FR2420509A1 - Ferric oxide and hydrochloric acid prodn. - by ferric chloride soln. pyrolysis using concurrent flow of soln. spray and combustion gas to give increased oxide yield (OE 15.4.79) - Google Patents
Ferric oxide and hydrochloric acid prodn. - by ferric chloride soln. pyrolysis using concurrent flow of soln. spray and combustion gas to give increased oxide yield (OE 15.4.79)Info
- Publication number
- FR2420509A1 FR2420509A1 FR7906895A FR7906895A FR2420509A1 FR 2420509 A1 FR2420509 A1 FR 2420509A1 FR 7906895 A FR7906895 A FR 7906895A FR 7906895 A FR7906895 A FR 7906895A FR 2420509 A1 FR2420509 A1 FR 2420509A1
- Authority
- FR
- France
- Prior art keywords
- soln
- oxide
- pyrolysis
- ferric
- spray
- 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.)
- Granted
Links
- 238000000197 pyrolysis Methods 0.000 title abstract 3
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 title 2
- 229910021578 Iron(III) chloride Inorganic materials 0.000 title 1
- 239000000567 combustion gas Substances 0.000 title 1
- UQSXHKLRYXJYBZ-UHFFFAOYSA-N iron oxide Inorganic materials [Fe]=O UQSXHKLRYXJYBZ-UHFFFAOYSA-N 0.000 title 1
- RBTARNINKXHZNM-UHFFFAOYSA-K iron trichloride Chemical compound Cl[Fe](Cl)Cl RBTARNINKXHZNM-UHFFFAOYSA-K 0.000 title 1
- NDLPOXTZKUMGOV-UHFFFAOYSA-N oxo(oxoferriooxy)iron hydrate Chemical compound O.O=[Fe]O[Fe]=O NDLPOXTZKUMGOV-UHFFFAOYSA-N 0.000 title 1
- 239000007921 spray Substances 0.000 title 1
- 238000011084 recovery Methods 0.000 abstract 3
- 239000002253 acid Substances 0.000 abstract 2
- 229910000831 Steel Inorganic materials 0.000 abstract 1
- 238000010521 absorption reaction Methods 0.000 abstract 1
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 abstract 1
- 238000000034 method Methods 0.000 abstract 1
- 238000005554 pickling Methods 0.000 abstract 1
- 239000007787 solid Substances 0.000 abstract 1
- 239000010959 steel Substances 0.000 abstract 1
- 238000005979 thermal decomposition reaction Methods 0.000 abstract 1
- 238000009834 vaporization Methods 0.000 abstract 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract 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
- C01B7/00—Halogens; Halogen acids
- C01B7/01—Chlorine; Hydrogen chloride
- C01B7/03—Preparation from chlorides
- C01B7/035—Preparation of hydrogen chloride from chlorides
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01G—COMPOUNDS CONTAINING METALS NOT COVERED BY SUBCLASSES C01D OR C01F
- C01G49/00—Compounds of iron
- C01G49/02—Oxides; Hydroxides
- C01G49/06—Ferric oxide [Fe2O3]
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)
- Compounds Of Iron (AREA)
- Treating Waste Gases (AREA)
Abstract
In the pyrolysis or thermal decomposition of aq. Fe Cl3 solns. contg. HCl, esp. solns. contg. >150 g/l Fe3+ by vaporising the soln. in a reactor, mechanically separating solid pyrolysis prods. from the gas mixt. and recovery of HCl acid e.g. by adiabatic absorption in water or aq. soln., the improvement is that the droplets formed by vaporisation of the soln. are entrained in a hot gaseous medium travelling in the same direction as the soln. Used e.g. for recovery of Fe2O3 and HCl acid (for recycle) from pickling of steel sheet. The process can be used to treat solns. contg. 2% Cl- and gives 85-98% Fe recoveries as the oxide by dry centrifuging in a cyclone downstream of the reactor.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| AT195478A AT353566B (en) | 1978-03-20 | 1978-03-20 | PROCESS FOR THE THERMAL DECOMPOSITION OF Aqueous, SALT-ACID IRON (III) CHLORIDE SOLUTIONS |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| FR2420509A1 true FR2420509A1 (en) | 1979-10-19 |
| FR2420509B1 FR2420509B1 (en) | 1986-05-09 |
Family
ID=3524630
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| FR7906895A Granted FR2420509A1 (en) | 1978-03-20 | 1979-03-19 | Ferric oxide and hydrochloric acid prodn. - by ferric chloride soln. pyrolysis using concurrent flow of soln. spray and combustion gas to give increased oxide yield (OE 15.4.79) |
Country Status (4)
| Country | Link |
|---|---|
| AT (1) | AT353566B (en) |
| BE (1) | BE874883A (en) |
| FR (1) | FR2420509A1 (en) |
| HU (1) | HU181950B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0850881A1 (en) * | 1996-12-27 | 1998-07-01 | Ruthner, Michael Johann, Dipl.Ing. Dr.mont. | Process and apparatus for the preparation of iron oxides from solutions containing hydrochloric acid iron oxide chloride |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| AT407756B (en) * | 1999-03-22 | 2001-06-25 | Andritz Patentverwaltung | METHOD FOR RECOVERY OF ACIDS FROM METAL SOLUTIONS OF THESE ACIDS, PREFERABLY HC1 AND FE COMPOUNDS |
| US8071067B2 (en) | 2009-05-26 | 2011-12-06 | Kemira Water Solutions, Inc. | Processes for making stable ferric chloride solutions |
| AT526794A1 (en) * | 2022-12-20 | 2024-07-15 | Andritz Ag Maschf | ACID REGENERATION PROCESS |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1309744A (en) * | 1969-03-31 | 1973-03-14 | Woodall Duckham Ltd | Decomposition of metal chlorides |
-
1978
- 1978-03-20 AT AT195478A patent/AT353566B/en not_active IP Right Cessation
-
1979
- 1979-03-16 HU HURU000169 patent/HU181950B/en not_active IP Right Cessation
- 1979-03-16 BE BE2/57666A patent/BE874883A/en not_active IP Right Cessation
- 1979-03-19 FR FR7906895A patent/FR2420509A1/en active Granted
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1309744A (en) * | 1969-03-31 | 1973-03-14 | Woodall Duckham Ltd | Decomposition of metal chlorides |
Non-Patent Citations (1)
| Title |
|---|
| STAHL UND EISEN, année 93, no. 15, 19 juillet 1973 (D]SSELDORF, DE) "Neues Verfahren zur Regeneration von Salzsa}re bei niedrigen Temperaturen", pages 689-690 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0850881A1 (en) * | 1996-12-27 | 1998-07-01 | Ruthner, Michael Johann, Dipl.Ing. Dr.mont. | Process and apparatus for the preparation of iron oxides from solutions containing hydrochloric acid iron oxide chloride |
| US5911967A (en) * | 1996-12-27 | 1999-06-15 | Ruthner; Michael J. | Process and apparatus for production of ferric oxide from iron chloride solutions |
Also Published As
| Publication number | Publication date |
|---|---|
| ATA195478A (en) | 1979-04-15 |
| FR2420509B1 (en) | 1986-05-09 |
| BE874883A (en) | 1979-07-16 |
| AT353566B (en) | 1979-11-26 |
| HU181950B (en) | 1983-11-28 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| ST | Notification of lapse |