BR7410603D0 - Processo para apassivacao de particulas de ferro esponja - Google Patents
Processo para apassivacao de particulas de ferro esponjaInfo
- Publication number
- BR7410603D0 BR7410603D0 BR10603/74A BR1060374A BR7410603D0 BR 7410603 D0 BR7410603 D0 BR 7410603D0 BR 10603/74 A BR10603/74 A BR 10603/74A BR 1060374 A BR1060374 A BR 1060374A BR 7410603 D0 BR7410603 D0 BR 7410603D0
- Authority
- BR
- Brazil
- Prior art keywords
- passion
- iron particles
- sponge iron
- sponge
- particles
- Prior art date
Links
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
- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- C23C8/00—Solid state diffusion of only non-metal elements into metallic material surfaces; Chemical surface treatment of metallic material by reaction of the surface with a reactive gas, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals
- C23C8/06—Solid state diffusion of only non-metal elements into metallic material surfaces; Chemical surface treatment of metallic material by reaction of the surface with a reactive gas, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals using gases
- C23C8/08—Solid state diffusion of only non-metal elements into metallic material surfaces; Chemical surface treatment of metallic material by reaction of the surface with a reactive gas, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals using gases only one element being applied
- C23C8/10—Oxidising
- C23C8/12—Oxidising using elemental oxygen or ozone
- C23C8/14—Oxidising of ferrous surfaces
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J19/00—Chemical, physical or physico-chemical processes in general; Their relevant apparatus
- B01J19/0006—Controlling or regulating processes
- B01J19/002—Avoiding undesirable reactions or side-effects, e.g. avoiding explosions, or improving the yield by suppressing side-reactions
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21B—MANUFACTURE OF IRON OR STEEL
- C21B13/00—Making spongy iron or liquid steel, by direct processes
- C21B13/0086—Conditioning, transformation of reduced iron ores
-
- 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
- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- C23C8/00—Solid state diffusion of only non-metal elements into metallic material surfaces; Chemical surface treatment of metallic material by reaction of the surface with a reactive gas, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals
- C23C8/06—Solid state diffusion of only non-metal elements into metallic material surfaces; Chemical surface treatment of metallic material by reaction of the surface with a reactive gas, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals using gases
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P10/00—Technologies related to metal processing
- Y02P10/20—Recycling
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US00428147A US3844764A (en) | 1973-12-26 | 1973-12-26 | Process for the continuous passivation of sponge iron particles |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| BR7410603D0 true BR7410603D0 (pt) | 1975-09-02 |
Family
ID=23697735
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| BR10603/74A BR7410603D0 (pt) | 1973-12-26 | 1974-12-19 | Processo para apassivacao de particulas de ferro esponja |
Country Status (19)
| Country | Link |
|---|---|
| US (1) | US3844764A (pt) |
| JP (1) | JPS50116343A (pt) |
| AR (1) | AR201803A1 (pt) |
| AT (1) | AT337225B (pt) |
| BE (1) | BE823549A (pt) |
| BR (1) | BR7410603D0 (pt) |
| CA (1) | CA1028602A (pt) |
| ES (1) | ES433141A1 (pt) |
| FR (1) | FR2256261B1 (pt) |
| GB (1) | GB1445650A (pt) |
| IT (1) | IT1027824B (pt) |
| KE (1) | KE2998A (pt) |
| LU (1) | LU71527A1 (pt) |
| MY (1) | MY8000219A (pt) |
| NL (1) | NL7416614A (pt) |
| NO (1) | NO137450C (pt) |
| SE (1) | SE7416089L (pt) |
| SU (1) | SU563923A3 (pt) |
| ZA (1) | ZA748089B (pt) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4070180A (en) * | 1976-08-23 | 1978-01-24 | United States Steel Corporation | Process for the passivation of sponge iron utilizing reducing gases containing free oxygen |
| DE3419638A1 (de) * | 1984-05-25 | 1985-11-28 | M.A.N. Maschinenfabrik Augsburg-Nürnberg AG, 8000 München | Verfahren zur erzeugung von oxidischen schutzschichten auf der oberflaeche von metallen bzw. metallegierungen |
| GB2288411B (en) * | 1994-03-24 | 1998-04-15 | Silberline Ltd | Metal pigments |
| US5849817A (en) * | 1994-03-24 | 1998-12-15 | Silberline Limited | Metal pigments |
| JP2001278420A (ja) * | 2000-03-30 | 2001-10-10 | Nippon Steel Corp | 還元鉄の屋外貯蔵方法 |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2677669A (en) * | 1945-01-11 | 1954-05-04 | Atomic Energy Commission | Stepwise stabilization of reduced metal catalysts |
| US2766108A (en) * | 1955-06-30 | 1956-10-09 | Bethlehem Steel Corp | Method of deactivating sponge iron |
| US3147106A (en) * | 1961-04-06 | 1964-09-01 | Hydrocarbon Research Inc | Use of lined passivation chamber in an iron powder passivating process |
| US3615340A (en) * | 1968-11-18 | 1971-10-26 | Exxon Research Engineering Co | Quenching and passivation of particulate metals |
| US3617394A (en) * | 1968-11-22 | 1971-11-02 | Exxon Research Engineering Co | Kiln passivation of reduced ores |
-
1973
- 1973-12-26 US US00428147A patent/US3844764A/en not_active Expired - Lifetime
-
1974
- 1974-12-18 GB GB5470074A patent/GB1445650A/en not_active Expired
- 1974-12-19 AT AT1013474A patent/AT337225B/de not_active IP Right Cessation
- 1974-12-19 IT IT30749/74A patent/IT1027824B/it active
- 1974-12-19 LU LU71527A patent/LU71527A1/xx unknown
- 1974-12-19 ES ES433141A patent/ES433141A1/es not_active Expired
- 1974-12-19 FR FR7442046A patent/FR2256261B1/fr not_active Expired
- 1974-12-19 BE BE2054040A patent/BE823549A/xx not_active IP Right Cessation
- 1974-12-19 NL NL7416614A patent/NL7416614A/xx not_active Application Discontinuation
- 1974-12-19 JP JP49146267A patent/JPS50116343A/ja active Pending
- 1974-12-19 ZA ZA00748089A patent/ZA748089B/xx unknown
- 1974-12-19 NO NO744604A patent/NO137450C/no unknown
- 1974-12-19 SE SE7416089A patent/SE7416089L/xx unknown
- 1974-12-19 BR BR10603/74A patent/BR7410603D0/pt unknown
- 1974-12-19 AR AR256990A patent/AR201803A1/es active
- 1974-12-24 CA CA216,773A patent/CA1028602A/en not_active Expired
- 1974-12-26 SU SU7402096391A patent/SU563923A3/ru active
-
1979
- 1979-10-24 KE KE2998A patent/KE2998A/xx unknown
-
1980
- 1980-12-30 MY MY219/80A patent/MY8000219A/xx unknown
Also Published As
| Publication number | Publication date |
|---|---|
| US3844764A (en) | 1974-10-29 |
| NL7416614A (nl) | 1975-06-30 |
| SE7416089L (pt) | 1975-06-27 |
| GB1445650A (en) | 1976-08-11 |
| SU563923A3 (ru) | 1977-06-30 |
| LU71527A1 (pt) | 1975-06-17 |
| BE823549A (fr) | 1975-04-16 |
| AR201803A1 (es) | 1975-04-15 |
| NO744604L (pt) | 1975-07-21 |
| MY8000219A (en) | 1980-12-31 |
| ZA748089B (en) | 1976-01-28 |
| FR2256261B1 (pt) | 1979-07-27 |
| NO137450B (no) | 1977-11-21 |
| ES433141A1 (es) | 1976-11-16 |
| AT337225B (de) | 1977-06-27 |
| DE2461152A1 (de) | 1975-07-03 |
| JPS50116343A (pt) | 1975-09-11 |
| AU7652174A (en) | 1976-06-17 |
| NO137450C (no) | 1978-03-01 |
| KE2998A (en) | 1979-12-14 |
| CA1028602A (en) | 1978-03-28 |
| DE2461152B2 (de) | 1976-10-28 |
| FR2256261A1 (pt) | 1975-07-25 |
| IT1027824B (it) | 1978-12-20 |
| ATA1013474A (de) | 1976-10-15 |
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