NO118639B - - Google Patents
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- Publication number
- NO118639B NO118639B NO16698967A NO16698967A NO118639B NO 118639 B NO118639 B NO 118639B NO 16698967 A NO16698967 A NO 16698967A NO 16698967 A NO16698967 A NO 16698967A NO 118639 B NO118639 B NO 118639B
- Authority
- NO
- Norway
- Prior art keywords
- pickling
- bath
- iron
- steam
- solution
- Prior art date
Links
- 238000005554 pickling Methods 0.000 claims description 68
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 50
- 239000000243 solution Substances 0.000 claims description 35
- 238000000034 method Methods 0.000 claims description 26
- 229910052742 iron Inorganic materials 0.000 claims description 25
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 15
- 229910000831 Steel Inorganic materials 0.000 claims description 12
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 claims description 12
- 239000010959 steel Substances 0.000 claims description 12
- 238000010438 heat treatment Methods 0.000 claims description 10
- SURQXAFEQWPFPV-UHFFFAOYSA-L iron(2+) sulfate heptahydrate Chemical compound O.O.O.O.O.O.O.[Fe+2].[O-]S([O-])(=O)=O SURQXAFEQWPFPV-UHFFFAOYSA-L 0.000 claims description 9
- 238000003756 stirring Methods 0.000 claims description 9
- 238000009833 condensation Methods 0.000 claims description 8
- 230000005494 condensation Effects 0.000 claims description 8
- 238000001704 evaporation Methods 0.000 claims description 7
- 230000008020 evaporation Effects 0.000 claims description 7
- 235000003891 ferrous sulphate Nutrition 0.000 claims description 7
- 239000011790 ferrous sulphate Substances 0.000 claims description 7
- 238000010790 dilution Methods 0.000 claims description 5
- 239000012895 dilution Substances 0.000 claims description 5
- 229910000359 iron(II) sulfate Inorganic materials 0.000 claims description 5
- 238000006243 chemical reaction Methods 0.000 claims description 3
- 230000001105 regulatory effect Effects 0.000 claims description 3
- 239000002253 acid Substances 0.000 description 29
- 239000007788 liquid Substances 0.000 description 15
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 description 6
- 239000000047 product Substances 0.000 description 6
- 238000001816 cooling Methods 0.000 description 5
- BAUYGSIQEAFULO-UHFFFAOYSA-L iron(2+) sulfate (anhydrous) Chemical class [Fe+2].[O-]S([O-])(=O)=O BAUYGSIQEAFULO-UHFFFAOYSA-L 0.000 description 5
- 238000003860 storage Methods 0.000 description 5
- 239000013078 crystal Substances 0.000 description 4
- 239000002184 metal Substances 0.000 description 3
- 229910052751 metal Inorganic materials 0.000 description 3
- 238000006386 neutralization reaction Methods 0.000 description 3
- 239000002699 waste material Substances 0.000 description 3
- 238000013019 agitation Methods 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 2
- 238000002425 crystallisation Methods 0.000 description 2
- 230000008025 crystallization Effects 0.000 description 2
- 239000012530 fluid Substances 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 239000003595 mist Substances 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 238000001556 precipitation Methods 0.000 description 2
- 238000011084 recovery Methods 0.000 description 2
- 239000008237 rinsing water Substances 0.000 description 2
- 239000011265 semifinished product Substances 0.000 description 2
- 244000007645 Citrus mitis Species 0.000 description 1
- 230000002378 acidificating effect Effects 0.000 description 1
- 239000003513 alkali Substances 0.000 description 1
- 230000033228 biological regulation Effects 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 238000011109 contamination Methods 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 238000004090 dissolution Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005868 electrolysis reaction Methods 0.000 description 1
- -1 ferrous metals Chemical class 0.000 description 1
- 150000004688 heptahydrates Chemical class 0.000 description 1
- 238000005098 hot rolling Methods 0.000 description 1
- 239000003112 inhibitor Substances 0.000 description 1
- 159000000014 iron salts Chemical class 0.000 description 1
- 150000004682 monohydrates Chemical class 0.000 description 1
- 230000003472 neutralizing effect Effects 0.000 description 1
- 230000008929 regeneration Effects 0.000 description 1
- 238000011069 regeneration method Methods 0.000 description 1
- 239000010802 sludge Substances 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 230000001502 supplementing effect Effects 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
- C23G—CLEANING OR DE-GREASING OF METALLIC MATERIAL BY CHEMICAL METHODS OTHER THAN ELECTROLYSIS
- C23G1/00—Cleaning or pickling metallic material with solutions or molten salts
- C23G1/36—Regeneration of waste pickling liquors
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
- C01B17/00—Sulfur; Compounds thereof
- C01B17/69—Sulfur trioxide; Sulfuric acid
- C01B17/90—Separation; Purification
- C01B17/901—Recovery from spent acids containing metallic ions, e.g. hydrolysis acids, pickling acids
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01G—COMPOUNDS CONTAINING METALS NOT COVERED BY SUBCLASSES C01D OR C01F
- C01G49/00—Compounds of iron
- C01G49/14—Sulfates
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Inorganic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Cleaning And De-Greasing Of Metallic Materials By Chemical Methods (AREA)
- Removal Of Specific Substances (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CA953324 | 1966-02-26 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| NO118639B true NO118639B (sk) | 1970-01-19 |
Family
ID=4142463
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| NO16698967A NO118639B (sk) | 1966-02-26 | 1967-02-23 |
Country Status (9)
| Country | Link |
|---|---|
| JP (1) | JPS5020009B1 (sk) |
| BE (1) | BE694575A (sk) |
| DE (1) | DE1621609A1 (sk) |
| ES (1) | ES337289A1 (sk) |
| FI (1) | FI45867C (sk) |
| FR (1) | FR1512134A (sk) |
| GB (1) | GB1121809A (sk) |
| NO (1) | NO118639B (sk) |
| SE (1) | SE315464B (sk) |
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SE8501990D0 (sv) * | 1985-04-24 | 1985-04-24 | Pharmacia Ab | Beleggningsforfarande |
| US4899798A (en) * | 1988-11-28 | 1990-02-13 | Southwire Company | Method of and apparatus for recovering and reusing organic pickling vapors |
| FI119248B (fi) * | 2001-03-09 | 2008-09-15 | Metso Paper Inc | Prosessi ja laitteisto metallikappaleen peittaamiseksi hitsauksen jälkeen |
| EP1609760A1 (de) * | 2004-06-22 | 2005-12-28 | Alexander Kehrmann | Verfahren zur Gewinnung von Eisen(II)sulfatheptahydrat |
| CN110029352A (zh) * | 2018-03-08 | 2019-07-19 | 叶涛 | 一种金属制件的环保酸洗剂及其使用方法 |
| CN112939271A (zh) * | 2021-01-29 | 2021-06-11 | 天津市华旺钢管制造有限公司 | 一种带钢酸洗后水洗液循环利用装置 |
| CN114772611B (zh) * | 2022-03-18 | 2023-10-27 | 宣化钢铁集团有限责任公司 | 一种含氨酸汽制取硫酸铵的生产系统及方法 |
-
1967
- 1967-02-02 GB GB504667A patent/GB1121809A/en not_active Expired
- 1967-02-16 FI FI46567A patent/FI45867C/fi not_active Application Discontinuation
- 1967-02-22 JP JP1096267A patent/JPS5020009B1/ja active Pending
- 1967-02-22 FR FR95981A patent/FR1512134A/fr not_active Expired
- 1967-02-23 NO NO16698967A patent/NO118639B/no unknown
- 1967-02-23 SE SE248367A patent/SE315464B/xx unknown
- 1967-02-24 DE DE19671621609 patent/DE1621609A1/de not_active Ceased
- 1967-02-24 BE BE694575D patent/BE694575A/xx unknown
- 1967-02-25 ES ES337289A patent/ES337289A1/es not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| GB1121809A (en) | 1968-07-31 |
| ES337289A1 (es) | 1968-02-01 |
| BE694575A (sk) | 1967-07-31 |
| SE315464B (sk) | 1969-09-29 |
| JPS5020009B1 (sk) | 1975-07-11 |
| DE1621609A1 (de) | 1971-05-27 |
| FI45867B (sk) | 1972-06-30 |
| FR1512134A (fr) | 1968-02-02 |
| FI45867C (fi) | 1972-10-10 |
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