1,1-diphenylthiourea, thiocarbanilide, 1,2-dibutylthiourea, dithiobiurea, thioacetamide, thionicotinamide or thiobenzenamide are typical examples of compounds in this class. Water-soluble sulfides, such as ammonium sulfide, alkali metal sulfides, or corresponding hydrosulfides, including H2S, are other useful thio compounds. Elemental sulfur that is dispersible in the salt solutions is also useful, although the above-mentioned soluble thio compounds are preferred.
I inhibitorsystemet inngår også et kvaternært pyridinium- og/eller kinolinium- og/eller isokinolinium-salt som er stabilt i den vandige saltoppløsning. Det anvendes fortrinnsvis ett eller flere av følgende salter: The inhibitor system also includes a quaternary pyridinium and/or quinolinium and/or isoquinolinium salt which is stable in the aqueous salt solution. One or more of the following salts are preferably used:
hvor R er et alkylradikal med 1-20 karbonatomer, et benzylradikal eller et alkylert benzylradikal hvor den aromatiske ring har en eller flere alkylsubstituenter inneholdende ialt 1-20 karbonatomer, hver R' er et hydrogenatom eller alkyl-eller alkoksyradikal med 1-6 karbonatomer, og X er hvilket som helst hensiktsmessig anionisk radikal såsom halogenid, sulfat, acetat eller nitrat. Det vil være klart for fagfolk på området at de forskjellige parametere ikke bør velges slik at det dannes en forbindelse med et så høyt karboninn- where R is an alkyl radical with 1-20 carbon atoms, a benzyl radical or an alkylated benzyl radical where the aromatic ring has one or more alkyl substituents containing a total of 1-20 carbon atoms, each R' is a hydrogen atom or an alkyl or alkoxy radical with 1-6 carbon atoms, and X is any suitable anionic radical such as halide, sulfate, acetate or nitrate. It will be clear to those skilled in the art that the various parameters should not be chosen so as to form a compound with such a high carbon content
hold at forbindelsen ikke er oppløselig i saltoppløsningen i en effektiv konsentrasjon. Det kvaternære pyridiniumsalt og/eller kinoliniumsalt og/eller isokinoliniumsalt velges med henblikk på tilstrekkelig oppløselighet i saltoppløsningen, slik at en effektiv mengde kan oppløses i denne. I ovenstående generelle formler er X fortrinnsvis et bromatom eller kloratom, helst et bromatom. R er fortrinnsvis et høyere-alkyl-radikal med 6-16 karbonatomer. Videre er R' fortrinnsvis hydrogen. Pyridinium-salter foretrekkes i alminnelighet. Den mest foretrukne ut-førelsesform når både ytelse og oppløselighet tas i betraktning, er n-oktylpyridiniumbromid. Blandinger av slike salter kan anvendes om det ønskes. keep the compound insoluble in the salt solution at an effective concentration. The quaternary pyridinium salt and/or quinolinium salt and/or isoquinolinium salt is selected with a view to sufficient solubility in the salt solution, so that an effective amount can be dissolved therein. In the above general formulas, X is preferably a bromine atom or chlorine atom, most preferably a bromine atom. R is preferably a higher alkyl radical with 6-16 carbon atoms. Furthermore, R' is preferably hydrogen. Pyridinium salts are generally preferred. The most preferred embodiment when both performance and solubility are considered is n-octylpyridinium bromide. Mixtures of such salts can be used if desired.
Mens hvilken som helst betydelig mengde av svovelforbindelsen vil gi noen grad av korrosjonsinhibering, vil i alminnelighet minst 0,3 g av svovelforbindelsen pr. liter salt-oppløsning være påkrevet for oppnåelse av en i praksis brukbar beskyttelse. Konsentrasjoner så høye som 20 g av sovelforbin-delsen pr. liter er i de fleste tilfeller ikke skadelig. Mer enn 3 g pr. liter saltoppløsning gir imidlertid vanligvis liten eller ingen ytterligere beskyttelse og kan faktisk i noen tilfeller medføre mindre beskyttelse enn lavere mengder. Den samlede konsentrasjon av kvaternær forbindelse og svovelforbindelse overstiger fortrinnsvis ikke 3 g pr. liter; Aller helst er den samlede konsentrasjon av svovelforbindelse og kvaternært salt fra 0,5 til 2 g pr. liter saltoppløsning. While any significant amount of the sulfur compound will provide some degree of corrosion inhibition, generally at least 0.3 g of the sulfur compound per liter of salt solution be required to achieve a practically usable protection. Concentrations as high as 20 g of the sleeping compound per liter is not harmful in most cases. More than 3 g per however, liters of saline usually provide little or no additional protection and may actually in some cases provide less protection than lower amounts. The total concentration of quaternary compound and sulfur compound preferably does not exceed 3 g per liters; Most preferably, the total concentration of sulfur compound and quaternary salt is from 0.5 to 2 g per liter of saline solution.
Det kvaternære salt anvendes i systemet The quaternary salt is used in the system
i en mengde som er effektiv til å forbedre systemets inhibering sett under ett. Det optimale forhold mellom det kvatærnære salt og svovelforbindelsen vil variere noe fra system til system, men i alminnelighet oppnås fordeler når de to komponenter anvendes i et vektforhold fra 0,1:1 til 10:1, skjønt et forhold mellom 0,125:1 og 4:1 er mer foretrukket. Et forhold på 0,2:1 til 1:1 er mest foretrukket, særlig når konsentrasjonen av komponentene nærmer seg den øvre eller den nedre grense som anbefales i det foregående avsnitt. For et gitt saltoppløsningssystem og kombinasjon in an amount effective to improve the overall inhibition of the system. The optimum ratio between the quaternary salt and the sulfur compound will vary somewhat from system to system, but in general advantages are obtained when the two components are used in a weight ratio of from 0.1:1 to 10:1, although a ratio between 0.125:1 and 4 :1 is more preferred. A ratio of 0.2:1 to 1:1 is most preferred, especially when the concentration of the components approaches the upper or lower limit recommended in the preceding paragraph. For a given salt solution system and combination
av inhibitor-komponenter vil fagfolk på området være i stand til å komme frem til en optimal konsentrasjon og et optimalt forhold. of inhibitor components, professionals in the field will be able to arrive at an optimal concentration and an optimal ratio.
Tilsetning av en liten, men effektiv mengde - eksempelvis 0,05-0,5 g Co 2+ pr. liter saltoppløsning - av et vannoppløselig koboltsalt til systemet forbedrer også dettes effektivitet, men det er ikke nødvendig for en brukbar eller endog industrielt akseptabel ytelse. Selv om en noe forbedret virkning oppnås med kobolt, er det følgelig normalt ikke en foretrukken utførelsesform for rutinemessige anvendelser å anvende kobolt, fordi det medfører en noe øket giftighet Addition of a small but effective amount - for example 0.05-0.5 g Co 2+ per liters of salt solution - of a water-soluble cobalt salt to the system also improves its efficiency, but is not necessary for usable or even industrially acceptable performance. Therefore, although a somewhat improved effect is achieved with cobalt, it is not normally a preferred embodiment for routine applications to use cobalt, because it entails a somewhat increased toxicity
og miljømessige betenkeligheter. Hvis det anvendes, kan kobolt tilveiebringes i form av praktisk talt hvilken som helst kobolt(II)-forbindelse som er tilstrekkelig oppløselig i den vandige saltoppløsning til å gi den ønskede konsentrasjon av to-verdige koboltioner. Salter såsom CoC^, CoB^, CoSO^, Co(NO-j)2' kobolt (II)-acetat eller -benzoat er alle egnede kilder for to-verdig kobolt. Salter såsom acetatet, benzoatet eller bromidet foretrekkes spesielt. and environmental concerns. If used, cobalt may be provided in the form of virtually any cobalt(II) compound sufficiently soluble in the aqueous salt solution to provide the desired concentration of divalent cobalt ions. Salts such as CoC 2 , CoB 2 , CoSO 2 , Co(NO-j) 2 ' cobalt (II) acetate or benzoate are all suitable sources of divalent cobalt. Salts such as the acetate, benzoate or bromide are particularly preferred.
De følgende eksempler og sammenlikningsforsøk The following examples and comparison tests
vil ytterligere belyse oppfinnelsen. will further elucidate the invention.
Testmetode Test method
Til bruk ved de nedenfor beskrevne korrosjons-forsøk ble det tilberedt prøvestykker som ble kuttet av stålrør (N80) med en utvendig diameter på ca. 6 cm. Prøve-stykkene ble renset ved behandling i aluminiumoksydsand, hvoretter de ble behandlet i et ultrasonisk trikloretylen-bad, renset i aceton, tørket og lagret i en eksikator. Ved ut-førelsen av forsøkene ble prøvestykkene plassert i forsøks-oppløsningen i en autoklav, og forsøkstemperaturen og -trykket ble etablert så hurtig som praktisk mulig. De angitte forsøks-tider er de tider i hvilke forsøksstykkene ble behandlet i oppløsningen ved den angitte temperatur og trykk. Samtlige forsøk ble utført under statiske betingelser, dvs. uten agitering, ved 70,3 kg/cm 2. Etter at forsøksbadet var kjølt til ca. 65,5°C, ble prøvestykkene tatt ut fra badet, vasket i aceton og deretter vasket i inhibert 15% vandig HC1 i 3-4 minutter under agitering, hvorved jernsulfidfilmen som dannes under forsøket, oppløses. Prøvestykkene ble så vasket i vann, renset med en messingbørste og pimpsteinsåpe, oppvarmet i varmt vann for å fremskynde fordampning av aceton, renset i aceton, tørket, kjølt og veiet. For use in the corrosion tests described below, test pieces were prepared which were cut from steel pipe (N80) with an external diameter of approx. 6 cm. The test pieces were cleaned by treatment in aluminum oxide sand, after which they were treated in an ultrasonic trichlorethylene bath, cleaned in acetone, dried and stored in a desiccator. When performing the tests, the test pieces were placed in the test solution in an autoclave, and the test temperature and pressure were established as quickly as practically possible. The indicated test times are the times during which the test pieces were treated in the solution at the indicated temperature and pressure. All tests were carried out under static conditions, i.e. without agitation, at 70.3 kg/cm 2. After the test bath had cooled to approx. 65.5°C, the test pieces were taken out of the bath, washed in acetone and then washed in inhibited 15% aqueous HC1 for 3-4 minutes with agitation, whereby the iron sulphide film formed during the experiment is dissolved. The test pieces were then washed in water, cleaned with a brass brush and pumice soap, heated in hot water to accelerate evaporation of acetone, cleaned in acetone, dried, cooled and weighed.
I samtlige korrosjonsforsøk ble de forskjellige additiver tilsatt i de angitte mengder til 100 ml av salt-oppløsningen. I samtlige tabeller er "Korrosjonshastighet" uttrykt som gram pr. cm 2 x den angitte forsøkstid. In all corrosion tests, the various additives were added in the indicated quantities to 100 ml of the salt solution. In all tables, "Corrosion rate" is expressed as grams per cm 2 x the specified test time.
"Prosent inhibering" er den følgende kvantitet: "Percent inhibition" is the following quantity:
Oppløsninger av forskjellige kvaternære salter ble fremstilt og anvendt som følger: Solutions of various quaternary salts were prepared and used as follows:
Prep. A: Decylkinolinumbromid (DQBr) Prep. A: Decylquinolinium bromide (DQBr)
Prep. B: Dedecylkinoliniumbromid (DodQBr) Prep. B: Dedecylquinolinium bromide (DodQBr)
Prep. C: Tetradecylpyridiniumbromid (TdPBr) Prep. C: Tetradecylpyridinium bromide (TdPBr)
Prep. D: Heksadecylpyridiniumbromid (HdPBr) Prep. D: Hexadecylpyridinium bromide (HdPBr)
Prep. E: Decylpyridiniumbromid (DPBr) Prep. E: Decylpyridinium bromide (DPBr)
Prep. F: Dodecylpyridiniumbromid (DodPBr) Prep. F: Dodecylpyridinium bromide (DodPBr)
Prep. G: Alkylsubstituert tetradecylpyridiniumbromid Prep. G: Alkyl substituted tetradecylpyridinium bromide
(AlkTdPB) (AlkTdPB)
Prep. H: Heksylpyridiniumbromid (HPBr) Prep. H: Hexylpyridinium bromide (HPBr)
Prep. I: Oktylpyridiniumbromid (OPBr) Prep. I: Octylpyridinium bromide (OPBr)
Prep. J: 0,4:1 OPBr:ammoniumtiocyanat Prep. J: 0.4:1 OPBr:ammonium thiocyanate
Prep. K: 0,26:1 OPBr:ammoniumtiocyanat Prep. K: 0.26:1 OPBr:ammonium thiocyanate
Det ble utført flere serier av korrosjonsforsøk, og disse er sammenfattet i de følgende tabeller. Several series of corrosion tests were carried out, and these are summarized in the following tables.
Claims (12)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US93296478A | 1978-08-11 | 1978-08-11 |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| NO792606L NO792606L (en) | 1980-02-12 |
| NO155973B true NO155973B (en) | 1987-03-23 |
| NO155973C NO155973C (en) | 1987-07-01 |
Family
ID=25463220
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| NO792606A NO155973C (en) | 1978-08-11 | 1979-08-10 | PROCEDURE TO AA REDUCE THE CORROSION EFFECT OF Aqueous SALT SOLUTION ON SURFACTURED METAL SURFACES. |
Country Status (5)
| Country | Link |
|---|---|
| CA (1) | CA1113235A (en) |
| DE (1) | DE2932560A1 (en) |
| GB (1) | GB2027686B (en) |
| NL (1) | NL7906139A (en) |
| NO (1) | NO155973C (en) |
Families Citing this family (17)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| IL68362A0 (en) * | 1982-06-08 | 1983-07-31 | Great Lakes Chemical Corp | Corrosion inhibited high-density fluid composition |
| AT382893B (en) * | 1983-06-30 | 1987-04-27 | Nl Industries Inc | METHOD AND MEANS FOR REDUCING THE CORROSIVE EFFECT OF AQUEOUS SALT SOLUTIONS |
| US4536302A (en) * | 1983-06-30 | 1985-08-20 | Nl Industries Inc | Corrosion inhibition of aqueous brines |
| US4539122A (en) * | 1984-02-21 | 1985-09-03 | Halliburton Company | Corrosion inhibitor for heavy brines |
| US4728446A (en) * | 1984-07-31 | 1988-03-01 | The Dow Chemical Company | Corrosion inhibitor for brines |
| IL75307A (en) * | 1984-07-31 | 1988-11-15 | Dow Chemical Co | Corrosion inhibitor for brines |
| BR8605131A (en) * | 1985-02-04 | 1987-05-05 | Dow Chemical Co | CORROSION INHIBITOR FOR HIGH DENSITY PICKLES |
| DE3523088A1 (en) * | 1985-06-28 | 1987-01-08 | Hoechst Ag | METHOD FOR AVOIDING CORROSION OF METAL MATERIALS |
| US4836941A (en) * | 1986-01-29 | 1989-06-06 | The Dow Chemical Company | Clear brine fluids |
| EP0275304B1 (en) * | 1986-07-30 | 1991-01-16 | Great Lakes Chemical Corporation | Calcium-free clear high density fluids |
| US4784778A (en) * | 1986-09-30 | 1988-11-15 | Great Lakes Chemical Corp. | Corrosion inhibiting composition for zinc halide-based clear, high density fluids |
| US4784779A (en) * | 1986-09-30 | 1988-11-15 | Great Lakes Chemical Corp. | Corrosion inhibitors for clear, calcium-free high density fluids |
| US4980074A (en) * | 1986-10-22 | 1990-12-25 | The Dow Chemical Company | Corrosion inhibitors for aqueous brines |
| IL173706A (en) | 2006-02-13 | 2013-09-30 | Bromine Compounds Ltd | Antimony- based corrosion inhibitors for high density brine and a method for inhibiting corrosion by using them |
| US8007689B2 (en) * | 2006-02-13 | 2011-08-30 | Bromine Compounds Ltd. | Liquid composition suitable for use as a corrosion inhibitor and a method for its preparation |
| US8765020B2 (en) * | 2009-05-26 | 2014-07-01 | Baker Hughes Incorporated | Method for reducing metal corrosion |
| GB2496898B (en) | 2011-11-25 | 2020-10-28 | Petroliam Nasional Berhad Petronas | Corrosion inhibition |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3126950A (en) * | 1964-03-31 | Steel coupons in | ||
| US2602779A (en) * | 1947-09-11 | 1952-07-08 | Cities Service Oil Co | Method of inhibiting hydrogen sulfide corrosion of metals |
| US2574576A (en) * | 1949-10-12 | 1951-11-13 | Pure Oil Co | Prevention of corrosion of steel by brine containing dissolved oxygen |
| US4057390A (en) * | 1976-05-24 | 1977-11-08 | Petrolite Corporation | Sulfur-containing bis-quaternaries |
| US4100100A (en) * | 1977-03-28 | 1978-07-11 | The Dow Chemical Company | Cobalt-containing inhibitor for sour gas conditioning solutions |
| US4102804A (en) * | 1977-03-28 | 1978-07-25 | The Dow Chemical Company | Inhibitor for gas conditioning solutions |
-
1979
- 1979-07-24 CA CA332,464A patent/CA1113235A/en not_active Expired
- 1979-08-08 GB GB7927584A patent/GB2027686B/en not_active Expired
- 1979-08-10 DE DE19792932560 patent/DE2932560A1/en not_active Ceased
- 1979-08-10 NO NO792606A patent/NO155973C/en unknown
- 1979-08-10 NL NL7906139A patent/NL7906139A/en not_active Application Discontinuation
Also Published As
| Publication number | Publication date |
|---|---|
| DE2932560A1 (en) | 1980-02-14 |
| NL7906139A (en) | 1980-02-13 |
| CA1113235A (en) | 1981-12-01 |
| NO792606L (en) | 1980-02-12 |
| GB2027686B (en) | 1982-11-24 |
| GB2027686A (en) | 1980-02-27 |
| NO155973C (en) | 1987-07-01 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| NO155973B (en) | PROCEDURE TO AA REDUCE THE CORROSION EFFECT OF Aqueous SALT SOLUTION ON SURFACTURED METAL SURFACES. | |
| Schmitt | Application of inhibitors for acid media: report prepared for the European federation of corrosion working party on inhibitors | |
| CA1259481A (en) | Process and composition for inhibiting iron and steel corrosion | |
| CA2348468C (en) | Mercaptoalcohol corrosion inhibitors | |
| CA2720382C (en) | Organic corrosion inhibitor package for organic acids | |
| CA1213136A (en) | Corrosion inhibition of aqueous brines | |
| NO147446B (en) | PROCEDURE FOR DEHYDRATING CYCLIZATION OF ALIFATIC HYDROCARBONES OVER PLATINABLE ZEOLITE CATALYSTS IN ALKALIFORM | |
| US4784778A (en) | Corrosion inhibiting composition for zinc halide-based clear, high density fluids | |
| EP0290486A1 (en) | Corrosion inhibitors for clear, calcium-free high density fluids. | |
| US4728446A (en) | Corrosion inhibitor for brines | |
| US4640786A (en) | Phosphonium salt-containing corrosion inhibitors for high density brines | |
| US5512212A (en) | Corrosion inhibitor composition and method of use | |
| DK165699B (en) | SALTY BASKET WITH HIGH WEIGHTS AND USE THEREOF WHEN USING Boreholes | |
| AU576061B2 (en) | Corrosion inhibitor for high density brines | |
| US2799648A (en) | Inhibition of corrosion | |
| JPH0718029B2 (en) | High density brine corrosion inhibitor | |
| CA1256688A (en) | Corrosion inhibitor for brines | |
| US20200017752A1 (en) | Use Of A Composition Containing At Least One Biodegradable Sugar-Amide-Compound In Combination With At Least One Sulfur-Based Synergist For Corrosion Inhibition Of A Metallic Equipment In Oilfield Applications | |
| NO871926L (en) | PROCEDURE FOR AA PREVENTING ATTACK OF CORROSIVE FLUIDS POWDER METALS, AND PREPARATION FOR CARRYING OUT THE PROCEDURE. |