CA1081653A - Descaling metallic article in alkaline and neutral electrolytes - Google Patents
Descaling metallic article in alkaline and neutral electrolytesInfo
- Publication number
- CA1081653A CA1081653A CA273,975A CA273975A CA1081653A CA 1081653 A CA1081653 A CA 1081653A CA 273975 A CA273975 A CA 273975A CA 1081653 A CA1081653 A CA 1081653A
- Authority
- CA
- Canada
- Prior art keywords
- electrolyte
- process according
- nitrate
- potassium hydroxide
- potassium
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
- 239000003792 electrolyte Substances 0.000 title claims abstract description 41
- 230000007935 neutral effect Effects 0.000 title claims abstract description 6
- KWYUFKZDYYNOTN-UHFFFAOYSA-M Potassium hydroxide Chemical compound [OH-].[K+] KWYUFKZDYYNOTN-UHFFFAOYSA-M 0.000 claims abstract description 27
- FGIUAXJPYTZDNR-UHFFFAOYSA-N potassium nitrate Chemical compound [K+].[O-][N+]([O-])=O FGIUAXJPYTZDNR-UHFFFAOYSA-N 0.000 claims abstract description 18
- 238000000034 method Methods 0.000 claims abstract description 15
- 235000010333 potassium nitrate Nutrition 0.000 claims abstract description 9
- 239000004323 potassium nitrate Substances 0.000 claims abstract description 8
- 150000003839 salts Chemical class 0.000 claims abstract description 8
- 239000007864 aqueous solution Substances 0.000 claims abstract description 6
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 5
- QGZKDVFQNNGYKY-UHFFFAOYSA-O Ammonium Chemical compound [NH4+] QGZKDVFQNNGYKY-UHFFFAOYSA-O 0.000 claims abstract description 3
- VEXZGXHMUGYJMC-UHFFFAOYSA-M Chloride anion Chemical compound [Cl-] VEXZGXHMUGYJMC-UHFFFAOYSA-M 0.000 claims abstract description 3
- 229910002651 NO3 Inorganic materials 0.000 claims abstract description 3
- NHNBFGGVMKEFGY-UHFFFAOYSA-N Nitrate Chemical compound [O-][N+]([O-])=O NHNBFGGVMKEFGY-UHFFFAOYSA-N 0.000 claims abstract description 3
- QAOWNCQODCNURD-UHFFFAOYSA-L Sulfate Chemical compound [O-]S([O-])(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-L 0.000 claims abstract description 3
- 229910052783 alkali metal Inorganic materials 0.000 claims abstract description 3
- 150000001340 alkali metals Chemical class 0.000 claims abstract description 3
- PMZURENOXWZQFD-UHFFFAOYSA-L Sodium Sulfate Chemical group [Na+].[Na+].[O-]S([O-])(=O)=O PMZURENOXWZQFD-UHFFFAOYSA-L 0.000 claims description 3
- 229910052938 sodium sulfate Inorganic materials 0.000 claims description 3
- 235000011152 sodium sulphate Nutrition 0.000 claims description 3
- 150000001805 chlorine compounds Chemical class 0.000 claims description 2
- ZCDOYSPFYFSLEW-UHFFFAOYSA-N chromate(2-) Chemical class [O-][Cr]([O-])(=O)=O ZCDOYSPFYFSLEW-UHFFFAOYSA-N 0.000 claims description 2
- 150000001875 compounds Chemical class 0.000 claims description 2
- 150000004673 fluoride salts Chemical class 0.000 claims description 2
- 150000002823 nitrates Chemical class 0.000 claims description 2
- LSNNMFCWUKXFEE-UHFFFAOYSA-L sulfite Chemical class [O-]S([O-])=O LSNNMFCWUKXFEE-UHFFFAOYSA-L 0.000 claims description 2
- 150000003467 sulfuric acid derivatives Chemical class 0.000 claims description 2
- 229910000851 Alloy steel Inorganic materials 0.000 claims 1
- 230000001143 conditioned effect Effects 0.000 claims 1
- 150000002826 nitrites Chemical class 0.000 claims 1
- -1 per-chlorates Chemical class 0.000 claims 1
- 229940036562 perchlorate antithyroid preparations Drugs 0.000 claims 1
- 239000002253 acid Substances 0.000 description 7
- 229910052751 metal Inorganic materials 0.000 description 5
- 239000002184 metal Substances 0.000 description 5
- 239000007921 spray Substances 0.000 description 4
- 230000001419 dependent effect Effects 0.000 description 3
- 238000007654 immersion Methods 0.000 description 3
- 238000005554 pickling Methods 0.000 description 3
- 239000000243 solution Substances 0.000 description 3
- 229910052500 inorganic mineral Inorganic materials 0.000 description 2
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 description 2
- 239000011707 mineral Substances 0.000 description 2
- 239000010935 stainless steel Substances 0.000 description 2
- 229910001220 stainless steel Inorganic materials 0.000 description 2
- IOVCWXUNBOPUCH-UHFFFAOYSA-M Nitrite anion Chemical compound [O-]N=O IOVCWXUNBOPUCH-UHFFFAOYSA-M 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 150000007513 acids Chemical class 0.000 description 1
- 229910045601 alloy Inorganic materials 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- 230000003750 conditioning effect Effects 0.000 description 1
- 230000008094 contradictory effect Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 230000001771 impaired effect Effects 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000001590 oxidative effect Effects 0.000 description 1
- VLTRZXGMWDSKGL-UHFFFAOYSA-N perchloric acid Chemical class OCl(=O)(=O)=O VLTRZXGMWDSKGL-UHFFFAOYSA-N 0.000 description 1
- 230000008929 regeneration Effects 0.000 description 1
- 238000011069 regeneration method Methods 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 230000002311 subsequent effect Effects 0.000 description 1
- 238000011282 treatment Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- C25F—PROCESSES FOR THE ELECTROLYTIC REMOVAL OF MATERIALS FROM OBJECTS; APPARATUS THEREFOR
- C25F1/00—Electrolytic cleaning, degreasing, pickling or descaling
- C25F1/02—Pickling; Descaling
- C25F1/04—Pickling; Descaling in solution
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Cleaning And De-Greasing Of Metallic Materials By Chemical Methods (AREA)
- Electrolytic Production Of Non-Metals, Compounds, Apparatuses Therefor (AREA)
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US05/672,585 US4012299A (en) | 1976-04-01 | 1976-04-01 | Metallic descaling system |
| US672,585 | 1976-04-01 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA1081653A true CA1081653A (en) | 1980-07-15 |
Family
ID=24699177
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA273,975A Expired CA1081653A (en) | 1976-04-01 | 1977-03-15 | Descaling metallic article in alkaline and neutral electrolytes |
Country Status (11)
| Country | Link |
|---|---|
| US (1) | US4012299A (enExample) |
| JP (1) | JPS5921960B2 (enExample) |
| AU (1) | AU500783B2 (enExample) |
| CA (1) | CA1081653A (enExample) |
| DE (1) | DE2710459C2 (enExample) |
| ES (1) | ES456820A1 (enExample) |
| FR (1) | FR2346471A1 (enExample) |
| GB (1) | GB1521027A (enExample) |
| IT (1) | IT1083721B (enExample) |
| MX (1) | MX147981A (enExample) |
| SE (1) | SE7701729L (enExample) |
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4391685A (en) * | 1981-02-26 | 1983-07-05 | Republic Steel Corporation | Process for electrolytically pickling steel strip material |
| US4363709A (en) * | 1981-02-27 | 1982-12-14 | Allegheny Ludlum Steel Corporation | High current density, acid-free electrolytic descaling process |
| US4415415A (en) * | 1982-11-24 | 1983-11-15 | Allegheny Ludlum Steel Corporation | Method of controlling oxide scale formation and descaling thereof from metal articles |
| US4450058A (en) * | 1983-07-29 | 1984-05-22 | Allegheny Ludlum Steel Corporation | Method for producing bright stainless steel |
| JPH0759759B2 (ja) * | 1988-10-29 | 1995-06-28 | 株式会社日立製作所 | 焼鈍されたステンレス鋼帯の脱スケール方法及び装置 |
| TWI420001B (zh) * | 2011-09-01 | 2013-12-21 | Zen Material Technologies Inc | Remove the rust of stainless steel |
| CN113711383A (zh) | 2019-04-22 | 2021-11-26 | 第一工业制药株式会社 | 电极用粘结剂组合物、电极用涂料组合物、蓄电装置用电极以及蓄电装置 |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR1226856A (fr) * | 1958-12-23 | 1960-08-16 | Procédé de décapage des aciers alliés | |
| US3254011A (en) * | 1963-09-20 | 1966-05-31 | Allegheny Ludlum Steel | Electrolytic potassium hydroxide descaling |
| GB1082409A (en) * | 1963-12-04 | 1967-09-06 | Mitsubishi Heavy Ind Ltd | An electrolytic descaling solution |
| DE1546077C3 (de) * | 1965-07-08 | 1975-05-22 | Allegheny Ludlum Steel Corp., Pittsburgh, Pa. (V.St.A.) | Verfahren zum elektrolytischen Entfernen von Oxiden auf der Oberfläche von Edelstahl |
| US3429792A (en) * | 1965-07-30 | 1969-02-25 | Mitsubishi Heavy Ind Ltd | Method of electrolytically descaling and pickling steel |
| US3625900A (en) * | 1968-01-22 | 1971-12-07 | Kolene Corp | Prefused descaling bath constituent and method of maintaining a constant chemical composition of a bath |
| JPS4967837A (enExample) * | 1972-11-02 | 1974-07-01 |
-
1976
- 1976-04-01 US US05/672,585 patent/US4012299A/en not_active Expired - Lifetime
-
1977
- 1977-02-16 SE SE7701729A patent/SE7701729L/ not_active Application Discontinuation
- 1977-02-16 AU AU22313/77A patent/AU500783B2/en not_active Expired
- 1977-02-28 GB GB8323/77A patent/GB1521027A/en not_active Expired
- 1977-03-08 FR FR7706813A patent/FR2346471A1/fr active Granted
- 1977-03-10 DE DE2710459A patent/DE2710459C2/de not_active Expired
- 1977-03-10 IT IT48414/77A patent/IT1083721B/it active
- 1977-03-14 JP JP52027886A patent/JPS5921960B2/ja not_active Expired
- 1977-03-14 ES ES456820A patent/ES456820A1/es not_active Expired
- 1977-03-15 CA CA273,975A patent/CA1081653A/en not_active Expired
- 1977-03-24 MX MX168494A patent/MX147981A/es unknown
Also Published As
| Publication number | Publication date |
|---|---|
| AU500783B2 (en) | 1979-05-31 |
| FR2346471A1 (fr) | 1977-10-28 |
| MX147981A (es) | 1983-02-22 |
| FR2346471B1 (enExample) | 1981-12-18 |
| SE7701729L (sv) | 1977-10-02 |
| JPS52120233A (en) | 1977-10-08 |
| DE2710459C2 (de) | 1983-01-13 |
| GB1521027A (en) | 1978-08-09 |
| ES456820A1 (es) | 1978-02-16 |
| AU2231377A (en) | 1978-08-24 |
| IT1083721B (it) | 1985-05-25 |
| JPS5921960B2 (ja) | 1984-05-23 |
| US4012299A (en) | 1977-03-15 |
| DE2710459A1 (de) | 1977-10-13 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| MKEX | Expiry |